公开(公告)号：US12062334B2

公开(公告)日：2024-08-13

申请号：US18139975

申请日：2023-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Hanbit Kim ,  Sungwook Kim ,  Chanyeob Seol ,  Yunjung Oh ,  Jeong-Soo Lee ,  Jina Lee ,  Seongbaik Chu

IPC: G09G3/3233 ,  H10K59/131

CPC classification number: G09G3/3233 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A pixel may include a light emitting diode which includes an anode and a cathode, a first transistor which includes a first source region, a first drain region electrically connected to the anode, a first channel region, and a first gate electrode, a first sub-transistor which includes a first sub-source region connected to the first drain region, a first sub-drain region, a first sub-channel region, and a first sub-gate electrode, a second sub-transistor which includes a second sub-source region connected to the first sub-drain region, a second sub-drain region connected to the first gate electrode, a second sub-channel region, and a second sub-gate electrode, a storage line which overlaps the first sub-drain region and the second sub-source region, and a first hold pattern which overlaps the first sub-drain region, the second sub-source region, and the storage line, and connected to the first sub-drain region and the second sub-source region.

公开(公告)号：US11810511B2

公开(公告)日：2023-11-07

申请号：US17741833

申请日：2022-05-11

Applicant: Samsung Display Co., Ltd.

Inventor： Hanbit Kim ,  Taewook Kang ,  Doo-Na Kim ,  Sangsub Kim ,  Yunjung Oh ,  Dokyeong Lee ,  Jaehwan Chu

IPC: G09G3/3241 ,  G09G3/3291

CPC classification number: G09G3/3241 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2330/021

Abstract: A pixel includes an organic light-emitting diode, a driving transistor, a first dual gate transistor, a first capacitor, and a compensation transistor. The organic light-emitting diode includes first and second terminals. The driving transistor generates the driving current and includes a first terminal to which a first power supply voltage is applied, a second terminal connected to the first terminal of the organic light-emitting diode, and a gate terminal. The first dual gate transistor is connected between the gate terminal of the driving transistor and the second terminal of the driving transistor and includes first and second sub-transistors. The first capacitor includes a first electrode to which the first power supply voltage is applied, and a second electrode connected to a first node that connects the first and second sub-transistors to each other. The compensation transistor includes a terminal connected between the second electrode and the first node.

公开(公告)号：US12120919B2

公开(公告)日：2024-10-15

申请号：US17679691

申请日：2022-02-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehwan Chu ,  Meejae Kang ,  Keunwoo Kim ,  Doona Kim ,  Sangsub Kim ,  Hanbit Kim ,  Dokyeong Lee ,  Yongsu Lee

IPC: H10K59/12 ,  H10K59/121

CPC classification number: H10K59/1213 ,  H10K59/1216 ,  H10K59/1201

Abstract: A method of manufacturing a display apparatus includes forming a first photosensitive pattern and a second photosensitive pattern of different thicknesses on an active layer; forming a driving semiconductor layer and a compensation semiconductor layer using the first photosensitive pattern and the second photosensitive pattern as masks to etch the active layer; exposing an upper surface of the driving semiconductor layer by etching the first photosensitive pattern and forming a third photosensitive pattern by etching at least a portion of the second photosensitive pattern; forming a first insulating layer on the driving semiconductor layer and the third photosensitive pattern; exposing an upper surface of the compensation semiconductor layer by stripping the third photosensitive pattern; and forming a second insulating layer on the first insulating layer and the compensation semiconductor layer.

公开(公告)号：US20240147790A1

公开(公告)日：2024-05-02

申请号：US18373970

申请日：2023-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： Hanbit Kim ,  Hyena Kwak ,  Jiyeong Shin ,  Yunjung Oh ,  Dokyeong Lee ,  Sanggun Choi

IPC: H10K59/131 ,  H10K59/121

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

Abstract: Provided are a pixel in which pixel circuits of a plurality of rows of the same column share a capacitor, and a display apparatus including the same.

公开(公告)号：US12213361B2

公开(公告)日：2025-01-28

申请号：US18373970

申请日：2023-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： Hanbit Kim ,  Hyena Kwak ,  Jiyeong Shin ,  Yunjung Oh ,  Dokyeong Lee ,  Sanggun Choi

IPC: G09G3/20 ,  H10K59/121 ,  H10K59/131

Abstract: Provided are a pixel in which pixel circuits of a plurality of rows of the same column share a capacitor, and a display apparatus including the same.

公开(公告)号：US12112705B2

公开(公告)日：2024-10-08

申请号：US18376160

申请日：2023-10-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hanbit Kim ,  Taewook Kang ,  Doo-Na Kim ,  Sangsub Kim ,  Yunjung Oh ,  Dokyeong Lee ,  Jaehwan Chu

IPC: G09G3/32 ,  G09G3/3241 ,  G09G3/3291

CPC classification number: G09G3/3241 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2330/021

Abstract: A pixel includes an organic light-emitting diode, a driving transistor, a first dual gate transistor, a first capacitor, and a compensation transistor. The organic light-emitting diode includes first and second terminals. The driving transistor generates the driving current and includes a first terminal to which a first power supply voltage is applied, a second terminal connected to the first terminal of the organic light-emitting diode, and a gate terminal. The first dual gate transistor is connected between the gate terminal of the driving transistor and the second terminal of the driving transistor and includes first and second sub-transistors. The first capacitor includes a first electrode to which the first power supply voltage is applied, and a second electrode connected to a first node that connects the first and second sub-transistors to each other. The compensation transistor includes a terminal connected between the second electrode and the first node.

公开(公告)号：US12262589B2

公开(公告)日：2025-03-25

申请号：US17079765

申请日：2020-10-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo Kim ,  Hyena Kwak ,  Sangsub Kim ,  Hanbit Kim

IPC: H10K59/121 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/131

Abstract: A pixel includes: a driving transistor including a semiconductor layer and a gate electrode; and a compensation transistor connected to the gate electrode and the semiconductor layer of the driving transistor, wherein the first thin-film transistor includes: a first sub-transistor including a first gate electrode receiving a first scan signal having a first voltage level during a period; and a second sub-transistor connected to the first sub-transistor in parallel and comprising a second gate electrode receiving a second scan signal having a second voltage level that is an inverted level of the first voltage level during the same period.

公开(公告)号：US20240324288A1

公开(公告)日：2024-09-26

申请号：US18583109

申请日：2024-02-21

Applicant: Samsung Display Co., Ltd.

Inventor： Sunhwa Lee ,  Junhyun Park ,  Hyeongseok Kim ,  Heejean Park ,  Hanbit Kim

IPC: H10K59/121 ,  H10K59/124 ,  H10K59/131

CPC classification number: H10K59/1213 ,  H10K59/1216 ,  H10K59/131 ,  H10K59/124

Abstract: A display apparatus includes a first thin-film transistor in a display area, and including a first semiconductor layer and a first gate electrode, the first semiconductor layer including a silicon semiconductor, a second thin-film transistor on the first thin-film transistor, and including a second semiconductor layer and a second gate electrode, the second semiconductor layer including an oxide semiconductor, a third thin-film transistor on the first thin-film transistor, and including a third semiconductor layer and a third gate electrode, the third semiconductor layer including an oxide semiconductor, a bridge metal layer between the first thin-film transistor and the second thin-film transistor and electrically connected to the first semiconductor layer through a first contact hole, and a first conductive pattern layer on the second gate electrode of the second thin-film transistor, and the bridge metal layer is electrically connected to the first conductive pattern layer through a second contact hole.

公开(公告)号：US11411122B2

公开(公告)日：2022-08-09

申请号：US17086545

申请日：2020-11-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaeseob Lee ,  Meejae Kang ,  Yoonho Khang ,  Keunwoo Kim ,  Hanbit Kim ,  Thanhtien Nguyen

IPC: H01L29/786 ,  H01L27/32

Abstract: A display device including: a first thin film transistor (TFT) including a first semiconductor layer and a first gate electrode, the first semiconductor layer including a first channel region, a first source region, and a first drain region; a third TFT including a third semiconductor layer and a third gate electrode, the third semiconductor layer including a third channel region, a third source region, and a third drain region, wherein a leakage current of the third TFT in an off-state is less than a leakage current of the first TFT in an off-state; and a pixel electrode connected to one of the first source region and the first drain region, wherein the one of the first source region and the first drain region is connected to the third TFT.

公开(公告)号：US11727882B2

公开(公告)日：2023-08-15

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

CPC classification number: G09G3/3258 ,  G09G3/3266 ,  G09G2300/0426

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.