公开(公告)号：US10650772B2

公开(公告)日：2020-05-12

申请号：US16166915

申请日：2018-10-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan Kwon ,  Junpyo Lee ,  Kyunho Kim ,  Sungjin Kim ,  Yong-jin Shin ,  Neung-beom Lee ,  Kyung-hwa Lim ,  Myungbo Sim ,  Jinhyuk Jang

IPC: G09G3/36 ,  G02F1/1335

Abstract: A display device includes: a display panel comprising a display area configured to display an image, wherein the display area includes a measurement area including a plurality of sub-measurement areas, and each of the plurality of sub-measurement areas includes a plurality of pre-map areas; a data driver configured to provide data voltages to the display panel; a signal controller; and a common voltage generator configured to provide a common voltage to the display panel, wherein an afterimage reduction mode is driven to change a level of the common voltage provided by the common voltage generator when the determined pre-map areas are adjacent to each other.

公开(公告)号：US10453418B2

公开(公告)日：2019-10-22

申请号：US15824349

申请日：2017-11-28

Applicant: Samsung Display Co., Ltd.

Inventor： Han-Byul Lim ,  Seunghwan Moon ,  Myungbo Sim ,  Junpyo Lee

IPC: G09G5/02 ,  G09G3/36 ,  G09G3/32 ,  G09G3/3291 ,  G09G3/20

Abstract: A display apparatus includes a timing controller, a common voltage generator, a data driver, and a display panel. The timing controller determines a representative grayscale of each frame based on input image data and generates a common voltage control signal having a first digital value ratio (“DVR”) value corresponding to a first frame, a representative grayscale of the first frame being included in a first grayscale range. The common voltage generator generates a first common voltage based on the common voltage control signal. The data driver generates a data voltage based on the input image data. The display panel displays an image corresponding to the first frame based on the data voltage and the first common voltage.