A method for displaying a stereoscopic image, the method comprises generating k images for a left eye and k images for a right eye based on a left-eye image and a right-eye image, where â€˜kâ€™ is a natural number greater than two, correcting an image currently received using an n-th image of the k images for the left eye and the k images for the right eye that are previously received, where â€˜nâ€™ is a natural number greater than â€˜kâ€™, displaying corrected k images for the left eye and corrected k images for the right eye on a display panel, and providing the display panel with lights based on the image displayed on the display panel.

Description

16 parts

›This application claims priority to Korean Patent Application…

This application claims priority to Korean Patent Application No. 10-2010-0115539, filed on Nov. 19, 2010, and all the benefits accruing therefrom under 35 U.S.C. §119, the content of which in its entirety is herein incorporated by reference.

›BACKGROUND OF THE INVENTION

1. Field of the Invention

Exemplary embodiments of the invention relate to a method for displaying a stereoscopic image and a display apparatus for performing the method. More particularly, exemplary embodiments of the invention relate to a method for displaying a stereoscopic image capable of substantially enhancing a display quality and a display apparatus for performing the method.

2. Description of the Related Art

Generally, a display apparatus displays two-dimensional images (hereinafter also referred to as “2D” images). Recently, according to increasing demand for the display of three-dimensional images (hereinafter also referred to as “3D” images) in various fields such as games and movies, for example, display apparatuses for displaying 3D images have been developed.

A 3D image display apparatus typically displays a 3D image using binocular parallax, which is a process of directing two distinct images to the left and right eyes of an observer. By directing a left-eye image to a left eye of the observer and a right-eye image to a right eye of the observer, the observer is able to perceive a sense of depth.

The 3D image display apparatus using the binocular parallax may include a stereoscopic-type display apparatus and an auto-stereoscopic-type display apparatus according to whether specific glasses are necessary to properly view the 3D display device. Furthermore, the stereoscopic-type display apparatus may include various types of display apparatus such as a passive-polarized-glasses-type display apparatus and an active-shutter-glasses-type display apparatus, for example. In the passive-polarized-glasses-type display apparatus, a pair of glasses having substantially different polarizing axes is used by a user. In the active-shutter-glasses-type display apparatus, display of the left-eye image and the right-eye image are alternated, and a pair of glasses in which a left-eye shutter and a right-eye shutter are closed and opened in synchronization with the alternating display is used.

Since a liquid crystal display (“LCD”) apparatus is driven by a progressive scan method, periods of applying line data into plural horizontal lines of the LCD apparatus are substantially different from each other, and liquid crystal response speeds for the same period are substantially different from each other. As such, when a left-eye image and a right-eye image are alternately displayed on a display panel of the LCD apparatus to display a stereoscopic image in accordance with driving characteristics of the LCD apparatus, a crosstalk is substantially greatly generated due to a gradation difference between the left-eye image and the right-eye image and an interval in which the left-eye image and the right-eye image are simultaneously displayed due to the progressive scan method. The crosstalk may substantially decrease a display quality of a stereoscopic image.

›SUMMARY OF THE INVENTION

Exemplary embodiments of the invention provide a method of displaying a stereoscopic image capable of preventing a crosstalk of the stereoscopic image.

Exemplary embodiments of the invention also provide a display apparatus for performing the above-mentioned method.

According to one exemplary embodiment of the invention, there is provided a method for displaying a stereoscopic image. In the method, k images for a left eye and k images for a right eye is generated based on a left-eye image and a right-eye image, where ‘k’ is a natural number greater than two. An image currently received is corrected using an n-th image of the k images for a left eye and the k images for a right eye that are previously received, where ‘n’ is a natural number greater than ‘k’. Corrected k images for the left eye and corrected k images for the right eye are displayed on a display panel. The display panel is provided with lights based on the image displayed on the display panel.

According to another exemplary embodiment of the invention, a display apparatus includes a frame control part, a data correcting part, a panel driving part and a light source part. The frame control part is configured to generate k images for a left eye and k images for a right eye based on a left-eye image and a right-eye image, where ‘k’ is a natural number greater than two. The data correcting part is configured to correct an image currently received using an n-th image of the k images for a left eye and the k images for a right eye that are previously received, where ‘n’ is a natural number greater than ‘k’. The panel driving part is configured to display corrected k images for the left eye and corrected k images for the right eye on a display panel. The light source part is configured to provide the display panel with lights based on the image displayed on the display panel.

According to some exemplary embodiments of the invention, the left-eye image (or the right-eye image) is repeatedly corrected in k times, so that a display quality of a stereoscopic image may be substantially enhanced. Moreover, lights are not provided to the display panel during an interval in which the left-eye image and the right-eye image are combined to be displayed on the display panel, so that a crosstalk of a stereoscopic image may be prevented. Moreover, a black image is inserted between the left-eye image and the right-eye image, so that a time capable of correcting a slow falling response speed of liquid crystal may be secured. Thus, a duty ratio of a light source driving signal is altered, so that luminance efficiency may be substantially enhanced.

›BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features and advantages of the invention will become more apparent by describing in detailed exemplary embodiments thereof with reference to the accompanying drawings, in which:

FIG. 1 is a block diagram illustrating an exemplary embodiment of a display apparatus;

FIGS. 2A to 2E are block diagrams illustrating various exemplary embodiments of a light source part of FIG. 1 ;

FIG. 3 is a block diagram illustrating an exemplary embodiment of a data correcting part of FIG. 1 ;

FIG. 4 is a schematic diagram explaining an exemplary embodiment of a driving method of a data correcting part of FIG. 3 ;

FIG. 5 is a schematic diagram explaining an exemplary embodiment of a look up table of a correcting part of FIG. 4 ;

FIG. 6 is a schematic diagram explaining an exemplary embodiment of a driving method of the data correcting part of FIG. 3 ;

FIG. 7 is a schematic diagram explaining another exemplary embodiment of a frame control part;

FIG. 8 is a schematic diagram explaining an exemplary embodiment of a driving method of a display apparatus including a frame control part of FIG. 7 ;

FIG. 9 is a block diagram illustrating another exemplary embodiment of a display apparatus;

FIGS. 10A and 10B are block diagrams illustrating various exemplary embodiments of a light source part of FIG. 9 ;

FIG. 11 is a schematic diagram explaining an exemplary embodiment of a driving method of a display apparatus of FIG. 9 ;

FIG. 12 is a schematic diagram explaining another exemplary embodiment of a driving method of a display apparatus;

FIG. 13 is a block diagram illustrating another exemplary embodiment of a display apparatus;

FIG. 14 is a schematic diagram explaining an exemplary embodiment of a driving method of the display apparatus of FIG. 13 ; and

FIG. 15 is a schematic diagram explaining another exemplary embodiment of a driving method of a display apparatus.

›DETAILED DESCRIPTION OF THE INVENTION · 1 of 12

It will be understood that, although the terms first, second, third, etc., may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

All methods described herein can be performed in a suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”), is intended merely to better illustrate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention as used herein.

Hereinafter, exemplary embodiments of the invention will be explained in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating an exemplary embodiment of a display apparatus. FIGS. 2A to 2E are block diagrams in accordance with various exemplary embodiments of a light source part of FIG. 1 .

Referring to FIG. 1 , the display apparatus includes a stereoscopic image processing part 110 , a frame control part 120 , a control part 130 , a data correcting part 150 , a display panel 200 , a panel driving part 300 , a light source part 500 , a light source driving part 600 and an eyeglasses part 700 .

The stereoscopic image processing part 110 receives a compressed image LR, and generates a left-eye image L and a right-eye image R using the compressed image LR. In one embodiment, the stereoscopic image processing part 110 respectively generates a left-eye image L and a right-eye image R of about 120 Hertz (Hz) using the compressed image of about 60 Hz, for example. In this case, an image of about 60 Hz is an image for displaying one frame image in a frequency of about 60 Hz, and the image of about 120 Hz is an image for displaying one frame image in a frequency of about 120 Hz.

The frame control part 120 receives the left-eye image L and the right-eye image R. The frame control part 120 outputs k images for a left eye using the left-eye image L, and outputs k images for a right eye using the right-eye image R. In this case, ‘k’ is a natural number greater than 2.

In one embodiment, for example, the frame control part 120 generates a first left-eye image L 1 , a second left-eye image L 2 , a third left-eye image L 3 and a fourth left-eye image L 4 by repeatedly displaying four times the left-eye image L of about 120 Hz. Moreover, the frame control part 120 generates a first right-eye image R 1 , a second right-eye image R 2 , a third right-eye image R 3 and a fourth right-eye image R 4 by repeatedly displaying four times the right-eye image R of about 120 Hz. The first to fourth left-eye images L 1 , L 2 , L 3 and L 4 and the first to fourth right-eye images R 1 , R 2 , R 3 and R 4 are an image of about 480 Hz for displaying one frame image in a frequency of about 480 Hz. The left-eye image L and the right-eye image R are repeatedly displayed on the display panel 200 in k times, so that a display quality of a stereoscopic image may be substantially enhanced.

The control part 130 controls an operation of the data correcting part 150 based on a synchronization signal provided from the frame control part 120 . Moreover, the control part 130 controls a driving timing of the display apparatus.

The data correcting part 150 corrects k images for the left eye and k images for the right eye that are provided from the frame control part 120 using a plurality of look up tables. The data correcting part 150 determines an n-th image of the k images as a reference data of a previous frame, and corrects the k images for the left eye of a current frame or the k images for the right eye of a current frame using the reference data. In this case, ‘n’ is a natural number smaller than k.

The display panel 200 includes a plurality of pixels displaying an image. In one embodiment, for example, each of the pixels includes a thin-film transistor (“TFT”) TR connected to a gate line GL and a data line DL, and a liquid crystal capacitor CLC including a first terminal electrically connected to the TFT TR and a second terminal receiving a common voltage Vcom.

The panel driving part 300 includes a data driving part 310 and a gate driving part 330 to display k images for the left eye and k image for the right eye that are corrected by the data correcting part 150 . The data driving part 310 converts the left-eye image and the right-eye image corrected by the data correcting part 150 into a data voltage, and provides the data line DL with the data voltage in accordance with a control of the control part 130 . The gate driving part 330 generates a gate signal to provide the gate line GL with the gate signal in accordance with a control of the control part 130 . In one exemplary embodiment, the panel driving part 300 displays a frame image on the display panel 200 in a progressive scan method.

›DETAILED DESCRIPTION OF THE INVENTION · 2 of 12

The light source part 500 includes a light guide plate (“LGP”) 501 and a plurality of light-emitting modules 502 , 503 , 504 and 505 . Each of the light-emitting modules 502 , 503 , 504 and 505 includes a plurality of light-emitting diodes (“LEDs”). In one embodiment, for example, a first light-emitting module 502 is disposed at a first side of the LGP 501 , and a second light-emitting module 503 is disposed at a second side of the LGP 501 , which faces the first light-emitting module 502 . A third light-emitting module 504 is disposed at a third side of the LGP 501 , which is adjacent to the first light-emitting module 502 , and a fourth light-emitting module 505 is disposed at a fourth side of the LGP 501 , which faces the third light-emitting module 504 .

Moreover, the exemplary embodiment of the display apparatus may include light source parts shown in FIGS. 2A to 2E .

A light source part 510 shown in FIG. 2A includes a plurality of light sources. In one exemplary embodiment, the light source may be an LED. The light source part 510 is disposed below the display panel 200 . In the present exemplary embodiment, the light source is an LED, but in one alternative exemplary embodiment, the light source may be a fluorescent lamp.

A light source part 520 shown in FIG. 2B includes an LGP 521 disposed below the display panel 200 and a light-emitting module 522 disposed at one of edges of a short side of the LGP 521 . The light-emitting module 522 may include a light source. The light source includes an LED. In the present exemplary embodiment, the light-emitting module 522 including an LED is disposed at an edge of a short side of the LGP 521 , but in one alternative exemplary embodiment, a fluorescent lamp instead of the light-emitting module 522 may be disposed at an edge of a short side of the LGP 521 .

A light source part 530 of FIG. 2C includes a LGP 531 disposed below the display panel 200 , a first light-emitting module 532 disposed at an edge of a first short side of the LGP 531 and a second light-emitting module 533 disposed at an edge of a second short side of the LGP 531 . Each of the first and second light-emitting modules 532 and 533 includes a light source. The light source may include an LED. In the present exemplary embodiment, the first and second light-emitting modules 532 and 533 are disposed at two short sides of the LGP 531 , but in one alternative exemplary embodiment, a fluorescent lamp instead of the first and second light-emitting modules 532 and 533 may be disposed at two short sides of the LGP 531 .

A light source part 540 of FIG. 2D includes an LGP 541 disposed below the display panel 200 and a light-emitting module 542 disposed at one of edges of a long side of the LGP 521 . The light-emitting module 542 includes a light source. The light source may include an LED. In the present exemplary embodiment, the light-emitting module 542 including an LED is disposed at an edge of a long side of the LGP 541 , but in one alternative exemplary embodiment, a fluorescent lamp instead of the light-emitting module 542 may be disposed at an edge of a long side of the LGP 541 .

A light source part 550 of FIG. 2E includes an LGP 551 disposed below the display panel 200 , a first light-emitting module 552 disposed at an edge of a first long side of the LGP 551 and a second light-emitting module 553 disposed at an edge of a second long side of the LGP 551 . Each of the first and second light-emitting modules 552 and 553 includes a light source. The light source may include an LED. In the present exemplary embodiment, the first and second light-emitting modules 552 and 553 are disposed at two long sides of the LGP 551 , but in one alternative exemplary embodiment, a fluorescent lamp instead of the first and second light-emitting modules 552 and 553 may be disposed at two long sides of the LGP 551 .

Referring back to FIG. 1 , the light source driving part 600 generates a light source driving signal which turns on or turns off the light source part 500 in accordance with a control of the control part 130 . In one exemplary embodiment, for example, the light source driving part 600 turns on the light source part 500 to provide the display panel 200 with lights in an interval in which the left-eye image or the right-eye image is displayed on the display panel 200 . The light source driving part 600 turns off the light source part 500 to unprovide the display panel with lights in which the left-eye image and the right-eye image are displayed on the display panel 200 . Thus, the light source part 500 is turned off in an interval in which the left-eye image and the right-eye image are combined to be displayed on the display panel 200 , so that a crosstalk between the left-eye image and the right-eye image is not viewed by a viewer.

The eyeglasses part 700 includes a left-eye shutter 710 and a right-eye shutter 730 , and selectively opens and closes the left-eye shutter 710 and the right-eye shutter 730 in synchronization with an image displayed on the display panel 200 . In one exemplary embodiment, the left-eye shutter 710 and the right-eye shutter 730 may be a liquid crystal shutter. In one exemplary embodiment, for one example, the eyeglasses part 700 opens the left-eye shutter 710 and closes the right-eye shutter 730 during an interval in which the left-eye image is displayed on the display panel 200 . In one exemplary embodiment, the eyeglasses part 700 opens the right-eye shutter 730 and closes the left-eye shutter 710 during an interval in which the right-eye image is displayed on the display panel 200 .

FIG. 3 is a block diagram illustrating an exemplary embodiment of a data correcting part 150 of FIG. 1 . FIG. 4 is a schematic diagram explaining a driving method of the exemplary embodiment of a data correcting part 150 of FIG. 3 . FIG. 5 is a schematic diagram explaining a look up table of the exemplary embodiment of the data correcting part 150 of FIG. 1 .

Referring to FIGS. 1 , 3 , 4 and 5 , the data correcting part 150 includes a frame detecting part 151 , a frame memory 153 and a correcting part 155 .

›DETAILED DESCRIPTION OF THE INVENTION · 3 of 12

The frame detecting part 151 detects an n-th image of k images generated in the frame generating control part 120 in accordance with a control of the control part 130 . In one embodiment, for example, the frame detecting part 151 detects the third left-eye image L 3 that is a third image set in the first, second, third and fourth left-eye images L 1 , L 2 , L 3 and L 4 . Moreover, the frame detecting part 151 detects a third right-eye image R 3 of four images R 1 , R 2 , R 3 and R 4 for a right eye.

The frame memory 153 stores the n-th image detected in the frame detecting part 151 . That is, the n-th image stored in the frame memory 153 is provided to the correcting part 155 as a reference data of a previous frame.

The correcting part 155 may include a plurality of look up tables (i.e., LUT 1 , LUT 2 , LUTk). The look up tables store correcting data mapped in accordance with a reference data of a previous frame PF and gradation data of a current frame CF. The correcting part 155 outputs correcting data of k images using the look up tables LUT 1 , LUT 2 , LUTk. The correcting part 155 may correct k images using k look up tables.

Hereinafter, a driving method of the data correcting part 150 will be described below.

In one exemplary embodiment, when a third image of four images is determined as a reference data of a previous frame, for example, it will be explained that the data correcting part 150 corrects each of first, second, third and fourth left-eye images received for an N-th interval N including first, second, third and fourth sub-frames F 1 , F 2 , F 3 and F 4 . In the present exemplary embodiment, a period of the interval may be about 8 ms, and a period of a sub-frame may be about 2 ms, for example.

When a gradation data G L1 of the first left-eye image L 1 is received, the correcting part 155 uses a first look up table LUT 1 to output a gradation data G LUT1 , which is mapped by a gradation data G L1 of the first left-eye image L 1 and a reference data of a previous frame stored in the frame memory 153 , that is a gradation data G R3 of the third right-eye image R 3 received in an (N−1)-th interval, as a correcting data GC L1 of the first left-eye image L 1 .

Then, when a gradation data G L2 of the second left-eye image L 2 is received, the correcting part 155 uses a second look up table LUT 2 to output a gradation data G LUT2 , which is mapped by a gradation data G L2 of the second left-eye image L 2 and a gradation data G R3 of the third right-eye image R 3 , as a correcting data GC L2 of the second left-eye image L 2 .

Then, when a gradation data G L3 of the third left-eye image L 3 is received, the frame detecting part 151 determines a gradation data G L3 of the third left-eye image L 3 as a reference data of a previous frame, and stores the gradation data G L3 of the third left-eye image L 3 to the frame memory 153 . The correcting part 155 uses a third look up table LUT 3 to output a gradation data G LUT3 , which is mapped by a gradation data G L3 of the third left-eye image L 3 and a gradation data G R3 of the third right-eye image R 3 , as a correcting data GC L3 of the third left-eye image L 3 .

Then, when a gradation data G L4 of the fourth left-eye image L 4 is received, the correcting part 155 uses a fourth look up table LUT 4 to output a gradation data G LUT4 , which is mapped by a gradation data G L4 of the fourth left-eye image L 4 and a gradation data G R3 of the third right-eye image R 3 , as a correcting data GC L4 of the fourth left-eye image L 4 .

Accordingly, a corrected data that is overdriven or a corrected data that is underdriven is repeatedly applied to liquid crystal for k times, so that a luminance level may be substantially enhanced. Therefore, a display quality of a stereoscopic image may be substantially enhanced.

FIG. 6 is a schematic diagram explaining a driving method of the exemplary embodiment of a data correcting part 150 of FIG. 3 .

In one exemplary embodiment, referring to FIGS. 1 and 6 , the display panel 200 may have a resolution of 1920×1080, for example, but is not limited thereto. The panel driving part 300 controls the first to fourth left-eye images L 11 , L 12 , L 13 and L 14 and the first to fourth right-eye images R 11 , R 12 , R 13 and R 14 of about 480 Hz that are corrected in the data correcting part 150 to be displayed on the display panel 200 . In the present exemplary embodiment, the first to fourth left-eye images L 11 , L 12 , L 13 and L 14 may be a white image and the first to fourth right-eye images R 11 , R 12 , R 13 and R 14 may be a black image, for example, but are not limited thereto. In one exemplary embodiment, a sub-interval in which the panel driving part 300 displays a frame image on the display panel 200 may be about 2 ms, and a main interval in which the panel driving part 300 displays stereoscopic images L 11 , L 12 , L 13 , L 14 , R 11 , R 12 , R 13 and R 14 on the display panel 200 may be about 16 ms, for example.

The panel driving part 300 sequentially provides a first horizontal line 1st LINE to a last horizontal line 1080th LINE of the display panel 200 with image data, during one sub-interval, in a progressive scan method.

The panel driving part 300 provides the display panel 200 with a data voltage of the first left-eye image L 11 in a first sub-interval S 1 , provides the display panel 200 with a data voltage of the second left-eye image L 12 in a second sub-interval S 2 , and provides the display panel 200 with a data voltage of the third left-eye image L 13 in a third sub-interval S 3 . Moreover, the panel driving part 300 provides the display panel 200 with a data voltage of the fourth left-eye image L 14 in a fourth sub-interval S 4 , provides the display panel 200 with a data voltage of the first right-eye image R 11 in a fifth sub-interval S 5 , and provides the display panel 200 with a data voltage of the second right-eye image R 12 in a sixth sub-interval S 6 . Moreover, the panel driving part 300 provides the display panel 200 with a data voltage of the third right-eye image R 13 in a seventh sub-interval S 7 , and provides the display panel 200 with a data voltage of the fourth right-eye image R 14 in an eighth sub-interval S 8 . In this case, the panel driving part 300 may output a high data voltage HV in correspondence with the first, second, third and fourth left-eye images L 11 , L 12 , L 13 and L 14 having a white gradation data, and may output a low data voltage LV in correspondence with the first, second, third and fourth right-eye images R 11 , R 12 , R 13 and R 14 having a black gradation data.

›DETAILED DESCRIPTION OF THE INVENTION · 4 of 12

During a predetermined sub-interval, a left-eye image L and a right-eye image R are displayed on the display panel 200 in accordance with the progressive scan method. In one embodiment, for example, during an initial of a fifth sub-interval S 5 , an upper area 210 of the display panel 200 displays the first right-eye image R 11 , and intermediate and lower areas 220 and 230 display a fourth left-eye image L 14 of a previous frame. During a middle of the fifth sub-interval S 5 , upper and intermediate areas 210 and 220 display the first right-eye image R 11 , and a lower area 230 displays the fourth left-eye image L 14 . During a latter of the fifth sub-interval S 5 , a whole area of the display panel 200 displays the first right-eye image R 11 . Thus, during the fifth sub-interval S 5 , the fourth left-eye image L 14 and the first right-eye image R 11 are displayed on the display panel 200 .

A driving interval of the display panel 200 includes a first interval P 11 in which the left-eye image or the right-eye image is displayed thereon and a second interval P 12 in which the left-eye image L and the right-eye image R are combined to be displayed thereon.

In considering a response speed of liquid crystals included in the display panel 200 , the first interval P 11 may be substantially shorter than second, third and fourth sub-intervals S 2 , S 3 and S 4 (or sixth, seventh and eighth sub-intervals S 6 , S 7 and S 8 ) in which data of the left-eye image L or the right-eye image R is provided to the display panel 200 , and the second interval P 12 may be substantially longer than one sub-interval. The first interval P 11 and the second interval P 12 may be substantially different from each other in accordance with the response speed of liquid crystals.

The light source driving part 600 generates a light source driving signal which controls the light source part 500 providing the display panel 200 with lights, in synchronization with an image displayed on the display panel 200 . The light source driving signal LDS turns on the light source part 500 during the first interval P 11 in which the left-eye image L or the right-eye image R is displayed on the display panel 200 , and turns off the light source part 500 during the second interval P 12 in which the left-eye image L and the right-eye image R are displayed on the display panel 200 . As a result, lights are provided to the display panel 200 during the first interval P 11 , and lights are not provided to the display panel 200 during the second interval P 12 .

FIG. 7 is a schematic diagram explaining another exemplary embodiment of a frame control part.

Referring to FIGS. 1 and 7 , the present exemplary embodiment of the display apparatus is substantially the same as the display apparatus of FIG. 1 except for at least a frame control part 120 A. Thus, any repetitive detailed explanation may hereinafter be omitted.

The frame control part 120 A receives the left-eye image L and the right-eye image R. The frame control part 120 A outputs k images for a left eye using the left-eye image L, and outputs k images for a right eye using the right-eye image R. In this case, i images of k images for the left eye and k images for the right eye may be changed into black images. Here, ‘k’ is a natural number greater than 2, and ‘i’ is a natural number greater than 0 and smaller than ‘k’. When ‘k’ is 3 and ‘i’ is 1, the frame control part 120 A repeats displaying the left-eye image L three times to generate three left-eye images and a black image, and repeats displaying the right-eye image R three times to generate three right-eye images and a black image.

The black image B is inserted between the left-eye image L and the right-eye image R, so that a time capable of correcting a slow falling response speed of liquid crystal may be secured. Thus, a duty ratio of a light source driving signal which turns on a light source part 600 is altered, so that luminance efficiency may be substantially enhanced.

FIG. 8 is a schematic diagram explaining a driving method of a display apparatus including a frame control part of FIG. 7 .

Referring to FIGS. 1 , 7 and 8 , the display panel 200 may have a resolution of 1920×1080, for example, but is not limited thereto. The panel driving part 300 controls a first left-eye image L 11 , a second left-eye image L 2 , a third left-eye image L 13 , a first black image B 11 , a first right-eye image R 11 , a second right-eye image R 12 , a third right-eye image R 13 and a second black image B 12 of about 480 Hz that are corrected in the data correcting part 150 to be displayed on the display panel 200 . In one exemplary embodiment, a sub-interval in which the panel driving part 300 displays a frame image on the display panel 200 may be about 2 ms, and a main interval in which the panel driving part 300 displays stereoscopic images L 11 , L 12 , L 13 , B 11 , R 11 , R 12 , R 13 and B 12 on the display panel 200 may be about 16 ms, for example. The panel driving part 300 sequentially provides a first horizontal line 1st LINE to a last horizontal line 1080th LINE of the display panel 200 with image data, during one sub-interval, in a progressive scan method. The panel driving part 300 provides the display panel 200 with a data voltage corresponding to the first left-eye image L 11 in a first sub-interval S 1 , provides the display panel 200 with a data voltage corresponding to the second left-eye image L 12 in a second sub-interval S 2 , and provides the display panel 200 with a data voltage corresponding to the third left-eye image L 13 in a third sub-interval S 3 . Moreover, the panel driving part 300 provides the display panel 200 with a data voltage corresponding to the first black image B 11 in a fourth sub-interval S 4 , provides the display panel 200 with a data voltage corresponding to the first right-eye image R 11 in a fifth sub-interval S 5 , and provides the display panel 200 with a data voltage corresponding to the second right-eye image R 12 in a sixth sub-interval S 6 . Moreover, the panel driving part 300 provides the display panel 200 with a data voltage corresponding to the third right-eye image R 13 in a seventh sub-interval S 7 , and provides the display panel 200 with a data voltage corresponding to the second black image B 12 in an eighth sub-interval S 8 .

›DETAILED DESCRIPTION OF THE INVENTION · 5 of 12

During the fifth sub-interval S 5 , the data of the first right-eye image R 11 are sequentially provided to the first horizontal line 1st LINE to the last horizontal line 1080th LINE of the display panel 200 . During an initial of the fifth sub-interval S 5 , an upper area 210 of the display panel 200 displays images varied from the first black image B 11 of a previous frame to the first right-eye image R 11 , and middle and lower areas 220 and 230 of the display panel 200 displays the first image B 11 of a previous frame. During an intermediate of the fifth sub-interval S 5 , the upper area 210 of the display panel 200 displays the first right-eye image R 11 , the middle area 220 of the display panel 200 displays images varied from the first black image B 11 to the first right-eye image R 11 , and the lower area 230 of the display panel 200 displays the first black image B 11 . A latter of the fifth sub-interval S 5 , the upper and middle areas 210 and 220 display the first right-eye image R 11 , and the lower area 230 of the display panel 200 displays images varied from the first black image B 11 to the first right-eye image R 11 .

The black image B 11 is inserted between the third left-eye image L 13 and the first right-eye image R 11 , so that the display panel 200 displaying the third left-eye image L 13 is reset into a black status. Therefore, a falling time of liquid crystal molecules is secured in one frame when a data value of the first right-eye image R 11 is black which is the worst condition of crosstalk, so that a first interval P 21 displaying a left-eye image L or a right-eye image R on the display panel 200 is substantially increased. In contrast, the second interval P 22 displaying an over image is substantially decreased, which is varied from the third left-eye image L 13 to the first right-eye image R 11 is displayed on the display panel 200 due to slow falling response characteristics of liquid crystal molecules. The first interval P 21 and the second interval P 22 may be substantially differently set in accordance with a response speed of liquid crystal molecules.

According to the present exemplary embodiment, the first interval P 21 is greater than the first interval P 11 shown in FIG. 6 , and the second interval P 22 is smaller than the second interval P 12 shown in FIG. 6 .

The light source driving part 600 generates a light source driving signal LDS driving the light source part 500 in synchronization with a driving interval of the display panel 200 . The light driving signal LDS turns on the light source part 500 while the first interval P 21 in which the left-eye image L or the right-eye image R is displayed on the display panel 200 , and turns off the light source part 500 while the second interval P 22 in which the left-eye image L and the right-eye image R are displayed on the display panel 200 . Accordingly, a duty ratio of the light source driving signal is greater than a duty ratio of the light source driving signal shown in FIG. 6 , and thus luminance efficiency may be substantially enhanced.

Accordingly, the light source part 500 provides the display panel 200 with lights in an interval in which the left-eye image L and the right-eye image R are displayed on the display panel 200 , so that a crosstalk between the left-eye image L and the right-eye image R is not viewed by a viewer. Moreover, the black image B is inserted between the left-eye image L and the right-eye image R, so that luminance efficiency may be substantially enhanced.

FIG. 9 is a block diagram illustrating another exemplary embodiment of a display apparatus. FIGS. 10A and 10B are block diagrams in accordance with various exemplary embodiments of a light source part of FIG. 9 .

Referring to FIG. 9 , the display apparatus includes stereoscopic image processing part 110 , a frame control part 120 , a control part 130 , a data correcting part 150 , a display panel 200 , a panel driving part 300 , a light source part 500 A, a light source driving part 600 A and an eyeglasses part 700

The display apparatus according to the present exemplary embodiment is substantially the same as the display apparatus of FIG. 1 except for at least a light source part 500 A and a light source driving part 600 A. Thus, identical reference numerals are used in FIG. 9 to refer to components that are the same or similar to those shown in FIG. 1 , and thus, a detailed description thereof will be omitted.

The light source part 500 A includes a plurality of LEDs to be disposed below the display panel 200 . The LEDs may be defined as a plurality of light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm that are arranged in the scan direction in which a frame image is displayed on the display panel 200 . In this case, m is a natural number. In one exemplary embodiment, the light source part 500 A may include a plurality of fluorescent lamps. The fluorescent lamps may be disposed in the scan direction in correspondence with the light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm.

›DETAILED DESCRIPTION OF THE INVENTION · 6 of 12

Moreover, the present exemplary embodiment of the display apparatus may include light source parts shown in FIGS. 10A and 10B .

In one exemplary embodiment, a light source part 510 A shown in FIG. 10A includes an LGP 511 a and a light-emitting module 512 a disposed at a short side edge of the LGP 511 a . The light-emitting module 512 a has a plurality of LEDs mounted thereon. The light-emitting module 512 a may be defined as a plurality of light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm that are arranged in the scan direction. In this case, m is a natural number.

In one exemplary embodiment, a light source part 520 A shown in FIG. 10B includes an LGP 521 a , a first light-emitting module 522 a disposed at a first short side edge of the LGP 521 a and a second light-emitting module 523 a disposed at a second short side edge of the LGP 521 a . The first light-emitting module 522 a has a plurality of LEDs mounted thereon. The first light-emitting module 522 a may be defined as m light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm that are arranged in the scan direction. The second light-emitting module 523 a has a plurality of LEDs mounted thereon. The second light-emitting module 523 a may be defined as m light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm that face m light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm of the first light-emitting module 522 a . Each of the m light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm of the second light-emitting module 523 a is driven in synchronization with the m light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm of the first light-emitting module 522 a . In one embodiment, for example, a first light-emitting block LB 1 of the first light-emitting module 522 a and a first light-emitting block LB 1 of the second light-emitting module 523 a are driven by light source driving signals that are synchronization with each other.

The light source driving part 600 A generates m light source driving signals which drive the light-emitting blocks LB 1 , LB 2 , B 3 , . . . , LBm. In one embodiment, for example, m display blocks DB 1 , DB 2 , DB 3 , . . . , DBm in the display panel 200 may be defined in correspondence with the light-emitting blocks LB 1 , LB 2 , LB 3 , . . . , LBm. The light source driving part 600 A generates a first light source driving signal. In this case, the first light source driving signal turns on a first light-emitting block LB 1 in a first interval in which the left-eye image L or the right-eye image R is displayed on a first display block DB 1 corresponding to a first light-emitting block LB 1 , and turns off the first light-emitting block LB 1 in a second interval in which a combined image of the left-eye image L and the right-eye image R is displayed on the first display block DB 1 . In a similar method, the light source driving part 600 A generates m light source driving signals.

FIG. 11 is a schematic diagram explaining an exemplary embodiment of a driving method of the display apparatus of FIG. 9 .

In one exemplary embodiment, referring to FIGS. 9 and 11 , the display panel 200 may have a resolution of 1920×1080, for example, but is not limited thereto. The panel driving part 300 controls the first to fourth left-eye images L 11 , L 12 , L 13 and L 14 and the first to fourth right-eye images R 11 , R 12 , R 13 and R 14 of about 480 Hz that are corrected in the data correcting part 150 to be displayed on the display panel 200 . In one exemplary embodiment, a sub-interval in which the panel driving part 300 displays a frame image on the display panel 200 may be about 2 ms, and a main interval in which the panel driving part 300 displays stereoscopic images L 11 , L 12 , L 13 , L 14 , R 11 , R 12 , R 13 and R 14 on the display panel 200 may be about 16 ms, for example. The panel driving part 300 sequentially provides a first horizontal line 1st LINE to a last horizontal line 1080th LINE of the display panel 200 with image data, during one sub-interval, in a progressive scan method.

Data of right-eye images R 11 , R 12 , R 13 and R 14 are provided to a first horizontal line 1st LINE included in a first display block DB 1 of the display panel 200 during fifth to eighth sub-intervals S 5 , S 6 , S 7 and S 8 . A driving interval of the first display block DB 1 has a first interval P 31 in which a left-eye image L or a right-eye image R is displayed and a second interval P 32 in which a left-eye image L and a right-eye image R are displayed. According to a response speed of liquid crystal, the first horizontal line 1st LINE displays a combined image in which the fourth left-eye image L 14 and the first right-eye image R 11 are combined during the second interval P 32 from a fifth sub-interval S 5 to a predetermined point. The first horizontal line 1st LINE displays the right-eye images R 11 , R 12 , R 13 and R 14 during the first interval P 31 from the predetermined point to the eighth sub-interval S 8 . The first interval P 31 and the second interval P 32 may be substantially different from each other in accordance with the response speed of liquid crystals.

The light source driving part 600 A generates a first light source driving signal LDS 1 which is provided to a first light-emitting block LB 1 corresponding to the first display block DB 1 , in synchronization with a driving interval of the first display block DB 1 . That is, the first light source driving signal LDS 1 turns on the first light-emitting block LB 1 during a first interval P 31 in which the first display block DB 1 displays the right-eye images R 11 , R 12 , R 13 and R 14 , and turns off the first light-emitting block LB 1 during a second interval P 32 in which the first display block DB 1 displays the combined image.

In a similar manner, the light source driving part 600 A generates second to eighth light source driving signals LDS 2 , LDS 3 , . . . , LDS 8 in synchronization with an image displayed on the second to eighth display blocks DB 2 , DB 3 , . . . , DB 8 to control the second to eighth light-emitting blocks LB 2 , LB 3 , . . . , LB 8 .

›DETAILED DESCRIPTION OF THE INVENTION · 7 of 12

In the present exemplary embodiment, the light source driving part 600 A generates the light source driving signal which controls the light-emitting block in synchronization with an image displayed on the first horizontal lines of each display block. In one alternative exemplary embodiment, the light source driving part 600 A may generate the light source driving signal in synchronization with an image displayed on a middle horizontal line or the last horizontal line. As a result, the light source driving part 600 A may generate the light source driving signal which controls the light-emitting block in synchronization with an image displayed on the display block.

The eyeglasses part 700 opens and closes the left-eye shutter 710 and the right-eye shutter 730 based on a left-eye shutter signal LSS and a right-eye shutter signal RSS that is synchronized with a driving of the display panel 200 . The eyeglasses part 700 opens the left-eye shutter 710 in response to the left-eye shutter signal LSS during an interval from a portion of sub-intervals S 1 , S 2 and S 3 corresponding to second intervals P 32 in which the combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 to a portion of sub-intervals S 5 , S 6 and S 7 corresponding to second intervals P 32 in which a following combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 . The eyeglasses part 700 closes the left-eye shutter 710 in response to the left-eye shutter signal LSS during an interval from the portion of sub-intervals S 5 , S 6 and S 7 corresponding to the second intervals P 32 in which the combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 to a portion of sub-intervals S 9 , S 10 and S 11 corresponding to the second intervals P 32 in which a following combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 . The eyeglasses part 700 closes the right-eye shutter 730 in response to the right-eye shutter signal RSS during an interval from the portion of sub-intervals S 1 , S 2 and S 3 corresponding to the second intervals P 32 in which the combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 to the portion of sub-intervals S 5 , S 6 and S 7 corresponding to second intervals P 32 in which a following combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 . The eyeglasses part 700 opens the right-eye shutter 730 in response to the right-eye shutter signal RSS during an interval from the portion of sub-intervals S 5 , S 6 and S 7 corresponding to the second intervals P 32 in which the combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 to the portion of sub-intervals S 9 , S 10 and S 11 corresponding to the second intervals P 32 in which a following combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 .

Accordingly, lights are provided to the display panel 200 in an interval in which the left-eye image L or the right-eye image R is displayed on the display panel 200 , so that a crosstalk between the left-eye image L and the right-eye image R is not viewed by a viewer.

FIG. 12 is a schematic diagram explaining another exemplary embodiment of a driving method of a display apparatus.

Referring to FIG. 12 , the present exemplary embodiment of the display apparatus is substantially the same as the display apparatus of FIG. 9 except for at least a frame control part, and a frame control part according to the present exemplary embodiment is substantially the same as the frame control part 120 A of FIG. 7 . Thus, any repetitive detailed explanation may hereinafter be omitted.

Hereinafter, the present exemplary embodiment a driving method of a display apparatus will be described below with reference to FIGS. 9 and 12 .

In the present exemplary embodiment, the display panel 200 may have a resolution of 1920×1080, for example, but is not limited thereto. The panel driving part 300 controls a first left-eye image L 11 , a second left-eye image L 2 , a third left-eye image L 13 , a first black image B 11 , a first right-eye image R 11 , a second right-eye image R 12 , a third right-eye image R 13 and a second black image B 12 of about 480 Hz that are corrected in the data correcting part 150 to be displayed on the display panel 200 . In one exemplary embodiment, a sub-interval in which the panel driving part 300 displays a frame image on the display panel 200 may be about 2 ms, and a main interval in which the panel driving part 300 displays stereoscopic images L 11 , L 12 , L 13 , B 11 , R 11 , R 12 , R 13 and B 12 on the display panel 200 may be about 16 ms, for example.

The first horizontal line 1st LINE is varied from a third left-eye image L 13 of a previous frame to the first black image B 11 during the fourth sub-interval S 4 . The first horizontal line 1st LINE is varied to the first right-eye image R 11 during a second interval P 42 from a fifth sub-interval S 5 in which a data of the first right-eye image R 11 is provided to a predetermined point. The first horizontal line 1st LINE displays the right-eye images R 11 , R 12 and R 13 during a first interval P 41 from the predetermined point to the eighth sub-interval S 8 .

The second interval P 42 is an interval which is varied from the first black image B 11 to the first right-eye image R 11 . The second interval P 42 is substantially shorter than a second interval P 32 shown in FIG. 11 , that is, an interval which is varied from a fourth left-eye image L 14 to a first right-eye image R 11 . As a result, the first interval P 41 which displays the first right-eye image R 11 on the first horizontal line 1st LINE is substantially long. According to the present exemplary embodiment, the first interval P 41 is substantially longer than the first interval P 31 shown in FIG. 11 , and the second interval P 42 is substantially shorter than the second interval P 32 shown in FIG. 11 . The first interval P 41 and the second interval P 42 may be substantially different from each other in accordance with the response speed of liquid crystals.

›DETAILED DESCRIPTION OF THE INVENTION · 8 of 12

The light source driving part 600 A generates a first light source driving signal LDS 1 which is provided to a first light-emitting block LB 1 corresponding to the first display block DB 1 in synchronization with a driving interval of the first display block DB 1 . That is, the first light source driving signal LDS 1 turns on the first light-emitting block LB 1 during a first interval P 41 in which the first display block DB 1 displays the left-eye images L 12 and R 13 , and turns off the first light-emitting block LB 1 during a second interval P 42 in which the first display block DB 1 displays the combined image.

Accordingly, in a similar method, the light source driving part 600 A generates second to eighth light source driving signals LDS 2 , LDS 3 , . . . , LDS 8 in synchronization with an image displayed on the second to eighth display blocks DB 2 , DB 3 , . . . , DB 8 to control the second to eighth light-emitting blocks LB 2 , LB 3 , . . . , LB 8 .

In the present exemplary embodiment, the light source driving part 600 A generates the light source driving signal which controls the light-emitting block in synchronization with an image displayed on the first horizontal lines of each display block, but in one alternative exemplary embodiment, the light source driving part 600 A may generate the light source driving signal in synchronization with an image displayed on a middle horizontal line or the last horizontal line. As a result, the light source driving part 600 A may generate the light source driving signal which controls the light-emitting block in synchronization with an image displayed on the display block.

The eyeglasses part 700 opens and closes the left-eye shutter 710 and the right-eye shutter 730 based on a left-eye shutter signal LSS and a right-eye shutter signal RSS that are synchronized to a driving of the display panel 200 . The eyeglasses part 700 opens the left-eye shutter 710 in response to the left-eye shutter signal LSS during an interval from a portion of sub-intervals S 1 , S 2 and S 3 corresponding to second intervals P 42 in which the combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 to a portion of sub-intervals S 5 , S 6 and S 7 corresponding to second intervals P 42 in which a following combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 . The eyeglasses part 700 closes the left-eye shutter 710 in response to the left-eye shutter signal LSS during an interval from the portion of sub-intervals S 5 , S 6 and S 7 corresponding to the second intervals P 42 in which the combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 to a portion of sub-intervals S 9 , S 10 and S 11 corresponding to the second intervals P 42 in which a following combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 . The eyeglasses part 700 closes the right-eye shutter 730 in response to the right-eye shutter signal RSS during an interval from a portion of sub-intervals S 1 , S 2 and S 3 corresponding to the second intervals P 32 in which the combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 to a portion of sub-intervals S 5 , S 6 and S 7 corresponding to second intervals P 42 in which a following combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 . The eyeglasses part 700 opens the right-eye shutter 730 in response to the right-eye shutter signal RSS during an interval from a portion of sub-intervals S 5 , S 6 and S 7 corresponding to the second intervals P 42 in which the combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 to a portion of sub-intervals S 9 , S 10 and S 11 corresponding to the second intervals P 42 in which a following combined image is displayed on the first to eighth display blocks DB 1 , DB 2 , . . . , DB 8 .

The black image is inserted between the left-eye image and the right-eye image, so that a time in which a current right-eye image is displayed may be substantially decreased with respect to a previous left-eye image. Thus, it may substantially increase a duty ratio of a light source driving signal which turns on the light source part 600 A to substantially enhance a luminance efficiency of a display apparatus.

FIG. 13 is a block diagram illustrating another exemplary embodiment of a display apparatus.

Referring to FIG. 13 , the display apparatus includes a stereoscopic image processing part 110 , a frame control part 120 , a control part 130 , a data correcting part 150 , a display panel 200 , a panel driving part 300 , a light source part 500 B, a light source driving part 600 B and an eyeglasses part 700 .

The present exemplary embodiment of the display apparatus is substantially the same as the display apparatus of FIG. 1 except for at least a light source part 500 B and a light source driving part 600 B. Thus, identical reference numerals are used in FIG. 13 to refer to components that are the same or like those shown in FIG. 1 , and thus, a detailed description thereof will be omitted.

The light source part 500 B includes a first light-emitting module 516 , a second light-emitting module 517 and an LGP 521 . The first light-emitting module 516 including a plurality of LEDs mounted thereon may be disposed on a first side of the LGP 521 . The first side of the LGP 521 is substantially perpendicular to a scan direction of an image. The second light-emitting module 517 including a plurality of LEDs mounted thereon may be disposed on a second side facing the first side of the LGP 521 . As a result, the first light-emitting module 516 may be disposed in an upper side of the display panel 200 , and the second light-emitting module 517 may be disposed in a lower side of the display panel 200 .

›DETAILED DESCRIPTION OF THE INVENTION · 9 of 12

In one exemplary embodiment, the light source part 500 B may include a first fluorescent lamp and a second fluorescent lamp. The first fluorescent lamp may be disposed at the first side of the LGP 521 , and the second fluorescent lamp may be disposed at the second side of the LGP 521 .

The light source part 600 B generates a first light source driving signal driving the first light-emitting module 516 and a second light source driving signal driving the second light-emitting module 517 . In one embodiment, for example, the display panel 200 may be defined as a first display block DB 1 and a second display block DB 2 in correspondence with the first and second light-emitting modules 516 and 517 . The light source driving part 600 B generates a first light source driving signal which turns on the first light-emitting module 516 when a left-eye image (or a right-eye image) is displayed on the first display block DB 1 and which turns off the first light-emitting module 516 when the left-eye image and the right-eye image are displayed on the first display block DB 1 . Moreover, the light source driving part 600 B generates a first light source driving signal which turns on the second light-emitting module 517 when a left-eye image (or a right-eye image) is displayed on the second display block DB 2 and which turns off the second light-emitting module 517 when the left-eye image and the right-eye image are displayed on the second display block DB 2 . As a result, the light source part 500 B is driven in accordance with a control of the light source driving part 600 B.

FIG. 14 is a schematic diagram explaining an exemplary embodiment of a driving method of the display apparatus of FIG. 13 .

In one exemplary embodiment, referring to FIGS. 13 and 14 , the display panel 200 may have a resolution of 1920×1080, for example, but is not limited thereto. The panel driving part 300 controls the first to fourth left-eye images L 11 , L 12 , L 13 and L 14 and the first to fourth right-eye images R 11 , R 12 , R 13 and R 14 of about 480 Hz that are corrected in the data correcting part 150 to be displayed on the display panel 200 . In one exemplary embodiment, a sub-interval in which the panel driving part 300 displays a frame image on the display panel 200 may be about 2 ms, and a main interval in which the panel driving part 300 displays stereoscopic images L 11 , L 12 , L 13 , L 14 , R 11 , R 12 , R 13 and R 14 on the display panel 200 may be about 16 ms, for example. The panel driving part 300 sequentially provides a first horizontal line 1st LINE to a last horizontal line 1080th LINE of the display panel 200 with image data, during one sub-interval, in a progressive scan method.

Data of right-eye images R 11 , R 12 , R 13 and R 14 are provided to a first horizontal line 1st LINE included in a first display block DB 1 of the display panel 200 during fifth to eighth sub-intervals S 5 , S 6 , S 7 and S 8 . A driving interval of the first display block DB 1 has a first interval P 51 in which a left-eye image L or a right-eye image R is displayed and a second interval P 52 in which a left-eye image L and a right-eye image R are displayed. According to a response speed of liquid crystal, the first horizontal line 1st LINE displays a combined image in which the fourth left-eye image L 14 and the first right-eye image R 11 are combined during the second interval P 52 from a fifth sub-interval S 5 to a predetermined point. The first horizontal line 1st LINE displays the right-eye images R 11 , R 12 , R 13 and R 14 during the first interval P 51 from the predetermined point to the eighth sub-interval S 8 .

Data of right-eye images R 11 , R 12 , R 13 and R 14 are provided to the last horizontal line 1080th LINE of the second display block DB 2 during a sixth sub-interval S 6 to a ninth sub-intervals S 9 . A driving interval of the second display block DB 2 has a third interval P 53 in which a left-eye image L or a right-eye image R is displayed and a fourth interval P 54 in which a left-eye image L and a right-eye image R are displayed. According to a response speed of liquid crystal, the last horizontal line 1080th LINE is varied from a fourth left-eye image L 14 of a previous frame to the first right-eye image R 11 , during the fourth interval P 54 from the sixth sub-interval S 6 to a predetermined point.

Thus, the last horizontal line 1080th LINE displays a combined image in which the fourth left-eye image L 14 and the first right-eye image R 11 are combined. The last horizontal line 1080th LINE displays the right-eye images R 11 , R 12 , R 13 and R 14 during the third interval P 53 from the predetermined point to the ninth sub-interval S 9 . The first, second, third and fourth intervals P 51 , P 52 , P 53 and P 54 may be substantially different from each other in accordance with the response speed of liquid crystals.

The light source driving part 600 B generates a first light source driving signal LDS 1 and a second light source driving signal LDS 2 that are provided to first and second light-emitting modules 516 and 517 corresponding to the first and second display blocks DB 1 and DB 2 , respectively. The first light source driving signal LDS 1 turns on the first light-emitting module 516 during a first interval P 51 in which the first display block DB 1 displays the first right-eye image R 11 , and turns off the first light-emitting module 516 during a second interval P 52 in which the first display block DB 1 displays the combined image, in synchronization with an image displayed on the first horizontal line 1st LINE of the first display block DB 1 . The second light source driving signal LDS 2 turns on the second light-emitting module 517 during a third interval P 53 in which the second display block DB 2 displays the first right-eye image R 11 , and turns off the second light-emitting module 517 during a fourth interval P 54 in which the second display block DB 2 displays the combined image, in synchronization with an image displayed on the last horizontal line 1080th LINE of the second display block DB 2 .

›DETAILED DESCRIPTION OF THE INVENTION · 10 of 12

In the present exemplary embodiment, a first light source driving signal which controls the first light-emitting module 516 is generated in synchronization with an image displayed on a first horizontal line of the first display block DB 1 adjacent to the first light-emitting module 516 , but in one alternative exemplary embodiment, the first light source driving signal may be generated in synchronization with an image displayed on one of horizontal lines of the first display block DB 1 . Moreover, in the present exemplary embodiment, a second light source driving signal which controls the second light-emitting module 517 is generated in synchronization with an image displayed on the last horizontal line of the second display block DB 2 adjacent to the second light-emitting module 517 , but in one alternative exemplary embodiment, the second light source driving signal may be generated in synchronization with an image displayed on one of horizontal lines of the second display block DB 2 . As a result, the light source driving part 600 B may generate the light source driving signal which controls the light-emitting block in synchronization with an image displayed on the display block.

The eyeglasses part 700 opens and closes the left-eye shutter 710 and the right-eye shutter 730 based on a left-eye shutter signal LSS and a right-eye shutter signal RSS that are synchronized to a driving of the display panel 200 . The eyeglasses part 700 opens the left-eye shutter 710 in response to the left-eye shutter signal LSS during an interval from a portion of sub-intervals S 1 , S 2 and S 3 corresponding to second intervals P 52 and P 54 in which the combined image is displayed on the first and second display blocks DB 1 and DB 2 to a portion of sub-intervals S 5 , S 6 and S 7 corresponding to second intervals P 52 and P 54 in which a following combined image is displayed on the first and second display blocks DB 1 and DB 2 . The eyeglasses part 700 closes the left-eye shutter 710 in response to the left-eye shutter signal LSS during an interval from the portion of sub-intervals S 5 , S 6 and S 7 corresponding to the second intervals P 52 and P 54 in which the combined image is displayed on the first and second display blocks DB 1 and DB 2 to a portion of sub-intervals S 9 , S 10 and S 11 corresponding to the second intervals P 52 and P 54 in which a following combined image is displayed on the first and second display blocks DB 1 and DB 2 . The eyeglasses part 700 closes the right-eye shutter 730 in response to the right-eye shutter signal RSS during an interval from the portion of sub-intervals S 1 , S 2 and S 3 corresponding to the second intervals P 52 and P 54 in which the combined image is displayed on the first and second display blocks DB 1 and DB 2 to the portion of sub-intervals S 5 , S 6 and S 7 corresponding to second intervals P 52 and P 54 in which a following combined image is displayed on the first and second display blocks DB 1 and DB 2 . The eyeglasses part 700 opens the right-eye shutter 730 in response to the right-eye shutter signal RSS during an interval from the portion of sub-intervals S 5 , S 6 and S 7 corresponding to the second intervals P 52 and P 54 in which the combined image is displayed on the first and second display blocks DB 1 and DB 2 to the portion of sub-intervals S 9 , S 10 and S 11 corresponding to the second intervals P 52 and P 54 in which a following combined image is displayed on the first and second display blocks DB 1 and DB 2 .

FIG. 15 is a schematic diagram explaining a driving method of a display apparatus according to another exemplary embodiment of the invention.

Referring to FIG. 15 , the display apparatus according to the present exemplary embodiment is substantially the same as the display apparatus of FIG. 13 except for at least a frame control part, and a frame control part according to the present exemplary embodiment is substantially the same as the frame control part 120 A of FIG. 7 . Thus, any repetitive detailed explanation may hereinafter be omitted.

Hereinafter, the present exemplary embodiment of a driving method of a display apparatus will be described below with reference to FIGS. 13 and 15 .

In the present exemplary embodiment, the display panel 200 may have a resolution of 1920×1080, for example, but is not limited thereto. The panel driving part 300 controls that a first left-eye image L 11 , a second left-eye image L 2 , a third left-eye image L 13 , a first black image B 11 , a first right-eye image R 11 , a second right-eye image R 12 , a third right-eye image R 13 and a second black image B 12 of about 480 Hz that are corrected in the data correcting part 150 are displayed on the display panel 200 . In one exemplary embodiment, a sub-interval in which the panel driving part 300 displays a frame image on the display panel 200 may be about 2 ms, and a main interval in which the panel driving part 300 displays stereoscopic images L 11 , L 12 , L 13 , B 11 , R 11 , R 12 , R 13 and B 12 on the display panel 200 may be about 16 ms, for example. The panel driving part 300 sequentially provides a first horizontal line 1st LINE to a last horizontal line 1080th LINE of the display panel 200 with image data, during one sub-interval, in a progressive scan method.

Data of a first black image B 11 are provided to a first horizontal line 1st LINE included in a first display block DB 1 of the display panel 200 during a fourth sub-interval S 4 . Then, data of right-eye images R 11 , R 12 and R 13 are provided to the first horizontal line 1st LINE during fifth to seventh sub-intervals S 5 , S 6 and S 7 . A driving interval of the first display block DB 1 has a first interval P 61 in which a left-eye image L or a right-eye image R is displayed and a second interval P 62 in which a left-eye image L and a right-eye image R are displayed. The first horizontal line 1st LINE is varied from a third left-eye image L 13 of a previous frame to the first black image B 11 during the fourth sub-interval S 4 . The first horizontal line 1st LINE is varied to the first right-eye image R 11 during a second interval P 62 from a fifth sub-interval S 5 in which a data of the right-eye images R 11 , R 12 and R 13 are provided to a predetermined point. The first horizontal line 1st LINE displays the right-eye images R 11 , R 12 and R 13 during a first interval P 61 from the predetermined point to the eighth sub-interval S 8 .

›DETAILED DESCRIPTION OF THE INVENTION · 11 of 12

The second interval P 62 is an interval which is varied from the first black image B 11 to the first right-eye image R 11 . The second interval P 62 is substantially shorter than a second interval P 52 shown in FIG. 14 , that is, an interval which is varied from a fourth left-eye image L 14 to a first right-eye image R 11 . That is, the first interval P 61 which displays the first right-eye image R 11 on the first horizontal line 1st LINE is substantially long. According to the present exemplary embodiment, the first interval P 61 is substantially longer than the first interval P 51 shown in FIG. 14 , and the second interval P 62 is substantially shorter than the second interval P 52 shown in FIG. 14 .

Data of the first black image B 11 is provided to the last horizontal line 1080th LINE of the second display block DB 2 during a latter portion of a fourth sub-interval S 4 close to a fifth sub-interval S 5 . Then, data of the right-eye images R 11 , R 23 and R 13 are provided to the last horizontal line 1080th LINE during sixth, seventh and eighth sub-intervals S 6 , S 7 and S 8 . A driving interval of the display block DB 2 has a third interval P 63 in which a left-eye image L or a right-eye image R is displayed and a fourth interval P 64 in which the left-eye image L and the right-eye image R are displayed. In the last horizontal line 1080th LINE, during the fifth sub-interval S 5 , a third left-eye image L 13 of a previous frame is varied to the first black image B 11 . During the fourth interval P 64 from a sixth sub-interval S 6 in which data of the first right-eye image R 11 is provided to a predetermined point, an image varied to the first right-eye image R 11 is displayed on the last horizontal line 1080th LINE. In addition, during the third interval P 63 from the predetermined point to the ninth sub-interval S 9 , the right-eye images R 11 , R 12 and R 13 are displayed on the last horizontal line 1080th LINE.

The fourth interval P 64 is an interval which is varied from the first black image B 11 to the first right-eye image R 11 . The fourth interval P 64 is substantially shorter than a fourth interval P 54 shown in FIG. 14 , that is, an interval which is varied from a fourth left-eye image L 14 to a first right-eye image R 11 . As a result, the fourth interval P 64 which displays the first right-eye image R 11 on the last horizontal line 1080th LINE is substantially long. According to the present exemplary embodiment, the third interval P 63 is substantially longer than the third interval P 53 shown in FIG. 14 , and the fourth interval P 64 is substantially shorter than the fourth interval P 54 shown in FIG. 14 . The first, second, third and fourth intervals P 61 , P 62 , P 63 and P 64 may be substantially different from each other in accordance with the response speed of liquid crystals.

The light source driving part 600 B generates a first light source driving signal LDS 1 and a second light source driving signal LDS 2 that are provided to first and second light-emitting modules 516 and 517 corresponding to the first and second display blocks DB 1 and DB 2 , respectively. The first light source driving signal LDS 1 turns on the first light-emitting module 516 during a first interval P 61 in which the first display block DB 1 displays the first right-eye image R 11 , and turns off the first light-emitting module 516 during a second interval P 62 in which the first display block DB 1 displays the combined image, in synchronization with an image displayed on the first horizontal line 1st LINE of the first display block DB 1 . The second light source driving signal LDS 2 turns on the second light-emitting module 517 during a third interval P 63 in which the second display block DB 2 displays the first right-eye image R 11 , and turns off the second light-emitting module 517 during a fourth interval P 64 in which the second display block DB 2 displays the combined image, in synchronization with an image displayed on the last horizontal line 1080th LINE of the second display block DB 2 .

In the present exemplary embodiment, a first light source driving signal which controls the first light-emitting module is generated in synchronization with an image displayed on a first horizontal line of the first display block, but in one alternative exemplary embodiment, the first light source driving signal may be generated in synchronization with an image displayed on one of horizontal lines of the first display block. Moreover, in the present exemplary embodiment, a second light source driving signal which controls the second light-emitting module is generated in synchronization with an image displayed on the last horizontal line of the second display block, but in one alternative exemplary embodiment, the second light source driving signal may be generated in synchronization with an image displayed on one of horizontal lines of the second display block. As a result, the light source driving part 600 B may generate the light source driving signal which controls the light-emitting block in synchronization with an image displayed on the display block.

The eyeglasses part 700 opens and closes the left-eye shutter 710 and the right-eye shutter 730 based on a left-eye shutter signal LSS and a right-eye shutter signal RSS that are synchronized to a driving of the display panel 200 . The eyeglasses part 700 opens the left-eye shutter 710 in response to the left-eye shutter signal LSS during an interval from a portion of sub-intervals S 1 and S 2 corresponding to second intervals P 62 and P 64 in which the combined image is displayed on the first and second display blocks DB 1 and DB 2 to a portion of sub-intervals S 5 and S 6 corresponding to second intervals P 62 and P 64 in which a following combined image is displayed on the first and second display blocks DB 1 and DB 2 . The eyeglasses part 700 closes the left-eye shutter 710 in response to the left-eye shutter signal LSS during an interval from the portion of sub-intervals S 5 and S 6 corresponding to the second intervals P 62 and P 64 in which the combined image is displayed on the first and second display blocks DB 1 and DB 2 to a portion of sub-intervals S 9 and S 10 corresponding to the second intervals P 62 and P 64 in which a following combined image is displayed on the first and second display blocks DB 1 and DB 2 . The eyeglasses part 700 closes the right-eye shutter 730 in response to the right-eye shutter signal RSS during an interval from the portion of sub-intervals S 1 and S 2 corresponding to the second intervals P 62 and P 64 in which the combined image is displayed on the first and second display blocks DB 1 and DB 2 to the portion of sub-intervals S 5 and S 6 corresponding to second intervals P 62 and P 64 in which a following combined image is displayed on the first and second display blocks DB 1 and DB 2 . The eyeglasses part 700 opens the right-eye shutter 730 in response to the right-eye shutter signal RSS during an interval from the portion of sub-intervals S 5 and S 6 corresponding to the second intervals P 62 and P 64 in which the combined image is displayed on the first and second display blocks DB 1 and DB 2 to the portion of sub-intervals S 9 and S 10 corresponding to the second intervals P 62 and P 64 in which a following combined image is displayed on the first and second display blocks DB 1 and DB 2 .

›DETAILED DESCRIPTION OF THE INVENTION · 12 of 12

According to the present exemplary embodiments, the left-eye image (or the right-eye image) is repeatedly corrected in k times, so that a display quality of a stereoscopic image may be substantially enhanced. Moreover, lights are not provided to the display panel during an interval in which the left-eye image and the right-eye image are combined to be displayed on the display panel, so that a crosstalk of a stereoscopic image may be prevented. Moreover, the black image is inserted between the left-eye image and the right-eye image, so that a time for correcting a slow falling response speed of liquid crystal may be secured. Thus, a duty ratio of a light source driving signal is altered, so that luminance efficiency may be substantially enhanced.

The foregoing is illustrative of the invention and is not to be construed as limiting thereof. Although a few exemplary embodiments of the invention have been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of the invention. Accordingly, all such modifications are intended to be included within the scope of the invention as defined in the claims. In the claims, means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Therefore, it is to be understood that the foregoing is illustrative of the invention and is not to be construed as limited to the specific exemplary embodiments disclosed, and that modifications to the disclosed exemplary embodiments, as well as other exemplary embodiments, are intended to be included within the scope of the appended claims. The invention is defined by the following claims, with equivalents of the claims to be included therein.

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Section H — Electricity

H04N13/04
H04N13/00

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