公开(公告)号：US20220173160A1

公开(公告)日：2022-06-02

申请号：US17536142

申请日：2021-11-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Sang Hoon PAK ,  Tae Gyu LEE ,  Seon Hee LEE ,  Jung Eun LEE ,  Kyung Ha LEE

IPC: H01L27/15 ,  H01L29/786 ,  H01L33/24 ,  H01L33/44 ,  H01L33/38 ,  H01L33/50 ,  H01L33/58

Abstract: A display device includes first and second alignment electrodes disposed on a substrate, an alignment insulating film having a concave portion disposed between the first and second alignment electrodes, a light-emitting device disposed on the alignment insulating film, first and second electrodes electrically connected to the light-emitting device, a thin-film transistor connected to one of the first and second electrodes, and a plurality of insulating films providing a trench disposed on the concave portion, the trench having a larger width than the concave portion, thereby improving emission efficiency.