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US 8,427,515 B2Granted
Display device and method of driving the same
AssigneeSamusng Display Co., Ltd.
InventorsHee-Seop Kim, Jun-Woo Lee, Hong-Jo Park, Eun-Hee Han, Seung-Hoon Lee, Sung-Jae Yun
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Abstract
Disclosed are a display device and a method of driving the same that improve both moving image visibility and lateral visibility. A display panel including gate and data lines arranged in the form of a matrix for displaying an image, a gate driver for driving the gate line, and a data driver for supplying a low gray scale image signal, a high gray scale image signal, and a black impulsive signal to the data line within one frame period.
Claims29
A display device comprising:
- a display panel including gate and data lines arranged in the form of a matrix and displaying an image;
- a gate driver driving the gate line;
- a data driver supplying a low gray scale image signal, a high gray scale image signal, and a black impulsive signal to the data line within one frame period,
- wherein the data driver divides one frame period into first to third sub-frames, and supplies one of the low gray scale image signal, the high gray scale image signal and the black impulsive signal at every sub-frame to the data line, and
- wherein the data driver supplies the black impulsive signal to the last sub-frame in the first to third sub-frames.
2 more elements
A display device comprising:
- a display panel including gate and data lines arranged in the form of a matrix and displaying an image;
- a gate driver driving the gate line;
- a data driver supplying a low gray scale image signal, a high gray scale image signal, a black impulsive signal and a compensation signal to the data line within one frame period,
- wherein the data driver divides one frame period into first to fourth sub-frames, selects one of the low gray scale image signal, the high gray scale image signal, the black impulsive signal and a compensation signal corresponding to the black impulsive signal at every sub-frame, and supplies the selected signal to the data line, and
- wherein the data driver supplies the black impulsive signal to the last sub-frame in the first to third sub-frames.
2 more elements
A display device comprising:
- a display panel having gate and data lines arranged in the form of a matrix and displaying an image;
- a backlight unit supplying light to the display panel;
- a gate driver driving the gate line;
- a data driver supplying a low gray scale image signal and a high gray scale image signal to the data line within one frame period;
- and
- a backlight driver turning off the backlight unit for a predetermined time within the one frame period,
- wherein the data driver divides one frame period into first and second sub-frames, and applies one of the low gray scale image signal and the high gray scale image signal to each of the sub-frames, and
- wherein an average value between the low and the high gray scale image signals is equal to a normal gray scale image signal.
5 more elements
A method of driving a display device, the method comprising:
- dividing one frame period charging a pixel with a pixel voltage into a plurality of sub-frames;
- applying a gray impulsive signal to sub-frames of a first group selected from the plurality of sub-frames;
- and
- applying a black impulsive signal to sub-frames of a second group selected from the plurality of sub-frames, different from the first group,
- wherein the gray impulsive signal includes a low gray scale image signal and a high gray scale image signal, and an average value between the low and high gray scale image signals is equal to a normal gray scale image signal, and
- wherein the black impulsive signal is applied after the gray impulsive signal is applied.
3 more elements
A method of driving a display device, the method comprising:
- dividing one frame charging a pixel with a pixel voltage into a first sub-frame and a second sub-frame;
- supplying one signal selected from the group consisting of a low gray scale image signal and a high gray scale image signal to each of the sub-frames;
- and
- turning off a backlight unit for a specific time in every one frame period,
- wherein an average value between the low and high gray scale image signals is equal to a normal gray scale image signal.
2 more elements
Dependencies are inferred from the claim text.