IP Library › Granted Patent US 11,114,582
Granted Patent B2
US 11,114,582 · App. 16/889,123 · Granted Sep 7, 2021

Display apparatus with increased self-alignment efficiency

Inventors: Hyunmin Cho (Yongin-si, KR); Daehyun Kim (Yongin-si, KR); Sungchul Kim (Yongin-si, KR); Jonghyuk Kang (Yongin-si, KR); Keunkyu Song (Yongin-si, KR); Jooyeol Lee (Yongin-si, KR); Hyundeok Im (Yongin-si, KR); Chio Cho (Yongin-si, KR); Hyeyong Chu (Yongin-si, KR); Sungjin Hong (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L33/0075H01L25/0753H01L27/156H01L33/06H01L33/32H01L33/38H01L33/405H01L33/44H01L33/62H05K1/11H05K1/181H01L2224/95085H01L2933/0016H05K2201/10106
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Quick Facts
Patent No.
US 11,114,582
App. No.
16/889,123
Granted
Sep 7, 2021
Kind
B2
Abstract

A display apparatus includes a substrate, a first electrode on the substrate, the first electrode including a first portion that has a flat upper surface and a second portion that protrudes from the first portion and has an inclined surface, a second electrode facing the first electrode in parallel on the substrate, the second electrode including a first portion that has a flat upper surface and a second portion that protrudes from the first portion and has an inclined surface, and a plurality of light-emitting devices separate from each other on the first electrode and the second electrode, the light-emitting devices each having a first end contacting the upper surface of the first portion of the first electrode and a second end contacting the upper surface of the first portion of the second electrode.

Claims (41)

1. A display apparatus comprising:

a substrate;

a first electrode on the substrate;

a second electrode on the substrate and being opposite the first electrode;

a plurality of light-emitting devices on the first electrode and the second electrode;

a third electrode on the first electrode and contacting the first electrode; and

a fourth electrode on the second electrode and contacting the second electrode,

wherein each of the light-emitting devices is between the first and second electrodes and the third and fourth electrodes, and

wherein one end of each of the light-emitting devices is between the first electrode and the third electrode.

2. The display apparatus of claim 1 , further comprising a partition wall around the first electrode and the second electrode.

3. The display apparatus of claim 2 , wherein the partition wall comprises an organic material.

4. The display apparatus of claim 1 , further comprising:

a first electrode line connected to the first electrode; and

a second electrode line connected to the second electrode.

5. The display apparatus of claim 4 , further comprising a partition wall overlapping the first electrode line.

6. The display apparatus of claim 1 , wherein a distance between the first electrode and the second electrode is less than a length of each of the plurality of light-emitting devices.

7. The display apparatus of claim 1 , wherein two sides of each of the light-emitting devices face a part of the first electrode and a part of the second electrode, respectively.

8. The display apparatus of claim 1 , further comprising a partition wall around the light-emitting devices.

9. A display apparatus comprising:

a substrate;

a first electrode on the substrate;

a second electrode on the substrate and being opposite the first electrode;

a plurality of light-emitting devices on the first electrode and the second electrode;

a third electrode on the first electrode and contacting the first electrode;

a fourth electrode on the second electrode and contacting the second electrode; and

a thin film transistor comprising a semiconductor layer comprising a source area and a drain area, a source electrode being connected to the source area and a drain electrode being connected to the drain area,

wherein each of the light-emitting devices is between the first and second electrodes and the third and fourth electrodes.

10. The display apparatus of claim 9 , wherein the source electrode or the drain electrode is connected to the first electrode or the second electrode.

11. The display apparatus of claim 9 , further comprising an insulation layer between the thin film transistor and the light-emitting devices.

12. The display apparatus of claim 11 , wherein the insulation layer includes a contact hole, and the first electrode or the second electrode is connected to the source electrode or the drain electrode of the thin film transistor through the contact hole.

13. The display apparatus of claim 11 , wherein the insulation layer comprises an organic material.

14. The display apparatus of claim 11 , wherein the insulation layer comprises an inorganic material.

15. A display apparatus comprising:

a substrate;

a first electrode on the substrate;

a second electrode on the substrate and being opposite the first electrode;

a plurality of light-emitting devices on the first electrode and the second electrode;

a third electrode on the first electrode and contacting the first electrode; and

a fourth electrode on the second electrode and contacting the second electrode,

wherein each of the light-emitting devices is between the first and second electrodes and the third and fourth electrodes, and

wherein the third electrode and the fourth electrode are on the light-emitting devices.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2021
From: CHO, HYUNMIN; KIM, DAEHYUN; KIM, SUNGCHUL; KANG, JONGHYUK; SONG, KEUNKYU; LEE, JOOYEOL; IM, HYUNDEOK; CHU, HYEYONG; HONG, SUNGJIN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 056010/0697 →
EMPLOYMENT AGREEMENT - WRITTEN OATH PROTECTION OF TRADE SECRETS Recorded Apr 22, 2021
From: CHO, CHIO
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 056018/0374 →
Priority Claims (1)
KR 10-2016-0088048 · Jul 12, 2016 · national
Continuity (2)
Continuation 15646590 · Jul 11, 2017
Related Publication 20200295223A1 · Sep 17, 2020
Cited By (3)
US 12,342,664 US 12,402,443 US 12,593,556