IP Library Granted Patent US 7,741,776
Granted Patent B2
US 7,741,776 · App. 11/476,456 · Granted Jun 22, 2010

Organic EL display device having a protection layer

Assignee: Kyocera Corporation
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Quick Facts
Patent No.
US 7,741,776
App. No.
11/476,456
Granted
Jun 22, 2010
Kind
B2
Abstract

Provided is an organic EL (electroluminescence) display including: a substrate; a plurality of organic EL elements arranged on the substrate; an insulation member disposed between the adjacent organic EL elements; and a first protection layer which is sequentially formed from a region between the lower layer electrode and the function layer of the organic EL element to the surface of the insulation member and includes fluorine.

Claims (31)

1. An organic EL display comprising:

a substrate;

a plurality of organic EL elements arranged on the substrate and having a lower layer electrode, an upper layer electrode and a function layer interposed between the lower and the upper layer electrodes, the function layer including an organic light emitting layer;

an insulation member disposed between the adjacent organic EL elements; and

a first protection layer sequentially formed from a region between the lower layer electrode and the function layer to a surface of the insulation member, and comprising fluorine.

2. The organic EL display of claim 1 , wherein a thickness of the first protection layer is 10 nm or less in the region between the lower layer electrode and the function layer.

3. The organic EL display of claim 1 , wherein the first protection layer has a composition of CH x F y (0≦x≦1, 0.3≦y≦2, 1.3≦x+y≦2).

4. The organic EL display of claim 1 , wherein the first protection layer is formed substantially over an entire surface of the substrate.

5. The organic EL display of claim 4 , wherein the first protection layer is tapered down near an end portion of the substrate.

6. The organic EL display of claim 1 , further comprising a second protection layer which covers the organic EL elements,

wherein a periphery of the first protection layer is located inwards with respect to a periphery of the second protection layer.

7. The organic EL display of claim 1 , further comprising:

a sealing substrate disposed on the substrate; and

a sealing material interposed between the substrate and the sealing substrate, and surrounding a region where the plurality of organic EL elements are arranged,

wherein a periphery of the first protection layer is located inwards with respect to a region where the sealing material is formed.

8. An organic EL display comprising:

a substrate;

a plurality of organic EL elements arranged on the substrate and having a lower layer electrode, an upper layer electrode and a function layer interposed between the lower and the upper layer electrodes, the function layer including an organic light emitting layer;

an insulation member disposed between the adjacent organic EL elements; and

a first protection layer sequentially formed from a region between the lower layer electrode and the function layer to a surface of the insulation member, and comprising a water-repellent material.

9. The organic EL display of claim 8 , wherein the thickness of the first protection layer is 10 nm or less in the region between the lower layer electrode and the function layer.

10. The organic EL display of claim 8 , wherein the first protection layer comprises fluorine.

11. The organic EL display of claim 10 , wherein the first protection layer has a composition of CH x F y (0≦x≦1, 0.3≦y≦2, 1.3≦x+y≦2).

12. The organic EL display of claim 8 , wherein the first protection layer is formed substantially over an entire surface of the substrate.

13. The organic EL display of claim 8 , wherein the first protection layer is tapered down near an end portion of the substrate.

14. The organic EL display of claim 8 , further comprising a second protection layer which covers the organic EL elements,

wherein a periphery of the first protection layer is located inwards with respect to a periphery of the second protection layer.

15. The organic EL display of claim 8 , further comprising:

a sealing substrate disposed on the substrate; and

a sealing material disposed between the substrate and the sealing substrate, and surrounding a region where the plurality of organic EL elements are arranged,

wherein the periphery of the first protection layer is located inwards with respect to a region where the sealing material is formed.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2011
From: KYOCERA CORPORATION
To: LG DISPLAY CO., LTD.
Reel/Frame 026975/0555 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 31, 2006
From: MURAYAMA, KOJI; ABE, SHINICHI
To: KYOCERA CORPORATION
Reel/Frame 018035/0065 →
Priority Claims (2)
JP 2005-189695 · Jun 29, 2005 · national
JP 2006-145736 · May 25, 2006 · national
Continuity (1)
Related Publication 20070001596A1 · Jan 4, 2007