公开(公告)号：US11705463B2

公开(公告)日：2023-07-18

申请号：US17113845

申请日：2020-12-07

Applicant: LG Display Co., Ltd.

Inventor： ChanYong Jeong ,  Dohyung Lee ,  JuHeyuck Baeck

IPC: H01L27/14 ,  H01L27/12 ,  H10K59/131

CPC classification number: H01L27/124 ,  H01L27/1262 ,  H10K59/131

Abstract: Provided are a transistor array substrate and an electronic device. A first active layer includes a first area, a second area spaced apart from the first area, and a channel area provided between the first area and the second area. A gate insulating film is disposed on the first active layer. A gate electrode is disposed on the gate insulating film to overlap a portion of the channel area of the first active layer. The gate electrode overlaps a portion of at least one area of the first and second areas of the first active layer. Deteriorations in the channel area are prevented.

公开(公告)号：US20230146562A1

公开(公告)日：2023-05-11

申请号：US17978100

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： Dohyung Lee ,  HongRak Choi ,  ChanYong Jeong

IPC: H01L27/32

CPC classification number: H01L27/3262 ,  H01L27/3272 ,  H01L27/1225

Abstract: A thin film transistor and a display device comprising the same are provided. The thin film transistor comprises a first gate electrode and a second gate electrode, which are spaced apart from each other to overlap each other, and an active layer disposed between the first gate electrode and the second gate electrode, including a first active layer and a second active layer, wherein the active layer includes a channel portion, a first connection portion that is in contact with one side of the channel portion, and a second connection portion that is in contact with the other side of the channel portion. The channel portion includes a first channel portion and a second channel portion, which are disposed in parallel.

公开(公告)号：US11107870B2

公开(公告)日：2021-08-31

申请号：US16221203

申请日：2018-12-14

Applicant: LG DISPLAY CO., LTD.

Inventor： Saeroonter Oh ,  Jungsun Beak ,  Seungmin Lee ,  Juheyuck Baeck ,  Hyunsoo Shin ,  Jeyong Jeon ,  Dohyung Lee

IPC: H01L27/32 ,  H01L27/12 ,  G09G3/3208 ,  H01L51/52

Abstract: The present disclosure relates to a thin film transistor substrate having two different types of thin film transistors on the same substrate and a display using the same. A disclosed display device may include a substrate, a first thin film transistor including a first semiconductor layer having a polycrystalline semiconductor material on the substrate, and a second thin film transistor including a second semiconductor layer including an oxide semiconductor material on the substrate. Both the first semiconductor layer and the second semiconductor layer may be disposed directly on a same underlying layer.

公开(公告)号：US12087835B2

公开(公告)日：2024-09-10

申请号：US18217147

申请日：2023-06-30

Applicant: LG Display Co., Ltd.

Inventor： Dohyung Lee ,  JuHeyuck Baeck ,  ChanYong Jeong

IPC: H01L29/423 ,  H01L27/146 ,  H01L29/43

CPC classification number: H01L29/42376 ,  H01L27/14614 ,  H01L29/42384 ,  H01L29/435

Abstract: A thin film transistor array substrate and an electronic device including the thin film transistor array are disclosed. The thin film transistor comprises a substrate, a first active layer on the substrate, a gate electrode on the first active layer, a second active layer on the gate electrode such that the gate electrode is between the first active layer and the second active layer. The gate electrode is configured to drive the first active layer and the second active layer. Thereby, it is possible to provide the thin film transistor array substrate including one or more thin film transistors having high current characteristics in a small area, and the electronic device including the thin film transistor array substrate.

公开(公告)号：US11881531B2

公开(公告)日：2024-01-23

申请号：US17950024

申请日：2022-09-21

Applicant: LG Display Co., Ltd.

Inventor： JuHeyuck Baeck ,  Dohyung Lee ,  ChanYong Jeong

IPC: H01L29/786 ,  H10K59/124 ,  H01L27/12

CPC classification number: H01L29/78645 ,  H01L27/124 ,  H01L27/1214 ,  H01L27/1222 ,  H01L29/78603 ,  H01L29/78696 ,  H10K59/124

Abstract: Provided are a thin film transistor array substrate and an electronic device including the same. More specifically, the thin film transistor array includes a first active layer including a first area, a second area spaced apart from the first area, and a channel area provided between the first area and the second area, a first gate electrode disposed on the first active layer, and a second gate electrode disposed on the same layer as the first gate electrode to overlap one end of the first gate electrode and to which a signal corresponding to a signal applied to the first gate electrode is applied. Therefore, it is possible to have a structure for simultaneously controlling the threshold voltage, mobility, and subthreshold (S) parameter of a thin film transistor.

公开(公告)号：US11735638B2

公开(公告)日：2023-08-22

申请号：US17505115

申请日：2021-10-19

Applicant: LG Display Co., Ltd.

Inventor： Dohyung Lee ,  JuHeyuck Baeck ,  ChanYong Jeong

IPC: H01L29/423 ,  H01L27/146 ,  H01L29/43

CPC classification number: H01L29/42376 ,  H01L27/14614 ,  H01L29/42384 ,  H01L29/435

Abstract: A thin film transistor array substrate and an electronic device including the thin film transistor array are disclosed. The thin film transistor comprises a substrate, a first active layer on the substrate, a gate electrode on the first active layer, a second active layer on the gate electrode such that the gate electrode is between the first active layer and the second active layer. The gate electrode is configured to drive the first active layer and the second active layer. Thereby, it is possible to provide the thin film transistor array substrate including one or more thin film transistors having high current characteristics in a small area, and the electronic device including the thin film transistor array substrate.

公开(公告)号：US11728436B2

公开(公告)日：2023-08-15

申请号：US17498246

申请日：2021-10-11

Applicant: LG DISPLAY CO., LTD.

Inventor： JuHeyuck Baeck ,  Dohyung Lee ,  ChanYong Jeong

IPC: H01L29/786 ,  H01L27/12 ,  H10K59/126 ,  H10K59/121

CPC classification number: H01L29/7869 ,  H01L27/1225 ,  H01L29/78603 ,  H01L29/78633 ,  H01L29/78696 ,  H10K59/126 ,  H10K59/1213

Abstract: A thin film transistor is disclosed. The thin film transistor comprises an active layer, and a gate electrode overlapped with the active layer, wherein the active layer includes a channel portion overlapped with the gate electrode, and the channel portion includes a source boundary portion, a drain boundary portion, and a main channel portion, wherein at least a part of the drain boundary portion have a relatively smaller thickness in comparison to a thickness of the main channel portion. Also, according to one embodiment of the present disclosure, a display apparatus comprising the thin film transistor is provided.

公开(公告)号：US20220123120A1

公开(公告)日：2022-04-21

申请号：US17505115

申请日：2021-10-19

Applicant: LG Display Co., Ltd.

Inventor： Dohyung Lee ,  JuHeyuck Baeck ,  ChanYong Jeong

IPC: H01L29/423 ,  H01L29/43 ,  H01L27/146

Abstract: A thin film transistor array substrate and an electronic device including the thin film transistor array are disclosed. The thin film transistor comprises a substrate, a first active layer on the substrate, a gate electrode on the first active layer, a second active layer on the gate electrode such that the gate electrode is between the first active layer and the second active layer. The gate electrode is configured to drive the first active layer and the second active layer. Thereby, it is possible to provide the thin film transistor array substrate including one or more thin film transistors having high current characteristics in a small area, and the electronic device including the thin film transistor array substrate.

公开(公告)号：US11127353B2

公开(公告)日：2021-09-21

申请号：US16690815

申请日：2019-11-21

Applicant: LG Display Co., Ltd.

Inventor： Dohyung Lee ,  ChanYong Jeong ,  JuHeyuck Baeck ,  Kwangll Chun

IPC: G09G3/3241 ,  G09G3/3266 ,  H01L27/12

Abstract: A display device and a signal inversion device are provided. A display device includes: a display panel including: sub-pixels, and scan lines respectively connected to each of the sub-pixels, and light emission control lines respectively connected to each of the sub-pixels, a scan driver circuit for outputting respective scan signals to the scan lines, and a light emission control driver circuit for outputting respective light emission control signals to the light emission control lines, the light emission control driver circuit including: a resistance device electrically connected between: a first voltage node for receiving a first voltage, and an output node electrically connected to the light emission control lines, and a transistor electrically connected between the output node and a second voltage node for receiving a second voltage that is different from the first voltage, wherein an on/off operation of the transistor is controlled according to an input signal.

公开(公告)号：US10181502B2

公开(公告)日：2019-01-15

申请号：US14838659

申请日：2015-08-28

Applicant: LG Display Co., Ltd.

Inventor： Saeroonter Oh ,  Jungsun Beak ,  Seungmin Lee ,  Juheyuck Baeck ,  Hyunsoo Shin ,  Jeyong Jeon ,  Dohyung Lee

IPC: H01L27/32 ,  H01L27/12 ,  G09G3/3208 ,  H01L51/52

Abstract: The present disclosure relates to a thin film transistor substrate having two different types of thin film transistors on the same substrate and a display using the same. A disclosed display device may include a substrate, a first thin film transistor including a first semiconductor layer having a polycrystalline semiconductor material on the substrate, and a second thin film transistor including a second semiconductor layer including an oxide semiconductor material on the substrate. Both the first semiconductor layer and the second semiconductor layer may be disposed directly on a same underlying layer.