IP Library Granted Patent US 11,201,309
Granted Patent B2
US 11,201,309 · App. 16/183,663 · Granted Dec 14, 2021

Display unit and electronic apparatus including a divided electrode

Inventors: Kaoru Abe (Tokyo, JP); Jiro Yamada (Tokyo, JP); Kazuma Teramoto (Tokyo, JP); Kenichi Nendai (Tokyo, JP); Hideki Kobayashi (Tokyo, JP); Masaki Nishimura (Tokyo, JP)
Assignee: JOLED INC.
H01L51/5209H01L27/3246H01L51/5225H01L51/5253H01L51/56H01L51/5218H01L51/5271H01L2251/5392H01L2251/568
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Quick Facts
Patent No.
US 11,201,309
App. No.
16/183,663
Granted
Dec 14, 2021
Kind
B2
Abstract

A display unit is provided with a plurality of pixels. The plurality of pixels each include a first electrode, an insulating film, an organic layer, and a second electrode. The insulating film is provided on the first electrode, and has openings. The organic layer is provided in each of the openings of the insulating film, and includes a light-emitting layer. The second electrode is provided on the organic layer. The first electrode includes a plurality of sub-electrodes that are provided to face the respective openings of the insulating film.

Claims (33)

1. An electronic apparatus comprising a display unit,

the display unit comprising a plurality of pixels, each of the plurality of pixels including:

a first electrode including a plurality of sub-electrodes and an end, wherein the end electrically connects each of the plurality of sub-electrodes, and each of the plurality of sub-electrodes is physically separated from an adjacent sub-electrode of the plurality of sub-electrodes by a slit,

an insulating film on the first electrode, wherein the insulating film includes openings that each face a corresponding sub-electrode of the plurality of sub-electrodes, and the insulating film covers the end,

an organic layer in each of the openings of the insulating film, wherein the organic layer comprises a light-emitting layer, and

a second electrode on the organic layer.

2. The display unit according to claim 1 , further comprising a reflector in each of the openings.

3. The display unit according to claim 2 , further comprising a second insulating film over the second electrode, wherein the reflector is formed based on a refractive index difference between the insulating film and the second insulating film, and the reflector comprises a sidewall angled with respect to a top surface of the first electrode.

4. The display unit according to claim 1 , wherein each of the plurality of sub-electrodes has a rectangular surface shape.

5. The display unit according to claim 4 , wherein each of the plurality of sub-electrodes forms a stripe shape as a whole.

6. The display unit according to claim 1 , wherein, in the pixel of the plurality of pixels, a portion of a sub-electrode of the plurality of sub-electrodes is cut from any other portion of the plurality of sub-electrodes.

7. The display unit according to claim 1 , wherein each of the plurality of sub-electrodes has a surface shape of a plurality of circular parts or a plurality of polygonal parts.

8. The display unit according to claim 1 , wherein the organic layer is continuous across each of the openings.

9. The display unit according to claim 1 , wherein the organic layer is on a top surface of the insulating film between adjacent openings.

10. The display unit according to claim 1 , further comprising a color filter, wherein the color filter is configured to transmit light from the organic layer in each of the openings.

11. The display unit according to claim 1 , wherein a first sub-electrode of the plurality of sub-electrodes has a length less than a length of a second sub-electrode of the plurality of sub-electrodes.

12. The display unit according to claim 1 , wherein a first sub-electrode of the plurality of sub-electrodes is discontinuous.

13. The display unit according to claim 12 , wherein the first sub-electrode is electrically connected to a second sub-electrode of the plurality of sub-electrodes at a first end of the first sub-electrode.

14. The display unit according to claim 13 , wherein the first sub-electrode is electrically connected to the second sub-electrode at a second end of the first sub-electrode, and the second end is opposite the first end.

15. The display unit according to claim 13 , wherein the first sub-electrode is electrically connected to a third sub-electrode of the plurality of sub-electrodes at a second end of the first sub-electrode, and the second end is opposite the first end.

16. The display unit according to claim 12 , wherein the first sub-electrode is electrically separated from a second sub-electrode of the plurality of sub-electrodes.

17. A display unit provided with a plurality of pixels,

a pixel of the plurality of pixels comprising:

a first electrode including a plurality of sub-electrodes, wherein a first sub-electrode of the plurality of sub-electrodes has a different length, measured in a first direction, from a second sub-electrode of the plurality of sub-electrodes;

an insulating film on the first electrode, wherein the insulating film includes openings that each face a corresponding sub-electrode of the plurality of sub-electrodes, and each of the openings has a same length, measured in the first direction;

at least a light-emitting layer in each of the openings of the insulating film; and

a second electrode above the light-emitting layer.

18. A display unit comprising:

a plurality of pixels, wherein a pixel of the plurality of pixels comprises:

a first electrode including a plurality of sub-electrodes and an end, wherein the end electrically connects each of the plurality of sub-electrodes, and each of the plurality of sub-electrodes is physically separated from an adjacent sub-electrode of the plurality of sub-electrodes by a slit,

an insulating film on the first electrode, wherein the insulating film includes openings that each face a corresponding sub-electrode of the plurality of sub-electrodes, and the insulating film covers the end,

an organic layer in each of the openings of the insulating film, wherein the organic layer comprises a light-emitting layer, and

a second electrode on the organic layer.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2025
From: JDI DESIGN AND DEVELOPMENT G.K.
To: MAGNOLIA BLUE CORPORATION
Reel/Frame 072039/0656 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2024
From: JOLED, INC.
To: JDI DESIGN AND DEVELOPMENT G.K.
Reel/Frame 066382/0619 →
CORRECTION BY AFFIDAVIT FILED AGAINST REEL/FRAME 063396/0671 Recorded Jun 12, 2023
From: JOLED, INC.
To: JOLED, INC.
Reel/Frame 064067/0723 →
SECURITY INTEREST Recorded Apr 20, 2023
From: JOLED, INC.
To: INCJ, LTD.
Reel/Frame 063396/0671 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2018
From: ABE, KAORU; YAMADA, JIRO; NENDAI, KENICHI; KOBAYASHI, HIDEKI; NISHIMURA, MASAKI
To: JOLED INC.
Reel/Frame 047442/0066 →