IP Library Granted Patent US 12,302,698
Granted Patent B2
US 12,302,698 · App. 18/475,669 · Granted May 13, 2025

Display unit with moisture proof film outside of seal section and electronic apparatus with said display unit

Inventors: Takatoshi Saito (Kanagawa, JP); Kenichi Izumi (Kanagawa, JP); Shinichi Teraguchi (Kanagawa, JP); Tadakatsu Nakadaira (Kanagawa, JP); Mikihiro Yokozeki (Kanagawa, JP); Shota Nishi (Kanagawa, JP); Manabu Kodate (Kanagawa, JP)
Assignee: JDI DESIGN AND DEVELOPMENT G.K.
H10K50/844H10K50/84H10K50/841H10K50/8426H10K59/12
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Quick Facts
Patent No.
US 12,302,698
App. No.
18/475,669
Granted
May 13, 2025
Kind
B2
Abstract

A display unit including: a first substrate and a second substrate that are disposed to face each other; a first organic insulating layer on the first substrate; a plurality of light-emitting elements arrayed in a display region, the display region being on the first organic insulating layer and facing the second substrate; and a first moisture-proof film covering the first organic insulating layer in a peripheral region, the peripheral region being provided on the first substrate and surrounding the display region.

Claims (34)

1. A display unit comprising:

a substrate;

a light-emitting element disposed in a display region on the substrate, the light-emitting element including a stack structure having a first electrode layer, a luminous layer, and a second electrode layer;

a first inorganic layer between the substrate and the luminous layer;

a second inorganic layer on the luminous layer;

a first organic layer between the substrate and the first electrode layer;

a second organic layer between the first electrode layer and the second inorganic layer;

a third inorganic layer between the first organic layer and the first inorganic layer; and

a first separation section comprised of portions of the third inorganic layer and the second inorganic layer and that abuts both a first edge of the first organic layer and an outer edge of the second organic layer between the third inorganic layer and the second inorganic layer, the first separation section having a separation groove in the first organic and second organic layers,

wherein, within the first separation section, a surface of the second inorganic layer facing away from the third inorganic layer is effectively continuously planar above the entire separation groove.

2. The display unit according to claim 1 , further comprising a color filter layer above the second electrode layer.

3. The display unit according to claim 1 , further comprising a light-shielding film above the second electrode layer.

4. The display unit according to claim 1 , further comprising a third organic layer, the second inorganic layer being positioned between the first organic layer and the third organic layer, the first separation section overlapping the third organic layer.

5. The display unit according to claim 4 , further comprising a transparent layer, the third organic layer being positioned between the second inorganic layer and the transparent layer, the first separation section overlapping the transparent layer.

6. The display unit according to claim 1 , further comprising a second separation section abutting a second outer edge of the first organic layer, the first separation section being positioned between the second separation section and the display region.

7. The display unit according to claim 6 , wherein the second separation section is comprised of portions of the second inorganic layer and the third inorganic layer.

8. The display unit according to claim 6 , wherein the first electrode has a portion that penetrates the first organic layer at the first separation section.

9. A display unit comprising:

a substrate;

a light-emitting element disposed in a display region on the substrate, the light-emitting element including a stack structure having a first electrode layer, a luminous layer, and a second electrode layer;

a first inorganic layer between the substrate and the luminous layer;

a second inorganic layer on the luminous layer;

a first organic layer between the substrate and the first electrode layer;

a second organic layer between the first electrode layer and the second inorganic layer;

a third inorganic layer between the first organic layer and the first inorganic layer, and

a first separation section comprised of portions of the third inorganic layer and the second inorganic layer and that abuts a first edge of the first organic layer and an outer edge of the second organic layer between the third inorganic layer and the second inorganic layer, the first separation section having a separation groove in the first organic and second organic layers,

wherein, within the first separation section, a surface of the second inorganic layer facing away from the third inorganic layer is effectively continuously planar above the entire separation groove.

10. The display unit according to claim 9 , further comprising a color filter layer above the second electrode layer.

11. The display unit according to claim 9 , further comprising a light-shielding film above the second electrode layer.

12. The display unit according to claim 9 , further comprising a third organic layer, the second inorganic layer being positioned between the first organic layer and the third organic layer, the first separation section overlapping the third organic layer.

13. The display unit according to claim 12 , further comprising a transparent layer, the third organic layer being positioned between the second inorganic layer and the transparent layer, the first separation section overlapping the transparent layer.

14. The display unit according to claim 12 , further comprising a second separation section sealing a second outer edge of the first organic layer, the first separation section being positioned between the second separation section and the display region.

15. The display unit according to claim 14 , wherein the second separation section is comprised of portions of the second inorganic layer and the third inorganic layer.

16. The display unit according to claim 14 , wherein the first electrode has a portion that penetrates the first organic layer at the first separation section.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 31, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA BLUE CORPORATION
Reel/Frame 071890/0374 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE APPLICATION NUMBERS RECORDED AGAINST, ONE OF WHICH WAS INCORRECTLY TRANSCRIBED; APPLICATION 18475699 WAS RECRDED INCORRECTLY AND SHOULD HAVE BEEN LISTED INSTEAD AS 18475669 PREVIOUSLY RECORDED AT REEL: 67060 FRAME: 252. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jul 30, 2024
From: JOLED INC.
To: JDI DESIGN AND DEVELOPMENT G.K.
Reel/Frame 068377/0872 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2024
From: JOLED INC.
To: JDI DESIGN AND DEVELOPMENT G.K.
Reel/Frame 067060/0252 →