公开(公告)号：US11967269B2

公开(公告)日：2024-04-23

申请号：US17938031

申请日：2022-10-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Chul Kyu Kang ,  Sung Hwan Kim ,  Soo Hee Oh ,  Dong Sun Lee ,  Sang Moo Choi

IPC: G06F3/01 ,  G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/08

Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.

公开(公告)号：US11521561B2

公开(公告)日：2022-12-06

申请号：US17395979

申请日：2021-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim ,  Chul Kyu Kang ,  Hyun-Chol Bang ,  Soo Hee Oh ,  Dong Sun Lee

IPC: G09G3/3291 ,  G09G3/3266 ,  H01L27/32

Abstract: A display device includes: scan, control, and emission control signal lines, signals transmitted thereby being different from one another; data and driving voltage lines; a first transistor including a first gate electrode and first source and drain; a second transistor including a second gate electrode connected to a first scan line, a second source connected to a first data line, and a second drain connected to the first source; a light-emitting element; a control transistor including a control gate electrode connected to a first control line and between the driving voltage line and the first source or the light-emitting element and the first drain; and an emission control transistor in series between the light-emitting element and the control transistor, the control transistor and the first transistor, or the driving voltage line and the control transistor, and an emission control gate electrode connected to the emission control signal line.

公开(公告)号：US11195896B2

公开(公告)日：2021-12-07

申请号：US16433182

申请日：2019-06-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung Hwan Kim ,  Won Kyu Kwak ,  Sang Moo Choi ,  Ji-Hyun Ka ,  Chul Kyu Kang ,  Dong Wook Kim ,  Won Se Lee

IPC: H01L27/32 ,  H01L27/12 ,  H01L51/56

Abstract: An organic light emitting diode display includes a substrate, a semiconductor layer on the substrate, the semiconductor layer including a doped area and an undoped area, a first insulation layer that covers the semiconductor layer, a first conductor on the first insulation layer, a second insulation layer that covers the first conductor, a second conductor on the second insulation layer, a third insulation layer that covers the second conductor, and a third conductor on the third insulation layer, wherein, in the semiconductor layer that overlaps the first conductor, the doped area is between undoped areas.

公开(公告)号：US10928941B2

公开(公告)日：2021-02-23

申请号：US16299280

申请日：2019-03-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： In Nam Lee ,  Young Sik Kim ,  Hyun Jae Lee ,  Mi Young Kim ,  Sung Hwan Kim ,  Chang Bum Kim ,  Hyung Chul Kim

IPC: G06F3/041 ,  G06F3/044 ,  G01L1/14 ,  G01L1/22

Abstract: An input sensing device includes a first base layer, a plurality of first sensing electrodes, a plurality of second sensing electrodes, a plurality of third sensing electrodes, and a plurality of fourth sensing electrodes. The first sensing electrodes are arranged on the first base layer along a first direction. The second sensing electrodes are arranged on the first base layer in different rows from the first sensing electrodes. The third sensing electrodes are arranged on the second sensing electrodes along a second direction different from the first direction. The third sensing electrodes overlap the second sensing electrodes. The fourth sensing electrodes are arranged on the same layer as the third sensing electrodes and overlap the first sensing electrodes. A constant voltage is applied to the third sensing electrodes during a touch pressure sensing operation.

公开(公告)号：US10706784B2

公开(公告)日：2020-07-07

申请号：US15950516

申请日：2018-04-11

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim ,  Bon Yong Koo ,  Sun Kwang Kim ,  Chong Chul Chai

IPC: G09G3/3266 ,  G09G3/36

Abstract: A stage circuit includes an output circuit configured to supply, to a first output terminal, a first clock signal supplied to a second input terminal or to supply a voltage of a second power source supplied to a second power input terminal, in response to voltages of a first node and a second node, an input circuit configured to control voltages of a third node and a fourth node in response to a shift pulse or a gate start pulse supplied to a first input terminal, a third clock signal supplied to a third input terminal, and a fourth clock signal supplied to a fourth input terminal, and a first driver configured to control the voltages of the first and second nodes in response to both the third clock signal and the voltages of the third and fourth nodes.

公开(公告)号：US10380403B2

公开(公告)日：2019-08-13

申请号：US15968646

申请日：2018-05-01

Applicant: Samsung Display Co., Ltd.

Inventor： Gwang Bum Ko ,  Do Ik Kim ,  Seung Hwan Chung ,  Sung Hwan Kim

IPC: H01L27/00 ,  G06K9/00 ,  G02B19/00 ,  H01L31/0232 ,  H01L27/15 ,  H01L31/153 ,  F21V8/00 ,  H01L27/32 ,  G02B6/08 ,  G02B3/00 ,  G02B5/00

Abstract: A display device with a display panel including a display area and a plurality of pixels arranged in the display area, a photosensor layer including a sensing area overlapping the display area and a plurality of photosensors arranged in the sensing area, a light-guiding layer arranged between the display panel and the photosensor layer and configured to include a plurality of light-transmission holes corresponding to the photosensors, respectively, and a light-condensing layer arranged between the display panel and the photosensor layer to overlap the light-guiding layer.

公开(公告)号：US10283047B2

公开(公告)日：2019-05-07

申请号：US15662187

申请日：2017-07-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jeong Hwan Shin ,  Sung Hoon Bang ,  Sung Hwan Kim

IPC: G09G5/10 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device is configured to be driven in a period that is divided into a driving period and a sensing period. The display device includes pixels including driving transistors coupled to scan lines, data lines, and sensing lines, a scan driver configured to supply scan signals to the scan lines, a data driver configured to supply at least one of a reference voltage and data signals to the data lines, a sensing unit configured to sense the characteristic information via the sensing lines during the sensing period, control lines formed in parallel with the scan lines, a first switch coupled between an n-th scan line and an n-th control line, and a second switch coupled between the n-th control line and an (n+1)-th scan line and configured such that a turn-on period of the second switch does not overlap a turn-on period of the first switch.

公开(公告)号：US20190096335A1

公开(公告)日：2019-03-28

申请号：US16131858

申请日：2018-09-14

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim ,  Cheol Min Kim ,  Sung Hoon Bang

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3258 ,  G09G3/3233 ,  H01L27/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2330/00 ,  H01L27/3276

Abstract: An organic light emitting display device includes a driving transistor having one electrode connected with a node, and another electrode connected with an organic light emitting element, a first control transistor for receiving a first driving voltage through one electrode, and having another electrode connected with the node, a second control transistor for receiving a second driving voltage through one electrode, and having another electrode connected with the node, and a sensing transistor having one electrode connected between the another electrode of the driving transistor and the organic light emitting element, wherein the sensing transistor is turned on in a sensing period, the first control transistor is turned off in the sensing period, and the second control transistor is turned on in the sensing period.

公开(公告)号：US09978969B2

公开(公告)日：2018-05-22

申请号：US15632607

申请日：2017-06-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeong Hwan Shin ,  Sung Hwan Kim ,  Sung Hoon Bang

IPC: H03M1/12 ,  H01L51/50 ,  G02F1/1333 ,  G02F1/295 ,  G02F1/163 ,  H04N17/00 ,  H03M1/00 ,  H04N9/04

CPC classification number: H01L51/50 ,  G02F1/133365 ,  G02F1/295 ,  G02F2001/1635 ,  G09G2310/0264 ,  G09G2370/08 ,  H03M1/00 ,  H03M1/12 ,  H03M1/123 ,  H04N9/045 ,  H04N17/002

Abstract: A display device that may compensate for characteristic deviations among pixels and impact picture quality is provided. The display device includes a plurality of pixels, a plurality of sensing lines connected to the pixels, a sensing circuit configured to extract characteristic information of the pixels through the sensing lines. The sensing circuit includes a plurality of analog-to-digital converters (ADC) to convert the characteristic information into digital sensing data and to output the digital sensing data. A compensating circuit is configured to compare output values of the plurality of ADCs, to set a correction value, and to convert first data into second data based on the sensing data and the correction value. A data driver is configured to generate data signals corresponding to the second data and to output the data signals to the pixels.

公开(公告)号：US20180061316A1

公开(公告)日：2018-03-01

申请号：US15662187

申请日：2017-07-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jeong Hwan Shin ,  Sung Hoon Bang ,  Sung Hwan Kim

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2330/02

Abstract: A display device is configured to be driven in a period that is divided into a driving period and a sensing period. The display device includes pixels including driving transistors coupled to scan lines, data lines, and sensing lines, a scan driver configured to supply scan signals to the scan lines, a data driver configured to supply at least one of a reference voltage and data signals to the data lines, a sensing unit configured to sense the characteristic information via the sensing lines during the sensing period, control lines formed in parallel with the scan lines, a first switch coupled between an n-th scan line and an n-th control line, and a second switch coupled between the n-th control line and an (n+1)-th scan line and configured such that a turn-on period of the second switch does not overlap a turn-on period of the first switch.