公开(公告)号：US20230413634A1

公开(公告)日：2023-12-21

申请号：US18210399

申请日：2023-06-15

Applicant: LG Display Co., Ltd.

Inventor： YoungWook LEE ,  GiSang HONG ,  JongWon LEE ,  Jungmin KIM ,  Hoseung LEE

IPC: H10K59/35 ,  H10K59/80 ,  H10K59/38

CPC classification number: H10K59/351 ,  H10K59/878 ,  H10K59/38 ,  H10K59/80515

Abstract: A display apparatus may enhance light extraction efficiency, prevent the damage of an emission layer, and prevent the delay of an image signal. The display apparatus may include a substrate having a plurality of subpixels defined thereon; a planarization layer on the substrate; a protrusion portion on the planarization layer, the protrusion portion including an upper surface and a lateral surface; and a reflection portion on the lateral surface of the protrusion portion.

公开(公告)号：US20240213431A1

公开(公告)日：2024-06-27

申请号：US18516581

申请日：2023-11-21

Applicant: LG Display Co., Ltd.

Inventor： GiSang HONG ,  EunHye LEE ,  Jungmin KIM

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/124 ,  H01L27/1255

Abstract: According to an aspect of the present disclosure, a display device includes a substrate having an active area and a non-active area where sub pixels are disposed in the active area, a first assembly line and a second assembly line disposed in the sub pixels and being separated from each other to form a separated space, a light emitting diode disposed in the sub pixels and disposed on the first assembly line and the second assembly line, and a capacitor disposed below the first assembly line and the second assembly line. The capacitor is disposed so as to overlap the separated space formed between the first assembly line and the second assembly line. By this configuration, the light extraction of the display device can be improved.

公开(公告)号：US20240155922A1

公开(公告)日：2024-05-09

申请号：US18484162

申请日：2023-10-10

Applicant: LG Display Co., Ltd.

Inventor： GiSang HONG ,  SungKi KIM ,  JongWon LEE ,  YoungWook LEE ,  Jungmin KIM ,  Hoseung LEE

IPC: H10K59/80 ,  G09G3/3233 ,  H10K59/122 ,  H10K59/131 ,  H10K59/88

CPC classification number: H10K59/878 ,  G09G3/3233 ,  H10K59/122 ,  H10K59/131 ,  H10K59/88 ,  G09G2300/0842

Abstract: Embodiments of the disclosure relate to a display device. Specifically, there may be provided a display device capable of enhancing light extraction efficiency by reducing the distance between the organic light emitting layer and the side reflection layer by comprising a substrate including a plurality of subpixels, an overcoat layer disposed on the substrate and having a recess positioned between the subpixels, a first electrode disposed to cover an upper surface of the overcoat layer and an inclined surface of the recess and including a transparent conductive material, a reflection layer disposed on the first electrode on the inclined surface of the recess and including a metal or metal alloy, and a bank layer positioned in the recess and disposed on the reflection layer.

公开(公告)号：US20250048848A1

公开(公告)日：2025-02-06

申请号：US18792178

申请日：2024-08-01

Applicant: LG Display Co., Ltd.

Inventor： Hoseung LEE ,  JongWon LEE ,  YoungWook LEE ,  HeeJung YANG ,  GiSang HONG ,  SungKi KIM

IPC: H10K59/122 ,  H10K59/80

Abstract: A display panel can include a plurality of subpixels disposed on a substrate, an insulating layer disposed on the substrate, the insulating layer including at least one recess portion in at least one subpixel among the plurality of subpixels, an anode electrode disposed on the insulating layer, the anode electrode not overlapping the recess portion, a bank disposed on a portion of an upper surface of the anode electrode and the insulating layer, the bank having an opening in each of the plurality of subpixels, a light emitting layer disposed in the opening, and a cathode electrode disposed on the light emitting layer. Also, each of the light emitting layer and the cathode electrode overlaps with the anode electrode and the recess portion of the insulating layer in the opening, and the cathode electrode has at least one stepped portion in the opening of the bank.

公开(公告)号：US20240222585A1

公开(公告)日：2024-07-04

申请号：US18396510

申请日：2023-12-26

Applicant: LG Display Co., Ltd.

Inventor： EunHye LEE ,  GiSang HONG ,  Hyeonchul IM

IPC: H01L33/62 ,  H01L25/16

CPC classification number: H01L33/62 ,  H01L25/167

Abstract: According to an aspect of the present disclosure, a display device includes a substrate in which a plurality of sub pixels is defined; a light emitting diode disposed on the substrate in each of the plurality of sub pixels; and a planarization layer which covers the light emitting diode and includes a first contact hole overlapping the light emitting diode. The first contact hole is formed to have a width which is narrowed from an upper portion of the first contact hole toward a lower portion of the first contact hole. Accordingly, the first contact hole is formed to have a step shape so that the exposure of the side surface part of the light emitting diode through the first contact hole and the disconnection of the pixel electrode may be minimized.

公开(公告)号：US20240222340A1

公开(公告)日：2024-07-04

申请号：US18240274

申请日：2023-08-30

Applicant: LG DISPLAY CO., LTD.

Inventor： GiSang HONG ,  Jinkwon PARK

IPC: H01L25/16 ,  H01L25/075 ,  H01L27/12 ,  H01L33/38 ,  H01L33/62

CPC classification number: H01L25/167 ,  H01L25/0753 ,  H01L27/1255 ,  H01L33/382 ,  H01L33/62

Abstract: A display device includes a thin-film transistor disposed on a substrate including an active layer, a gate electrode, a first electrode pattern, and a second electrode pattern; an insulating layer is disposed on the thin-film transistor; a barrier layer is disposed on the insulating layer; a planarization layer is disposed on the barrier layer; and a first electrode is disposed on the planarization layer, wherein the barrier layer is electrically connected to the first electrode pattern through the first electrode.

公开(公告)号：US20240260418A1

公开(公告)日：2024-08-01

申请号：US18510280

申请日：2023-11-15

Applicant: LG Display Co., Ltd.

Inventor： SungKi KIM ,  GiSang HONG ,  JongWon LEE ,  YoungWook LEE ,  Jungmin KIM ,  Hoseung LEE

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/38

CPC classification number: H10K59/878 ,  H10K59/122 ,  H10K59/38 ,  H10K59/351 ,  H10K2102/3023

Abstract: Embodiments of the disclosure relate to a display device. Specifically, there may be provided a display device in which the planarization layer includes a convex portion, an inclined surface, and a slit portion to effectively extract the light from the display device to the outside to provide enhanced light efficiency, and the lower protection metal is disposed not to overlap the inclined surface to mitigate deterioration of luminance in the direction of the side viewing angle.

公开(公告)号：US20240130166A1

公开(公告)日：2024-04-18

申请号：US18484157

申请日：2023-10-10

Applicant: LG Display Co., Ltd.

Inventor： GiSang HONG ,  SungKi KIM ,  JongWon LEE ,  YoungWook LEE ,  Jungmin KIM ,  Hoseung LEE

IPC: H10K59/122 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/8792

Abstract: Embodiments of the disclosure relate to a display device. Specifically, there may be provided a display device that comprises a substrate having a plurality of subpixels and an overcoat layer disposed on the substrate, wherein the overcoat layer includes a recess disposed between the subpixels, and wherein a transparent inorganic bank layer and an opaque bank layer are disposed in the recess, thereby preventing outgassing or hydrogen migration, enhancing side light extraction efficiency, reducing or minimizing reflection by external light even without providing a polarizing plate, preventing deterioration of visibility and contrast ratio, and enhancing luminance.

公开(公告)号：US20230082560A1

公开(公告)日：2023-03-16

申请号：US17873575

申请日：2022-07-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Jungcheol SHIN ,  SungKi KIM ,  GiSang HONG ,  YoungWook LEE

IPC: H01L33/56 ,  H01L33/62

Abstract: A display device includes a transistor disposed over a substrate, a planarization layer disposed over the transistor, a light-emitting element disposed over the planarization layer; and a plurality of insulating layers disposed between the substrate and the light-emitting element, and at least one of the planarization layer and the plurality of insulating layers is a hydrogen blocking layer doped with a hydrogen capture material.

公开(公告)号：US20230076860A1

公开(公告)日：2023-03-09

申请号：US17866931

申请日：2022-07-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Jungcheol SHIN ,  Byungjin KIM ,  GiSang HONG ,  YoungWook LEE ,  Jinkwon PARK

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device includes a substrate including a display area and a non-display area; a first overcoating layer disposed on the substrate and including a base portion and a protruding portion protruding from the base portion; a first hydrogen blocking layer disposed on a top surface of the protruding portion in the display area; a first electrode covering the base portion and the first hydrogen blocking layer; a bank disposed on a part of the first electrode; an organic layer disposed on the first electrode and the bank; and a second electrode disposed on the organic layer.