公开(公告)号：US11929043B1

公开(公告)日：2024-03-12

申请号：US17976893

申请日：2022-10-31

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chun-Hsiang Wang

IPC: G09G3/34 ,  G06F3/041

CPC classification number: G09G3/3426 ,  G09G2320/0626 ,  G09G2320/0646

Abstract: A detection circuit is used for a display controller configured to generate a plurality of backlight data according to a plurality of image data. The detection circuit includes a resize circuit and a comparison circuit. The resize circuit is configured to receive the plurality of image data and convert the plurality of image data into a plurality of region data. The comparison circuit, coupled to the resize circuit, is configured to: receive at least one first region data from the resize circuit; receive at least one first backlight data corresponding to the at least one first region data from the display controller; compare the at least one first region data with the at least one first backlight data to generate a comparison result; and output a control signal to control an output setting of the display controller according to the comparison result.