公开(公告)号：US20230282154A1

公开(公告)日：2023-09-07

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 ,  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：US20230169907A1

公开(公告)日：2023-06-01

申请号：US17895623

申请日：2022-08-25

Applicant: Samsung Display Co., Ltd.

Inventor： SEONGJUN KIM ,  YOUNGSOO SOHN ,  JAE WOO RYU ,  KWAN-YOUNG OH ,  SEUNGYOUNG CHOI

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/027

Abstract: A display apparatus includes a display panel, a driving controller, a gate driver and a data driver. The driving controller is configured to insert a compensation image to first image data including a normal image to generate second image data. The gate driver is configured to shift an output time of a gate signal and to output the gate signal having a shifted output time to the display panel. The data driver is configured to generate a data voltage based on the second image data and to output the data voltage to the display panel. A gate shift amount when the compensation image is applied is substantially the same as a gate shift amount immediately before the compensation image is applied.