Patent ID: 11862077
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The method according to claim 1, wherein for the adjusted gamma voltage curve, a division value of a gamma voltage range corresponding to a gray scale range with a secondary maximum ratio is less than a division value of a gamma voltage range corresponding to each gray scale range except the gray scale range with the maximum ratio and the gray scale range with the secondary maximum ratio, and is greater than the division value of the gamma voltage range corresponding to the gray scale range with the maximum ratio; and
adjusting the division value of the gamma voltage range corresponding to each gray scale range of the gamma voltage curve according to the calculated ratio so that the division value of the gamma voltage range corresponding to the gray scale range with the maximum ratio is less than the division value of the gamma voltage range corresponding to any remaining gray scale range, further includes:
determining the gray scale range with the secondary maximum ratio from the calculated ratios;
calculating reference gamma voltages of two end points corresponding to gray scale coordinates of two end points in the gray scale range with the secondary maximum ratio; and
calculating the division value of the gamma voltage range corresponding to the gray scale range with the secondary maximum ratio according to a difference between the reference gamma voltages of two end points corresponding to the gray scale range with the secondary maximum ratio and a difference between the gray scale coordinates of two end points in the gray scale range with the secondary maximum ratio.