公开(公告)号：US20240224688A1

公开(公告)日：2024-07-04

申请号：US18521844

申请日：2023-11-28

Applicant: LG Display Co., Ltd.

Inventor： Ho-Jin Kim ,  Seung-Min Baik ,  Hyeong-Jun Lim ,  Bong-Choon Kwak

IPC: H10K59/35 ,  H10K59/80

CPC classification number: H10K59/353 ,  H10K59/876

Abstract: A display device includes a trench, which includes: first and second trench lines respectively located between neighboring column lines and between neighboring row lines, wherein the first trench line includes a first side groove in a column direction, and first and second corner grooves connected between adjacent first side grooves, forming an isosceles portion protruding to one side in a row direction, having second and first diagonal directions, respectively, and connected to each other at a first contact point, wherein the second trench line includes a second side groove in the row direction, and the first and second corner grooves connected between adjacent second side grooves, forming an isosceles portion protruding to one side in the column direction, and connected to each other at a second contact point, wherein the protruding isosceles portions of the first and second trench lines share the first corner groove.

公开(公告)号：US10916589B2

公开(公告)日：2021-02-09

申请号：US16218435

申请日：2018-12-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyung-Seok Bang ,  Ji-Yeon Park ,  Han-Sun Park ,  Hyeong-Jun Lim

IPC: H01L27/32 ,  G02F1/1335 ,  H01L51/52 ,  G03H1/02

Abstract: An electroluminescent display device includes a substrate including first, second, and third sub-pixel regions; an interlayer insulating layer and a passivation layer each separately disposed at the first, second, and third sub-pixel regions on the substrate; a reflective electrode disposed on the passivation layer of each of the first, second, and third sub-pixel regions; first, second, and third dielectric layers disposed corresponding to the first, second, and third sub-pixel regions, respectively, on the reflective electrode; a first electrode disposed on each of the first, second, and third dielectric layers; an insulating pattern covering an edge of the first electrode; a light-emitting layer disposed on the first electrode and the insulating pattern and substantially all over the substrate including the first, second, and third sub-pixel regions; and a second electrode disposed on the light-emitting layer, wherein the first, second, and third dielectric layers have different thicknesses.

公开(公告)号：US10700140B2

公开(公告)日：2020-06-30

申请号：US16210375

申请日：2018-12-05

Applicant: LG Display Co., Ltd.

Inventor： Hyeong-Jun Lim ,  Han-Sun Park ,  Hyung-Seok Bang ,  Ji-Yeon Park

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50

Abstract: An electroluminescent display device is disclosed. The disclosed electroluminescent display device includes a substrate including a plurality of pixel regions; a plurality of light emitting diodes spaced apart from each other on the substrate and each corresponding to the plurality of pixel regions, respectively; a plurality of encapsulation films respectively covering each of the light emitting diodes of the plurality of light emitting diodes, wherein the plurality of encapsulation films has a first refractive index; a first partition wall disposed between each of the encapsulation films of the plurality of encapsulation films, wherein the first partition wall corresponds to a boundary between the plurality of pixel regions and has a second refractive index lower than the first refractive index; and a color filter layer disposed on the plurality of encapsulation films and the first partition wall.

公开(公告)号：US11201197B2

公开(公告)日：2021-12-14

申请号：US16526045

申请日：2019-07-30

Applicant: LG Display Co., Ltd.

Inventor： Hyeong-Jun Lim ,  Doo-Hyn Yoon ,  Han-Sun Park

IPC: H01L27/32 ,  H01L51/56 ,  G02B27/01 ,  G06F1/16

Abstract: A display device includes: a substrate; a plurality of pixels on the substrate; an insulating film on the substrate; a bank on the insulating film, wherein the bank partitions the plurality of pixels; a first trench in the bank; and a second trench in the insulating film. A method of manufacturing a display device includes: forming a first lower metal layer and a second metal layer in patterns on a substrate; forming a first insulating film on the first lower metal layer and the second lower metal layer; forming a second insulating film on the first insulating film; forming a first trench to expose the second lower metal layer by performing a first etching process; and forming a second trench by performing a second etching process to etch the second lower metal layer exposed from a bottom of the first trench.

公开(公告)号：US11024685B2

公开(公告)日：2021-06-01

申请号：US16213238

申请日：2018-12-07

Applicant: LG Display Co., Ltd.

Inventor： Hyeong-Jun Lim ,  Ji-Yeon Park ,  Han-Sun Park

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L21/764 ,  G09G3/3233

Abstract: An electroluminescent display device includes a substrate including a plurality of pixel regions; an air gap over the substrate and configured to separate the plurality of pixel regions; a first electrode in each of the plurality of pixel regions; an insulating pattern covering an edge of the first electrode; a light emitting portion on the first electrode and the insulating pattern; and a second electrode on the light emitting portion.