公开(公告)号：US11443681B2

公开(公告)日：2022-09-13

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 ,  G09G3/3266 ,  G11C19/28 ,  G09G3/36 ,  G09G3/296

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：US20230232660A1

公开(公告)日：2023-07-20

申请号：US17891986

申请日：2022-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Kyongjun Kim ,  Yongbin Kim ,  Sohyun Shin ,  Gunwoo Yang ,  Dongjin Lee ,  Heejin Jeon ,  Hyunyoung Choi

IPC: H01L27/32 ,  G09G3/3233

CPC classification number: H01L27/326 ,  H01L27/3234 ,  H01L27/3272 ,  G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0819 ,  G09G2300/0426 ,  G09G2320/0242 ,  G09G2320/0233

Abstract: A display apparatus includes a first pixel circuit and a second pixel circuit. The first pixel circuit includes a first driving transistor and a first storage capacitor having a first lower storage electrode connected to a gate of the first driving transistor and a first upper storage electrode overlapping the first lower storage electrode. The second pixel circuit includes a second driving transistor and a second storage capacitor including a second lower storage electrode connected to a gate of the second driving transistor and a second upper storage electrode overlapping the second lower storage electrode. A second overlapping area of the second lower storage electrode and the second upper storage electrode is about twice to about four times a first overlapping area of the first lower storage electrode and the first upper storage electrode.

公开(公告)号：US10811483B2

公开(公告)日：2020-10-20

申请号：US16168669

申请日：2018-10-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hagyeong Song ,  Hyeondo Park ,  Donghyun Lee ,  Hyunyoung Choi

IPC: H01L27/32 ,  H01L51/00 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233

Abstract: A display device includes: a substrate having a first area, a second area, and a bending portion between the first area and the second area; a first conductive line extending to the first area, the bending portion, and the second area along a first direction on a plane; and a second conductive line including a first contact portion and a first connection portion, the first contact portion being connected to the first conductive line at the first area and the first connection portion overlapping the first conductive line on a plane and extending along the first direction to the first area, the bending portion, and the second area, wherein the second conductive line further includes a corrosion retardation portion extending from the first contact portion.

公开(公告)号：US20250087156A1

公开(公告)日：2025-03-13

申请号：US18776356

申请日：2024-07-18

Applicant: Samsung Display Co., LTD.

Inventor： Jiyoung Lee ,  Sohae Kim ,  Jisong Chae ,  Sanggu Lee ,  Yongwoo Lee ,  Hyunguk Cho ,  Hyunyoung Choi

IPC: G09G3/3233

Abstract: A pixel includes a first transistor configured to output, to an output terminal, a driving current corresponding to an amplitude of a data voltage, a second transistor connected between a gate of the first transistor and a data line, a third transistor connected between the first transistor and the second transistor, a fourth transistor connected between the first transistor and a driving voltage line, a light-emitting diode connected to the first transistor, a first capacitor connected between the gate of the first transistor and the third transistor, and a second capacitor connected between the third transistor and the driving voltage line.

公开(公告)号：US10255845B2

公开(公告)日：2019-04-09

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

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：US10185189B2

公开(公告)日：2019-01-22

申请号：US15055323

申请日：2016-02-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jihoon Yang ,  Myeongeon Kim ,  Cholho Kim ,  Keumdong Jung ,  Hyunyoung Choi

IPC: G02F1/1343 ,  G02F1/1362 ,  H01L27/12 ,  G02F1/1339

Abstract: A display device includes: a gate transmission wiring; a gate insulating layer disposed on the gate transmission wiring; and a pixel electrode and a data transmission wiring that are disposed on the gate insulating layer. When a gate signal voltage is applied to the gate transmission wiring, the gate transmission wiring may serve as a gate electrode that activates a semiconductor layer. In addition, when such a gate signal voltage is not applied thereto, the gate transmission wiring may form an electric field by a voltage difference between the gate transmission wiring and the pixel electrode, to thereby control a liquid crystal layer.

公开(公告)号：US10108061B2

公开(公告)日：2018-10-23

申请号：US15134869

申请日：2016-04-21

Applicant: Samsung Display Co., Ltd.

Inventor： Keumdong Jung ,  Daecheol Kim ,  Seongyoung Lee ,  Cholho Kim ,  Jihoon Yang ,  Hyunyoung Choi

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1368 ,  H01L27/12 ,  H01L29/417 ,  H01L29/94 ,  H01L31/10

Abstract: A thin-film transistor (TFT) array substrate includes a transistor disposed on a base substrate and a storage capacitor electrically connected to the transistor. The transistor includes a gate electrode, an active layer electrically insulated from the gate electrode, the active layer including a semiconductor material, and a first electrode and a second electrode disposed to be spaced apart from each other on the active layer. The storage capacitor includes a lower electrode including a light inflow path, and an upper electrode disposed to face the lower electrode and electrically connected to the second electrode.