公开(公告)号：US20230267882A1

公开(公告)日：2023-08-24

申请号：US17981804

申请日：2022-11-07

Applicant: Samsung Display Co., Ltd.

Inventor： GUNWOO YANG

IPC: G09G3/3233 ,  G09G3/00

CPC classification number: G09G3/3233 ,  G09G3/006 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/043 ,  G09G2330/12

Abstract: A pixel includes a first capacitor electrically connected between a first node and a second node, a second capacitor electrically connected between a first driving voltage line providing a first driving voltage and the first node, a light emitting diode including a first electrode and a second electrode electrically connected with a second driving voltage line providing a second driving voltage, first to fourth transistors, each including a first electrode, a second electrode, and a gate.

公开(公告)号：US20230122487A1

公开(公告)日：2023-04-20

申请号：US17859397

申请日：2022-07-07

Applicant: Samsung Display Co., Ltd.

Inventor： GUNWOO YANG

IPC: G09G3/20

Abstract: A pixel circuit may include a light-emitting element, a driving transistor which applies a driving current to the light-emitting element, a storage capacitor connected to a control electrode of the driving transistor, a data voltage-applying transistor which applies a data voltage to the storage capacitor, an emission transistor which connects the driving transistor to the light-emitting element in response to an emission signal, and a bias capacitor disposed between a first electrode of the driving transistor and a control electrode of the emission transistor.

公开(公告)号：US20250156007A1

公开(公告)日：2025-05-15

申请号：US18932034

申请日：2024-10-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： GUNWOO YANG ,  TAEHO KANG ,  SIWOO KIM ,  HAERYEONG PARK ,  KEUNHEE CHOI

IPC: G06F3/041 ,  G09G3/3225

Abstract: A display apparatus includes a display panel, a panel driver, a touch driving output layer of a touch panel and touch driver. The display driver outputs a panel driving signal to the display panel. The touch driver outputs a touch driving signal to the touch driving signal output layer. The display apparatus determines a driving frequency of the display panel according to the panel driving signal and synchronizes a frequency of the touch driving signal with the driving frequency.

公开(公告)号：US20170263177A1

公开(公告)日：2017-09-14

申请号：US15447748

申请日：2017-03-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： CHOLHO KIM ,  GUNWOO YANG ,  JIHOON YANG ,  YONGWOO LEE ,  HYUNYOUNG CHOI

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3677 ,  G09G2300/0809 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/021 ,  G11C19/28

Abstract: An N-th stage of a gate driver includes a first control circuit, a gate signal generating circuit, a carry signal generating circuit, a second control circuit, a third control circuit, and a holding circuit. The first control circuit controls a first signal in response to a first input signal. The gate signal generating circuit generates a gate signal in response to a clock signal and the first signal. The carry signal generating circuit generates a carry signal in response to the clock signal and the first signal. The second control circuit controls the first signal in response to a second input signal. The third control circuit generates a hold control signal in response to a third input signal having a frequency lower than the clock signal's. The holding circuit maintains levels of the first signal, the gate signal, and the carry signal in response to the hold control signal.

公开(公告)号：US20230005412A1

公开(公告)日：2023-01-05

申请号：US17931311

申请日：2022-09-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： CHOLHO KIM ,  GUNWOO YANG ,  HYUNYOUNG CHOI ,  JIHOON YANG ,  YONGWOO LEE

IPC: G09G3/20 ,  G11C19/28 ,  G09G3/36 ,  G09G3/3266

Abstract: A gate driver according to an exemplary embodiment of the present inventive concept includes a pull-up-pull-down circuit configured to pull up a gate signal to a high level of a first clock signal in a first duration and configured to pull down the gate signal to a low level of the first clock signal in a second duration, and a pull-down boosting circuit configured to output a first off voltage to the pull-up-pull-down part in the second duration in response to a second clock signal.

公开(公告)号：US20170249893A1

公开(公告)日：2017-08-31

申请号：US15412691

申请日：2017-01-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： CHOLHO KIM ,  GUNWOO YANG ,  HYUNYOUNG CHOI ,  JIHOON YANG ,  YONGWOO LEE

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0223 ,  G11C19/28

Abstract: A gate driver according to an exemplary embodiment of the present inventive concept includes a pull-up-pull-down circuit configured to pull up a gate signal to a high level of a first clock signal in a first duration and configured to pull down the gate signal to a low level of the first clock signal in a second duration, and a pull-down boosting circuit configured to output a first off voltage to the pull-up-pull-down part in the second duration in response to a second clock signal.