公开(公告)号：US20210408137A1

公开(公告)日：2021-12-30

申请号：US17359429

申请日：2021-06-25

Applicant: LG Display Co., Ltd.

Inventor： Jaeho LEE ,  Wonhoe KOO ,  Kyung Hoon HAN ,  YongCheol KIM ,  Hyekyung CHOI

IPC: H01L27/32

Abstract: A display device includes, a light emitting element which is disposed in each of a plurality of subpixels and includes a first blue light emitting layer, a green light emitting layer on the first blue light emitting layer, and a second blue light emitting layer on the green light emitting layer; a first light conversion layer disposed in a first subpixel among the plurality of subpixels; and a second light conversion layer disposed in a second subpixel among the plurality of subpixels and having higher light conversion efficiency than the first light conversion layer, thus, the second light conversion layer having high light conversion efficiency is disposed in the second subpixel which is a red subpixel, thereby improving the luminance of the red light.

公开(公告)号：US20210202606A1

公开(公告)日：2021-07-01

申请号：US17113900

申请日：2020-12-07

Applicant: LG Display Co., Ltd.

Inventor： Taemin KIM ,  Kyunghoon HAN ,  Wonhoe KOO

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light emitting display apparatus include a substrate including a plurality of pixels having a plurality of sub-pixels, a plurality of organic light emitting elements disposed at the plurality of sub-pixels, and a plurality of light extraction patterns on the plurality of organic light emitting elements and having different shapes at each of the plurality of sub-pixels.

公开(公告)号：US20210159445A1

公开(公告)日：2021-05-27

申请号：US17006475

申请日：2020-08-28

Applicant: LG Display Co., Ltd.

Inventor： Dongmin SIM ,  Hyekyung CHOI ,  Wonhoe KOO

IPC: H01L51/52 ,  H01L27/32

Abstract: A light emitting display apparatus includes a substrate including a plurality of sub-pixels; an overcoating layer on the substrate and having a base portion and a protrusion portion; a first electrode disposed to cover a side portion of the protrusion portion and the base portion at the plurality of sub-pixels; a bank layer covering a portion of the first electrode and the overcoating layer; and a light emitting layer and a second electrode on the first electrode and the bank layer at the plurality of sub-pixels. The first electrode includes a reflective layer and a transparent conductive layer on the reflective layer, the transparent conductive layer includes a first portion on the base portion and a second portion on a side surface of the protrusion portion, and a thickness of the second portion is greater than a thickness of the first portion.

公开(公告)号：US20200373520A1

公开(公告)日：2020-11-26

申请号：US16883573

申请日：2020-05-26

Applicant: LG DISPLAY CO., LTD.

Inventor： YongCheol KIM ,  Wonhoe KOO ,  Dongmin SIM ,  Kyunghoon HAN

IPC: H01L51/52 ,  H01L27/32

Abstract: A light emitting display apparatus includes a substrate including a plurality of sub-pixels, each of the plurality of sub-pixels including a light emitting area and a reflective area surrounded by the light emitting area, an overcoating layer on the substrate, a partition at the reflective area on the overcoating layer, a light emitting element at the light emitting area on the overcoating layer, and a reflective part on the partition and formed of a same material as the light emitting element.

公开(公告)号：US20200373459A1

公开(公告)日：2020-11-26

申请号：US16878227

申请日：2020-05-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyunghoon HAN ,  Wonhoe KOO ,  YongCheol KIM ,  Dongmin SIM ,  YoungDock CHO

IPC: H01L33/14 ,  H01L33/38 ,  H01L33/56 ,  H01L33/58 ,  H01L25/075

Abstract: A light emitting display apparatus can include an insulating layer on a substrate and the insulating layer includes a base portion and a protrusion portion. The light emitting display apparatus further includes a first electrode covering an upper portion of the base portion and a side portion and an upper portion of the protrusion portion. The light emitting display apparatus further includes a bank layer covering a portion of the insulating layer and a portion of the first electrode and having a concave portion. The light emitting display apparatus further includes a light emitting layer on the first electrode and the bank layer, and a second electrode on the light emitting layer.

公开(公告)号：US20200373366A1

公开(公告)日：2020-11-26

申请号：US16869132

申请日：2020-05-07

Applicant: LG Display Co., Ltd.

Inventor： Dongmin SIM ,  Wonhoe KOO ,  Hyekyung CHOI ,  YongCheol KIM ,  Kyunghoon HAN ,  YoungDock CHO

IPC: H01L27/32 ,  H01L51/52

Abstract: A light emitting display apparatus according to an exemplary embodiment of the present disclosure includes an insulating layer on a substrate and including a base portion and a protrusion portion having an uneven portion at a part of the base portion, a first electrode covering an upper portion of the base portion and a side portion and a upper portion of the protrusion portion and disposed along the shape of the uneven portion, a bank layer covering a part of the insulating layer and a part of the first electrode, and an emission layer on the first electrode and the bank layer, and a second electrode on the emission layer.

公开(公告)号：US20190393450A1

公开(公告)日：2019-12-26

申请号：US16563363

申请日：2019-09-06

Applicant: LG DISPLAY CO., LTD.

Inventor： Sookang KIM ,  KangJu LEE ,  Wonhoe KOO ,  Hyunsoo LIM ,  Mingeun CHOI

IPC: H01L51/52 ,  H01L27/32

Abstract: An organic light-emitting display device can include a substrate including a display area and a non-display area; a thin film transistor disposed on the substrate in the non-display area; an electroluminescent device disposed in the display area; and an overcoat layer disposed on the substrate and including two or more concave portions and two or more convex portions in the display area, in which the two or more concave portions and the two or more convex portions form a honeycomb pattern in a plan view, and the electroluminescent device includes: a first electrode disposed on the overcoat layer and connecting the electroluminescent device to the thin film transistor; an organic light-emitting layer disposed on the first electrode and configured to emit light; and a second electrode disposed on the organic light-emitting layer.

公开(公告)号：US20190157621A1

公开(公告)日：2019-05-23

申请号：US16239125

申请日：2019-01-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Sookang KIM ,  KangJu LEE ,  Wonhoe KOO ,  Hyunsoo LIM ,  Mingeun CHOI

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5275 ,  H01L27/3218 ,  H01L27/3248 ,  H01L27/3258 ,  H01L27/326 ,  H01L27/3262 ,  H01L51/5209 ,  H01L51/5268

Abstract: An organic light-emitting display device can include a substrate including a display area and a non-display area; a thin film transistor disposed on the substrate in the non-display area; an electroluminescent device disposed in the display area; and an overcoat layer disposed on the substrate and including two or more concave portions and two or more convex portions in the display area, in which the two or more concave portions and the two or more convex portions form a plan-view pattern including one of a polygonal pattern having same centers, a polygonal pattern having different centers, a circular pattern having same centers, a circular pattern having different centers, an oval pattern having same centers, an oval pattern having different centers, a spiral pattern, and combinations thereof, and the electroluminescent device includes: a first electrode disposed on the overcoat layer and connecting the electroluminescent device to the thin film transistor; an organic light-emitting layer disposed on the first electrode and configured to emit light; and a second electrode disposed on the organic light-emitting layer.

公开(公告)号：US20180323286A1

公开(公告)日：2018-11-08

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 ,  H05B33/08 ,  H01L27/12 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/1362 ,  H01L25/075

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：US20180247980A1

公开(公告)日：2018-08-30

申请号：US15444198

申请日：2017-02-27

Applicant: LG Display Co., Ltd.

Inventor： Jihyang JANG ,  Sookang KIM ,  Soyoung JO ,  Wonhoe KOO ,  Hyunsoo LIM

IPC: H01L27/32 ,  H01L51/52

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

Abstract: Provided is an organic light emitting device including an overcoat layer on a substrate, a first electrode disposed on the overcoat layer, an organic light emitting layer disposed on the first electrode and including a convex or concave curve; and a second electrode disposed on the organic light emitting layer.