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

Claim 10:
11. An electronic device, comprising:
a display screen;
a display screen aging compensation circuit; and
a display driver circuit coupled to the display screen and to the display screen aging compensation circuit;
wherein the display screen aging compensation circuit is configured to:
obtain display data of each display area of the display screen, wherein:
the display screen comprises a first display area and a second display area,
a usage time of the first display area is greater than a usage time of the second display area,
the display data comprises usage time t of the respective display areas, a maximum gray level value Lev_max that is of each primary color and that is obtained before the display data is obtained, and an average gray level value Lev of each primary color within the usage time t, and
the usage time is accumulated screen-on time that is of the respective display areas and that is obtained after the display screen is powered on;

obtain a decay ratio of each primary color of the each display area based on the display data; and
perform aging compensation on each display area based on the decay ratio of each primary color of each display area.