The present invention provides a display device with reduced power consumption and that reduces changes in luminance, and perceptibility of flicker, and a driving method thereof. A display device according to an exemplary embodiment comprises: a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; and a graphics processing unit configured to transmit input image data to the signal controller, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and the display panel is driven at a second frequency that is lower than the first frequency when the still image is displayed.

Claims

27 · 2 independent · depth 6

27 granted claims

›1.independentA display device, comprising:na display panel configured to display a still image and a motion picture;a signal controller configured to control signa…+13

›2.↳ 1The display device of claim 1, whereinnthe graphics processing unit transmits a still image start signal and a still image end signal to the signal co…d2+12

›3.↳ 2The display device of claim 2, whereinnthe signal controller further comprises a frame counting unit configured to count the number of still image seq…d3+2

›6.↳ 2The display device of claim 2, whereinnthe light source driver drives the light source unit at a first ratio when the display panel is driven at the f…d3+3

›10.↳ 2The display device of claim 2, whereinnthe display panel is a normally black mode, andthe light source driver drives the light source unit with the fi…d3+3

›14.↳ 2The display device of claim 2, wherein the display panel is a normally white mode, and the light source driver drives the light source unit with the f…d3

›15.independentA method for driving a display device comprising a display panel displaying a moving picture and a still image, and a signal controller controlling si…+12

›16.↳ 15The method of claim 15, further comprising:ncounting the number of still image sequential frames inputted before the still image end signal is applied…d2+2

›19.↳ 15The method of claim 15, whereinnwhen the display panel is driven at a first frequency, the light source unit is driven at the first ratio, and when th…d2+3

›23.↳ 15The method of claim 15, wherein the display panel is a normally black mode, when the display panel is driven with the first frequency, the light sourc…d2+3

›27.↳ 15The method of claim 15, wherein the display panel is a normally white mode, when the display panel is driven with the first frequency, the light sourc…d2

Classifications

2 codes

IPC · International Patent Classification

Section G — Physics

G09G3/20
G09G3/36

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Hong Zhou

art unit 2623 · TC 2600

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Type	Document	Date
related publication	US 20130038621 A1	14 Feb 2013

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