公开(公告)号：US20180182356A1

公开(公告)日：2018-06-28

申请号：US15840352

申请日：2017-12-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hwa-seok SEONG ,  Young-hun JO ,  Gang-mo KOO ,  Sang-su LEE

IPC: G09G5/10 ,  G09G5/00

CPC classification number: G09G5/10 ,  G09G3/3426 ,  G09G5/003 ,  G09G2300/0452 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2360/16

Abstract: A display apparatus and a method for controlling the same are provided. The method for controlling the display apparatus according to the present disclosure includes receiving an image; distinguishing the image into a plurality of blocks to detect a maximum pixel value each of the plurality of blocks; determining a target diffuser value usable for compensating for a duty of a backlight based on the detected maximum pixel value for each block; and driving the backlight for each of the plurality of blocks based on a backlight duty value compensated based on the target diffuser value. Therefore, the display apparatus according to the present disclosure may address a problem that gradation overcompensation occurs in a region of a certain block, when the backlight is driven in a unit of the plurality of blocks, using a local dimming mode.