IP Library › Granted Patent US 12,191,423
Granted Patent B2
US 12,191,423 · App. 18/452,520 · Granted Jan 7, 2025

Display device and method of manufacturing the same

Inventors: Seung Min Lee (Yongin-si, KR); Jin Taek Kim (Yongin-si, KR); Baek Hyeon Lim (Yongin-si, KR); Jin Yeong Kim (Yongin-si, KR); Kyung Tae Chae (Yongin-si, KR); Jung Hwan Yi (Yongin-si, KR); Hee Keun Lee (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L33/382H01L33/0095H01L33/54H01L2933/0016H01L2933/005
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Quick Facts
Patent No.
US 12,191,423
App. No.
18/452,520
Granted
Jan 7, 2025
Kind
B2
Abstract

A display device includes: a substrate having a display area and a non-display area; and a pixel in each of a pixel area in the display area. Each of the pixels includes: an insulating layer on the substrate and having an opening; first and second electrodes on the insulating layer and spaced apart from each other; a plurality of light emitting elements in the opening; a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other; a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other; a first insulating pattern on the first contact electrode; and a second insulating pattern on the second contact electrode. The first insulating pattern and the second insulating pattern are on the same layer and spaced apart from each other.

Claims (19)

1. A display device comprising:

a substrate having a display area and a non-display area extending around a side of the display area, the display area comprising a plurality of pixel areas; and

a pixel in each of the pixel areas, the pixel comprising:

an insulating layer on a surface of the substrate and having an opening;

first and second electrodes on the insulating layer and spaced apart from each other;

a plurality of light emitting elements in the opening;

a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other;

a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other;

a first insulating pattern on the first contact electrode; and

a second insulating pattern on the second contact electrode, the first insulating pattern and the second insulating pattern being on the same layer and spaced apart from each other in a direction parallel to the surface of the substrate such that the first insulating pattern and the second insulating pattern do not overlap each other when viewed on a plane.

2. The display device according to claim 1 , wherein the first insulating pattern and the second insulating pattern are organic insulating films comprising the same organic material.

3. The display device according to claim 1 , further comprising an encap layer directly contacting both the first insulating pattern and the second insulating pattern.

4. The display device according to claim 1 , wherein the first insulating pattern overlaps the first contact electrode when viewed on the plane, and the second insulating pattern overlaps the second contact electrode when viewed on the plane.

5. The display device according to claim 4 , wherein the first contact electrode and the first insulating pattern have the same planar shape, and the second contact electrode and the second insulating pattern have the same planar shape.

6. The display device according to claim 1 , wherein the first insulating pattern is directly on the first contact electrode, and the second insulating pattern is directly on the second contact electrode.

7. The display device according to claim 6 , wherein the first contact electrode and the first insulating pattern have the same planar shape, and the second contact electrode and the second insulating pattern have the same planar shape.

8. The display device according to claim 1 , wherein the pixel further comprises a pixel circuit portion comprising a transistor, and

wherein the pixel circuit portion is between the substrate and the insulating layer.

9. The display device according to claim 8 , wherein the transistor is spaced apart from the opening in the insulating layer when viewed in a cross section.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2024
From: LEE, SEUNG MIN; KIM, JIN TAEK; LIM, BAEK HYEON; KIM, JIN YEONG; CHAE, KYUNG TAE; YI, JUNG HWAN; LEE, HEE KEUN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 068506/0389 →
Priority Claims (1)
KR 10-2020-0032740 · Mar 17, 2020 · national
Continuity (2)
Division 17098117 · Nov 13, 2020
Related Publication 20230395755A1 · Dec 7, 2023
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