公开(公告)号：US11984058B2

公开(公告)日：2024-05-14

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 ,  G09G3/3266

CPC classification number: G09G3/2092 ,  G09G3/3266 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/0219 ,  G09G2330/021

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：US11741903B2

公开(公告)日：2023-08-29

申请号：US17846276

申请日：2022-06-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In

IPC: G09G3/3266 ,  G09G3/3233

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2330/021

Abstract: A gate driver includes stages connected to clock signal lines to which clock signals are applied and a first gate power line to which a first gate power voltage is applied, and outputting the first gate power voltage as gate signals in response to the clock signals. The clock signals have a first frequency and the first gate power voltage has a first voltage level in a first period. The clock signals have a second frequency lower than the first frequency and the first gate power voltage has a second voltage level in a second period. One of the first and second voltage levels is a gate-on voltage level that turns on a transistor, and another of the first and second voltage levels is a gate-off voltage level that turns off the transistor.

公开(公告)号：US11694626B2

公开(公告)日：2023-07-04

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

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A scan driver and a driving method thereof, in which the scan driver includes a plurality of stages outputting an output 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：US11217149B2

公开(公告)日：2022-01-04

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：US11056043B2

公开(公告)日：2021-07-06

申请号：US16890319

申请日：2020-06-02

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Hwan Oh ,  Ji Hyun Ka ,  Ki Myeong Eom ,  Hai Jung In ,  Jin Jeon ,  Won Kyu Kwak ,  Hyun Lee ,  Hwan Soo Jang ,  Jin Tae Jeong

IPC: G09G3/20 ,  G09G3/3266

Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines.

公开(公告)号：US20210201764A1

公开(公告)日：2021-07-01

申请号：US17078088

申请日：2020-10-22

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

Abstract: A display device may include: pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a first scan signal to the first scan lines in a first period and a second period; a second scan driver to supply a second scan signal to the second scan lines in the first period without supplying the second scan signal to the second scan lines in the second period; an emission driver to supply an emission control signal to the emission control lines in the first period and the second period; a data driver configured to supply data signals to the data lines in the first period without supplying the second scan signal to the second scan lines in the second period; and 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：US12211446B2

公开(公告)日：2025-01-28

申请号：US17246328

申请日：2021-04-30

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Ji Hyun Ka ,  Tae Hoon Kwon ,  Ki Myeong Eom ,  Chae Han Hyun

IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3275

Abstract: A gate driver includes a stage configured to output a gate signal, the stage including an input part configured to control a voltage of a first node and a voltage of a second node based on signals supplied to a first input terminal and a second input terminal, an output part configured to supply a voltage of a first power source or a voltage of a second power source as the gate signal to an output terminal based on a voltage of a third node and a voltage of a fourth node, a first signal processing part configured to supply the voltage of the second power source to the fourth node based on the voltage of the first node, or to electrically connect the second node and the fourth node through a fifth node based on a signal supplied to a third input terminal, and a second signal processing part including a first transistor connected between the third node and a sixth node to control the voltage of the third node based on an operation of the first transistor.

公开(公告)号：US12008963B2

公开(公告)日：2024-06-11

申请号：US18106321

申请日：2023-02-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hai Jung In

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A display device includes gate lines and pixels connected to the gate lines. The display device includes stages which provide gate signals to the gate lines, and first and second gate power lines which transfer a first voltage to the stages. A first stage among the stages includes a first node controller and a first output unit. The first node controller is connected to the second gate power line, and controls a voltage of a first control node. The first output unit is connected to the first gate power line, and outputs a first voltage of the first gate power line as a gate signal in response to a voltage of the first control node.

公开(公告)号：US11935458B2

公开(公告)日：2024-03-19

申请号：US17850894

申请日：2022-06-27

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：US11869412B2

公开(公告)日：2024-01-09

申请号：US17567827

申请日：2022-01-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Ki Myeong Eom ,  Kyong Hwan Oh

IPC: G09G3/3266 ,  G09G3/20

CPC classification number: G09G3/2092 ,  G09G2300/0861 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2330/00

Abstract: A display device including a pixel connected to a first scan line, a second scan line, a third scan line, an emission control line, and a data line; a first driver supplying a first scan signal to the first scan line in a first period; a second driver supplying a second scan signal to the second scan line in the first period; a third driver supplying a third scan signal to the third scan line in the first and second periods; an emission driver supplying a control signal to the emission control line in the first and second periods; and a data driver supplying a data signal to the data line in the first period, in which a width of the second scan signal is greater than that of the first scan signal to overlap a plural first scan signals respectively supplied to first scan lines during the first period.