公开(公告)号：US20240147799A1

公开(公告)日：2024-05-02

申请号：US18539177

申请日：2023-12-13

Applicant: LG Display Co., Ltd.

Inventor： Byungsoo Kim

IPC: H10K59/35 ,  H10K50/19

CPC classification number: H10K59/35 ,  H10K50/19 ,  H10K2102/3026

Abstract: An organic light emitting device having a structure that a plurality of light emitting units are deposited, is disclosed, of which white color shift caused by variation of a viewing angle is reduced through a combination between dopant materials of the respective light emitting units. The organic light emitting device includes dopant materials emitting light of different wavelengths from the plurality of light emitting units. Therefore, in the organic light emitting device, variation of color and luminance, which is perceived by a user as a viewing angle is varied, may be reduced.

公开(公告)号：US10269873B2

公开(公告)日：2019-04-23

申请号：US15892177

申请日：2018-02-08

Applicant: LG Display Co., Ltd.

Inventor： Byungsoo Kim ,  YongMin Ha

IPC: H01L27/32 ,  H01L51/52

Abstract: An electroluminescent display device according to an exemplary embodiment of the present disclosure includes a first light emitting unit which is disposed on the anode and includes an emissive layer, a charge generation layer disposed on the first light emitting unit, a second light emitting unit which is disposed on the charge generation layer and includes a second emissive layer, and a cathode disposed on the second light emitting unit in which each of the first light emitting unit and the second light emitting unit includes a plurality of pixel emissive layers corresponding to a first pixel, a second pixel, a third pixel, and a fourth pixel, and the first pixel emits red light, the second pixel emits green light, the third pixel emits blue light, and the fourth pixel emits yellow-green light to lower the power consumption of the organic light emitting display device.

公开(公告)号：US10084148B2

公开(公告)日：2018-09-25

申请号：US14963467

申请日：2015-12-09

Applicant: LG Display Co., Ltd.

Inventor： Byungsoo Kim ,  EunJung Park

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00

CPC classification number: H01L51/5056 ,  H01L51/0026 ,  H01L51/5072 ,  H01L51/5225 ,  H01L51/5278 ,  H01L51/56

Abstract: An organic light emitting display device includes: a substrate including a display area having a plurality of pixel regions and a non-display area; a first electrode on the substrate; a first organic emissive layer on the first electrode; a charge generation layer on the first organic emissive layer as a common layer for the plurality of pixel regions; a second organic emissive layer on the charge generation layer; a second electrode on the second organic emissive layer as a common electrode for the plurality of pixel regions; and an anti-contact layer between the charge generation layer and the second electrode as a common layer for the plurality of pixel regions. The anti-contact layer completely surrounds the charge generation layer.