公开(公告)号：US20210118354A1

公开(公告)日：2021-04-22

申请号：US16893326

申请日：2020-06-04

Applicant: Samsung Display Co., Ltd.

Inventor： Kuk-Hwan AHN ,  HongSoo KIM ,  Junheyung JUNG ,  Youngwook YOO ,  Jungyu LEE ,  Hyunjun LIM ,  Byung Ki CHUN

IPC: G09G3/20

Abstract: A driving controller of a display device includes a driving frequency controller for receiving an image signal, determining a driving frequency based on the image signal, and outputting a masking enable signal corresponding to the driving frequency, and an image processor for converting the image signal into a data signal and outputting the data signal, wherein the image processor sequentially converts, based on the masking enable signal being at an active level, a part of bits of the image signal into the data signal corresponding to a plurality of dither patterns.

公开(公告)号：US20210043143A1

公开(公告)日：2021-02-11

申请号：US16931509

申请日：2020-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： HongSoo KIM ,  Sehyuk PARK ,  Sangan KWON ,  Jinyoung ROH ,  Sukhun LEE ,  Hyojin LEE ,  Junheyung JUNG

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, and a driving controller. The display panel displays an image based on input image data. The gate driver outputs a gate signal to the display panel. The data driver outputs a data voltage to the display panel. The driving controller selectively determines a driving mode of the display apparatus between one of a normal driving mode and a low frequency driving mode, and determines a driving frequency of the display panel based on the input image data. The driving controller includes a flicker value storage storing flicker values for grayscale values of the input image data and a data remapper converting the grayscale value of the input image data to decrease a size of a maximum frequency grayscale area corresponding to a maximum driving frequency in the low frequency driving mode.