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：US20220415255A1

公开(公告)日：2022-12-29

申请号：US17684227

申请日：2022-03-01

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3233

Abstract: A pixel includes a first capacitor connected between a first electrode and a second electrode connected to a first node, a first transistor including a gate electrode connected to the first node, a first electrode connected to a second node, and a second electrode connected to a third node, a second transistor including a gate electrode that receives a data write gate signal, a first electrode that receives a data voltage, and a second electrode connected to the second node, a third transistor connected between the first node and the third node, a fourth transistor connected between the first node and an initialization voltage input terminal to which an initialization voltage is applied, an eighth transistor t connected to the third transistor and the fourth transistor, and an organic light emitting diode including an anode and a cathode receiving a second power supply voltage.

公开(公告)号：US20240029655A1

公开(公告)日：2024-01-25

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: G09G3/3241 ,  G09G3/3291

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

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：US20230067920A1

公开(公告)日：2023-03-02

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

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：US20210343821A1

公开(公告)日：2021-11-04

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

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.