公开(公告)号：US20190393448A1

公开(公告)日：2019-12-26

申请号：US16453070

申请日：2019-06-26

Applicant: LG Display Co., Ltd.

Inventor： Yonghoon CHOI ,  Jintae KIM ,  Dongmin SIM ,  KangJu LEE ,  Sookang KIM ,  Taeshick KIM

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

Abstract: Disclosed is a light emitting display device that can enhance light extraction efficiency of light which is emitted from a light emitting element. The light emitting display device includes an overcoating layer on a substrate and including a plurality of protruding portions, a first electrode on the plurality of protruding portions, a light emitting layer on the first electrode, and a second electrode on the light emitting layer. The first electrode has a contour which conforms to contour of the plurality of protruding portions. The light emitting layer has a contour different from the contours of the plurality of protruding portions.

公开(公告)号：US20210202607A1

公开(公告)日：2021-07-01

申请号：US17117702

申请日：2020-12-10

Applicant: LG Display Co., Ltd.

Inventor： Jaeho LEE ,  Wonhoe KOO ,  Dongmin SIM ,  Taemin KIM ,  Hyekyung CHOI ,  Kyunghoon HAN

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

Abstract: An organic light emitting display apparatus includes a substrate including a plurality of pixels. The organic light emitting display apparatus further includes a plurality of organic light emitting diodes on the substrate so as to correspond to the plurality of pixels. The plurality of pixels includes a first pixel, a second pixel, a third pixel, and a fourth pixel which emit different color light. Each of the plurality of organic light emitting diodes includes a first electrode, a light emitting portion on the first electrode and a second electrode on the light emitting portion. A thickness of the first electrode of the first pixel is different from a thickness of the first electrode of the second pixel, and the thickness of the first electrode of the second pixel is different from a thickness of the first electrode of the third pixel.

公开(公告)号：US20210043690A1

公开(公告)日：2021-02-11

申请号：US16901862

申请日：2020-06-15

Applicant: LG Display Co., Ltd.

Inventor： Dongmin SIM ,  Hyekyung CHOI ,  Kyunghoon HAN

IPC: H01L27/32 ,  H01L51/52 ,  G06F3/041 ,  G09G3/20

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 the base portion and a side portion of the protrusion portion at the plurality of sub-pixels, a bank layer covering a portion of the first electrode and the overcoating layer, a light emitting layer and a second electrode on the first electrode and the bank layer at the plurality of sub-pixels, and a cut-off layer on the second electrode to overlap the bank layer.

公开(公告)号：US20240224689A1

公开(公告)日：2024-07-04

申请号：US18603852

申请日：2024-03-13

Applicant: LG Display Co., Ltd.

Inventor： Jaeho LEE ,  Wonhoe KOO ,  Dongmin SIM ,  Taemin KIM ,  Hyekyung CHOI ,  Kyunghoon HAN

IPC: H10K59/35 ,  H10K50/15 ,  H10K50/81 ,  H10K102/00

CPC classification number: H10K59/353 ,  H10K50/15 ,  H10K50/81 ,  H10K59/351 ,  H10K2102/351

Abstract: An organic light emitting display apparatus can include a substrate including a plurality of pixels, a transistor on the substrate, an over coating layer on the transistor, a plurality of organic light emitting diodes on the over coating layer corresponding to the plurality of pixels, an encapsulation layer on the plurality of organic light emitting diodes, an adhesive member on the encapsulation layer, and an encapsulation substrate on the adhesive layer. Also, the plurality of pixels include at least first, second and third pixels that emit different color lights, and each of the plurality of organic light emitting diodes includes a first electrode on the over coating layer, a light emitting portion on the first electrode, and a second electrode on the light emitting portion. Also, the light emitting portion includes a first light emitting portion and a second light emitting portion, and elements have certain thicknesses and spatial arrangements.

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.