公开(公告)号：US20240047611A1

公开(公告)日：2024-02-08

申请号：US18354421

申请日：2023-07-18

Applicant: LG Display Co., Ltd.

Inventor： Jung Eun LEE ,  Nam Kook KIM ,  Hwan Keon LEE ,  Tae Gyu LEE

IPC: H01L33/24 ,  H01L33/00 ,  H01L33/38 ,  H01L33/44

CPC classification number: H01L33/24 ,  H01L33/0095 ,  H01L33/382 ,  H01L33/387 ,  H01L33/44

Abstract: A display apparatus including a light-emitting device and a method of forming the same are provided. The light-emitting device may be electrically connected to the driving circuit. A first planarization layer may be disposed on the driving circuit, a second planarization layer may be disposed on the first planarization layer, and the light-emitting device may be disposed on the second planarization layer. An upper surface of the second planarization layer toward the light-emitting device may be parallel with a surface of a device substrate supporting the light-emitting device and the driving circuit. Thus, in the display apparatus and the method of forming the same, decreasing the quality of an image due to differences in the generation position of the light emitted from the light-emitting device may be prevented.

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.

公开(公告)号：US20220165787A1

公开(公告)日：2022-05-26

申请号：US17519072

申请日：2021-11-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Tae Gyu LEE ,  Jung Eun LEE ,  Kyung Ha LEE

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/40 ,  H01L33/44 ,  H01L33/50 ,  H01L33/58

Abstract: A display device capable of improving a light emission efficiency includes a plurality of insulating films disposed on a substrate, a trench exposing side surfaces of the plurality of insulating films, a first alignment electrode disposed on the side surfaces of the plurality of insulating films exposed by the trench, a second alignment electrode disposed so as to be surrounded by the first alignment electrode, and a light-emitting device connected to the first and second alignment electrodes and disposed between the first and second alignment electrodes within the trench, thereby improving a light emission efficiency.