Patent ID: 11869450
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display brightness adjustment method implemented by an electronic apparatus, wherein the display brightness adjustment method comprises:
obtaining a to-be-displayed image;
determining, based on the to-be-displayed image, a plurality of average pixel brightness values of a plurality of backlight partitions of a backlight region of a liquid crystal display (LCD) panel, wherein each respective average pixel brightness value of the plurality of average pixel brightness values corresponds to a respective backlight partition of the plurality of backlight partitions;
determining, based on the plurality of average pixel brightness values, a plurality of initial dimming duty cycles for the plurality of backlight partitions by determining each respective initial dimming duty cycle of the plurality of initial dimming duty cycles based on the respective average pixel brightness value corresponding to the respective backlight partition;
determining, based on the plurality of initial dimming duty cycles and drive current threshold data that comprises an upper drive current threshold and a lower drive current threshold and a maximum drive current value and a minimum drive current value in the plurality of initial dimming duty cycles corresponding to the backlight partitions, a drive current value; and
indicating, based on the drive current value, to adjust light emitting brightness of the backlight region when the LCD panel displays the to-be-displayed image.