IP Library Granted Patent US 12,068,435
Granted Patent B2
US 12,068,435 · App. 17/404,380 · Granted Aug 20, 2024

Display device and method of fabricating the same

Inventors: Dong Hee Shin (Asan-si, KR); Sun Kwun Son (Suwon-si, KR); Na Hyeon Cha (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L33/382H01L25/0753H01L27/156H01L33/005H01L2933/0016
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Quick Facts
Patent No.
US 12,068,435
App. No.
17/404,380
Granted
Aug 20, 2024
Kind
B2
Abstract

A display device comprises a planarization layer disposed on a substrate, a first alignment electrode and a second alignment electrode that extend in a first direction and are spaced apart from each other on the planarization layer, a first insulating layer disposed on the first alignment electrode and the second alignment electrode and comprising a first opening exposing the planarization layer between the first alignment electrode and the second alignment electrode, a light-emitting element disposed on the planarization layer overlapping the first opening, a first contact electrode and a second contact electrode disposed on the first insulating layer, the first contact electrode electrically contacting a first end of the light-emitting element and the second contact electrode electrically contacting a second end of the light-emitting element, and a second insulating layer disposed on the light-emitting element.

Claims (25)

1. A display device comprising:

a planarization layer disposed on a substrate;

a first alignment electrode and a second alignment electrode that extend in a first direction and are spaced apart from each other on the planarization layer;

a first insulating layer disposed on the first alignment electrode and the second alignment electrode, the first insulating layer comprising a first opening exposing-over the planarization layer between the first alignment electrode and the second alignment electrode;

a light-emitting element disposed on the planarization layer overlapping the first opening;

a first contact electrode and a second contact electrode disposed on the first insulating layer, the first contact electrode electrically contacting a first end of the light-emitting element and the second contact electrode electrically contacting a second end of the light-emitting element; and

a second insulating layer disposed on the light-emitting element, wherein

the first contact electrode, the second contact electrode, and the light-emitting element contact the planarization layer.

2. The display device of claim 1 , wherein the first alignment electrode, the second alignment electrode and the light-emitting element are disposed on planarization layer and spaced apart from each other, and contact the planarization layer.

3. The display device of claim 2 , wherein

an end of the first alignment electrode faces the first end of the light-emitting element, and

an end of the second alignment electrode faces the second end of the light-emitting element.

4. The display device of claim 2 , wherein

the first contact electrode is disposed between an end of the first alignment electrode and the first end of the light-emitting element, and

the second contact electrode is disposed between an end of the second alignment electrode and the second end of the light-emitting element.

5. The display device of claim 2 , wherein

the first insulating layer comprises second openings exposing the first alignment electrode and the second alignment electrode,

the first contact electrode electrically contacts the first alignment electrode through one of the second openings, and

the second contact electrode electrically contacts the second alignment electrode through another one of the second openings.

6. The display device of claim 5 , wherein the first opening and the second openings extend parallel to the first alignment electrode.

7. The display device of claim 6 , wherein the second insulating layer overlaps the first opening and extends parallel to the first alignment electrode.

8. The display device of claim 7 , wherein the second insulating layer does not overlap the first alignment electrode and the second alignment electrode, and has an isolated pattern.

9. The display device of claim 8 , wherein a width of the second insulating layer is smaller than a width of the first opening and larger than a length of the light-emitting element in a second direction perpendicular to the first direction.

10. The display device of claim 1 , wherein the second insulating layer overlaps all of the first contact electrode, the second contact electrode, and the light-emitting element.

11. The display device of claim 1 , wherein the second insulating layer overlaps the light-emitting element and does not overlap the first contact electrode and the second contact electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 17, 2021
From: SHIN, DONG HEE; SON, SUN KWUN; CHA, NA HYEON
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 057203/0713 →
Priority Claims (1)
KR 10-2020-0106812 · Aug 25, 2020 · national
Continuity (1)
Related Publication 20220069165A1 · Mar 3, 2022
Cited By (4)
US 12,368,135 US 12,588,327 US 12,666,772 US 12,740,194