Patent ID: 11881168
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The display screen aging compensation method according to claim 8, wherein the initial demura data further comprises a demura compensation coefficient a and a demura offset b that correspond to each demura compensation area; and
wherein the obtaining the output gray level value Ly corresponding to each input gray level value L_x comprises:
obtaining, according to a second compensation formula L_y=(a*sqrt(coef_d))*L_x+b, the output gray level value Ly corresponding to each input gray level value L_x, wherein coef_d is a decay ratio of each primary color of the demura compensation area, and wherein the decay ratio of each primary color of the demura compensation area is a decay ratio of the same primary color of a display area in which the demura compensation area is located.