公开(公告)号：US20210167163A1

公开(公告)日：2021-06-03

申请号：US17110146

申请日：2020-12-02

Applicant: LG Display Co., Ltd.

Inventor： HoYoung JEONG ,  Harkjin KIM

IPC: H01L27/32 ,  H04N5/225 ,  G06F3/041

Abstract: A display device includes a display panel including a display area on which an image is displayed, a substrate, and an electrode located over the substrate and disposed in the display area; and a camera photographing a front of the display panel without being exposed to the front surface of the display panel, being disposed under the display area of the display panel, and overlapping with a first area in the display area, wherein the electrode overlaps with the first area, and wherein the electrode comprises a semi-transmissive layer positioned over the substrate, an optical path compensation layer positioned on the semi-transmissive layer, and a metal layer positioned on the optical path compensation layer.

公开(公告)号：US20240087538A1

公开(公告)日：2024-03-14

申请号：US18242926

申请日：2023-09-06

Applicant: LG Display Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University

Inventor： Harkjin KIM ,  Kwanghwan JI ,  Byong-Deok CHOI ,  Bum Sik KIM ,  Dong Young KIM ,  Yong Duck KIM ,  June Hee LEE

IPC: G09G3/3283

CPC classification number: G09G3/3283 ,  G09G2320/02 ,  G09G2330/021

Abstract: A display device according to an exemplary embodiment of the present disclosure includes a light emitting diode and a pixel driving circuit which drives the light emitting diode, the pixel driving circuit includes a driving transistor which applies a driving current to the light emitting diode, a first transistor which applies a first reference voltage to a gate electrode of the driving transistor, a second transistor which applies a data voltage to the gate electrode of the driving transistor, a third transistor which applies a second reference voltage to a source electrode of the driving transistor, and a storage capacitor connected to the gate electrode and the source electrode of the driving transistor. According to the present disclosure, the threshold voltage Vth and the mobility of the driving transistors are internally compensated to improve an image quality.

公开(公告)号：US20230207701A1

公开(公告)日：2023-06-29

申请号：US18055726

申请日：2022-11-15

Applicant: LG Display Co., Ltd. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY

Inventor： Jae Kyeong JEONG ,  Kwanghwan JI ,  Harkjin KIM ,  Minhoe CHO

IPC: H01L29/786 ,  H01L27/12

CPC classification number: H01L29/7869 ,  H01L27/3262 ,  H01L27/1225

Abstract: A thin-film transistor includes a gate electrode, and an active layer insulated from the gate electrode by a gate insulating layer, and the active layer includes a quasi-superlattice structure with a first oxide semiconductor material and a second oxide semiconductor material having a larger bandgap than the first oxide semiconductor material alternately stacked at least twice. A display apparatus includes a thin-film transistor including an active layer of a quasi-superlattice structure for each pixel.

公开(公告)号：US20220367524A1

公开(公告)日：2022-11-17

申请号：US17743309

申请日：2022-05-12

Applicant: LG Display Co., Ltd. ,  Yonsei University Industry-Academic Cooperation Foundation

Inventor： Jang-Ung PARK ,  Harkjin KIM ,  Kwanghwan JI ,  Hyobeom KIM ,  Younggeun PARK

IPC: H01L27/12 ,  C09J189/04 ,  C09J9/02 ,  G09F9/30 ,  H01B1/22 ,  H01B5/14

Abstract: The present disclosure relates to an anisotropic conductive film capable of electrode bonding even at a low temperature and maintaining excellent conductivity and flexibility, a manufacturing method thereof, and a display device using the same. The anisotropic conductive film contains conductive microcapsules including a liquid metal in a binder layer.

公开(公告)号：US20240215361A1

公开(公告)日：2024-06-27

申请号：US18601140

申请日：2024-03-11

Applicant: LG DISPLAY CO., LTD.

Inventor： HoYoung JEONG ,  Harkjin KIM

IPC: H10K59/131 ,  G06F3/041 ,  G06F3/044 ,  G06V40/13 ,  H04N23/57 ,  H10K59/126 ,  H10K59/40

CPC classification number: H10K59/131 ,  G06F3/0412 ,  G06F3/04164 ,  H04N23/57 ,  H10K59/126 ,  G06F3/0446 ,  G06F2203/04111 ,  G06V40/1306 ,  H10K59/40

Abstract: A display device includes a display panel including a display area on which an image is displayed, a substrate, and an electrode located over the substrate and disposed in the display area; and a camera photographing a front of the display panel without being exposed to the front surface of the display panel, being disposed under the display area of the display panel, and overlapping with a first area in the display area, wherein the electrode overlaps with the first area, and wherein the electrode comprises a semi-transmissive layer positioned over the substrate, an optical path compensation layer positioned on the semi-transmissive layer, and a metal layer positioned on the optical path compensation layer.

公开(公告)号：US20230387138A1

公开(公告)日：2023-11-30

申请号：US18324103

申请日：2023-05-25

Applicant: LG Display Co., Ltd. ,  IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)

Inventor： Harkjin KIM ,  Kwanghwan JI ,  Jae Kyeong JEONG ,  Do hyun KIM ,  Dong Young KIM ,  Jeongeun OH

IPC: H01L27/12

CPC classification number: H01L27/1225

Abstract: Embodiments of the present disclosure relate to a thin film transistor array substrate and a display device. Since a wavy structure is formed through heat treatment in a structure in which a first buffer layer made of an organic material, a second buffer layer made of a metal oxide and a third buffer layer made of an inorganic material are stacked, it is possible to provide a display device including an array substrate which has stretchable characteristics through the wavy structure while preventing a crack from occurring in the third buffer layer and preventing characteristics of thin film transistors disposed on the third buffer layer from degrading.

公开(公告)号：US20230225166A1

公开(公告)日：2023-07-13

申请号：US18174406

申请日：2023-02-24

Applicant: LG Display Co., Ltd.

Inventor： HoYoung JEONG ,  Harkjin KIM

IPC: H10K59/40 ,  H10K59/80 ,  H10K59/126 ,  G06F3/041 ,  G06F3/044

CPC classification number: H10K59/40 ,  G06F3/0412 ,  G06F3/0446 ,  H10K59/126 ,  H10K59/8791 ,  H10K59/80524 ,  G06F2203/04107 ,  G06F2203/04111 ,  G06F2203/04112 ,  G06V40/13

Abstract: A display device includes a display panel including a display area on which an image is displayed, a substrate, and an electrode located over the substrate and disposed in the display area; and a camera photographing a front of the display panel without being exposed to the front surface of the display panel, being disposed under the display area of the display panel, and overlapping with a first area in the display area, wherein the electrode overlaps with the first area, and wherein the electrode comprises a semi-transmissive layer positioned over the substrate, an optical path compensation layer positioned on the semi-transmissive layer, and a metal layer positioned on the optical path compensation layer.

公开(公告)号：US20200161591A1

公开(公告)日：2020-05-21

申请号：US16669182

申请日：2019-10-30

Applicant: LG Display Co., Ltd.

Inventor： Harkjin KIM ,  Hoyoung JEONG ,  Shin-Bok LEE

IPC: H01L51/52 ,  H01L51/50

Abstract: An electro-luminescence display apparatus comprises a transparent substrate; a thin-film transistor array disposed on the transparent substrate; a first electrode disposed on the thin-film transistor array; an electro-luminescence diode disposed on the first electrode; a second electrode disposed on the electro-luminescence diode; an encapsulation unit disposed on the second electrode; and an external light-absorbing layer disposed on the encapsulation unit and absorbing external light that passes through the transparent substrate.