IP Library Granted Patent US 12,453,213
Granted Patent B2
US 12,453,213 · App. 18/622,091 · Granted Oct 21, 2025

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.
H10H20/83H01L21/68H01L25/0753H01L2221/68309H10H20/032
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Quick Facts
Patent No.
US 12,453,213
App. No.
18/622,091
Granted
Oct 21, 2025
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 (12)

1. A method of manufacturing a display device, the method comprising:

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

forming a first auxiliary electrode and a second auxiliary electrode separated from the first alignment electrode and the second alignment electrode; and

aligning a light emitting element between the first alignment electrode and the second alignment electrode by applying an alignment signal to the first alignment electrode, and applying a first auxiliary signal of a phase that is different from a phase of the alignment signal to the first auxiliary electrode.

2. The method according to claim 1 , further comprising setting the alignment signal to a voltage of a negative polarity, and setting the first auxiliary signal to a voltage of a positive polarity.

3. The method according to claim 1 , wherein aligning the light emitting element comprises applying a ground voltage to the second alignment electrode and to the second auxiliary electrode.

4. The method according to claim 1 , further comprising concurrently forming the first alignment electrode and the first auxiliary electrode.

5. The method according to claim 1 , further comprising forming a third auxiliary electrode and a fourth auxiliary electrode separated from the first auxiliary electrode and the second auxiliary electrode,

wherein aligning the light emitting element comprises applying a second auxiliary signal of a phase that is different from the phase of the alignment signal and that is different from the phase of the first auxiliary signal to the third auxiliary electrode.

6. The method according to claim 5 , further comprising setting the alignment signal to a voltage of a negative polarity, changing the first auxiliary signal from a voltage of a positive polarity to a voltage of the negative polarity, and changing the second auxiliary signal from a voltage of the negative polarity to a voltage of the positive polarity.

7. The method according to claim 5 , wherein aligning the light emitting element comprises applying a ground voltage to the fourth auxiliary electrode.

8. The method according to claim 5 , further comprising concurrently forming the first auxiliary electrode and the third auxiliary electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2025
From: KIM, BUEM JOON; IM, HYUN DEOK
To: SAMSUNG DISPLAY CO. LTD.
Reel/Frame 072109/0892 →
Priority Claims (1)
KR 10-2021-0017068 · Feb 5, 2021 · national
Continuity (2)
Division 17494654 · Oct 5, 2021
Related Publication 20240243228A1 · Jul 18, 2024
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