Organic light emission apparatus and electronic equipment

Patent metadata

Field	Value
Publication number	US-2016293889-A1
Application number	US-201615061184-A
Country	US
Kind code	A1
Filing date	Mar 4, 2016
Priority date	Mar 31, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

An organic EL apparatus includes a substrate, an organic EL element that is disposed on the substrate, and a sealing layer that seals the organic light emission element by covering, and the sealing layer is a multilayer body which includes a first sealing layer, a buffer layer, and a second sealing layer respectively having different functions and being sequentially stacked from the organic EL element side. The second sealing layer is mainly made of silicon oxynitride, and includes an inner layer, an intermediate layer, and an outer layer being sequentially stacked on the organic EL element side. Stress of the intermediate layer is equal to or less than stress of the inner layer, and stress of the outer layer is greater than the stress of the inner layer.

First claim

What is claimed is:

1 . An organic light emission apparatus comprising:
a substrate; an organic light emission element that is disposed above the substrate; and a sealing layer that covers the organic light emission element, wherein the sealing layer including a first sealing layer, a buffer layer, and a second sealing layer, wherein the first sealing layer, the buffer layer, and the second sealing layer are sequentially stacked from the organic light emission element side, wherein the second sealing layer is mainly made of silicon oxynitride, and includes an inner layer, an intermediate layer, and an outer layer, wherein the inner layer, the intermediate layer, and the outer layer are sequentially stacked from the organic light emission element side, and wherein stress of the intermediate layer is equal to or less than stress of the inner layer, and stress of the outer layer is greater than the stress of the inner layer.

2 . The organic light emission apparatus according to claim 1 ,
wherein the stresses of the inner layer, the intermediate layer, and the outer layer are respectively 0 MPa or more and 1000 MPa or less.

3 . The organic light emission apparatus according to claim 2 ,
wherein the stress of the inner layer is 100 MPa or more and 300 MPa or less, wherein the stress of the intermediate layer is 0 MPa or more and 200 MPa or less, and wherein the stress of the outer layer is 400 MPa or more and 1000 MPa or less.

4 . The organic light emission apparatus according to claim 1 ,
wherein a thickness of the intermediate layer is the greatest among the thicknesses of the inner layer, the intermediate layer, and the outer layer.

5 . The organic light emission apparatus according to claim 1 ,
wherein the thickness of the inner layer is equal to the thickness of the outer layer.

6 . The organic light emission apparatus according to claim 1 ,
wherein the thicknesses of the inner layer, the intermediate layer, and the outer layer are respectively 100 nm or more and 300 nm or less.

7 . The organic light emission apparatus according to claim 1 ,
wherein a total thickness of the inner layer, the intermediate layer, and the outer layer is 400 nm or more and 1200 nm or less.

8 . The organic light emission apparatus according to claim 1 ,
wherein in the inner layer, when a transmittance of a peak generated at near 1000 cm −1 in a measurement using a Fourier transformation type infrared spectrophotometer is represented by A 1 [%], and the transmittance of a peak generated at near 3200 cm −1 is represented by B 1 [%], B 1 /A 1 is 0.1 or more and 0.25 or less, wherein in the intermediate layer, when the transmittance of the peak generated at near 1000 cm −1 in the measurement using the Fourier transformation type infrared spectrophotometer is represented by A 2 [%], and the transmittance of the peak generated at near 3200 cm −1 is represented by B 2 [%], B 2 /A 2 is 0.18 or more and 0.30 or less, and wherein in the outer layer, when the transmittance of the peak generated at near 1000 cm −1 in the measurement using the Fourier transformation type infrared spectrophotometer is represented by A 3 [%], and the transmittance of the peak generated at near 3200 cm −1 is represented by B 3 [%], B 3 /A 1 is 0.01 or more and 0.07 or less.

9 . The organic light emission apparatus according to claim 1 ,
wherein at the time of forming the intermediate layer, the intermediate layer is formed by being divided in plural times.

10 . The organic light emission apparatus according to claim 1 ,
wherein the first sealing layer is mainly made of silicon oxynitride, and the buffer layer is mainly made of resin material.

11 . An electronic equipment comprising:
the organic light emission apparatus according to claim 1 .

12 . An electronic equipment comprising:
the organic light emission apparatus according to claim 2 .

13 . An electronic equipment comprising:
the organic light emission apparatus according to claim 3 .

14 . An electronic equipment comprising:
the organic light emission apparatus according to claim 4 .

15 . An electronic equipment comprising:
the organic light emission apparatus according to claim 5 .

16 . An electronic equipment comprising:
the organic light emission apparatus according to claim 6 .

17 . An electronic equipment comprising:
the organic light emission apparatus according to claim 7 .

18 . An electronic equipment comprising:
the organic light emission apparatus according to claim 8 .

19 . An electronic equipment comprising:
the organic light emission apparatus according to claim 9 .

20 . An electronic equipment comprising:
the organic light emission apparatus according to claim 10 .

Assignees

• Seiko Epson Corp

Inventors

• Nakamura Hisatoshi

Classifications

• H10K59/878

  comprising reflective means · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K50/8445

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K59/1201 Primary

  Manufacture or treatment · CPC title

• H01L51/5256 Primary

  Electricity · mapped topic