Driving method of display panel, display panel, and display device
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorJhenwei He
Life of this patent
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Abstract
A driving method of a display panel, a display panel, and a liquid crystal display device are provided. The display panel includes sub-pixels in N areas. Gray level states of each of the sub-pixels include a high gray level and a low gray level. The gray level states of the sub-pixels in the same area remain for N consecutive frames, and the gray level states of the sub-pixels in one of the N areas in the same frame are switched. As such, a brightness change range between adjacent frames can be decreased, and a brightness change frequency can be increased, thereby reducing or avoiding flicker phenomenon.
Claims19
A driving method of a display panel, comprising:
- initializing gray level states of sub-pixels of the display panel, wherein the gray level states comprise a high gray level and a low gray level;
- dividing the sub-pixels of the display panel into N areas, wherein N is a positive integer greater than or equal to 2;
- and
- driving the gray level states of the sub-pixels in the same area to remain for N consecutive frames, and switching the gray level states of the sub-pixels in one of the N areas in the same frame;
- wherein the step of the gray level states of the sub-pixels of the display panel comprises:
- initializing the gray level states of the sub-pixels to a corresponding high gray level or a corresponding low gray level;
- configuring a point value in a gamma curve with a first correction coefficient of less than an average value to be the corresponding high gray level;
- and
- configuring a point value in the gamma curve with a second correction coefficient of greater than or equal to the average value to be the corresponding low gray level, wherein the average value of the first correction coefficient and the second correction coefficient is obtained by dividing a sum of the first correction coefficient and the second correction coefficient by 2.
A display panel, comprising:
- an initializing module, configured to initialize gray level states of sub-pixels of the display panel, wherein the gray level states comprise a high gray level and a low gray level;
- a dividing module, configured to divide the sub-pixels of the display panel into N areas, where N is a positive integer greater than or equal to 2;
- and
- a driving module, configured to drive the gray level states in the same area to remain for N consecutive frames, and configured to switch the gray level states of the sub-pixels in one of the N areas in the same frame;
- wherein the gray level states of the sub-pixels are initialized to a corresponding high gray level or a corresponding low gray level;
- a point value in a gamma curve with a first correction coefficient of less than an average value to be the corresponding high gray level is configured;
- and
- a point value in the gamma curve with a second correction coefficient of greater than or equal to the average value to be the corresponding low gray level is configured, wherein the average value of the first correction coefficient and the second correction coefficient is obtained by dividing a sum of the first correction coefficient and the second correction coefficient by 2.
Dependencies are inferred from the claim text.