公开(公告)号：US11961474B2

公开(公告)日：2024-04-16

申请号：US18092400

申请日：2023-01-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Wook Yang ,  Dong Gyu Lee ,  Jae Hyeon Jeon

IPC: G09G3/3233 ,  G09G3/3266 ,  H01L27/12

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  H01L27/1255 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A display device is disclosed that includes a pixel. The pixel includes a first transistor connected between a second node and a third node and including a gate electrode connected to a first node. A first capacitor is formed between the first node and a fourth node. A second capacitor is formed between the fourth node and a first power line. A second transistor is connected between a data line and the fourth node. An eighth transistor is connected between the first power line and the second node. A ninth transistor is connected between the second node and a bias power line. A sixth transistor is connected between the third node and a fifth node. A light emitting element is electrically connected between the fifth node and a second power line. A gate electrode of the eighth transistor and a gate electrode of the sixth transistor are connected to different gate lines.

公开(公告)号：US11922866B1

公开(公告)日：2024-03-05

申请号：US18133593

申请日：2023-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Ha Sohn ,  Se Hyuk Park ,  Jin Wook Yang ,  Dong Gyu Lee ,  Jae Hyeon Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0278 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.

公开(公告)号：US11715406B2

公开(公告)日：2023-08-01

申请号：US17706519

申请日：2022-03-28

Applicant: Samsung Display Co., LTD.

Inventor： Se Hyuk Park ,  Jin Young Roh ,  Woo Mi Bae ,  Hae Kwan Seo ,  Young Ha Sohn ,  Jin Wook Yang

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2330/023

Abstract: A display device includes: a data driver for supplying a data signal to output lines; a demultiplexer connected to each of the output lines, the demultiplexer to supply the data signal supplied to each output line to a first data line and a second data line; first pixels disposed in a (2j−1)-th column and a (2k−1)-th row, the first pixels being connected to the first data line, wherein j and k are positive integers; second pixels disposed in the (2j−1)-th column and a (2k)-th row, the second pixels being connected to the second data line; third pixels disposed in a (2j)-th column and the (2k−1)-th row, the third pixels being connected to the first data line; and fourth pixels disposed in the (2j)-th column and the (2k)-th row, the fourth pixels being connected to the second data line.

公开(公告)号：US11580937B2

公开(公告)日：2023-02-14

申请号：US17749580

申请日：2022-05-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Gyu Lee ,  Ji Hye Kim ,  Jin Wook Yang ,  Jae Hyeon Jeon

IPC: G09G5/36 ,  G09G3/20

Abstract: An image display system includes a graphic processor which generates an image signal, a control signal, and a variable frequency signal; and a display device which displays an image at a frame frequency corresponding to the variable frequency signal from the graphic processor. The display device includes pixels connected to emission control lines, data lines, and scan lines; a controller which provides reference data including information on reference cycles, which are cycles in which an emission control start signal is output, to the graphic processor, outputs the emission control start signal based on the control signal, and adjusting an output timing of a scan start signal based on the variable frequency signal; an emission driver which supplies emission control signals to the emission control lines based on the emission control start signal; and a scan driver which supplies scan signals to the scan lines based on the scan start signal.

公开(公告)号：US11094263B2

公开(公告)日：2021-08-17

申请号：US16890328

申请日：2020-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Yu Chol Kim ,  Jin Wook Yang ,  Ji Hye Kim ,  Young Ha Sohn ,  Jae Hyeon Jeon

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display device driving method includes: providing a reference voltage for compensating a threshold voltage of a driving transistor in a pixel; and providing a data signal to the pixel, wherein providing the reference voltage, and providing the data signal to the pixel are performed in a first frame period, and a second frame period successive to the first frame period, wherein the display device driving method further comprises providing a compensation signal generated by comparing a data signal with a reference voltage provided in a previous frame period of each frame period to the pixel before providing the reference voltage is ended.

公开(公告)号：US12094422B2

公开(公告)日：2024-09-17

申请号：US18145606

申请日：2022-12-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Kwan Seo ,  Jin Young Roh ,  Young Ha Sohn ,  Jin Wook Yang

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

CPC classification number: G09G3/3275 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/043

Abstract: A display device includes a display panel including a first pixel column in which first and third color pixels are alternately disposed, a second pixel column in which second color pixels are disposed, a third pixel column in which the third and first color pixels are alternately disposed, and a fourth pixel column in which the second color pixels are disposed. The display device further includes a scan driver applying a scan signal to scan lines, a data driver including a first source channel supplying a first color data signal and a second color data signal to a first data line, and a second source channel supplying the second color data signal and a third color data signal to a second data line, and a demultiplexer successively selecting the first and second sub-data lines during a period in which the scan signal is supplied to each scan line.

公开(公告)号：US20230290313A1

公开(公告)日：2023-09-14

申请号：US18145606

申请日：2022-12-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Kwan Seo ,  Jin Young Roh ,  Young Ha Sohn ,  Jin Wook Yang

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

CPC classification number: G09G3/3275 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2310/0297 ,  G09G2300/0452 ,  G09G2320/043

Abstract: A display device includes a display panel including a first pixel column in which first and third color pixels are alternately disposed, a second pixel column in which second color pixels are disposed, a third pixel column in which the third and first color pixels are alternately disposed, and a fourth pixel column in which the second color pixels are disposed. The display device further includes a scan driver applying a scan signal to scan lines, a data driver including a first source channel supplying a first color data signal and a second color data signal to a first data line, and a second source channel supplying the second color data signal and a third color data signal to a second data line, and a demultiplexer successively selecting the first and second sub-data lines during a period in which the scan signal is supplied to each scan line.

公开(公告)号：US11640794B2

公开(公告)日：2023-05-02

申请号：US17680612

申请日：2022-02-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Wook Yang ,  Ji Hye Kim ,  Young Ha Sohn ,  Dong Gyu Lee ,  Jae Hyeon Jeon

IPC: G09G3/3266 ,  G09G3/3233

Abstract: A display device includes a first transistor including a first electrode connected to a first power line, a second electrode connected to a third node, and a gate electrode connected to a first node, a first capacitor formed between the first power line and a second node, a second capacitor formed between the first node and the second node, an emission transistor including a first electrode connected to the third node, a second electrode, and a gate electrode connected to an emission control line, and a light emitting element connected to the second electrode of the emission transistor and a second power line.

公开(公告)号：US11462156B2

公开(公告)日：2022-10-04

申请号：US17000404

申请日：2020-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Wook Yang ,  Yu Chol Kim ,  Ji Hye Kim ,  Young Ha Sohn ,  Jae Hyeon Jeon

IPC: G09G3/3208

Abstract: The present disclosure relates to a display device and a method of driving the same. The display device includes a substrate, a display panel including a first display area including first pixels, a second display area including second pixels, and a third display area disposed between the first and second display areas and including third pixels, and a component disposed between the substrate and the display panel so as to overlap the second display area. Transmittance of the second display area is higher than transmittance of the first display area and transmittance of the third display area, and the third pixels are controlled such that a luminance gradually changes according to a distance from the second display area.

公开(公告)号：US20210280141A1

公开(公告)日：2021-09-09

申请号：US17326299

申请日：2021-05-20

Applicant: Samsung Display Co., Ltd.

Inventor： Eun Gyeong CHOE ,  Jin Wook Yang

IPC: G09G3/3291 ,  G09G3/3258

Abstract: A display device including a first scan line, a first dot and a second dot each including first to fourth pixels sequentially connected to the first scan line, a data driver to supply data voltages to first to fourth output lines, and a switch unit to selectively connect the first to fourth output lines to the first to fourth pixels of the first dot or the second dot, in response to first and second control signals, and including first to fourth switches to selectively connect the first to fourth output lines to the first to fourth pixels of the first dot, respectively, in response to the first control signal, and fifth to eighth switches to selectively connect the first to fourth output lines to the third, the second, the first, and the fourth pixels of the second dot, respectively, in response to the second control signal.