公开(公告)号：US11069879B2

公开(公告)日：2021-07-20

申请号：US16450174

申请日：2019-06-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Jintae Kim ,  Sookang Kim ,  Soyoung Jo ,  Wonhoe Koo ,  Jihyang Jang ,  Hyunsoo Lim ,  Mingeun Choi

IPC: H01L51/52 ,  H01L27/32

Abstract: Disclosed is an organic light emitting diode display device. The disclosed organic light emitting diode display device includes an overcoat layer disposed on a substrate that is divided into an emissive area and a non-emissive area, and has multiple micro lenses in the emissive area and at least one depression in the non-emissive area. The organic light emitting diode display device further includes: a first electrode disposed on the overcoat layer, wherein the first electrode is disposed in the entire emissive area and in a part of the non-emissive area; a bank pattern disposed in the non-emissive area so as to be superposed on the depression; an organic light emitting layer disposed on the substrate; and a second electrode disposed on the organic light emitting layer. Accordingly, the organic light emitting diode display device may prevent light leakage.

公开(公告)号：US10522659B2

公开(公告)日：2019-12-31

申请号：US16035249

申请日：2018-07-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunsoo Lim ,  KangJu Lee ,  Sookang Kim ,  Wonhoe Koo ,  Jihyang Jang ,  Mingeun Choi

IPC: H01L29/66 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  H01L25/075 ,  H01L27/12 ,  H05B33/08

Abstract: An array substrate for a display device is disclosed. The array substrate includes a substrate comprising a plurality of subpixels, at least one of which is a white subpixel. The array substrate also includes an insulating layer disposed on the substrate in each of the subpixels and a plurality of color filter layers disposed on the insulating layer, each of the color filter layers being disposed respectively in a corresponding one of the subpixels. At least two of the color filter layers have a same color and are respectively disposed in the white subpixel and in at least one of the subpixels adjacent to the white subpixel. The insulating layer has a slope at a boundary between the white subpixel and the at least one of the subpixels adjacent to the white subpixel.

公开(公告)号：US10050127B2

公开(公告)日：2018-08-14

申请号：US15638840

申请日：2017-06-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunsoo Lim ,  KangJu Lee ,  Sookang Kim ,  Wonhoe Koo ,  Jihyang Jang ,  Mingeun Choi

IPC: H01L29/66 ,  G02F1/1343 ,  G02F1/1362 ,  H01L25/075 ,  H01L27/12 ,  H05B33/08

Abstract: An array substrate for a display device is disclosed. The array substrate includes a substrate comprising a plurality of subpixels, at least one of which is a white subpixel. The array substrate also includes an insulating layer disposed on the substrate in each of the subpixels and a plurality of color filter layers disposed on the insulating layer, each of the color filter layers being disposed respectively in a corresponding one of the subpixels. At least two of the color filter layers have a same color and are respectively disposed in the white subpixel and in at least one of the subpixels adjacent to the white subpixel. The insulating layer has a slope at a boundary between the white subpixel and the at least one of the subpixels adjacent to the white subpixel.

公开(公告)号：US10319796B2

公开(公告)日：2019-06-11

申请号：US15968594

申请日：2018-05-01

Applicant: LG Display Co., Ltd.

Inventor： Jihyang Jang ,  Sookang Kim ,  Soyoung Jo ,  Wonhoe Koo ,  Hyunsoo Lim ,  Mingeun Choi

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light emitting display device includes an overcoating layer on a substrate; a first electrode on the overcoating layer; a bank layer on the overcoating layer and the first electrode, the bank layer including an opening through which the first electrode is exposed; a pattern layer having an island shape on the exposed portion of the first electrode; an organic emission layer on the first electrode and the pattern layer; and a second electrode on the organic emission layer.

公开(公告)号：US10096659B2

公开(公告)日：2018-10-09

申请号：US15394628

申请日：2016-12-29

Applicant: LG Display Co., Ltd.

Inventor： Sookang Kim ,  Soyoung Jo ,  Wonhoe Koo ,  Jihyang Jang ,  Hyunsoo Lim ,  Mingeun Choi

IPC: H01L27/32 ,  H01L51/52

Abstract: The present disclosure includes a top emission type organic light emitting diode display device. The top emission type organic light emitting diode display device of the disclosed present disclosure includes an overcoating layer disposed on a substrate and including a plurality of convex portions or a plurality of concave portions in which a full width at half maximum is greater than a radius, a first electrode disposed on the overcoating layer, an organic light emitting layer disposed on the first electrode, and a second electrode disposed on the organic light emitting layer.

公开(公告)号：US09978814B2

公开(公告)日：2018-05-22

申请号：US15296941

申请日：2016-10-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Jihyang Jang ,  KangJu Lee ,  SeungRyong Joung ,  Hansun Park ,  Sookang Kim ,  Soyoung Jo ,  Seongsu Jeon ,  Wonhoe Koo ,  Hyunsoo Lim ,  JeaHo Park ,  Mingeun Choi ,  Hyunjoo Kim ,  Wooram Youn

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L27/3213 ,  H01L27/322 ,  H01L27/3272 ,  H01L51/5275 ,  H01L51/56

Abstract: An organic light-emitting display device. A substrate is divided into a plurality of subpixels generating different colors of light. A light leakage prevention layer is disposed on a portion of the substrate corresponding to a light-emitting area of at least one subpixel of the plurality of subpixels. An overcoat layer is disposed on a portion of the substrate corresponding to at least one subpixel of the plurality of subpixels, and includes microlenses having a plurality of concave portions or a plurality of convex portions. An organic electroluminescent device is disposed on the overcoat layer.

公开(公告)号：US09620570B2

公开(公告)日：2017-04-11

申请号：US14753262

申请日：2015-06-29

Applicant: LG Display Co., Ltd.

Inventor： Wonhoe Koo ,  BongChul Kim ,  KangJu Lee ,  Sookang Kim ,  Jihyang Jang ,  Hyunsoo Lim

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L27/322 ,  H01L27/3258 ,  H01L51/5209 ,  H01L51/5225 ,  H01L51/5275 ,  H01L51/5281

Abstract: Provided are an organic light emitting display device and a method for manufacturing the same. A color filter is disposed on a substrate. An overcoating layer is disposed on the color filter and includes a plurality of protrusions or a plurality of recesses. The plurality of protrusions and the plurality of recesses are disposed on the color filter to be overlapped with the color filter. A buffer layer for reducing step difference is disposed on the overcoating layer. The buffer layer has a higher refractive index than the overcoating layer and reduces a step difference caused by the plurality of protrusions and the plurality of recesses. An organic light emitting element including an anode, an organic light emitting layer, and a cathode is disposed on the buffer layer. Since the buffer layer has a higher refractive index than the overcoating layer, light extraction efficiency can be increased.

公开(公告)号：US11049919B2

公开(公告)日：2021-06-29

申请号：US16802386

申请日：2020-02-26

Applicant: LG Display Co., Ltd.

Inventor： Jihyang Jang ,  Sookang Kim ,  Soyoung Jo ,  Wonhoe Koo ,  Hyunsoo Lim ,  Mingeun Choi

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light emitting display device includes an overcoating layer on a substrate; a first electrode on the overcoating layer; a bank layer on the overcoating layer and the first electrode, the bank layer including an opening through which the first electrode is exposed; a pattern layer having an island shape on the exposed portion of the first electrode; an organic emission layer on the first electrode and the pattern layer; and a second electrode on the organic emission layer.

公开(公告)号：US20180247987A1

公开(公告)日：2018-08-30

申请号：US15968594

申请日：2018-05-01

Applicant: LG Display Co., Ltd.

Inventor： Jihyang Jang ,  Sookang Kim ,  Soyoung Jo ,  Wonhoe Koo ,  Hyunsoo Lim ,  Mingeun Choi

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3246 ,  H01L27/322 ,  H01L27/3258 ,  H01L27/326 ,  H01L27/3272 ,  H01L51/5209 ,  H01L51/5225 ,  H01L51/5275 ,  H01L2251/5315

Abstract: An organic light emitting display device includes an overcoating layer on a substrate; a first electrode on the overcoating layer; a bank layer on the overcoating layer and the first electrode, the bank layer including an opening through which the first electrode is exposed; a pattern layer having an island shape on the exposed portion of the first electrode; an organic emission layer on the first electrode and the pattern layer; and a second electrode on the organic emission layer.

公开(公告)号：US10008697B2

公开(公告)日：2018-06-26

申请号：US15252053

申请日：2016-08-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Jihyang Jang ,  Sookang Kim ,  Soyoung Jo ,  Wonhoe Koo ,  Hyunsoo Lim

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/56 ,  H01L27/32

CPC classification number: H01L51/5275 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/3258 ,  H01L51/5012 ,  H01L51/5206 ,  H01L51/5209 ,  H01L51/5221 ,  H01L51/5225 ,  H01L51/5271 ,  H01L51/5281 ,  H01L51/5293 ,  H01L51/56 ,  H01L2227/323

Abstract: Provided is an organic light emitting diode display device. The organic light emitting diode display device includes a polarizing plate, a substrate disposed on the polarizing plate, an overcoating layer disposed on the substrate and including a plurality of micro lenses, and a first electrode, an organic emission layer, and a second electrode of an organic emission element which is disposed on the overcoating layer, in which the micro lens includes a plurality of recesses and a wall surrounding the recesses and a reflective pattern is disposed in an area corresponding to the recess.