公开(公告)号：US12142181B2

公开(公告)日：2024-11-12

申请号：US18189434

申请日：2023-03-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji-Won Cha ,  Jongjin Kim ,  Hyungtae Jung

IPC: G09G3/00 ,  G09G3/20

Abstract: A display device includes a driving controller configured to receive an input image signal and to output an output image signal, a data driving circuit configured to output a data signal to correspond to the output image signal, and a display panel including a plurality of pixels configured to display an image corresponding to the data signal. The driving controller includes a moving picture accumulator configured to receive the input image signal and to output an accumulation image signal obtained by accumulating the input image signal for an accumulating time, a moving picture average calculator configured to output an average image signal by dividing the accumulation image signal by the accumulating time, and a normalizer configured to output the output image signal by normalizing the average image signal, based on the maximum reference brightness of the display panel.

公开(公告)号：US11749229B2

公开(公告)日：2023-09-05

申请号：US17732024

申请日：2022-04-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji-Won Cha

IPC: G09G5/10 ,  G09G3/3233

CPC classification number: G09G5/10 ,  G09G3/3233 ,  G09G2320/045 ,  G09G2320/0646

Abstract: A display device includes a display panel including a plurality of pixels for displaying an image, and a panel controller configured to receive image signals and convert the image signals into correction image signals. The panel controller includes a first circuit to accumulate the correction image signals each frame period and generate degradation data based on the accumulated correction image signals, and a second circuit configured to determine reference data from the degradation data and generate the correction image signals by correcting the image signals to have a target luminance that is changed based on the reference data.