IP Library Granted Patent US 11,949,044
Granted Patent B2
US 11,949,044 · App. 17/494,654 · Granted Apr 2, 2024

Display device and method of manufacturing the same

Inventors: Buem Joon Kim (Yongin-si, KR); Hyun Deok Im (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L33/36H01L21/68H01L25/0753H01L2221/68309H01L2933/0016
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Quick Facts
Patent No.
US 11,949,044
App. No.
17/494,654
Granted
Apr 2, 2024
Kind
B2
Abstract

A display device and a method of manufacturing the same are provided. The display device includes a first alignment electrode and a second alignment electrode spaced apart from each other, a light emitting element between the first alignment electrode and the second alignment electrode, a first auxiliary electrode at a first side of the light emitting element in a plan view, and separated from the first alignment electrode, and a second auxiliary electrode at a second side of the light emitting element in a plan view, and separated from the second alignment electrode, wherein an alignment signal is configured to be applied to the first alignment electrode, and wherein a first auxiliary signal of a phase that is different from a phase of the alignment signal is configured to be applied to the first auxiliary electrode.

Claims (28)

1. A display device comprising:

a first alignment electrode and a second alignment electrode spaced apart from each other;

a light emitting element between the first alignment electrode and the second alignment electrode;

a first auxiliary electrode at a first side of the light emitting element in a plan view, and separated from the first alignment electrode; and

a second auxiliary electrode at a second side of the light emitting element in a plan view, and separated from the second alignment electrode,

wherein an alignment signal is configured to be applied to the first alignment electrode,

wherein a first auxiliary signal of a phase that is different from a phase of the alignment signal is configured to be applied to the first auxiliary electrode, and

wherein respective bottom surfaces of the first auxiliary electrode, the second auxiliary electrode, the first alignment electrode, and the second alignment electrode all contact a same layer.

2. The display device according to claim 1 , wherein the first auxiliary electrode is between the first alignment electrode and a center of the light emitting element in a plan view, and

wherein the second auxiliary electrode is between the second alignment electrode and the center of the light emitting element in a plan view.

3. The display device according to claim 2 , further comprising:

a third auxiliary electrode between the first auxiliary electrode and the center of the light emitting element in a plan view, and separated from the first auxiliary electrode; and

a fourth auxiliary electrode between the second auxiliary electrode and the center of the light emitting element in a plan view, and separated from the second auxiliary electrode.

4. The display device according to claim 1 , wherein the first alignment electrode is between the first auxiliary electrode and the light emitting element in a plan view, and

wherein the second alignment electrode is between the second auxiliary electrode and the light emitting element in a plan view.

5. The display device according to claim 4 , further comprising:

a third auxiliary electrode between the first alignment electrode and a center of the light emitting element in a plan view; and

a fourth auxiliary electrode between the second alignment electrode and the center of the light emitting element in a plan view.

6. The display device according to claim 5 , wherein the third auxiliary electrode is electrically separated from the first alignment electrode and the first auxiliary electrode.

7. The display device according to claim 4 , further comprising:

a third auxiliary electrode between the first auxiliary electrode and the first alignment electrode in a plan view; and

a fourth auxiliary electrode between the second auxiliary electrode and the second alignment electrode in a plan view.

8. The display device according to claim 7 , wherein the third auxiliary electrode is configured to receive a second auxiliary signal of a phase that is different from a phase of the alignment signal and a phase of the first auxiliary signal.

9. The display device according to claim 1 , further comprising an insulating layer between the first auxiliary electrode and the first alignment electrode.

10. The display device according to claim 1 , further comprising:

a first connection electrode electrically connecting the first alignment electrode and one end of the light emitting element; and

a second connection electrode electrically connecting the second alignment electrode and another end of the light emitting element.

11. The display device according to claim 1 , wherein the light emitting element is electrically separated from the first auxiliary electrode and the second auxiliary electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2021
From: KIM, BUEM JOON; IM, HYUN DEOK
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 057729/0755 →
Priority Claims (1)
KR 10-2021-0017068 · Feb 5, 2021 · national
Continuity (1)
Related Publication 20220254958A1 · Aug 11, 2022