公开(公告)号：US20240412696A1

公开(公告)日：2024-12-12

申请号：US18804456

申请日：2024-08-14

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 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：US20240296800A1

公开(公告)日：2024-09-05

申请号：US18661429

申请日：2024-05-10

Applicant: Samsung Display Co., Ltd

Inventor： Hai Jung IN ,  Ji Hyun KA ,  Tae Hoon KWON ,  Ki Myeong EOM ,  Chae Han HYUN

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2300/0809 ,  G09G2320/0209 ,  G09G2320/0233 ,  G09G2330/021

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：US20230206833A1

公开(公告)日：2023-06-29

申请号：US17884838

申请日：2022-08-10

Applicant: Samsung Display Co., LTD.

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

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

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2310/08 ,  G09G2300/0852 ,  G09G2300/0819 ,  G09G2300/0426 ,  G09G2330/04 ,  G09G2310/027

Abstract: A display panel includes pads and pixels, signal lines electrically connected to the pads, and a protection circuit electrically connected between one signal line among the signal lines and a first voltage line. The protection circuit includes a first transistor, a first resistor, and a first capacitor. The first transistor includes a first electrode electrically connected to the first voltage line, a second electrode electrically connected to the one signal line, and a gate electrode. The first resistor is electrically connected between the gate electrode of the first transistor and the one signal line. The first capacitor is disposed between the gate electrode of the first transistor and the one signal line.

公开(公告)号：US20230018432A1

公开(公告)日：2023-01-19

申请号：US17953288

申请日：2022-09-26

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

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：US20220238063A1

公开(公告)日：2022-07-28

申请号：US17722631

申请日：2022-04-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hai Jung IN

IPC: G09G3/20

Abstract: A gate driver includes first and second stages. Each of the first and second stages includes an output circuit which outputs a scan signal, a carry signal and an inverted carry signal based on voltages of first and second nodes, a first input terminal, a second input terminal, a third input terminal, a first output terminal, and a second output terminal. The first stage further includes a first input circuit which controls the voltages of the first and second nodes thereof based on a start pulse and a signal supplied to the second input terminal. The second stage further includes a second input circuit which controls the voltages of the first and second nodes thereof based on a first carry signal and a first inverted carry signal, and a signal supplied to the second input terminal. The second stage is dependently connected to the first stage.

公开(公告)号：US20210264847A1

公开(公告)日：2021-08-26

申请号：US17008308

申请日：2020-08-31

Applicant: Samsung Display Co., Ltd.

Inventor： Il Hun JEONG ,  Hai Jung IN ,  Yeon Shil JUNG ,  Hae Goo JUNG

IPC: G09G3/32 ,  G09G3/20

Abstract: A display device includes: a display panel including a pixel electrically connected to each of a data line, a first power line, a second power line, and a third power line; a power supply to provide a first power voltage to the first power line, and a second power voltage to the second power line; and a driver to provide a data voltage to the data line, and a third power voltage to the third power line. The driver is to determine whether a sensing voltage measured at the second power line is out of a reference range, and to limit the supply of the third power voltage when the sensing voltage is out of the reference range.

公开(公告)号：US20250061836A1

公开(公告)日：2025-02-20

申请号：US18938567

申请日：2024-11-06

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/20

Abstract: A pixel including a light emitting device, a first transistor including a first electrode connected to a first node electrically connected to a first power source, a second transistor connected between a data line and the first node and turned on in response to a first scan signal supplied to a first scan line, a third transistor connected between a third node connected to a second electrode of the first transistor and a second node and turned on in response to a second scan signal supplied to a second scan line, a fourth transistor turned on in response to a third scan signal, and a storage capacitor connected between the first power source and the second node, in which the second scan signal overlaps the first scan signal, and a width of the second scan signal is greater than twice a width of the first scan signal.

公开(公告)号：US20240296777A1

公开(公告)日：2024-09-05

申请号：US18662918

申请日：2024-05-13

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：US20240233605A1

公开(公告)日：2024-07-11

申请号：US18418328

申请日：2024-01-21

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 ,  G09G3/3233

CPC classification number: G09G3/2092 ,  G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2340/0435

Abstract: A display device including 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：US20240105100A1

公开(公告)日：2024-03-28

申请号：US18531708

申请日：2023-12-07

Applicant: Samsung Display Co,. Ltd.

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

IPC: G09G3/20

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

Abstract: A pixel including a light emitting device, a first transistor including a first electrode connected to a first node electrically connected to a first power source, a second transistor connected between a data line and the first node and turned on in response to a first scan signal supplied to a first scan line, a third transistor connected between a third node connected to a second electrode of the first transistor and a second node and turned on in response to a second scan signal supplied to a second scan line, a fourth transistor turned on in response to a third scan signal, and a storage capacitor connected between the first power source and the second node, in which the second scan signal overlaps the first scan signal, and a width of the second scan signal is greater than twice a width of the first scan signal.