公开(公告)号：US12034082B2

公开(公告)日：2024-07-09

申请号：US17029889

申请日：2020-09-23

Applicant: LG Display Co., Ltd.

Inventor： JeongSuk Yang ,  KwangMin Jo ,  Sohyung Lee

IPC: H01L29/786 ,  H01L27/12 ,  H01L27/32 ,  H01L29/66 ,  H10K59/121 ,  H10K59/124

CPC classification number: H01L29/78696 ,  H01L27/1225 ,  H01L29/6675 ,  H01L29/78609 ,  H01L29/78621 ,  H01L29/7869 ,  H10K59/1213 ,  H10K59/124

Abstract: An embodiment of the present disclosure provides a thin film transistor, a method of manufacturing the thin film transistor and a display apparatus including the thin film transistor. The thin film transistor includes an active layer on a substrate, a gate electrode disposed apart from the active layer to at least partially overlap the active layer, and a gate insulation layer between the active layer and the gate electrode. The gate insulation layer can cover an entire top surface of the active layer facing the gate electrode. The active layer can include a channel part overlapping the gate electrode, a conductivity-providing part which does not overlap the gate electrode, and an offset part between the channel part and the conductivity-providing part. The offset part may not overlap the gate electrode, and the conductivity-providing part can be doped with a dopant.

公开(公告)号：US10163944B2

公开(公告)日：2018-12-25

申请号：US15699126

申请日：2017-09-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Sohyung Lee ,  Youngyoung Chang ,  Kwonshik Park ,  Mincheol Kim ,  Jeongsuk Yang

IPC: H01L27/12 ,  H01L27/32 ,  G02F1/13 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1343

Abstract: A thin film transistor (TFT) substrate and a display device using the same are disclosed. The TFT substrate includes a first TFT including a polycrystalline semiconductor layer, a first gate electrode, a first source electrode, and a first drain electrode deposited on a substrate, a second TFT separated from the first TFT, the second TFT including a second gate electrode, an oxide semiconductor layer, a second source electrode, and a second drain electrode deposited on the first gate electrode, and a plurality of storage capacitors separated from the first and second TFTs, each storage capacitor including a first dummy semiconductor layer, a first gate insulating layer on the first dummy semiconductor layer, a first dummy gate electrode on the first gate insulating layer, and an intermediate insulating layer on the first dummy gate electrode.

公开(公告)号：US09569042B2

公开(公告)日：2017-02-14

申请号：US14080641

申请日：2013-11-14

Applicant: LG DISPLAY CO., LTD.

Inventor： Jonghyun Han ,  Byungkoo Kang ,  Dongsup Kim ,  Sohyung Lee ,  Sungyong Cho ,  Daewoong Chun

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F2203/04111

Abstract: A touch screen panel includes a plurality of first touch electrode serials arranged in a first direction and a plurality of second touch electrode serials arranged in a second direction crossing over the first direction, and electrically insulated from the plurality of first electrode serials. The first touch electrode serial includes a plurality of first touch electrodes connected in serial, and the second touch electrode serial includes a plurality of second touch electrodes connected in serial. The first touch electrode has a first stem portion, and a plurality of first branch portions outwardly extended from both sides of the first stem portion. The second touch electrodes has a second stem portion, and a plurality of second branch portions outwardly extended from both sides of the second stem portion.

Abstract translation: 触摸屏面板包括沿第一方向布置的多个第一触摸电极序列和沿与第一方向交叉的第二方向布置的多个第二触摸电极序列，并且与多个第一电极序列电绝缘。 第一触摸电极串联包括串联连接的多个第一触摸电极，第二触摸电极串联包括串联连接的多个第二触摸电极。 第一触摸电极具有第一杆部分和从第一杆部分的两侧向外延伸的多个第一分支部分。 第二触摸电极具有第二杆部分和从第二杆部分的两侧向外延伸的多个第二分支部分。

公开(公告)号：US10985196B2

公开(公告)日：2021-04-20

申请号：US14628444

申请日：2015-02-23

Applicant: LG Display Co., Ltd.

Inventor： Youngjang Lee ,  Kyungmo Son ,  Sohyung Lee ,  Hoyoung Jung ,  Moonho Park ,  Sungjin Lee

IPC: H01L27/12 ,  H01L29/786 ,  H01L27/32 ,  H01L29/04

Abstract: Provided are a thin film transistor substrate and a display using the same. A thin film transistor substrate includes: a substrate, a first thin film transistor disposed on the substrate, the first thin film transistor including: a polycrystalline semiconductor layer, a first gate electrode on the polycrystalline semiconductor layer, a first source electrode, and a first drain electrode, a second thin film transistor disposed on the substrate, the second thin film transistor including: a second gate electrode, an oxide semiconductor layer on the second gate electrode, a second source electrode, and a second drain electrode, an intermediate insulating layer including a nitride layer and an oxide layer on the nitride layer, the intermediate insulating layer being disposed on the first gate electrode and the second gate electrode and under the oxide semiconductor layer, and an etch-stopper layer disposed on the oxide semiconductor layer.

公开(公告)号：US10930790B2

公开(公告)日：2021-02-23

申请号：US15994765

申请日：2018-05-31

Applicant: LG Display Co., Ltd.

Inventor： SeungJin Kim ,  HeeSung Lee ,  Sohyung Lee ,  MinCheol Kim ,  JeongSuk Yang ,  JeeHo Park ,  Seoyeon Im

IPC: H01L29/786 ,  H01L27/12 ,  H01L29/24 ,  G09G3/3266 ,  H01L29/66 ,  H01L29/417 ,  G09G3/3291

Abstract: Disclosed are a thin film transistor (TFT) including an oxide semiconductor layer capable of being applied to high-resolution flat panel display devices requiring high-speed driving, a gate driver including the TFT, and a display device including the gate driver. The TFT includes first oxide semiconductor layer consisting of indium-gallium-zinc-tin oxide (IGZTO) and a second oxide semiconductor layer including indium-gallium-zinc oxide (IGZO). A content ratio (Ga/In) of gallium (Ga) to indium (In) of the second oxide semiconductor layer is higher than a content (Ga/In) of Ga to In of the first oxide semiconductor layer, and a content ratio (Zn/In) of zinc (Zn) to In of the second oxide semiconductor layer is higher than a content (Zn/In) of Zn to In of the first oxide semiconductor layer.

公开(公告)号：US10186528B2

公开(公告)日：2019-01-22

申请号：US14628357

申请日：2015-02-23

Applicant: LG Display Co., Ltd.

Inventor： Youngjang Lee ,  Kyungmo Son ,  Seongpil Cho ,  Jaehoon Park ,  Sohyung Lee ,  Sangsoon Noh ,  Moonho Park ,  Sungjin Lee ,  Seunghyo Ko ,  Mijin Jeong

IPC: H01L27/12 ,  H01L29/786 ,  H01L27/32

Abstract: Provided are a thin film transistor substrate and a display using the same. A thin film transistor substrate includes: a substrate, a first thin film transistor disposed at a first area of the substrate, the first thin film transistor including: a polycrystalline semiconductor layer, a first gate electrode on the polycrystalline semiconductor layer, a first source electrode, and a first drain electrode, a second thin film transistor disposed at a second area of the substrate, the second thin film transistor including: a second gate electrode, an oxide semiconductor layer on the second gate electrode, a second source electrode, and a second drain electrode, a nitride layer disposed on an area of the substrate, other than the second area, the nitride layer covering the first gate electrode, and an oxide layer disposed: over the first gate electrode and the second gate electrode, and under the oxide semiconductor layer.

公开(公告)号：US12048194B2

公开(公告)日：2024-07-23

申请号：US18151849

申请日：2023-01-09

Applicant: LG Display Co., Ltd.

Inventor： SeungJin Kim ,  Sohyung Lee

IPC: H01L29/786 ,  H10K59/12

CPC classification number: H10K59/12 ,  H01L29/78618 ,  H01L29/7869

Abstract: Disclosed is a display apparatus including a first thin film transistor (TFT) and a second thin film transistor having a bottom gate structure and including an oxide semiconductor layer. The first TFT may be used as a switching device and the second TFT may be used as a driving device, and these TFTs have different operation properties from each other. One or more embodiments of the present disclosure provides a method of arranging a plurality of TFTs having different properties in a display apparatus. This not only provides a display apparatus with TFTs integrated at a high density but also an efficient way of driving the display apparatus.

公开(公告)号：US11587992B2

公开(公告)日：2023-02-21

申请号：US17116800

申请日：2020-12-09

Applicant: LG Display Co., Ltd.

Inventor： SeungJin Kim ,  Sohyung Lee

IPC: H01L27/00 ,  H01L29/00 ,  H01L27/32 ,  H01L29/786

Abstract: Disclosed is a display apparatus including a first thin film transistor (TFT) and a second thin film transistor having a bottom gate structure and including an oxide semiconductor layer. The first TFT may be used as a switching device and the second TFT may be used as a driving device, and these TFTs have different operation properties from each other. One or more embodiments of the present disclosure provides a method of arranging a plurality of TFTs having different properties in a display apparatus. This not only provides a display apparatus with TFTs integrated at a high density but also an efficient way of driving the display apparatus.

公开(公告)号：US10529277B2

公开(公告)日：2020-01-07

申请号：US15991045

申请日：2018-05-29

Applicant: LG Display Co., Ltd.

Inventor： Sohyung Lee ,  Namyong Gong ,  Sungsoo Shin ,  Jungyul Yang ,  Heesung Lee

IPC: G09G3/3225

Abstract: An electroluminescence display is provided. The electroluminescence display comprises data lines and gate lines intersecting each other and pixels arranged in a matrix, wherein each of subpixels of each pixel comprises: a first driver configured to drive a light-emitting element by using a first EM switching element, which switches the current path between a power supply line to which a pixel driving voltage is applied and the light-emitting element in response to a first light-emission control signal, and a first driving element connected between the first EM switching element and the light-emitting element; and a second driver configured to drive the light-emitting element by using a second EM switching element, which switches the current path between the power supply line and the light-emitting element in response to a second light-emission control signal, and a second driving element connected between the second EM switching element and the light-emitting element.

公开(公告)号：US09519174B2

公开(公告)日：2016-12-13

申请号：US14049569

申请日：2013-10-09

Applicant: LG Display Co., Ltd.

Inventor： Dongsup Kim ,  Byungkoo Kang ,  Sohyung Lee ,  Sungyong Cho

IPC: G06F3/041 ,  G06K11/06 ,  G08C21/00 ,  G02F1/1333 ,  G06F3/044

CPC classification number: G02F1/13338 ,  G06F3/044 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: A touch screen panel includes a plurality of first touch electrode serials arranged in a first direction, a plurality of second touch electrode serials arranged in a second direction crossing the first direction, and an insulating layer insulating the first touch electrode serials and the second touch electrode serials. Each first touch electrode serial includes a plurality of first mesh patterns formed by an intersection of first metal lines. Each second touch electrode serial includes a plurality of second mesh patterns formed by an intersection of second metal lines. The first mesh patterns are connected to one another, and the second mesh patterns are separated from one another. The separated first mesh patterns are connected to one another through a bridge.

Abstract translation: 触摸屏面板包括沿第一方向布置的多个第一触摸电极序列，沿与第一方向交叉的第二方向布置的多个第二触摸电极序列和将第一触摸电极序列和第二触摸电极绝缘的绝缘层 连续剧 每个第一触摸电极串联包括由第一金属线的交点形成的多个第一网格图案。 每个第二触摸电极串联包括由第二金属线的相交形成的多个第二网格图案。 第一网格图案彼此连接，并且第二网格图案彼此分离。 分离的第一网格图案通过桥连接到彼此。