公开(公告)号：US10727447B2

公开(公告)日：2020-07-28

申请号：US16198205

申请日：2018-11-21

Applicant: LG Display Co., Ltd.

Inventor： Yong-Hoon Choi ,  Won-Hoe Koo ,  Woo-Ram Youn

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32

Abstract: An electroluminescent display device includes a thin film transistor disposed on a substrate; a passivation layer disposed on the thin film transistor; a plurality of metallic patterns disposed to be spaced apart from each other on the passivation layer; a reflective electrode disposed conforming to the shapes of the plurality of metallic patterns and a top surface of the passivation layer and including a plurality of protruding portions; an overcoat layer disposed on the passivation layer and the reflective electrode and including an opening configured to expose a top surface of each of the plurality of protruding portions; a first electrode disposed on the reflective electrode and the overcoat layer and electrically connected to the reflective electrode; an light-emitting layer disposed on the first electrode; and a second electrode disposed on the light-emitting layer.

公开(公告)号：US10651426B2

公开(公告)日：2020-05-12

申请号：US15822417

申请日：2017-11-27

Applicant: LG Display Co., Ltd.

Inventor： Han-Sun Park ,  Won-Hoe Koo ,  Ji-Hyang Jang

IPC: H01L51/52 ,  H01L27/32

Abstract: An OLED display device includes a first substrate including a plurality of sub-pixels each including an emission area and a non-emission area; organic light emitting diodes on the first substrate; a second substrate opposed to the first substrate; a black matrix and a color filter layer on one side of the second substrate; a spacer on the black matrix and overlapping or parallel to one of the plurality of the gate lines and the plurality of data lines; and a film layer on the spacer, wherein an air gap is provided between the second substrate and the film layer, and a part of the film layer is exposed by the air gap.

公开(公告)号：US10522789B2

公开(公告)日：2019-12-31

申请号：US16023106

申请日：2018-06-29

Applicant: LG Display Co., Ltd.

Inventor： Soo-Kang Kim ,  Won-Hoe Koo ,  Ji-Hyang Jang ,  So-Young Jo

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/20

Abstract: Disclosed is a light emitting display device which facilitates to improve light-extraction efficiency of pixels, and to maximize light-extraction efficiency of each pixel, wherein the light emitting display device includes a substrate having a first area and a second area, a planarization coating layer prepared on the substrate and configured to have a first curve pattern prepared on the first area, and a second curve pattern prepared on the second area, and an emission device prepared on the first curve pattern and the second curve pattern, wherein a thickness of the planarization coating layer overlapping the first curve pattern is different from a thickness of the planarization coating layer overlapping the second curve pattern, and each of the first curve pattern and the second curve pattern includes a plurality of protruding portions having an aspect ratio of 0.4˜0.6.

公开(公告)号：US20180175327A1

公开(公告)日：2018-06-21

申请号：US15846812

申请日：2017-12-19

Applicant: LG Display Co., Ltd.

Inventor： Ji-Hyang Jang ,  So-Young Jo ,  Won-Hoe Koo

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

CPC classification number: H01L51/5275 ,  H01L27/3258 ,  H01L51/5012 ,  H01L51/5209 ,  H01L51/5225

Abstract: Provided are an organic light-emitting diode (OLED) and an organic light-emitting device including the same. The OLED includes a first electrode, an organic emissive layer which includes a plurality of convex curves or a plurality of concave curves in a light-emitting region and of which a slope of an inclined plane of an upper region with respect to a horizontal line dividing a height of the plurality of convex curves into halves is greater than a slope of an inclined plane of a lower region thereof, and a second electrode provided on the organic emissive layer. Accordingly, the OLED and the organic light-emitting device including the same are capable of improving current efficiency.

公开(公告)号：US11812636B2

公开(公告)日：2023-11-07

申请号：US17678973

申请日：2022-02-23

Applicant: LG Display Co., Ltd.

Inventor： Ji-Hyang Jang ,  So-Young Jo ,  Won-Hoe Koo

IPC: H10K50/858 ,  H10K50/11 ,  H10K50/813 ,  H10K50/822 ,  H10K59/124

CPC classification number: H10K50/858 ,  H10K50/11 ,  H10K50/813 ,  H10K50/822 ,  H10K59/124

Abstract: Provided are an organic light-emitting diode (OLED) and an organic light-emitting device including the same. The OLED includes a first electrode, an organic emissive layer which includes a plurality of convex curves or a plurality of concave curves in a light-emitting region and of which a slope of an inclined plane of an upper region with respect to a horizontal line dividing a height of the plurality of convex curves into halves is greater than a slope of an inclined plane of a lower region thereof, and a second electrode provided on the organic emissive layer. Accordingly, the OLED and the organic light-emitting device including the same are capable of improving current efficiency.

公开(公告)号：US11289683B2

公开(公告)日：2022-03-29

申请号：US16898041

申请日：2020-06-10

Applicant: LG Display Co., Ltd.

Inventor： Ji-Hyang Jang ,  So-Young Jo ,  Won-Hoe Koo

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: Provided are an organic light-emitting diode (OLED) and an organic light-emitting device including the same. The OLED includes a first electrode, an organic emissive layer which includes a plurality of convex curves or a plurality of concave curves in a light-emitting region and of which a slope of an inclined plane of an upper region with respect to a horizontal line dividing a height of the plurality of convex curves into halves is greater than a slope of an inclined plane of a lower region thereof, and a second electrode provided on the organic emissive layer. Accordingly, the OLED and the organic light-emitting device including the same are capable of improving current efficiency.

公开(公告)号：US10693108B2

公开(公告)日：2020-06-23

申请号：US16109449

申请日：2018-08-22

Applicant: LG Display Co., Ltd.

Inventor： Jin-Tae Kim ,  Won-Hoe Koo ,  Yong-Hoon Choi

IPC: H01L51/52 ,  H01L27/32

Abstract: A light extraction pattern is disposed in each hole of a first electrode, or a first electrode including round portions and pattern portions is disposed so that light trapped in an emission layer can be output uniformly. In this way, the light extraction efficiency can be effectively improved, and occurrence of a black area can be prevented.

公开(公告)号：US10424761B2

公开(公告)日：2019-09-24

申请号：US16142511

申请日：2018-09-26

Applicant: LG Display Co., Ltd.

Inventor： Yong-Hoon Choi ,  Won-Hoe Koo

IPC: H01L27/32 ,  H01L51/52 ,  H01L31/0236

Abstract: An electroluminescent display device includes a substrate including an emissive area and a non-emissive area, a plurality of protrusions over the substrate and in the emissive area, each of the plurality of protrusions spaced apart from each other with an air gap therebetween, a high-viscosity material layer on the plurality of protrusions and the air gaps, a first electrode on the high-viscosity material layer, an emitting layer on the first electrode, and a second electrode on the emitting layer.

公开(公告)号：US10418520B2

公开(公告)日：2019-09-17

申请号：US16023930

申请日：2018-06-29

Applicant: LG Display Co., Ltd.

Inventor： Soo-Kang Kim ,  Won-Hoe Koo ,  Ji-Hyang Jang ,  So-Young Jo

IPC: H01L33/20 ,  H01L33/58 ,  H01L27/12 ,  H01L33/50 ,  H01L51/00

Abstract: A light emitting display device includes: a light emitting element that includes a light emitting layer between a first electrode and a second electrode; a wavelength conversion layer overlapping the light emitting element; and an uneven layer that includes a plurality of furrows between the light emitting element and the wavelength conversion layer, wherein a shortest distance between a bottom surface of the plurality of furrows and the wavelength conversion layer is 0.1 um or greater.

公开(公告)号：US11925059B2

公开(公告)日：2024-03-05

申请号：US16917491

申请日：2020-06-30

Applicant: LG Display Co., Ltd.

Inventor： Hyun-Soo Lim ,  Kang-Ju Lee ,  Soo-Kang Kim ,  Won-Hoe Koo ,  Min-Geun Choi

IPC: H10K50/856 ,  H10K50/813 ,  H10K50/858 ,  H10K59/122 ,  H10K102/00

CPC classification number: H10K50/856 ,  H10K50/813 ,  H10K50/858 ,  H10K59/122 ,  H10K2102/3026

Abstract: An organic light emitting diode display device includes a substrate having an emitting area and a non-emitting area. An insulating layer is on the substrate, and the insulating layer includes a plurality of convex portions, a plurality of connecting portions and at least one wall in the emitting area. A height of the at least one wall is greater than a height of the plurality of convex portions. A first electrode is on the substream, emitting layer is on the first electrode, a second electrode is on the emitting layer. The first electrode, the emitting layer and the second electrode constitute a light emitting diode.