公开(公告)号：US20240346999A1

公开(公告)日：2024-10-17

申请号：US18595433

申请日：2024-03-05

Applicant: Samsung Display Co., Ltd.

Inventor： HYOJUNG KIM ,  YOO-YOUNG PARK ,  JIMYOUNG SEO ,  JI-HYEON SON ,  SEUNGBO SHIM ,  JEONG YONG LEE ,  Hyesun SUNG

IPC: G09G3/3225 ,  G09G3/3266

CPC classification number: G09G3/3225 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/045

Abstract: A display device is disclosed that includes a pixel circuit, a light emitting element, and a driving circuit. The pixel circuit includes a plurality of pixel transistors. The light emitting element is electrically connected to the pixel circuit. The driving circuit is configured to provide a prescribed signal to the pixel circuit and includes a plurality of driving transistors. A gate signal is applied to a gate of at least one transistor among the plurality of pixel transistors and the plurality of driving transistors. The gate signal includes a first interval in which a DC signal is applied and a second interval in which an AC signal is applied. The second interval includes a first sub-interval in which a first voltage is applied and a second sub-interval in which a second voltage different from the first voltage is applied. The first voltage is a negative voltage and the second voltage is a positive voltage or about 0 V.

公开(公告)号：US20170345386A1

公开(公告)日：2017-11-30

申请号：US15598459

申请日：2017-05-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JIMYOUNG SEO ,  KYOUNGWON LEE ,  SILYI BANG ,  KWAN-YOUNG OH ,  JUNGHWAN CHO ,  SANGSU HAN ,  SANGMI KIM ,  JANG-HYUN YEO

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3611 ,  G09G2370/08

Abstract: A display apparatus includes a display panel to display an image, a first frame counter to count a first number of frames during a first duration and to be reset when the first number reaches a first reference number, a second frame counter to count a second number of the frames during a second duration and to be reset when the second number reaches a second reference number, wherein the second duration occurs after and is shorter than the first duration, a level counter to hold a count value at a first count value during the first duration, to change the count value when the first frame counter is reset, and to change the count value when the second frame counter is reset, and a common voltage generator to control a level of a common voltage to correspond to the count value and to output the common voltage.

公开(公告)号：US20180061352A1

公开(公告)日：2018-03-01

申请号：US15691190

申请日：2017-08-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HONGKYU KIM ,  POYUN PARK ,  YUJIN KIM ,  JIMYOUNG SEO ,  GWANGSOO AHN

IPC: G09G3/36

Abstract: A method of driving a display device includes receiving a reference clock signal and frequency determination data to determine a pixel driving clock frequency and generate a pixel driving clock signal, generating and outputting a gate driving clock signal according to the pixel driving clock frequency, and outputting a driving voltage according to the pixel driving clock frequency. The driving voltage increases as the pixel driving clock frequency increases.