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US 9,287,510 B2Granted
Thiadiazole, compound for light-emitting elements, light-emitting element, light-emitting apparatus, authentication apparatus, and electronic device
AssigneeSeiko Epson Corporation
InventorsHidetoshi Yamamoto, Tetsuji Fujita
Life of this patent
Estimating the term…
Abstract
The thiadiazole represented by formula (1), when used as a light-emitting material in a light-emitting element, allows the light-emitting element to emit near-infrared light: wherein, in formula (1), each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine.
Claims22
A mixture comprising a thiadiazole represented by formula (1):
- where each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine;
- and
- a compound represented by formula IRH-1:
- where n represents a natural number of 1 to 12 and R represents a substituent or a functional group, and each R is independently a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aryl amino group.
1 more element
A light-emitting element comprising:
- an anode;
- a cathode;
- and
- a light-emitting layer that is disposed between the anode and the cathode and, when electric current flows between the anode and the cathode, emits light,
- wherein the light-emitting layer contains a compound represented by formula (1) as a light-emitting material and a compound represented by formula IRH-1 as a host material;
- where each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine;
- where n represents a natural number of 1 to 12 and R represents a substituent or a functional group, and each R is independently a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aryl amino group.
4 more elements
A light-emitting element comprising:
- an anode;
- a cathode;
- and
- a light-emitting layer that is disposed between the anode and the cathode and, when electric current flows between the anode and the cathode, emits light,
- wherein the light-emitting layer contains a compound represented by formula (1) as a light-emitting material and a compound represented by formula IRH-4 as a host material;
- where each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine;
- where n represents a natural number of 1 to 10 and R represents a substituent or a functional group, and each R is independently a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aryl amino group.
4 more elements
A light-emitting element comprising:
- an anode;
- a cathode;
- a light-emitting layer that is disposed between the anode and the cathode and, when electric current flows between the anode and the cathode, emits light;
- and
- an electron transport layer, which is a layer having the capability of transporting electrons, provided between the cathode and the light-emitting layer so as to be in contact with the light-emitting layer;
- wherein the light-emitting layer contains a compound represented by formula (1) as a light-emitting material, and
- the electron transport layer contains a compound having an azaindolizine skeleton and an anthracene skeleton in the molecule as an electron transport material;
- where each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine.
5 more elements
Dependencies are inferred from the claim text.