公开(公告)号：US20250014516A1

公开(公告)日：2025-01-09

申请号：US18887017

申请日：2024-09-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KEUNWOO KIM

IPC: G09G3/3233

Abstract: A pixel according to one or more embodiments of the present disclosure may include a transistor including a gate terminal connected to a first node, a first terminal connected to a first power, and a second terminal connected to a second node having a same potential as the first node, a capacitor including a first capacitor terminal connected to a data power, and a second capacitor terminal connected to the first node, and a light emitting diode including a first diode terminal connected to the second node, and a second diode terminal connected to a second power.

公开(公告)号：US20230395030A1

公开(公告)日：2023-12-07

申请号：US18305156

申请日：2023-04-21

Applicant: Samsung Display Co., LTD.

Inventor： KEUNWOO KIM ,  TAEWOOK KANG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2310/0262 ,  G09G2300/0426 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: A display apparatus includes: a light emitting element; a driving switching element to apply a driving current to the light emitting element; and a first compensation switching element and a second compensation switching element connected in series to each other between a control electrode of the driving switching element and an output electrode of the driving switching element. A control electrode of the first compensation switching element and a control electrode of the second compensation switching element are to receive a compensation gate signal, and a falling waveform of the compensation gate signal and a rising waveform of the compensation gate signal are asymmetrical to each other.

公开(公告)号：US20220344424A1

公开(公告)日：2022-10-27

申请号：US17568242

申请日：2022-01-04

Applicant: Samsung Display Co., Ltd.

Inventor： KEUNWOO KIM ,  TAEWOOK KANG

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device includes a substrate including a sub-pixel area, an active layer disposed in the sub-pixel area and including first to third regions, a first channel region between the first and second regions, and a second channel region between the second and third regions, a first gate electrode disposed in the first and second channel regions, and constituting a dual gate transistor together with the first and second regions, the first channel region, the second and third regions, and the second channel region, a first gate insulating layer disposed between the active layer and the first gate electrode, and defining an opening exposing the second region, an insulating pattern in the opening, a gate electrode pattern contacting a top surface of the insulating pattern, and is spaced apart from the first gate electrode, and a light emitting structure on the dual gate transistor and the gate electrode pattern.

公开(公告)号：US20220310733A1

公开(公告)日：2022-09-29

申请号：US17536481

申请日：2021-11-29

Applicant: Samsung Display Co., Ltd.

Inventor： KEUNWOO KIM

IPC: H01L27/32

Abstract: A display device includes a plurality of pixels each including: a first driving transistor including a first electrode connected to a first node; a second electrode connected to a second node, and a gate electrode connected to a third node, a second driving transistor including a first electrode connected to a fourth node, a second electrode connected to the first node, a gate electrode connected to the third node, and a lower gate electrode which receives an emission control signal; a second transistor including a first electrode which receives a data voltage, a second electrode connected to the first node, and a gate electrode which receives a write gate signal; and a third transistor including a first electrode connected to the second node, a second electrode connected to the third node, and a gate electrode which receives the write gate signal or a compensation gate signal.

公开(公告)号：US20220181420A1

公开(公告)日：2022-06-09

申请号：US17471849

申请日：2021-09-10

Applicant: Samsung Display Co., Ltd.

Inventor： KEUNWOO KIM ,  MEEJAE KANG ,  THANH TIEN NGUYEN ,  HYENA KWAK ,  JAEHWAN CHU

IPC: H01L27/32

Abstract: A display device may include a substrate, a first transistor disposed on the substrate and including a first gate electrode, a first conductive pattern disposed on the first gate electrode such that the first conductive pattern and the first gate electrode constitute a first capacitor, a second conductive pattern disposed on the first capacitor, a third conductive pattern disposed on the second conductive pattern such that the third conductive pattern and the second conductive pattern constitute a second capacitor, and a light emitting structure disposed on the second capacitor.

公开(公告)号：US20220180811A1

公开(公告)日：2022-06-09

申请号：US17489399

申请日：2021-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： HANBIT KIM ,  MEEJAE KANG ,  KEUNWOO KIM ,  DOO-NA KIM ,  SANGSUB KIM ,  DO KYEONG LEE ,  JAEHWAN CHU

IPC: G09G3/3258 ,  G09G3/3266

Abstract: A pixel includes: a capacitor connected between a first voltage line and a first node; a light emitting diode including a first electrode connected to a second node, and a second electrode connected to a second voltage line; a first transistor; a second transistor; a third transistor including a first electrode connected to the first node, a second electrode connected to the second node, and a gate electrode to receive a first scan signal; a fourth transistor including a first electrode connected to the first node, a second electrode connected to a third voltage line to receive a third voltage, and a gate electrode to receive a second scan signal; and a compensation transistor including a first electrode connected to the first node, a second electrode connected to a fourth voltage line to receive a compensation voltage, and a gate electrode to receive a compensation control voltage.

公开(公告)号：US20210335242A1

公开(公告)日：2021-10-28

申请号：US17084142

申请日：2020-10-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KEUNWOO KIM ,  DOONA KIM ,  SANGSUB KIM ,  DOKYEONG LEE ,  JAEHWAN CHU

IPC: G09G3/3233

Abstract: A display apparatus includes a first thin-film transistor including a semiconductor layer arranged on a substrate, a driving gate electrode arranged on the semiconductor layer, and a first electrode arranged between the substrate and the semiconductor layer, a second thin-film transistor transmitting a data signal received through a data line to the first thin-film transistor according to a first scan signal received through a first scan line, and a third thin-film transistor transmitting a first voltage to the first electrode according to a second scan signal received through a second scan line.

公开(公告)号：US20250126893A1

公开(公告)日：2025-04-17

申请号：US18746472

申请日：2024-06-18

Applicant: Samsung Display Co., LTD.

Inventor： KEUNWOO KIM

IPC: H01L27/12 ,  G09G3/32

Abstract: A display device includes a pixel and a driver electrically connected to the pixel. The driver may include first oxide semiconductor layer including a first source area, a first drain area, and a first channel area disposed between the first source area and the first drain area. The driver may include a first gate electrode disposed on the first oxide semiconductor layer and overlapping the first channel area of the first oxide semiconductor layer in a plan view. The driver may include a first charge layer disposed between the first gate electrode and the first oxide semiconductor layer and overlapping at least a portion of the first channel area in a plan view.

公开(公告)号：US20240363070A1

公开(公告)日：2024-10-31

申请号：US18766546

申请日：2024-07-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KEUNWOO KIM ,  TAEWOOK KANG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: A display apparatus includes: a light emitting element; a driving switching element to apply a driving current to the light emitting element; and a first compensation switching element and a second compensation switching element connected in series to each other between a control electrode of the driving switching element and an output electrode of the driving switching element. A control electrode of the first compensation switching element and a control electrode of the second compensation switching element are to receive a compensation gate signal, and a falling waveform of the compensation gate signal and a rising waveform of the compensation gate signal are asymmetrical to each other.

公开(公告)号：US20240304134A1

公开(公告)日：2024-09-12

申请号：US18505137

申请日：2023-11-09

Applicant: Samsung Display Co., Ltd.

Inventor： KEUNWOO KIM

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2320/045

Abstract: A pixel is disclosed that includes a first transistor, a second transistor, a third transistor, a light emitting diode, a first capacitor, and a second capacitor. The first transistor includes a first gate electrode connected to a first node, a second gate electrode which receives a write gate signal or an emission control signal, a first electrode which receives a first power voltage, and a second electrode connected to a second node.