IP Library Granted Patent US 11,069,878
Granted Patent B2
US 11,069,878 · App. 16/571,909 · Granted Jul 20, 2021

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: JOLED, INC.
H01L51/5253H01L27/3244H01L51/524H01L51/5237H01L51/5246
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Quick Facts
Patent No.
US 11,069,878
App. No.
16/571,909
Granted
Jul 20, 2021
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 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, in which the peripheral region is provided on the first substrate and surrounds the display region.

Claims (65)

1. A display unit comprising:

a first substrate;

a light-emitting element between the first substrate and a second substrate in a display region, the light-emitting element including a first electrode layer, a luminous layer, and a second electrode layer;

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

a second inorganic layer covering the luminous layer;

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

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

a separation groove penetrating the first organic layer and the second organic layer and surrounding the display region;

a first sealing portion where the first inorganic layer and the second inorganic layer seal a first outer edge of the first organic layer and a first outer edge of the second organic layer at an inner side of the separation groove; and

a second sealing portion where the first inorganic layer and the second inorganic layer seal a second outer edge of the first organic layer and a second outer edge of the second organic layer other than at the first sealing portion,

wherein,

the second inorganic layer extends into the first inorganic layer via the separation groove and completely fills the separation groove,

a third organic layer and the first organic layer are at opposite sides of the second inorganic layer,

an outer periphery of the third organic layer surrounds the display region,

the third organic layer covers the light-emitting element in the display region, and

the first sealing portion is not overlapped by the third organic layer.

2. The display unit of claim 1 , wherein the second sealing portion is located outside of an outer edge of the third organic layer.

3. The display unit of claim 1 , further comprising a seal section bonding the second substrate to the second inorganic film, the seal section surrounding the display region and the third organic layer.

4. The display unit of claim 1 , wherein the third organic layer is between the second inorganic layer and the second substrate, and the first sealing portion is located inside of an outer edge of the second substrate.

5. The display unit of claim 1 , comprising a third inorganic layer on the first inorganic layer, the third inorganic layer being between the first inorganic layer and the second inorganic layer.

6. The display unit of claim 5 , wherein the third inorganic layer includes a metal.

7. The display unit of claim 1 , comprising a third inorganic layer on the second inorganic layer, the third inorganic layer being between the first inorganic layer and the second inorganic layer.

8. The display unit of claim 7 , wherein the third inorganic layer includes a metal.

9. The display unit of claim 1 , comprising a seal section on the second inorganic layer, the seal section comprising a conductive bonding material.

10. An electronic apparatus comprising the display unit of claim 1 .

11. The display unit of claim 1 , wherein the first inorganic layer and the second inorganic layer are in contact with each other at the second sealing portion.

12. The display unit of claim 1 , wherein the first organic layer and the second organic layer are adjacent to each other.

13. The display unit of claim 1 , further comprising a seal section bonding the second inorganic layer to the second substrate, the seal section surrounding the display region, the separation groove being between the first substrate and the seal section.

14. A display unit comprising:

a first substrate;

a light-emitting element in a display region, the light-emitting element including a first electrode layer, a luminous layer, and a second electrode layer;

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

a second inorganic layer covering the luminous layer;

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

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

a separation groove penetrating the first organic layer and the second organic layer and surrounding the display region;

a first sealing portion where the first inorganic layer and the second inorganic layer seal a first outer edge of the first organic layer and a first outer edge of the second organic layer at an inner side of the separation groove;

a second sealing portion where the first inorganic layer and the second inorganic layer seal a second outer edge of the first organic layer and a second outer edge of the second organic layer other than at the first sealing portion;

a third organic layer, the third organic layer and the first organic layer at opposites sides of the second inorganic layer, the third organic layer covering the light-emitting element in the display region, the third organic layer not overlapping the first sealing portion; and

a fourth inorganic layer adjacent an outer edge of the third organic layer,

wherein the second inorganic layer extends into the first inorganic layer via the separation groove and completely fills the separation groove.

15. The display unit of claim 14 , wherein the first organic layer and the second organic layer are adjacent to each other.

16. The display unit of claim 14 , further comprising a second substrate, the seal section bonding the second substrate to the second inorganic film, the separation groove being between the seal section and the first substrate.

17. A display unit comprising:

a first substrate;

a second substrate;

a light-emitting element in a display region, the light-emitting element including a first electrode layer, a luminous layer, and a second electrode layer;

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

a second inorganic layer covering the luminous layer;

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

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

a separation groove penetrating the first organic layer and the second organic layer and surrounding the display region;

a first sealing portion where the first inorganic layer and the second inorganic layer seal a first outer edge of the first organic layer and a first outer edge of the second organic layer at an inner side of the separation groove;

a second sealing portion where the first inorganic layer and the second inorganic layer seal a second outer edge of the first organic layer and a second outer edge of the second organic layer other than at the first sealing portion;

a seal section bonding the second inorganic layer to the second substrate; and

a third organic layer, the third organic layer and the first organic layer at opposites sides of the second inorganic layer, the third organic layer covering the light-emitting element in the display region,

wherein,

the second inorganic layer extends into the first inorganic layer via the separation groove and completely fills the separation groove,

the third organic layer is between the second inorganic layer and the second substrate,

the third organic layer and the first sealing portion do not overlap,

the second substrate seals the display region in cooperation with the seal section and the third organic layer,

the first sealing portion is outside of an outer edge of the third organic layer, and

the seal section is adjacent the outer edge of the third organic layer.

18. The display unit of claim 17 , wherein the first organic layer and the second organic layer are adjacent to each other.

19. The display unit of claim 17 , wherein the seal section is a conductive layer, and the separation groove being between the first substrate and the seal section.

Assignments (4)
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 →