公开(公告)号：US20210295768A1

公开(公告)日：2021-09-23

申请号：US17339808

申请日：2021-06-04

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu KANG ,  Sung Hwan KIM ,  Soo Hee OH ,  Dong Sun LEE ,  Sang Moo CHOI

IPC: G09G3/32

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：US20200211467A1

公开(公告)日：2020-07-02

申请号：US16708344

申请日：2019-12-09

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu KANG ,  Sung Hwan KIM ,  Soo Hee OH ,  Dong Sun LEE ,  Sang Moo CHOI

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

Abstract: A stage of a scan driver for a display device, the stage includes: an output unit to output to an output terminal either a signal supplied to a first clock terminal corresponding to voltage of a first driving node or a voltage of a second power source corresponding to voltage of a second driving node; an input unit to control the voltage of the first driving node corresponding to signals supplied to a first input terminal, and the input unit to control the voltage of the second driving node corresponding to signals supplied to a second input terminal and a second clock terminal; a first signal processor including a second capacitor coupled between the second driving node and a second node, the first signal processor to control the voltage of the second driving node corresponding to signals supplied to a third clock terminal and a fourth clock terminal, the first signal processor to control a potential difference between both ends of the second capacitor corresponding to the signal supplied to the fourth clock terminal; and a second signal processor to control the voltage of the first driving node corresponding to the signal supplied to the first clock terminal.

公开(公告)号：US20200175913A1

公开(公告)日：2020-06-04

申请号：US16697690

申请日：2019-11-27

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu KANG ,  Sung Hwan KIM ,  Soo Hee OH ,  Dong Sun LEE ,  Sang Moo CHOI

IPC: G09G3/32

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：US20240224771A1

公开(公告)日：2024-07-04

申请号：US18237110

申请日：2023-08-23

Applicant: Samsung Display Co., LTD.

Inventor： Su Jin KIM ,  Ji Hyun KA ,  Sung Chan HWANG ,  Chul Kyu KANG ,  Dong Hyun KIM ,  Min Joo KIM ,  Seon Kyoon MOK

IPC: H10K71/00 ,  H10K59/121 ,  H10K59/131

CPC classification number: H10K71/861 ,  H10K59/1213 ,  H10K59/1216 ,  H10K59/131

Abstract: A display device includes a pixel electrode; a pixel circuit connected to the pixel electrode; a repair line overlapping at least a part of the pixel circuit; and a shielding line overlapping at least a part of the repair line and connected to a constant power source.

公开(公告)号：US20240221669A1

公开(公告)日：2024-07-04

申请号：US18608895

申请日：2024-03-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yong Jae KIM ,  Jin JEON ,  Chul Kyu KANG

IPC: G09G3/3233 ,  G09G3/3266 ,  H10K50/805 ,  H10K59/131

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  H10K50/805 ,  H10K59/131 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/0264 ,  G09G2340/0435

Abstract: An organic light emitting display device driven at a first driving frequency or a second driving frequency lower than the first driving frequency includes pixels coupled to first scan lines, second scan lines, and data lines, a first scan driver configured to supply scan signals to the first scan lines during a first period and a second period in one frame period, when the organic light emitting display device is driven at the second driving frequency, a second scan driver configured to supply scan signals to the second scan lines during the first period, when the organic light emitting display device is driven at the second driving frequency, and a data driver configured to supply a data signal to the data lines during the first period.

公开(公告)号：US20230395032A1

公开(公告)日：2023-12-07

申请号：US18453290

申请日：2023-08-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Chul Kyu KANG ,  Yong Sung PARK ,  Jin Woo PARK ,  Dong Sun LEE

IPC: G09G3/3266 ,  G09G3/3291 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G09G3/3291 ,  G11C19/28 ,  G09G2310/0202 ,  G09G2310/0286

Abstract: A circuit stage including a first transistor including a first electrode and a gate electrode, the first electrode being coupled to a first input terminal and the gate electrode being coupled to a second input terminal configured to receive a first clock signal, an output circuit coupled to the second input terminal and a second power input terminal, an input circuit coupled to a second electrode of the first transistor and to a third input terminal, the third input terminal being configured to receive a first control clock signal, the input circuit being configured to control voltages of the second node and a third node, a first driving circuit coupled to a first power input terminal and to a fourth input terminal configured to receive a second control clock signal, and a second driving circuit coupled to the fourth input terminal and the third node.

公开(公告)号：US20200211474A1

公开(公告)日：2020-07-02

申请号：US16725288

申请日：2019-12-23

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

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：US20190392769A1

公开(公告)日：2019-12-26

申请号：US16450719

申请日：2019-06-24

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Sun LEE ,  Sang Moo CHOI ,  Chul Kyu KANG ,  Soo Hee OH

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

Abstract: An organic light emitting display device includes: a pixel unit including a plurality of pixels; a scan driver for sequentially supplying a scan signal to the pixels through scan lines, wherein the scan signal includes k (k is a natural number) bias pulses for applying a bias voltage and one write pulse for applying a data voltage; a data corrector for correcting a first grayscale value that is a grayscale value of a (j, i) pixel (i and j are natural numbers) among the pixels, based on a difference between the first grayscale value and a second grayscale value that is a grayscale value of a (j+2k, i) pixel among the pixels; and a data driver for supplying a data voltage corresponding to each of the grayscale values to the pixel unit through a plurality of data lines.

公开(公告)号：US20240274068A1

公开(公告)日：2024-08-15

申请号：US18642778

申请日：2024-04-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Chul Kyu KANG ,  Sung Hwan KIM ,  Soo Hee OH ,  Dong Sun LEE ,  Sang Moo CHOI

IPC: 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：US20220085136A1

公开(公告)日：2022-03-17

申请号：US17532253

申请日：2021-11-22

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.