公开(公告)号：US10482823B2

公开(公告)日：2019-11-19

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 ,  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：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：US10607547B2

公开(公告)日：2020-03-31

申请号：US16205499

申请日：2018-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Gunwoo Yang ,  Cholho Kim ,  Wonjun Lee

IPC: G09G3/3258 ,  G09G3/3233

Abstract: A display apparatus includes a voltage generator which generates an initial controlling signal which comprises a high voltage, a middle voltage and a low voltage, where the initial controlling signal swings from the middle voltage to the low voltage after a plurality of gate signals is simultaneously dropped from a high voltage to a low voltage thereof.

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：US09952475B2

公开(公告)日：2018-04-24

申请号：US15072849

申请日：2016-03-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo Kim ,  Gunwoo Yang

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134345

Abstract: A liquid crystal display which enhances an aperture ratio and stabilizes a storage voltage includes a first substrate, a second substrate opposing the first substrate, a liquid crystal layer between the first substrate and the second substrate, a gate line, a data line, a first sub-pixel electrode, and a second sub-pixel electrode on the first substrate, a first transistor connected to the gate line, the data line, and the first sub-pixel electrode, and a second transistor connected to the gate line, the data line, and the second sub-pixel electrode and including a source electrode, a drain electrode and at least one floating electrode between the source electrode and the drain 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：US09746723B2

公开(公告)日：2017-08-29

申请号：US14836601

申请日：2015-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Gunwoo Yang ,  Keunwoo Kim ,  Youngseung Kim ,  Sooyoung Park ,  Kichan Jeon ,  Munsoo Park

IPC: G02F1/1343 ,  G02F1/1368 ,  G02F1/1337

CPC classification number: G02F1/134309 ,  G02F1/133707 ,  G02F1/1368 ,  G02F2001/134345 ,  G02F2201/40

Abstract: A liquid crystal display (LCD) device improves an aperture ratio and stabilizing a storage voltage, including a first substrate; a second substrate opposed to the first substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line and a data line on the first substrate; a semiconductor layer overlapping the gate line; a first drain electrode overlapping the gate line and the semiconductor layer and connected to the data line; a first source electrode overlapping the gate line and the semiconductor layer; a first sub-pixel electrode connected to the first source electrode; a second drain electrode overlapping the gate line and the semiconductor layer and connected to the first drain electrode; a second source electrode overlapping the gate line and the semiconductor layer; and a second sub-pixel electrode connected to the second source electrode. The second source electrode overlaps the gate line more than the first source electrode does.