公开(公告)号：US20230230548A1

公开(公告)日：2023-07-20

申请号：US18119299

申请日：2023-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： JAEHOON LEE ,  DEOKHO KANG ,  JONG WOOK KIM ,  YOUNGWOON CHOI

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display device includes a display panel including a plurality of pixels, an image data corrector configured to generate a corrected image data by adjusting an image data and a data driver providing data signals to the plurality of pixels based on the corrected image data. The image data corrector divides the display panel into a plurality of unit areas, and adjust the image data for a unit area among the plurality of unit areas by using a full image load for the entire display panel, a first image load for the unit area, and a second image load for peripheral unit areas surrounding the unit area among the plurality of unit areas.

公开(公告)号：US20230162678A1

公开(公告)日：2023-05-25

申请号：US17937543

申请日：2022-10-03

Applicant: SAMSUNG DISPLAY CO, LTD.

Inventor： NAMJAE LIM ,  SUNGJAE PARK ,  SEUNGHWAN PARK ,  YOUNGWOON CHOI ,  JINHO LEE

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/0666 ,  G09G2320/0233 ,  G09G2300/0842 ,  G09G2300/0861

Abstract: A display device includes a display panel including a plurality of pixels, a current sensor that senses a sensing current that flows through the pixels, and a data compensator. The data compensator calculates a target current from an image frame of input image data using a current deviation for each position of the image frame and a current contribution ratio for each color of the image frame, and that generates a scale factor by comparing the target current and the sensing current. The display device further includes a timing controller that generates output image data by scaling grayscale values of the input image data using the scale factor; and a data driver that provides a data signal corresponding to the output image data to the pixels.

公开(公告)号：US20230154382A1

公开(公告)日：2023-05-18

申请号：US17990130

申请日：2022-11-18

Applicant: Samsung Display Co., Ltd.

Inventor： SUNGJAE PARK ,  SEUNGHWAN PARK ,  NAMJAE LIM ,  YOUNGWOON CHOI ,  SEUNGHO PARK ,  JINHO LEE

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2310/0275 ,  G09G2300/0819 ,  G09G2330/021 ,  G09G2320/0626 ,  G09G2310/0232 ,  G09G2330/04

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The driving controller divides input image data into a plurality of partial image data corresponding to a plurality of display areas of the display panel, calculates local loads corresponding to the plurality of partial image data, determines a scale factor based on the local loads, and applies the scale factor to the input image data to generate a data signal. The data driver converts the data signal to a data voltage and outputs the data voltage to the display panel. The scale factor for a center display area corresponding to a center of the display panel among the plurality of display areas is determined differently from the scale factor for an edge display area corresponding to an edge of the display panel among the plurality of display areas.