Light-emitting device and insoluble film

Patent metadata

Field	Value
Publication number	US-2023225174-A1
Application number	US-202018014469-A
Country	US
Kind code	A1
Filing date	Jul 7, 2020
Priority date	Jul 7, 2020
Publication date	Jul 13, 2023
Grant date	—

Abstract

A light-emitting device includes a light-emitting element and an insoluble film covering the light-emitting element. The insoluble film includes one layer each of an inorganic insoluble layer and an organic insoluble layer. The organic insoluble layer contains a polymer material that includes, in the molecular chain, an inorganic atom, and a nitrogen atom and/or an oxygen atom.

First claim

1 . A light-emitting device comprising:
a light-emitting element; and an insoluble film covering the light-emitting element, wherein the insoluble film comprises one layer each of an inorganic insoluble layer and an organic insoluble layer, the organic insoluble layer includes a polymer material comprising, in the molecular chain, an inorganic atom, and a nitrogen atom and/or an oxygen atom, the polymer material is a phosphazene polymer, and the phosphazene polymer is at least one type of polymer represented by general formula (1):

(wherein, R1 and R2 are mutually independent, and each denotes an —O(CH 2 ) m CH 3 group, an —NH(CH 2 ) m CH 3 group, an —O(C 6 H 4 )CH 3 group, an —NH(C 6 H 4 )CH 3 group, an —O(CH 2 ) m CF 3 group, an —NH(CH 2 ) m CF 3 group, an —O(C 6 H 4 )C 2 H 5 group, an —NH(C 6 H 4 )C 2 H 5 group, an —O(CH 2 ) m F group, an —NH(CH 2 ) m F group, an —N{(CH 2 ) m CH 3 } 2 group, an —N{(C 6 H 4 )CH 3 } 2 group, an —N{(CH 2 ) m CF 3 } 2 group, an —N{(C 6 H 4 )C 2 H 5 } 2 group, or an —N{(CH 2 ) m F} 2 group, each m is respectively independent and denotes an integer from 1 to 10, an n denotes an integer from 1 to 3000).

2 . (canceled)

3 . (canceled)

4 . The light-emitting device according to claim 1 ,
wherein the phosphazene polymer is at least one type of polymer selected from the group consisting of a polymer in which R1 and R2 are each an —O(CH 2 ) 2 CH 3 group, a polymer in which R1 is an —O(C 6 H 4 )CH 3 group and R2 is an —NH(C 6 H 4 )CH 3 group, and a polymer in which R1 is an —N(C 2 H 5 ) 2 group and R2 is an —N{(C 6 H 4 )C 2 H 5 } 2 group.

5 . The light-emitting device according to claim 1 ,
wherein the organic insoluble layer further comprises a (meth)acrylic-based polymer.

6 . The light-emitting device according to claim 5 ,
wherein the (meth)acrylic-based polymer is a polymer of at least one type of monomer represented by general formula (2):

(wherein, R3 denotes a hydrogen atom or a methyl group, and p denotes an integer from 1 to 10).

7 . The light-emitting device according to claim 5 ,
wherein a mixing ratio of the phosphazene polymer to the (meth)acrylic-based polymer in terms of a weight ratio is in a range from 1:8 to 2:1.

8 . The light-emitting device according to claim 1 ,
wherein the inorganic insoluble layer is a SiNx film, and x is 1 or 2.

9 . The light-emitting device according to claim 1 ,
wherein the insoluble film is obtained by layering, in order from the light-emitting element side, the inorganic insoluble layer and the organic insoluble layer.

10 . The light-emitting device according to claim 1 ,
wherein the light-emitting element is an organic light-emitting diode element.

11 . The light-emitting device according to claim 1 ,
wherein the light-emitting device is a display device.

12 . An insoluble film comprising:
one inorganic insoluble layer; and one organic insoluble layer, wherein the organic insoluble layer includes a polymer material comprising, in the molecular chain, an inorganic atom, and a nitrogen atom and/or an oxygen atom, the polymer material is a phosphazene polymer, and the phosphazene polymer is at least one type of polymer represented by general formula (1):

(wherein, R1 and R2 are mutually independent, and each denotes an —O(CH 2 ) m CH 3 group, an —NH(CH 2 ) m CH 3 group, an —O(C 6 H 4 )CH 3 group, an —NH(C 6 H 4 )CH 3 group, an —O(CH 2 ) m CF 3 group, an —NH(CH 2 ) m CF 3 group, an —O(C 6 H 4 )C 2 H 5 group, an —NH(C 6 H 4 )C 2 H 5 group, an —O(CH 2 ) m F group, an —NH(CH 2 ) m F group, an —N{(CH 2 ) m CH 3 } 2 group, an —N{(C 6 H 4 )CH 3 } 2 group, an —N{(CH 2 ) m CF 3 } 2 group, an —N{(C 6 H 4 )C 2 H 5 } 2 group, or an —N{CH 2 ) m F} 2 group, each m is respectively independent and denotes an integer from 1 to 10, an n denotes an integer from 1 to 3000).

13 . (canceled)

14 . (canceled)

15 . The insoluble film according to claim 12 ,
wherein the phosphazene polymer is at least one type of polymer selected from the group consisting of a polymer in which R1 and R2 are each an —O(CH 2 ) 2 CH 3 group, a polymer in which R1 is an —O(C 6 H 4 )CH 3 group and R2 is an —NH(C 6 H 4 )CH 3 group, and a polymer in which R1 is an —N(C 2 H 5 ) 2 group and R2 is an —N{(C 6 H 4 )C 2 H 5 } 2 group.

16 . The insoluble film according to claim 12 ,
wherein the organic insoluble layer further comprises a (meth)acrylic-based polymer.

17 . The insoluble film according to claim 16 ,
wherein the (meth)acrylic-based polymer is a polymer of at least one type of monomer represented by general formula (2):

(wherein, R3 denotes a hydrogen atom or a methyl group, and p denotes an integer from 1 to 10).

18 . The insoluble film according to claim 16 ,
wherein a mixing ratio of the phosphazene polymer to the (meth)acrylic-based polymer in terms of a weight ratio is in a range from 1:8 to 2:1 by weight ratio.

19 . The insoluble film according to claim 12 ,
wherein the inorganic insoluble layer is a SiNx film, and x is 1 or 2.

Assignees

• Sharp Kk

Inventors

• Mizusaki Masanobu

Classifications

• H10K59/873 Primary

  Encapsulations · CPC title

• H05B33/14

  characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source} · CPC title

• H05B33/04

  Sealing arrangements {, e.g. against humidity} · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• C09D133/10 Primary

  Homopolymers or copolymers of methacrylic acid esters · CPC title