公开(公告)号：US11580319B2

公开(公告)日：2023-02-14

申请号：US16884813

申请日：2020-05-27

Applicant: Samsung Display Co., Ltd.

Inventor： Yoonjung Chai ,  Wonjun Lee ,  Cholho Kim ,  Hongbo Kim

IPC: G06K7/10 ,  G06F3/041

Abstract: A display apparatus includes a sensor layer including sensors; a pixel layer disposed on the sensor layer and including pixel areas and pixels in the pixel areas; and an opaque layer disposed between the sensor layer and the pixel layer and having holes corresponding to light-transmitting areas of pixel areas in which pixels that emit light of a specific color are disposed.

公开(公告)号：US11468843B2

公开(公告)日：2022-10-11

申请号：US16681726

申请日：2019-11-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wonjun Lee ,  Gichang Lee ,  Cholho Kim ,  Gunwoo Yang

IPC: G09G3/3266 ,  G09G3/3291 ,  G09G3/20 ,  G09G3/3233

Abstract: A light emitting display device includes: a first switch connected between a data line and a first node and including a gate connected to a first scan line; a second switch connected between a first driving power line and a second node and including a gate electrode connected to the first node; a first capacitor connected between the first node and the second node; a light emitting element connected between the second node and a second driving power line; a scan driver applying a first A-scan signal and a first B-scan signal during different times to the first scan line; a data driver applying a first initialization signal and a data signal to the data line at different times; and a power supply portion applying a first driving voltage, a second driving voltage, and a third driving voltage to the first driving power line at different times.

公开(公告)号：US20180011357A1

公开(公告)日：2018-01-11

申请号：US15642102

申请日：2017-07-05

Applicant: Samsung Display Co., Ltd.

Inventor： Gichang Lee ,  Yongjo Kim ,  Cholho Kim ,  Gunwoo Yang ,  Jihoon Yang ,  Yongwoo Lee

IPC: G02F1/1368 ,  G02F1/1362 ,  H01L29/417 ,  H01L29/786 ,  H01L27/12 ,  G02F1/136

CPC classification number: G02F1/1368 ,  G02F1/136227 ,  G02F1/136286 ,  G02F2001/13606 ,  G02F2201/122 ,  G02F2201/124 ,  G02F2201/40 ,  G02F2202/103 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/41733 ,  H01L29/78669

Abstract: A liquid-crystal display including: a gate line extending in a first direction; a gate electrode protruding from the gate line; a gate insulating layer arranged on the gate electrode; an active layer arranged on the gate insulating layer while being insulated from the gate electrode; a data line arranged on the active layer and extending in a second direction; a source electrode protruding from the data line, having a portion overlapping the gate electrode on a plane, and including a plurality of source electrode branches that are separate from each other; a drain electrode being separate from the source electrode, and including a plurality of drain electrode branches, each being arranged between two of the plurality of source electrode branches, and a drain electrode connecting part connecting the plurality of drain electrode branches; a pixel electrode defining a pixel region; a liquid-crystal layer arranged on the pixel electrode.

公开(公告)号：US12067942B2

公开(公告)日：2024-08-20

申请号：US18085260

申请日：2022-12-20

Applicant: Samsung Display Co., Ltd.

Inventor： Wonjun Lee ,  Cholho Kim ,  Mihyeon Jo

IPC: G09G3/3233 ,  G06V40/13

CPC classification number: G09G3/3233 ,  G06V40/1318 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2354/00

Abstract: A display device includes a plurality of pixels, each of which includes a light emitting element and a pixel driving circuit and a plurality of sensors, each of which includes a light receiving element and a sensor driving circuit. The sensor driving circuit includes a first reset transistor, a second reset transistor, a sensing capacitor, an amplification transistor, and an output transistor. The first reset transistor includes a first electrode receiving a reset voltage, a second electrode connected to a first sensing node, and a third electrode receiving a reset control signal. The second reset transistor includes a first electrode receiving the reset voltage, a second electrode connected to a second sensing node, and a third electrode receiving the reset control signal. The sensing capacitor is positioned between the first sensing node and the second sensing node.

公开(公告)号：US20240071310A1

公开(公告)日：2024-02-29

申请号：US18200692

申请日：2023-05-23

Applicant: Samsung Display Co., Ltd.

Inventor： WONJUN LEE ,  Cholho Kim

IPC: G09G3/3258 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/3291

Abstract: A pixel including: a light emitting element; a first transistor including a first electrode, a second electrode electrically connected to the light emitting element, a gate electrode, and a body electrode; a second transistor connected between a first driving voltage line for receiving a first driving voltage and the first electrode of the first transistor and including a gate electrode for receiving a first emission control signal; a first circuit which provides a reference voltage to the gate electrode of the first transistor in response to a first scan signal and a second scan signal; and



a second circuit which provides an initialization voltage to the body electrode of the first transistor in response to the first scan signal, the second scan signal, and a second emission control signal.

公开(公告)号：US10656491B2

公开(公告)日：2020-05-19

申请号：US15642102

申请日：2017-07-05

Applicant: Samsung Display Co., Ltd.

Inventor： Gichang Lee ,  Yongjo Kim ,  Cholho Kim ,  Gunwoo Yang ,  Jihoon Yang ,  Yongwoo Lee

IPC: G02F1/1368 ,  G02F1/1362 ,  H01L29/417 ,  H01L27/12 ,  H01L29/786 ,  G02F1/136

Abstract: A liquid-crystal display including: a gate line extending in a first direction; a gate electrode protruding from the gate line; a gate insulating layer arranged on the gate electrode; an active layer arranged on the gate insulating layer while being insulated from the gate electrode; a data line arranged on the active layer and extending in a second direction; a source electrode protruding from the data line, having a portion overlapping the gate electrode on a plane, and including a plurality of source electrode branches that are separate from each other; a drain electrode being separate from the source electrode, and including a plurality of drain electrode branches, each being arranged between two of the plurality of source electrode branches, and a drain electrode connecting part connecting the plurality of drain electrode branches; a pixel electrode defining a pixel region; a liquid-crystal layer arranged on the pixel electrode.

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：US20200082764A1

公开(公告)日：2020-03-12

申请号：US16681726

申请日：2019-11-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wonjun Lee ,  Gichang Lee ,  Cholho Kim ,  Gunwoo Yang

IPC: G09G3/3266 ,  G09G3/3291 ,  G09G3/3233 ,  G09G3/20

Abstract: A light emitting display device includes: a first switch connected between a data line and a first node and including a gate connected to a first scan line; a second switch connected between a first driving power line and a second node and including a gate electrode connected to the first node; a first capacitor connected between the first node and the second node; a light emitting element connected between the second node and a second driving power line; a scan driver applying a first A-scan signal and a first B-scan signal during different times to the first scan line; a data driver applying a first initialization signal and a data signal to the data line at different times; and a power supply portion applying a first driving voltage, a second driving voltage, and a third driving voltage to the first driving power line at different times.

公开(公告)号：US20180182301A1

公开(公告)日：2018-06-28

申请号：US15852773

申请日：2017-12-22

Applicant: Samsung Display Co., Ltd.

Inventor： Wonjun Lee ,  Gichang Lee ,  Cholho Kim ,  Gunwoo Yang

IPC: G09G3/3266 ,  G09G3/3291

Abstract: A light emitting display device includes: a first switch connected between a data line and a first node and including a gate connected to a first scan line; a second switch connected between a first driving power line and a second node and including a gate electrode connected to the first node; a first capacitor connected between the first node and the second node; a light emitting element connected between the second node and a second driving power line; a scan driver applying a first A-scan signal and a first B-scan signal during different times to the first scan line; a data driver applying a first initialization signal and a data signal to the data line at different times; and a power supply portion applying a first driving voltage, a second driving voltage, and a third driving voltage to the first driving power line at different times.

公开(公告)号：US09875710B2

公开(公告)日：2018-01-23

申请号：US14966469

申请日：2015-12-11

Applicant: Samsung Display Co., Ltd.

Inventor： JongHee Kim ,  Cholho Kim ,  Jaekeun Lim ,  Youngwan Seo ,  Chongchul Chai

IPC: G09G3/36 ,  G09F1/04 ,  G11C19/28 ,  G06F1/04

CPC classification number: G09G3/3677 ,  G06F1/04 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2300/0413 ,  G09G2300/08 ,  G09G2310/0243 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2330/04 ,  G09G2330/08 ,  G11C19/287

Abstract: A gate driving circuit includes first and second driving stages respectively driving first and second gate lines of a display panel. The first driving stage includes output transistors, a first control transistor controlling an electric potential of a control node in response to a signal provided from the second driving stage through an input terminal before a first gate signal is output, and a second control transistor applying a first carry signal to the input electrode of the first control transistor while the first gate signal is output.