公开(公告)号：US11875736B2

公开(公告)日：2024-01-16

申请号：US17986115

申请日：2022-11-14

Applicant: Samsung Display Co., Ltd.

Inventor： Youngsoo Sohn ,  Jong-Woong Park ,  SeokJeong Song ,  Jiyeon Baik

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0238 ,  G09G2320/043 ,  G09G2320/066 ,  G09G2330/021

Abstract: A driving controller includes a compensator that calculates a compensation value based on first accumulated stress, and outputs an output image signal by compensating for the input image signal with the compensation value, a stress converter that converts the output image signal into current stress in response to an enable signal, an accumulation stress calculator that outputs second accumulated stress by adding the first accumulated stress and the current stress in response to the enable signal, a memory that stores the second accumulated stress and provides the first accumulated stress to the compensator and the accumulation stress calculator, and an operating time calculator that receives a current operating frequency and outputs the enable signal of an active level based on the current operating frequency.

公开(公告)号：US20240331606A1

公开(公告)日：2024-10-03

申请号：US18535314

申请日：2023-12-11

Applicant: Samsung Display Co., LTD.

Inventor： JIYEON BAIK ,  SeokJeong Song ,  KYUNGSU LEE

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2074 ,  G09G3/3233 ,  G09G2300/0452 ,  G09G2360/142 ,  G09G2360/16

Abstract: A display device may include a display panel that includes pixels each displaying one of a red, a green, and a blue, a controller that generates an output grayscale value based on an input grayscale value, a remapped grayscale value corresponding to the input grayscale value, and a gain value calculated based on a measured luminance of the display panel corresponding to a specific grayscale, and a data driver that generates a data signal based on the output grayscale value and provides the data signal to each of the pixels.