公开(公告)号：US10665811B2

公开(公告)日：2020-05-26

申请号：US15842332

申请日：2017-12-14

Applicant: LG DISPLAY CO., LTD.

Inventor： KyoungJin Park ,  Hanhee Kim ,  KiSoub Yang ,  HongMyeong Jeon ,  SungGoo Jung

IPC: H01L51/52 ,  H05B33/26 ,  H05B33/10 ,  H05B33/20 ,  H05B33/22 ,  H05B33/08 ,  H01L27/32

Abstract: An electroluminescent display device which may improve display quality is discussed. The electroluminescent display device includes a substrate in which a plurality of pixel areas are defined, a first electrode arranged in each pixel area, a light emitting layer on the first electrode within the pixel area, and a second electrode on the light emitting layer. Particularly, a step difference portion is arranged at an edge of the pixel area, and is partially or fully be filled with the light emitting layer. Film uniformity of the light emitting layer within the pixel area may be improved by arrangement of the step difference portion.

公开(公告)号：US20230209906A1

公开(公告)日：2023-06-29

申请号：US17981179

申请日：2022-11-04

Applicant: LG Display Co., Ltd.

Inventor： HongMyeong Jeon

IPC: H01L27/32 ,  H01L51/50

CPC classification number: H01L27/3246 ,  H01L51/5044

Abstract: Disclosed is an electroluminescent display device comprising a substrate including a first subpixel and a second subpixel arranged in a first direction, a first electrode provided in each of the first subpixel and the second subpixel on the substrate, a bank provided in the boundary area between the first subpixel and the second subpixel on the substrate, a light emitting stack provided on the first electrode and the bank, and a second electrode provided on the light emitting stack, wherein the bank includes a first bank and a second bank provided on the first bank, the light emitting stack includes a first layer provided in the first subpixel and the second subpixel, and a second layer disposed on the first layer and provided from the first subpixel to the second subpixel, the first bank is disposed under the second layer, and the second bank is disposed on the second layer.

公开(公告)号：US20180184501A1

公开(公告)日：2018-06-28

申请号：US15842332

申请日：2017-12-14

Applicant: LG DISPLAY CO., LTD.

Inventor： KyoungJin Park ,  Hanhee Kim ,  KiSoub Yang ,  HongMyeong Jeon ,  SungGoo Jung

IPC: H05B33/26 ,  H01L51/52 ,  H05B33/08 ,  H05B33/20 ,  H05B33/22 ,  H05B33/10

Abstract: An electroluminescent display device which may improve display quality is discussed. The electroluminescent display device includes a substrate in which a plurality of pixel areas are defined, a first electrode arranged in each pixel area, a light emitting layer on the first electrode within the pixel area, and a second electrode on the light emitting layer. Particularly, a step difference portion is arranged at an edge of the pixel area, and is partially or fully be filled with the light emitting layer. Film uniformity of the light emitting layer within the pixel area may be improved by arrangement of the step difference portion.