Patent ID: 11955055
Assignee: HKC CORPORATION LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 11:
12. The drive circuit according to claim 9, wherein the algorithm controller configured to determine, based on the target grayscale value of the pixel unit in the picture data of the frame to be displayed, the target pixel unit row that needs luminance compensation in the frame to be displayed is configured to:
for each pixel unit column in the picture data of the frame to be displayed, determine whether the pixel unit column comprises m gradient pixel units with target grayscale values progressively increasing or progressively decreasing;
if the pixel unit column comprises m gradient pixel units with target grayscale values progressively increasing or progressively decreasing, determine whether there is at least one pixel unit with a target grayscale value less than a preset low grayscale threshold in the m gradient pixel units, wherein m is a positive integer; and
if there is at least one pixel unit with a target grayscale value less than the preset low grayscale threshold in the m gradient pixel units, determine, as a target gradient pixel unit, a pixel unit with a target grayscale value less than a preset high grayscale threshold in the m gradient pixel units, and determine, as the target pixel unit row, a pixel unit row where the target gradient pixel unit is located, wherein the preset high grayscale threshold is greater than the preset low grayscale threshold.