公开(公告)号：US20240221592A1

公开(公告)日：2024-07-04

申请号：US18608900

申请日：2024-03-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Hyun KA ,  Ki Myeong EOM ,  Kyong Hwan OH ,  Hai Jung IN

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0278

Abstract: A display device includes: a first pixel connected to a first data line and a first scan line; a second pixel connected to the first data line and a second scan line; a first scan driver connected to a first scan start line and the first scan line; and a second scan driver connected to a second scan start line and the second scan line. In a first frame period, the second scan start line is to be suppled with a second scan start signal having a turn-on level, after a first period elapses after a first scan start signal having a turn-on level is supplied to the first scan start line. In a second frame period, a difference between a time at which the first scan start signal having the turn-on level is supplied and a time at which the second scan start signal having the turn-on level is supplied corresponds to a second period. The second period is shorter than the first period.

公开(公告)号：US20230326388A1

公开(公告)日：2023-10-12

申请号：US18086648

申请日：2022-12-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung IN ,  Min Ku LEE ,  Seung Hee LEE

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2330/021 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/0219

Abstract: A scan driver includes stages that include a first stage. A method for operating the scan driver includes providing a first clock signal, a first carry clock signal, a second carry clock signal, a first power source voltage, and a second power source voltage to the first stage to enable the first stage to provide a first scan signal to a first scan line. Throughout a portion of one frame, each of the first clock signal, the first carry clock signal, and the second carry clock signal is constant.

公开(公告)号：US20230274687A1

公开(公告)日：2023-08-31

申请号：US18084224

申请日：2022-12-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung IN

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2310/0267

Abstract: A scan driver is disclosed that includes a plurality of stages for supplying scan signals to scan lines. A first stage among the stages includes: a first sub-stage circuit for generating a first scan signal, based on an input signal, a first clock signal, a second clock signal, a first power source, and a second power source; and a first charge pump circuit for supplying a bias voltage to the first sub-stage circuit, based on a third power source. The first sub-stage circuit includes: a first driver for controlling voltages of a first node and a second node, based on the input signal, the first clock signal, the second clock signal, the first power source, and the second power source; a second driver for controlling a voltage of an output node, based on the voltage of the first node, the voltage of the second node, the first power source, and the second power source; and an output unit for outputting the first scan signal through a first output terminal, based on the voltage of the output node, the first power source, and the second power source.

公开(公告)号：US20220199030A1

公开(公告)日：2022-06-23

申请号：US17504364

申请日：2021-10-18

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung IN ,  Soon Gi KWON

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/36

Abstract: A scan driver and a driving method thereof, in which the scan driver includes a plurality of stages outputting a gate signal in response to clock signals supplied at a first frequency during a driving time of one frame, wherein the plurality of stages are supplied with the clock signals at a second frequency lower than the first frequency during a hold time of the one frame that is separate from the driving time of the one frame.

公开(公告)号：US20210134210A1

公开(公告)日：2021-05-06

申请号：US16897436

申请日：2020-06-10

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung IN ,  Ki Myeong EOM ,  Kyong Hwan OH

IPC: G09G3/20

Abstract: A display device including pixels connected to first scan lines, second scan lines, third scan lines, emission control lines, and data lines, a first scan driver for supplying a first scan signal to each of the first scan lines in a first period, a second scan driver for supplying a second scan signal to each of the second scan lines in the first period, a third scan driver for supplying a third scan signal to each of the third scan lines in the first period and a second period, an emission driver for supplying an emission control signal to the emission control lines in the first period and the second period, and a data driver for supplying a data signal to the data lines in the first period, in which a width of the second scan signal is greater than that of the first scan signal.

公开(公告)号：US20200265779A1

公开(公告)日：2020-08-20

申请号：US16793489

申请日：2020-02-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hai Jung IN

IPC: G09G3/3225

Abstract: A display device includes a display unit, a degradation compensator and a data driver. The display unit includes first and second pixels disposed in first and second regions, respectively. The degradation compensator generates a first compensated grayscale value by compensating a first grayscale value for the first pixel based on a first degradation curve and generates a second compensated grayscale value by compensating a second grayscale value for the second pixel based on a second degradation curve, where the first and second degradation curves define luminance reduction rates according to accumulated usage time of the first and second pixels, respectively. A data driver generates first and second data signals based on the first and second compensated grayscale values, respectively, and supplies the first and second data signals to the first and second pixels, respectively. A transmittance of the second region is greater than a transmittance of the first region.

公开(公告)号：US20200211466A1

公开(公告)日：2020-07-02

申请号：US16683193

申请日：2019-11-13

Applicant: Samsung Display Co. Ltd.

Inventor： Hai Jung IN

IPC: G09G3/3266

Abstract: A display device includes: a display panel having a plurality of pixels coupled to respective ones of first to nth (where n is a natural number of 1 or more) scan lines; a scan driver having a plurality of stages to supply a scan signal to the first to nth scan lines; and a timing controller to provide a clock signal to the scan driver, the timing controller controlling the scan driver by controlling an overdriving pulse of the clock signal. A first overdriving pulse of the clock signal corresponding to a first scan signal is different from an nth overdriving pulse of the clock signal corresponding to the nth scan signal.

公开(公告)号：US20200175249A1

公开(公告)日：2020-06-04

申请号：US16785617

申请日：2020-02-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Woo Kim ,  Jin Oh KWAG ,  Hai Jung IN ,  Won Jun CHOE

IPC: G06K9/00 ,  G06F21/32 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device including a display panel including a display area including a fingerprint sensing area and a plurality of pixels provided in the fingerprint sensing area; a sensor layer provided on one surface of the display panel overlapping the fingerprint sensing area, the sensor layer including a plurality of photo sensors; a panel driving circuit configured to output a data signal corresponding to image data to the display panel, corresponding to a first mode, and to output a driving signal to the display panel to allow the pixels to emit lights in a form corresponding to a predetermined light pattern, corresponding to a second mode; and a fingerprint detecting circuit configured to receive sensing signals from the photo sensors, corresponding to the second mode, the fingerprint detecting circuit detecting a fingerprint of a user, based on a sensing signal corresponding to the light pattern among the received sensing signals.

公开(公告)号：US20250037650A1

公开(公告)日：2025-01-30

申请号：US18915292

申请日：2024-10-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyong Hwan OH ,  Jin Tae JEONG ,  Ji Hyun KA ,  Won Kyu KWAK ,  Hyung Jun PARK ,  Chang Soo PYON ,  Ji Eun LEE ,  Hai Jung IN ,  Won Mi HWANG

IPC: G09G3/32 ,  G09G3/3233

Abstract: A display device includes a power supply to supply a first initialization power source to the pixels through a first initialization and to supply a second initialization power source to the pixels through a second power line.

公开(公告)号：US20240177789A1

公开(公告)日：2024-05-30

申请号：US18380800

申请日：2023-10-17

Applicant: Samsung Display Co., LTD.

Inventor： Il Hun JEONG ,  Hai Jung IN ,  Hye Sung KIM

IPC: G11C19/18 ,  G09G3/30

CPC classification number: G11C19/184 ,  G09G3/30 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A stage circuit includes an input unit connected to a first input terminal receiving a gate start pulse or a previous stage carry signal to control a voltage of a first node, a first output unit connected to a fourth input terminal to which a clock signal is input and supplying a scan signal to a first output terminal corresponding to a voltage of the first node and a second node, a second output unit connected to a third input terminal to which a second carry clock signal is input and supplying a carry signal to a second output terminal corresponding to the voltage of the first node and the second node, a first control unit connected to a first power input terminal to which first power is input and controlling a voltage of a third node, and a second control unit connected to a second power input terminal.