公开(公告)号：US20220028319A1

公开(公告)日：2022-01-27

申请号：US17380431

申请日：2021-07-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JONGMAN KIM ,  Hyungkeun Park

IPC: G09G3/20

Abstract: A display device includes a display panel including a plurality of pixels, a data driver configured to provide data signals to the plurality of pixels, a scan driver configured to provide scan signals to the plurality of pixels, and a controller configured to control the data driver and the scan driver. The controller includes a volatile age memory configured to store accumulated degradation amounts for the plurality of pixels, and an internal age memory configured to store backup accumulated degradation amounts generated based on the accumulated degradation amounts. The controller is further configured to compensate input image data by selectively using the accumulated degradation amounts of the volatile age memory or the backup accumulated degradation amounts of the internal age memory.

公开(公告)号：US20240177655A1

公开(公告)日：2024-05-30

申请号：US18367483

申请日：2023-09-13

Applicant: Samsung Display Co., Ltd.

Inventor： JONGMAN KIM ,  SANGMYEON HAN ,  BYOUNGKWAN AN ,  SEUNGHO PARK ,  NAMJAE LIM ,  JOONHYEOK JEON

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2320/0257 ,  G09G2340/00 ,  G09G2350/00

Abstract: A display driver includes a nonvolatile memory, an encoder, a decoder, and a compensator. The nonvolatile memory is configured to store accumulated stress data and compensation data corresponding to the accumulated stress data. The encoder is configured to encode the compensation data received from the nonvolatile memory to generate encoded compensation data. The decoder is configured to decode the encoded compensation data to generate decoded compensation data. The compensator is configured to process input image data based on the decoded compensation data and generate accumulated stress data.

公开(公告)号：US20190122627A1

公开(公告)日：2019-04-25

申请号：US16152815

申请日：2018-10-05

Applicant: Samsung Display Co., Ltd.

Inventor： JONGMAN KIM ,  DONG-HYUN YEO ,  WOOJUNG JUNG ,  YONG-BUM KIM ,  YONGHO SUNG ,  BYUNGKIL JEON

IPC: G09G3/36

Abstract: A display device includes a display panel and a display panel driver. The display panel driver includes an over-driver which selects an over-driving data from an over-driving pattern which moves to a predetermined direction, generates a reference line based on a first polynomial expression generated based on the over-driving data, and generates an over-driving data lookup table by moving the reference line, a data driver which outputs a data signal generated based on the over-driving data lookup table to the data line of the display panel, and a gate driver which outputs a gate signal to the gate line of the display panel.