公开(公告)号：US11489016B2

公开(公告)日：2022-11-01

申请号：US16726450

申请日：2019-12-24

Applicant: LG Display Co., Ltd.

Inventor： YuCheol Yang ,  Suhyeon Kim ,  MoonSoo Kim

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  G02B27/01 ,  G06F1/16

Abstract: A display device comprises a substrate provided with a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel, a first electrode provided on the substrate, an organic light emitting layer arranged on the first electrode, and a second electrode arranged on the organic light emitting layer, wherein the organic light emitting layer includes a first organic light emitting layer and a second organic light emitting layer, the first organic light emitting layer and the second organic light emitting layer are arranged on the first subpixel, the second subpixel, and the fourth subpixel, only the second organic light emitting layer is arranged on the third subpixel, only the first organic light emitting layer emits light on the first subpixel and the second subpixel, only the second organic light emitting layer emits light on the third subpixel, and both of the first organic light emitting layer and the second light emitting layer emit light on the fourth subpixel. Since the organic light emitting layer may emit light in accordance with one-stack voltage even in case of a two-stack structure of the first subpixel and the second subpixel, overall power consumption may be reduced.

公开(公告)号：US12185596B2

公开(公告)日：2024-12-31

申请号：US17553735

申请日：2021-12-16

Applicant: LG Display Co., Ltd.

Inventor： Saemleenuri Lee ,  Dohong Kim ,  Suhyeon Kim ,  Seokwon Ji ,  MoonSoo Kim ,  Sungbin Shim

IPC: H10K59/124 ,  H10K50/813 ,  H10K50/822 ,  H10K50/844 ,  H10K59/131 ,  H10K50/818 ,  H10K50/828

Abstract: A display device may prevent external moisture from being permeated thereinto. The display device comprises a substrate provided with a display area for displaying an image by a plurality of subpixels, a plurality of first electrodes provided in each of the plurality of subpixels over the substrate, a light emitting layer provided over the plurality of first electrodes, a second electrode provided over the light emitting layer, and a common power line provided between the substrate and the first electrodes, including a contact area to which the second electrode is connected. Each of the plurality of first electrodes is provided with a first opening area in an edge area adjacent to the contact area of the common power line.

公开(公告)号：US12101970B2

公开(公告)日：2024-09-24

申请号：US17519325

申请日：2021-11-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungbin Shim ,  Sungbai Lee ,  MoonSoo Kim

IPC: H10K59/123 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00 ,  H10K102/00

CPC classification number: H10K59/123 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00 ,  H10K71/831 ,  H10K2102/341

Abstract: A light emitting display device includes a light emitting element including a pixel electrode, a common electrode, and a light emitting layer interposed between the pixel electrode and the common electrode, and a pixel circuit electrically connected to the pixel electrode of the light emitting element, wherein the pixel electrode may include a first pixel electrode portion, a second pixel electrode portion spaced apart from the first pixel electrode portion, a circuit contact portion connected to the pixel circuit, a first electrode connection portion connected or disconnected between the first pixel electrode portion and the circuit contact portion, and a second electrode connection portion connected or disconnected between the second pixel electrode portion and the circuit contact portion.

公开(公告)号：US20230172010A1

公开(公告)日：2023-06-01

申请号：US18054505

申请日：2022-11-10

Applicant: LG Display Co., Ltd.

Inventor： MoonSoo Kim ,  Dohong Kim

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3258 ,  H01L51/5209

Abstract: A display device includes a substrate, a first driving transistor disposed over the substrate and included in a first subpixel, an overcoat layer over the first driving transistor, a first anode disposed over the first driving transistor and included in the first subpixel, a first emitting layer on the first anode, and a cathode on the first emitting layer. The first anode includes a first electrode part in a first area of the first subpixel, a second electrode part in a second area of the first subpixel different from the first area, and a first wire part connecting the first and second electrode parts. The overcoat layer includes a first trench in an area overlapping the first wire part. The first wire part includes a first bend disposed over the overcoat layer and bent along first and second inner side surfaces and a bottom surface of the first trench.

公开(公告)号：US20220208887A1

公开(公告)日：2022-06-30

申请号：US17560123

申请日：2021-12-22

Applicant: LG Display Co., Ltd.

Inventor： DooHyun Yoon ,  HyeSeon Eom ,  Hyoung-Su Kim ,  MoonSoo Kim

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device may reduce or minimize a size of a light emission area that becomes a dark spot due to particles. The display device includes a substrate provided with a display area for displaying an image by subpixels, first electrodes provided in each of the subpixels over the substrate, driving transistors provided between the substrate and the first electrodes and coupled to each of the first electrodes, a light emitting layer provided over the first electrodes, and a second electrode provided over the light emitting layer. Each of the first electrodes includes divided electrodes spaced apart from each other, a transistor contact portion coupled with the driving transistor through a contact hole, and connection electrodes coupling each of the plurality of divided electrodes with the transistor contact portion.

公开(公告)号：US20240387478A1

公开(公告)日：2024-11-21

申请号：US18649409

申请日：2024-04-29

Applicant: LG Display Co, Ltd.

Inventor： Daehee Kim ,  MoonSoo Kim

IPC: H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L33/56

Abstract: A light emitting display apparatus includes a substrate including a display area and a non-display area, a light emitting layer provided in a pixel in the display area, a cathode on the light emitting layer, and an auxiliary electrode connected to the cathode through a contact hole in the pixel, and a fluorine-based protective layer that covers an upper surface, a lower surface, and a side surface of a contact-area light emitting layer that is in the contact hole.

公开(公告)号：US11925060B2

公开(公告)日：2024-03-05

申请号：US17134454

申请日：2020-12-27

Applicant: LG Display Co., Ltd.

Inventor： MoonSoo Kim ,  Suhyeon Kim

IPC: H10K50/856 ,  H10K59/122 ,  H10K59/35 ,  H10K59/65

CPC classification number: H10K50/856 ,  H10K59/122 ,  H10K59/353 ,  H10K59/65

Abstract: A display apparatus includes a display panel having a first area and a second area, a main body supporting the display panel, an auxiliary member arranged in the main body, and a reflective member arranged between the auxiliary member and the display panel, wherein the reflective member may movably be provided to overlap the first area or the second area. Therefore, light emitted from the display panel toward the inside of the main body may be reflected in the outside, and a luminance difference between the first area and the second area of the display panel may be prevented from occurring, whereby a user's satisfaction for an image may be enhanced.

公开(公告)号：US12284886B2

公开(公告)日：2025-04-22

申请号：US17516116

申请日：2021-11-01

Applicant: LG Display Co., Ltd.

Inventor： MoonSoo Kim ,  Sungbai Lee ,  Suhyeon Kim

IPC: H10K59/131 ,  H10K50/814 ,  H10K50/818 ,  H10K50/824

Abstract: An electroluminescence display device comprises a substrate including a pixel area having a light emitting portion and a non-light emitting portion adjacent to the light emitting portion; a first electrode in the light emitting portion of the pixel area; an auxiliary electrode in the non-light emitting portion of the pixel area and spaced apart from the first electrode; a light emitting layer on the first electrode; a second electrode on the light emitting layer in the pixel area and connected to the light emitting layer; and an auxiliary power electrode below the first electrode and electrically connected with the auxiliary electrode.

公开(公告)号：US12156427B2

公开(公告)日：2024-11-26

申请号：US17555748

申请日：2021-12-20

Applicant: LG Display Co., Ltd.

Inventor： MoonSoo Kim ,  DoYoung Kum

IPC: H10K59/121 ,  H10K59/122 ,  H10K59/131 ,  H10K59/35

Abstract: A display device may improve an aperture ratio. The display device comprises a substrate provided with transmissive areas and a plurality of subpixels disposed between the transmissive areas, a driving transistor provided in each of the plurality of subpixels, an anode electrode provided in each of the plurality of subpixels and coupled with the driving transistor through an anode contact hole, a bank overlapped with at least a portion of the anode contact hole over the anode electrode, a light emitting layer provided over the anode electrode and the bank, and a cathode electrode provided over the light emitting layer. An end of at least one side of the anode electrode is exposed without being covered by the bank.

公开(公告)号：US20220208913A1

公开(公告)日：2022-06-30

申请号：US17553735

申请日：2021-12-16

Applicant: LG Display Co., Ltd.

Inventor： Saemleenuri Lee ,  Dohong Kim ,  Suhyeon Kim ,  Seokwon Ji ,  MoonSoo Kim ,  Sungbin Shim

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device may prevent external moisture from being permeated thereinto. The display device comprises a substrate provided with a display area for displaying an image by a plurality of subpixels, a plurality of first electrodes provided in each of the plurality of subpixels over the substrate, a light emitting layer provided over the plurality of first electrodes, a second electrode provided over the light emitting layer, and a common power line provided between the substrate and the first electrodes, including a contact area to which the second electrode is connected. Each of the plurality of first electrodes is provided with a first opening area in an edge area adjacent to the contact area of the common power line.