公开(公告)号：US12142217B2

公开(公告)日：2024-11-12

申请号：US18451371

申请日：2023-08-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Namjae Lim ,  Sungjae Park ,  Seunghwan Park ,  Youngwoon Choi ,  Jinho Lee

IPC: G09G3/3233 ,  G09G3/20

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：US11948492B2

公开(公告)日：2024-04-02

申请号：US17879350

申请日：2022-08-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jinho Lee ,  Sungjae Park ,  Seunghwan Park ,  Namjae Lim ,  Youngwoon Choi ,  Jong Wook Kim

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2310/027 ,  G09G2320/041

Abstract: A display device includes a display panel and a display panel driver. The display panel includes pixels. The display panel driver determines an average image load of input image data, determines an operation mode based on a grayscale value of the input image data and the average image load as a first operation mode or a second operation mode, applies a first scale factor to the input image data in the first operation mode, applies a second scale factor different from the first scale factor to the input image data in the second operation mode, and drives the display panel.

公开(公告)号：US09734778B2

公开(公告)日：2017-08-15

申请号：US14862372

申请日：2015-09-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Donghwa Shin ,  Jung-won Kim ,  Hyang-a Park ,  Jaesung Bae ,  Seunghwan Park ,  Jaehyung Cho

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3607 ,  G09G3/3648 ,  G09G2300/0443 ,  G09G2320/0233 ,  G09G2320/0673 ,  G09G2370/08

Abstract: A display apparatus includes a dot formed from a plurality of pixels. Each pixel displays a grayscale that is a sum of a first image displayed during an Nth frame and a second image displayed during an (N+1)th frame. N is an integer equal to or greater than 1. The dot includes first and second pixels having a first color, the first pixel displaying an image having a first grayscale based on a first gamma curve, and the second pixel displaying an image having a second grayscale based on a second gamma curve. Third and fourth pixels have a second color and display images having the first grayscale based on the first gamma curve. Fifth and sixth pixels have a third color and display images having the second grayscale based on the second gamma curve.