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：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：US20220209198A1

公开(公告)日：2022-06-30

申请号：US17532680

申请日：2021-11-22

Applicant: LG Display Co., Ltd.

Inventor： YongCheol KIM ,  Jaeho LEE

IPC: H01L51/52 ,  H01L27/32

Abstract: According to the present disclosure, the light distribution of a light emitting display apparatus is effectively controlled by asymmetrically disposing a protruding portion of a curved surface area of the light emitting display apparatus to minimize a degradation of a luminance in the curved surface area and a difference in a color sense between a flat surface area and the curved surface area of the light emitting display apparatus.

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.