Liquid crystal display panel and liquid crystal display device

The present invention relates to the field of liquid crystal display (LCD) technology, and more particularly to an LCD panel and an LCD device.

With technical development, people are asking for more and more multimedia content, such as hi-fi music, high resolution movies, and more realistic images. Hence, in order to raise display quality of the multimedia, users want for the LCD panel to have a high resolution, a high brightness, a long viewing time and a narrow bezel.

A typical LCD panel uses one scan line to control one row of pixels, which requires more scan lines for a high resolution LCD panel which increases bezel size of the LCD panel, thus influencing narrow bezel or no bezel designs.

Hence, it is need to provide an LCD panel and an LCD device, to solve the problem of the typical art.

The embodiment of the present application provide an LCD panel and an LCD device which is able to better implement the narrow bezel design or the non-bezel design; to solve the technical problem about image caused by the driving circuit of the LCD panel and LCD device, while applying to the narrow bezel design or the non-bezel design.

The present invention provides a LCD panel, which comprises data lines, scan lines, and pixel units disposed between the data lines and the scan lines; the data lines comprise first data lines and second data lines.

(2n+1)th row pixel units and (2n+2)th row pixel units connect with the same one of the scan lines.

(2n+1)th column pixel units of the (2n+1)th row connect with the first data line. (2n+2)th column pixel units of the (2n+1)th row connect with the second data line. (2n+1)th column pixel units of the (2n+2)th row connect with the second data line. (2n+2)th column pixel units of the (2n+2)th row connect with the first data line.

The first data line and the second data line are disposed on different sides of the corresponding pixel unit.

A polarity of data signal of the first data line and a polarity of data signal of the second data line are inverted.

The LCD panel further comprises data-line driving circuit.

The data-line driving circuit comprises a positive polarity signal source, a negative polarity signal source, a first level positive polarity switch, a first level negative polarity switch, a first level control signal line, a second level positive polarity switch, a second level negative polarity switch and a second level control signal line.

An input terminal of the first level positive polarity switch connects with the positive polarity signal source, a control terminal of the first level positive polarity switch connects with first level control signal line, an output terminal of the first level positive polarity switch connects with an input terminal of the second level positive polarity switch.

An input terminal of the first level negative polarity switch connects with the negative polarity signal source, a control terminal of the first level negative polarity switch connects with the first level control signal line, an output terminal of the first level negative polarity switch connects with an input terminal of the second level negative polarity switch.

A control terminal of the second level positive polarity switch connects with the second level control signal line, an output terminal of the second level positive polarity switch connects with the first data line.

A control terminal of the second level negative polarity switch connects with the second level control signal line, an output terminal of the second level negative polarity switch connects with the second data line.

In the LCD panel of the present invention, the positive polarity source corresponds with at least two of the first level positive polarity switches, the negative polarity source corresponds with at least two of the second level negative polarity switches.

In the LCD panel of the present invention, each of the first level positive polarity switch corresponds at least two of the second positive polarity switches, each of the first level negative polarity switch corresponds at least two of the second negative polarity switches.

In the LCD panel of the present invention, the data-line driving circuit comprises one of the positive polarity signal source, one of the negative polarity signal source, two of the first level positive polarity switch, two of the first level negative polarity switch, two of the first level control signal line, six of the second level positive polarity switch, six of the second level negative polarity switch and six of the second level control signal line.

The present invention further provides a LCD panel, which comprises data lines, scan lines, and pixel units disposed between the data lines and the scan lines; the data lines comprise first data lines and second data lines.

(2n+1)th row pixel units and (2n+2)th row pixel units connect with the same one of the scan lines.

(2n+1)th column pixel units of the (2n+1)th row connect with the first data line. (2n+2)th column pixel units of the (2n+1)th row connect with the second data line. (2n+1)th column pixel units of the (2n+2)th row connect with the second data line. (2n+2)th column pixel units of the (2n+2)th row connect with the first data line.

The first data line and the second data line are disposed on different sides of the corresponding pixel unit.

In the LCD panel of the present invention, a polarity of data signal of the first data line and a polarity of data signal of the second data line are inverted.

In the LCD panel of the present invention, the LCD panel further comprises data-line driving circuit.

The data-line driving circuit comprises a positive polarity signal source, a negative polarity signal source, a first level positive polarity switch, a first level negative polarity switch, a first level control signal line, a second level positive polarity switch, a second level negative polarity switch and a second level control signal line.

An input terminal of the first level positive polarity switch connects with the positive polarity signal source, a control terminal of the first level positive polarity switch connects with first level control signal line, an output terminal of the first level positive polarity switch connects with an input terminal of the second level positive polarity switch.

An input terminal of the first level negative polarity switch connects with the negative polarity signal source, a control terminal of the first level negative polarity switch connects with the first level control signal line, an output terminal of the first level negative polarity switch connects with an input terminal of the second level negative polarity switch.

A control terminal of the second level positive polarity switch connects with the second level control signal line, an output terminal of the second level positive polarity switch connects with the first data line.

A control terminal of the second level negative polarity switch connects with the second level control signal line, an output terminal of the second level negative polarity switch connects with the second data line.

In the LCD panel of the present invention, the positive polarity source corresponds with at least two of the first level positive polarity switches, the negative polarity source corresponds with at least two of the second level negative polarity switches.

In the LCD panel of the present invention, each of the first level positive polarity switch corresponds at least two of the second positive polarity switches, each of the first level negative polarity switch corresponds at least two of the second negative polarity switches.

In the LCD panel of the present invention, the data-line driving circuit comprises one of the positive polarity signal source, one of the negative polarity signal source, two of the first level positive polarity switch, two of the first level negative polarity switch, two of the first level control signal line, six of the second level positive polarity switch, six of the second level negative polarity switch and six of the second level control signal line.

The present invention further provides a LCD device, which comprises which comprises a LCD panel and a backlight module. The LCD panel comprises data lines, scan lines, and pixel units disposed between the data lines and the scan lines; the data lines comprise first data lines and second data lines.

(2n+1)th row pixel units and (2n+2)th row pixel units connect with the same one of the scan lines.

(2n+1)th column pixel units of the (2n+1)th row connect with the first data line. (2n+2)th column pixel units of the (2n+1)th row connect with the second data line. (2n+1)th column pixel units of the (2n+2)th row connect with the second data line. (2n+2)th column pixel units of the (2n+2)th row connect with the first data line.

The first data line and the second data line are disposed on different sides of the corresponding pixel unit.

In the LCD device of the present invention, a polarity of data signal of the first data line and a polarity of data signal of the second data line are inverted.

In the LCD device of the present invention, the LCD panel further comprises data-line driving circuit.

The data-line driving circuit comprises a positive polarity signal source, a negative polarity signal source, a first level positive polarity switch, a first level negative polarity switch, a first level control signal line, a second level positive polarity switch, a second level negative polarity switch and a second level control signal line.

An input terminal of the first level positive polarity switch connects with the positive polarity signal source, a control terminal of the first level positive polarity switch connects with first level control signal line, an output terminal of the first level positive polarity switch connects with an input terminal of the second level positive polarity switch.

An input terminal of the first level negative polarity switch connects with the negative polarity signal source, a control terminal of the first level negative polarity switch connects with the first level control signal line, an output terminal of the first level negative polarity switch connects with an input terminal of the second level negative polarity switch.

A control terminal of the second level positive polarity switch connects with the second level control signal line, an output terminal of the second level positive polarity switch connects with the first data line.

A control terminal of the second level negative polarity switch connects with the second level control signal line, an output terminal of the second level negative polarity switch connects with the second data line.

In the LCD device of the present invention, the positive polarity source corresponds with at least two of the first level positive polarity switches, the negative polarity source corresponds with at least two of the second level negative polarity switches.

In the LCD device of the present invention, each of the first level positive polarity switch corresponds at least two of the second positive polarity switches, each of the first level negative polarity switch corresponds at least two of the second negative polarity switches.

In the LCD device of the present invention, the data-line driving circuit comprises one of the positive polarity signal source, one of the negative polarity signal source, two of the first level positive polarity switch, two of the first level negative polarity switch, two of the first level control signal line, six of the second level positive polarity switch, six of the second level negative polarity switch and six of the second level control signal line.

Compared with the typical LCD panel and LCD device, the LCD panel and LCD device of the present invention can effectively reduce the quantity of scan line to better implement the narrow bezel design or the non-bezel design of the LCD panel, by disposing the first data line and the second data line; to solve the technical problem about image caused by the driving circuit of the LCD panel and LCD device, while applying to the narrow bezel design or the non-bezel design.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the following are simple description to the drawings used in the embodiments. The following drawing is only some examples of the present invention, those ordinary skilled in the art can get other drawings from these drawings without creative efforts premise.

FIG. 1 is a structural illustrative diagram of a preferred embodiment of the LCD panel of the present invention.

Please refer to the drawings, wherein the same component characters indicate the same components. The following description is based on the specific embodiment of the present invention, which should not be construed as limiting the present invention in other specific embodiments which are not described in detail.

FIG. 1 is a structural illustrative diagram of a preferred embodiment of the LCD panel of the present invention.

The LCD panel of the preferred embodiment comprises data lines, scan lines, pixel units disposed between the data lines and the scan lines, and a data-line driving circuit. The data lines comprise first data lines and second data lines. A polarity of data signal of the first data line and a polarity of data signal of the second data line are inverted. The data-line driving circuit is used to provide data signal to the first data line and the second data line.

(2n+1)th row pixel units and (2n+2)th row pixel units connect with a same one of the scan lines. (2n+1)th column pixel units of the (2n+1)th row connect with the first data line. (2n+2)th column pixel units of the (2n+1)th row connect with the second data line. (2n+1)th column pixel units of the (2n+2)th row connect with the second data line. (2n+2)th column pixel units of the (2n+2)th row connect with the first data line.

The first data line and the second data line are disposed on different sides of the corresponding pixel unit.

The data-line driving circuit in FIG. 1 comprises a positive polarity signal source A 1 , a negative polarity signal source B 1 , a first level positive polarity switch (Q 1 , Q 2 ), a first level negative polarity switch (Q 3 , Q 4 ), a first level control signal line (a 1 , a 2 ), a second level positive polarity switch (Q 11 , Q 12 , Q 13 , Q 21 , Q 22 , Q 23 ), a second level negative polarity switch (Q 31 , Q 32 , Q 33 , Q 41 , Q 42 , Q 43 ) and a second level control signal line (a 3 , a 4 , a 5 ).

An input terminal of the first level positive polarity switch Q 2 connects with the positive polarity signal source A 1 , a control terminal of the first level positive polarity switch Q 2 connects with first level control signal line a 2 , an output terminal of the first level positive polarity switch Q 2 connects with an input terminal of the second level positive polarity switch (Q 21 , Q 22 , Q 23 ).

An input terminal of the first level negative polarity switch Q 3 connects with the negative polarity signal source B 1 , a control terminal of the first level negative polarity switch Q 3 connects with the first level control signal line a 2 , an output terminal of the first level negative polarity switch Q 3 connects with an input terminal of the second level negative polarity switch (Q 31 , Q 32 , Q 33 ).

An input terminal of the first level negative polarity switch Q 4 connects with the negative polarity signal source B 1 , a control terminal of the first level negative polarity switch Q 4 connects with the first level control signal line a 2 , an output terminal of the first level negative polarity switch Q 4 connects with an input terminal of the second level negative polarity switch (Q 41 , Q 42 , Q 43 ).

A control terminal of the second level positive polarity switch Q 11 connects with the second level control signal line a 3 , an output terminal of the second level positive polarity switch Q 11 connects with the first data line d 1 .

A control terminal of the second level positive polarity switch Q 12 connects with the second level control signal line a 4 , an output terminal of the second level positive polarity switch Q 12 connects with the first data line d 4 .

A control terminal of the second level positive polarity switch Q 13 connects with the second level control signal line a 5 , an output terminal of the second level positive polarity switch Q 13 connects with the first data line d 5 .

A control terminal of the second level positive polarity switch Q 21 connects with the second level control signal line a 3 , an output terminal of the second level positive polarity switch Q 21 connects with the first data line d 8 .

A control terminal of the second level positive polarity switch Q 22 connects with the second level control signal line a 4 , an output terminal of the second level positive polarity switch Q 22 connects with the first data line d 9 .

A control terminal of the second level positive polarity switch Q 23 connects with the second level control signal line a 5 , an output terminal of the second level positive polarity switch Q 23 connects with the first data line d 12 .

A control terminal of the second level positive polarity switch Q 31 connects with the second level control signal line a 3 , an output terminal of the second level positive polarity switch Q 31 connects with the first data line d 2 .

A control terminal of the second level positive polarity switch Q 32 connects with the second level control signal line a 4 , an output terminal of the second level positive polarity switch Q 32 connects with the first data line d 3 .

A control terminal of the second level positive polarity switch Q 33 connects with the second level control signal line a 5 , an output terminal of the second level positive polarity switch Q 33 connects with the first data line d 6 .

A control terminal of the second level positive polarity switch Q 41 connects with the second level control signal line a 3 , an output terminal of the second level positive polarity switch Q 41 connects with the first data line d 7 .

A control terminal of the second level positive polarity switch Q 42 connects with the second level control signal line a 4 , an output terminal of the second level positive polarity switch Q 42 connects with the first data line d 10 .

A control terminal of the second level positive polarity switch Q 43 connects with the second level control signal line a 5 , an output terminal of the second level positive polarity switch Q 43 connects with the first data line d 11 .

When the LCD panel of the preferred embodiment performs image display, first, the scan line G 1 inputs a high voltage level signal, the thin film transistors (TFT) of the first row pixel units and the second row pixel units conduct.

When the scan line G 1 inputs a high voltage level signal, the first level control signal line a 1 and the second level control signal line a 3 are first inputted with high voltage level, then the second level positive polarity switch Q 11 , the first level positive polarity switch Q 1 , the second level negative polarity switch Q 31 , and the first level negative polarity switch Q 3 conduct. The pixel unit of the first row and the first column connects with the positive polarity signal source A 1 by the first data line d 1 , the second level positive polarity switch Q 11 , and the first positive polarity switch Q 1 . The pixel unit of the second row and the first column connects with the negative polarity signal source B 1 by the second data line d 2 , the second level negative polarity switch Q 31 , the first negative polarity switch Q 3 .

Then, the first level control signal line a 1 and the second level control signal line a 4 are input with high voltage level, then, the second level positive polarity switch Q 12 , the first level positive polarity switch Q 1 , the second level negative polarity switch Q 32 , and the first level negative polarity switch Q 3 conduct. The pixel unit of the second row and the second column connects with the positive polarity signal source A 1 by the first data line d 4 , the second level positive polarity switch Q 12 , and the first positive polarity switch Q 1 . The pixel unit of the first row and the second column connects with the negative polarity signal source B 1 by the second data line d 3 , the second level negative polarity switch Q 32 , the first negative polarity switch Q 3 .

Then, the first level control signal line a 1 and the second level control signal line a 5 are input with high voltage level, then, the second level positive polarity switch Q 13 , the first level positive polarity switch Q 1 , the second level negative polarity switch Q 33 , and the first level negative polarity switch Q 3 conduct. The pixel unit of the first row and the third column connects with the positive polarity signal source A 1 by the first data line d 5 , the second level positive polarity switch Q 13 , and the first positive polarity switch Q 1 . The pixel unit of the second row and the third column connects with the negative polarity signal source B 1 by the second data line d 6 , the second level negative polarity switch Q 33 , the first negative polarity switch Q 3 .

Then, the first level control signal line a 2 and the second level control signal line a 3 are input with high voltage level, the first level control signal line a 1 and the second level control signal line a 5 are input with low voltage level, then, the second level positive polarity switch Q 21 , the first level positive polarity switch Q 2 , the second level negative polarity switch Q 41 , and the first level negative polarity switch Q 4 conduct. The pixel unit of the second row and the fourth column connects with the positive polarity signal source A 1 by the first data line d 8 , the second level positive polarity switch Q 21 , and the first positive polarity switch Q 2 . The pixel unit of the first row and the fourth column connects with the negative polarity signal source B 1 by the second data line d 7 , the second level negative polarity switch Q 41 , the first negative polarity switch Q 4 .

Then, the first level control signal line a 2 and the second level control signal line a 4 are input with high voltage level, the second level control signal line a 3 is inputted with low voltage level, then, the second level positive polarity switch Q 22 , the first level positive polarity switch Q 2 , the second level negative polarity switch Q 42 , and the first level negative polarity switch Q 4 conduct. The pixel unit of the first row and the fifth column connects with the positive polarity signal source A 1 by the first data line d 9 , the second level positive polarity switch Q 22 , and the first positive polarity switch Q 2 . The pixel unit of the second row and the fifth column connects with the negative polarity signal source B 1 by the second data line d 10 , the second level negative polarity switch Q 42 , the first negative polarity switch Q 4 .

Then, the first level control signal line a 2 and the second level control signal line a 5 are input with high voltage level, the second level control signal line a 4 is inputted with low voltage level, then, the second level positive polarity switch Q 23 , the first level positive polarity switch Q 2 , the second level negative polarity switch Q 43 , and the first level negative polarity switch Q 4 conduct. The pixel unit of the second row and the sixth column connects with the positive polarity signal source A 1 by the first data line d 12 , the second level positive polarity switch Q 23 , and the first positive polarity switch Q 2 . The pixel unit of the first row and the sixth column connects with the negative polarity signal source B 1 by the second data line d 11 , the second level negative polarity switch Q 43 , the first negative polarity switch Q 4 .

When the pixel units of the first row and the second row finish displaying, the scan line G 1 is inputted with a low voltage level signal and the scan line G 2 is inputted with a high voltage level signal, to perform image display to the pixel units of the third row and the fourth row, to complete the image operation of the whole pixel units.

In this way, the image display process of the LCD panel of the preferred embodiment completes.

The LCD panel of the preferred embodiment finishes the image display of the twelve pixel units within one frame image by the positive polarity signal source A 1 and the negative polarity source B 1 , in the next frame image, it only needs to change polarities of the positive polarity signal source A 1 and the negative polarity source B 1 , the dot-inversion operation of the LCD panel can be implemented, to effectively improve the display effect of the LCD panel.

The LCD panel of the preferred embodiment can effectively reduce number of scan lines to design LCD panels with narrow bezels or have no bezels, by disposing the first data line and the second data line. The disposition of the dot-inversion of the LCD panel can effectively improve display of the LCD panel.

The present invention further provides a LCD device. The LCD device of the preferred embodiment comprises a LCD panel and a backlight module. The LCD panel comprises data lines, scan lines, pixel units disposed between the data lines and the scan lines, and a data-line driving circuit. The data lines comprise first data lines and second data lines. A polarity of data signal of the first data line and a polarity of data signal of the second data line are inverted. The data-line driving circuit is used to provide data signal to the first data line and the second data line.

(2n+1)th row pixel units and (2n+2)th row pixel units connect with the same one of the scan lines. (2n+1)th column pixel units of the (2n+1)th row connect with the first data line. (2n+2)th column pixel units of the (2n+1)th row connect with the second data line. (2n+1)th column pixel units of the (2n+2)th row connect with the second data line. (2n+2)th column pixel units of the (2n+2)th row connect with the first data line.

The first data line and the second data line are disposed on different sides of the corresponding pixel unit.

Preferably, a polarity of data signal of the first data line and a polarity of data signal of the second data line are inverted.

Preferably, the LCD panel further comprises data-line driving circuit.

The data-line driving circuit comprises a positive polarity signal source, a negative polarity signal source, a first level positive polarity switch, a first level negative polarity switch, a first level control signal line, a second level positive polarity switch, a second level negative polarity switch and a second level control signal line.

An input terminal of the first level positive polarity switch connects with the positive polarity signal source, a control terminal of the first level positive polarity switch connects with first level control signal line, an output terminal of the first level positive polarity switch connects with an input terminal of the second level positive polarity switch.

An input terminal of the first level negative polarity switch connects with the negative polarity signal source, a control terminal of the first level negative polarity switch connects with the first level control signal line, an output terminal of the first level negative polarity switch connects with an input terminal of the second level negative polarity switch.

A control terminal of the second level positive polarity switch connects with the second level control signal line, an output terminal of the second level positive polarity switch connects with the first data line.

A control terminal of the second level negative polarity switch connects with the second level control signal line, an output terminal of the second level negative polarity switch connects with the second data line.

Preferably, the positive polarity source corresponds with at least two of the first level positive polarity switches, the negative polarity source corresponds with at least two of the second level negative polarity switches.

Preferably, each of the first level positive polarity switch corresponds at least two of the second positive polarity switches, each of the first level negative polarity switch corresponds at least two of the second negative polarity switches.

Preferably, the data-line driving circuit comprises one of the positive polarity signal source, one of the negative polarity signal source, two of the first level positive polarity switch, two of the first level negative polarity switch, two of the first level control signal line, six of the second level positive polarity switch, six of the second level negative polarity switch and six of the second level control signal line.

Although the present invention has been disclosed as preferred embodiments, the foregoing preferred embodiments are not intended to limit the present invention. Those of ordinary skill in the art, without departing from the spirit and scope of the present invention, can make various kinds of modifications and variations to the present invention. Therefore, the scope of the claims of the present invention must be defined.