公开(公告)号：US11508288B2

公开(公告)日：2022-11-22

申请号：US17197207

申请日：2021-03-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byung Ki Chun ,  Hyeon Min Kim ,  Young Wook Yoo ,  Jun Gyu Lee ,  Hyun Jun Lim

IPC: G09G3/20

Abstract: A display device includes pixels; an image converter which generates a second image by correcting grayscales of a logo among a first image for the pixels; and a data driver which provides data voltages corresponding to the second image to the pixels. The image converter generates first accumulated data by accumulating first map data corresponding to a logo area larger than the logo among the first image during a plurality of frame periods, generates second accumulated data by scaling the first accumulated data every refresh cycle, generates third accumulated data by initializing values smaller than a first threshold value among the second accumulated data to be a background value, and specifies pixels corresponding to the logo based on second map data corresponding to the third accumulated data.