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：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：US11974474B2

公开(公告)日：2024-04-30

申请号：US17158362

申请日：2021-01-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaehwan Chu ,  Keunwoo Kim ,  Taewook Kang ,  Doona Kim ,  Sangsub Kim ,  Bummo Sung ,  Dokyeong Lee ,  Yongsu Lee

IPC: H01L27/32 ,  G09G3/3233 ,  H10K59/131

CPC classification number: H10K59/131 ,  G09G3/3233

Abstract: An organic light-emitting display apparatus includes an organic light-emitting diode, a driving transistor configured to control an amount of electric current flowing to the organic light-emitting diode from a power line, a compensation transistor configured to diode-connect the driving transistor in response to a voltage applied to first and second compensation gate electrodes of the compensation transistor, and a gate insulating layer between the compensation gate electrodes and a compensation active region of a compensation transistor. A layer structure of the gate insulating layer between the first compensation gate electrode and the compensation active region is different from a layer structure of the gate insulating layer between the second compensation gate electrode and the compensation active region.

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：US11455952B2

公开(公告)日：2022-09-27

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 ,  H01L51/00 ,  H01L27/32

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：US20210288123A1

公开(公告)日：2021-09-16

申请号：US17134595

申请日：2020-12-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo Kim ,  Taewook Kang ,  Doona Kim ,  Bummo Sung ,  Dokyeong Lee ,  Jaehwan Chu

IPC: H01L27/32 ,  H01L29/786

Abstract: A thin-film transistor substrate includes a semiconductor layer disposed on a substrate, a gate insulating layer disposed on the semiconductor layer, a first electrode that at least partly overlaps the semiconductor layer, wherein the gate insulating layer is disposed between the first electrode and the semiconductor layer, a plurality of thin-film layers disposed on the first electrode, and a second electrode that at least partly overlaps the first electrode, wherein the plurality of thin-film layers are disposed between the second electrode and the first electrode, wherein at least one of the plurality of thin-film layers includes amorphous silicon.

公开(公告)号：US12101967B2

公开(公告)日：2024-09-24

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

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

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：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.

公开(公告)号：US11705057B2

公开(公告)日：2023-07-18

申请号：US17536560

申请日：2021-11-29

Applicant: Samsung Display Co., Ltd.

Inventor： Keunwoo Kim ,  Meejae Kang ,  Hanbit Kim ,  Do Kyeong Lee ,  Jaehwan Chu

IPC: G09G3/32 ,  H10K59/121 ,  H01L27/12 ,  H01L29/786

CPC classification number: G09G3/32 ,  H10K59/1213 ,  H10K59/1216 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0257 ,  G09G2330/021 ,  H01L27/1225 ,  H01L27/1251 ,  H01L27/1255 ,  H01L29/7869 ,  H01L29/78648 ,  H01L29/78675

Abstract: A pixel includes a light emitting element, a driving switching element and a first compensation switching element and a second compensation switching element. The driving switching element is which applies a driving current to the light emitting element. The first compensation switching element and the second compensation switching element are connected between a control electrode of the driving switching element and an output electrode of the driving switching element. The first compensation switching element and the second compensation switching element are connected to each other in series. The driving switching element is a P-type transistor. The first compensation switching element is an N-type transistor. The second compensation switching element is a P-type transistor.

公开(公告)号：US11631727B2

公开(公告)日：2023-04-18

申请号：US17134595

申请日：2020-12-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo Kim ,  Taewook Kang ,  Doona Kim ,  Bummo Sung ,  Dokyeong Lee ,  Jaehwan Chu

IPC: H01L29/08 ,  H01L27/32 ,  H01L29/786

Abstract: A thin-film transistor substrate includes a semiconductor layer disposed on a substrate, a gate insulating layer disposed on the semiconductor layer, a first electrode that at least partly overlaps the semiconductor layer, wherein the gate insulating layer is disposed between the first electrode and the semiconductor layer, a plurality of thin-film layers disposed on the first electrode, and a second electrode that at least partly overlaps the first electrode, wherein the plurality of thin-film layers are disposed between the second electrode and the first electrode, wherein at least one of the plurality of thin-film layers includes amorphous silicon.