Electronic device having functional layer including particles and binder material

Patent metadata

Field	Value
Publication number	US-11101448-B2
Application number	US-201716348387-A
Country	US
Kind code	B2
Filing date	Sep 26, 2017
Priority date	Nov 8, 2016
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

Provided are an electronic device and an organic electroluminescence element both of which are excellent in optical properties as well as long-term storage stability and scratch resistance. Herein, the electronic device includes at least one functional layer on a resin substrate, and the electronic device is configured so that the functional layer contains a component with a structure of X—Y—X′ as a resin component; X and X′ independently include at least any one of the formulae (1)˜(7) respectively; and Y is a bivalent group including at least one S atom and one aromatic ring.

First claim

The invention claimed is:

1. An electronic device comprising at least a functional layer on a resin substrate, wherein
the functional layer contains a component with a structure of X—Y—X′;
X and X′ independently have any one of structures represented at least the following formulae (1)˜(7), respectively;

Y is a bivalent group comprising at least one S atom and one aromatic ring,
Y comprises any one of structures represented by —R—R′—, —R—S—R′—, and —R—S(O)—R′—,
R and R′ independently have any one of structures represented by the following formulae (8)˜(12), respectively,

and
when Y is represented by —R—R′—, at least one of R and R′ is represented by the formula (12).

2. An organic electroluminescence element, wherein the electronic device according to claim 1 is an organic electroluminescence element.

3. The organic electroluminescence element according to claim 2 , wherein an optical scattering layer is a layer comprising the functional layer containing particles and a binder.

4. The organic electroluminescence element according to claim 3 , wherein the optical scattering layer comprises spherical particles at a rate in 80% or more of a number of particles with an aspect rate of 2 or less as the particles.

5. The organic electroluminescence element according to claim 4 , wherein a mean particle diameter of the spherical particles is in the range from 200 nm to 500 nm.

6. The organic electroluminescence element according to claim 3 , wherein the optical scattering layer has a thickness larger than a mean particle diameter of the particles in the optical scattering layer, and a particle presence volume rate of the particles located in a region at a side of the resin substrate relative to a center in a thickness direction is larger than a particle presence volume rate of the particles located in a region at a side of a transparent conductive film thus formed on the optical scattering layer relative to a center in a thickness direction.

7. The organic electroluminescence element according to claim 3 , wherein a volume rate of the particles in the optical scattering layer is in the range from 1 volume % to 40 volume %.

8. The organic electroluminescence element according to claim 3 , wherein a difference in refractive indexes between the particle and the binder is in the range from 0.20 to 1.00.

9. The organic electroluminescence element according to claim 3 , wherein the optical scattering layer has a thickness in the range from 250 nm to 1000 nm.

Assignees

• Konica Minolta Inc
• Merck Patents Gmbh

Inventors

• Kobayashi Yasunobu
• Hakii Takeshi
• Furukawa Shun

Classifications

• H10K30/50

  Photovoltaic [PV] devices · CPC title

• C08G2261/3223

  containing one or more sulfur atoms as the only heteroatom, e.g. thiophene · CPC title

• H05B33/02

  Details · CPC title

• C09D165/00

  Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (C09D107/00 - C09D157/00, C09D161/00 take precedence); Coating compositions based on derivatives of such polymers · CPC title

• C08G2261/95

  Use in organic luminescent diodes · CPC title