公开(公告)号：US20240224712A1

公开(公告)日：2024-07-04

申请号：US18303242

申请日：2023-04-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Ohnam Kwon ,  Jiyoung Ahn ,  Tae-Hoon Kim ,  Heonseok Lee ,  Yeon Kim

IPC: H10K59/80

CPC classification number: H10K59/80523 ,  H10K59/873 ,  H10K59/131

Abstract: A display device includes a substrate; an organic light-emissive layer disposed on the substrate; and a cathode electrode layer disposed on the organic light-emissive layer, wherein the cathode electrode layer includes: a first electrode layer disposed on the organic light-emissive layer; a second electrode layer disposed on the first electrode layer; and a third electrode layer disposed on the second electrode layer, wherein the second electrode layer is a conductive organic material layer. The second electrode layer can absorb heat from laser to reduce damage to the third electrode layer. Thus, penetration of external defect-causing factors into the organic light-emissive layer through the third electrode layer can be reduced.

公开(公告)号：US11690248B2

公开(公告)日：2023-06-27

申请号：US17137897

申请日：2020-12-30

Applicant: LG Display Co., Ltd.

Inventor： Yeon Kim ,  Goeun Kim ,  HyeonTae Seo ,  Eunjin Kim ,  Jungyeon Kim ,  JinHo Kim ,  Tae-Hoon Kim ,  KyoungHoon Kim ,  KwangSeon Lee ,  Hongdae Shin

IPC: H01L51/52 ,  H01L51/10 ,  H01L51/44 ,  H01L27/32 ,  H10K50/84 ,  H10K50/844 ,  H10K10/88 ,  H10K30/88 ,  H10K50/818 ,  H10K50/86 ,  H10K50/842 ,  H10K59/35 ,  H10K59/38 ,  H10K59/122 ,  H10K59/124 ,  H10K102/00

CPC classification number: H10K50/846 ,  H10K50/844 ,  H10K10/88 ,  H10K30/88 ,  H10K50/818 ,  H10K50/84 ,  H10K50/8426 ,  H10K50/865 ,  H10K59/122 ,  H10K59/124 ,  H10K59/35 ,  H10K59/351 ,  H10K59/353 ,  H10K59/38 ,  H10K2102/00

Abstract: A light emitting display device includes a lower substrate, a thin film transistor on the lower substrate, a passivation layer disposed on the thin film transistor and including hydrogen, an overcoating layer disposed on the passivation layer and planarizing the passivation layer, a light emitting element disposed on the overcoating layer and including an anode, a light emitting layer on the anode, and a cathode on the light emitting layer, a bank disposed on the overcoating layer and defining a light emitting area, an adhesive layer on the light emitting element and the bank, and a hydrogen absorbing layer disposed on the adhesive layer and including a hydrogen absorbing filler, wherein a side end of the bank is disposed more inwardly than side ends of the adhesive layer and the hydrogen absorbing layer, wherein the side ends of the adhesive layer and the hydrogen absorbing layer are disposed more inwardly than a side end of the overcoating layer.