公开(公告)号：US20220020308A1

公开(公告)日：2022-01-20

申请号：US17492200

申请日：2021-10-01

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun-Sik YOON ,  Daeho HWANG ,  Jeong-Hyun KIM ,  Junpyo LEE ,  Sungsoo CHOI

IPC: G09G3/20

Abstract: A method of operating a display device includes: receiving image data at an input frame frequency; generating a modulated clock signal by modulating an input clock signal according to a modulation frequency; randomly selecting an output frame frequency within a data frequency selection range, the input frame frequency being within the data frequency selection range; determining an output start timing of the image data based on the output frame frequency; initiating, at the output start timing, output of the image data in synchronization with the modulated clock signal; and displaying an image based on the outputted image data.

公开(公告)号：US20210065648A1

公开(公告)日：2021-03-04

申请号：US16889666

申请日：2020-06-01

Applicant: Samsung Display Co., Ltd.

Inventor： Sungsoo CHOI ,  Song Yi HAN ,  Gwangsoo AHN

IPC: G09G3/36

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, and a power voltage generator. The power voltage generator provides a power voltage to at least one of the display panel, the gate driver, and the data driver. The power voltage generator generates a gate-on voltage, a gate-off voltage, and a gate clock signal toggling between the gate-on voltage and the gate-off voltage. The power voltage generator detects a voltage level of the gate clock signal before toggling the gate clock signal and after turning on the display apparatus and changes a supply pattern of the power voltage based on the gate clock signal having a first abnormal voltage level out of a first predetermined normal range.

公开(公告)号：US20190244556A1

公开(公告)日：2019-08-08

申请号：US16268066

申请日：2019-02-05

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun-Sik YOON ,  Daeho HWANG ,  Jeong-Hyun KIM ,  Junpyo LEE ,  Sungsoo CHOI

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/06 ,  G09G2310/08 ,  G09G2330/06

Abstract: A method of operating a display device includes: receiving image data at an input frame frequency; generating a modulated clock signal by modulating an input clock signal according to a modulation frequency; randomly selecting an output frame frequency within a data frequency selection range, the input frame frequency being within the data frequency selection range; determining an output start timing of the image data based on the output frame frequency; initiating, at the output start timing, output of the image data in synchronization with the modulated clock signal; and displaying an image based on the outputted image data.