Patent ID: 11961440
Assignee: HKC CORPORATION LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method for driving a display device, comprising:
obtaining a refresh frequency of a current frame image; and
adjusting a common voltage of all pixels in a second vertical blank interval to control a difference value between a first voltage difference and a second voltage difference to be within a preset-voltage-difference-range if the refresh frequency of the current frame image is different from a refresh frequency of a reference frame image, the preset-voltage-difference-range is equivalently replaced with a single ideal value 0;
wherein the first voltage difference is a root mean square of m difference values between m common voltages and m pixel voltages of the pixels obtained at m time points in a first vertical blank interval when the reference frame image is displayed on the display device; the second voltage difference is a root mean square of n difference values between n common voltages and n pixel voltages of the pixels obtained at n time points in the second vertical blank interval when the current frame image is displayed on the display device;
wherein when the reference frame image is displayed by the display device a vertical blank interval of the display device is defined as the first vertical blank interval; when the current frame image is displayed by the display device, the vertical blank interval of the display device is defined as the second vertical blank interval.