公开(公告)号：US20230071206A1

公开(公告)日：2023-03-09

申请号：US17880971

申请日：2022-08-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Seungho BANG ,  Jonghan PARK ,  Hyeona KIM ,  Bokyoung LEE ,  JungHo BANG

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: An electroluminescent display device includes a substrate having a display area surrounding a through-hole, and a non-display area disposed between the display area and the through-hole, a thin-film transistor disposed on an upper portion of the display area and a light-emitting element connected to the thin-film transistor, a plurality of insulating layers disposed between the substrate and the thin-film transistor, a planarization layer disposed between the thin-film transistor and the light-emitting element, and at least one anti-connection part disposed in the non-display area and including the plurality of insulating layers and the planarization layer, in which the planarization layer and the plurality of insulating layers, which constitute the anti-connection part, and each of the planarization layer and the plurality of insulating layers has an undercut shape in which a bottom surface is narrower than a top surface, so that the light-emitting part of the light-emitting element is disconnected in the through-hole by the anti-connection part, thereby penetration of moisture through the light-emitting part may be inhibited.