US 8,785,001 B2Granted

Organic electroluminescent devices

AssigneeMerck Patent GmbH

InventorsHorst Vestweber, Philipp Stoessel, Holger Heil

Life of this patent

Estimating the term…

Abstract

The present invention relates to mixtures of organic materials, to the use of these mixtures in organic electroluminescent devices, and to organic electroluminescent devices comprising these mixtures.

Claims23

Dependent claims

An organic electroluminescent device comprising an anode, a cathode and at least one organic layer, wherein said at least one organic layer comprises:

at least one compound of formula (1)
wherein
Ar1 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R1;
Ar2 is, identically or differently on each occurrence, a divalent arylene or heteroarylene group having 5 to 20 aromatic ring atoms optionally substituted by one or more radicals R1;
R1 is, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
Si(R3)3;
B(OR3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more substituents R1 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
at least one compound of formula (2) or formula (3)
wherein
Ar3 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R2;
X is, identically or differently on each occurrence, a divalent group containing up to 40 C atoms, —O—, —S—, —NH—, or a single bond;
R2 and R4
are, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
N(R3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more adjacent substituents R4 optionally define a mono- or polycyclic, aliphatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
n is, identically or differently on each occurrence, 0, 1, 2, 3, or 4;
wherein said at least one organic layer is an emitting layer;
wherein said at least one compound of formula (1) is present in said emitting layer as a dopant in an amount of from 1.0 to 20.0% by weight;
and
wherein said at least one compound of formula (2) or formula (3) is present in said emitting layer as a host in an amount of from 80.0 to 99.0% by weight.

42 more elements

A mixture comprising at least one compound of formula (1)

wherein
Ar1 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R1;
Ar2 is, identically or differently on each occurrence, a divalent arylene or heteroarylene group having 5 to 20 aromatic ring atoms optionally substituted by one or more radicals R1;
R1 is, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
Si(R3)3;
B(OR3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C=Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more substituents R1 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
at least one compound of formula (3)
wherein
Ar3 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R2;
X is, identically or differently on each occurrence, a divalent group containing up to 40 C atoms, —O—, —S—, —NH—, or a single bond;
R2 and R4
are, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
N(R3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more adjacent substituents R4 optionally define a mono- or polycyclic, aliphatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
n is, identically or differently on each occurrence, 0, 1, 2, 3, or 4;
wherein said at least one compound of formula (1) is present in said mixture as a dopant in an amount of from 1.0 to 20.0% by weight;
and
wherein said at least one compound of formula (2) or formula (3) is present in said mixture as a host in an amount of from 80.0 to 99.0% by weight.

40 more elements

An organic electroluminescent device comprising an emitting layer comprising a mixture comprising at least one compound of formula (1)

wherein
Ar1 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R1;
Ar2 is, identically or differently on each occurrence, a divalent arylene or heteroarylene group having 5 to 20 aromatic ring atoms optionally substituted by one or more radicals R1;
R1 is, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
Si(R3)3;
B(OR3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more substituents R1 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and at least one compound of formula (2) or formula (3)
wherein
Ar3 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R2;
X is, identically or differently on each occurrence, a divalent group containing up to 40 C atoms, —O—, —S—, —NH—, or a single bond;
R2 and R4 are, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
N(R3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more adjacent substituents R4 optionally define a mono- or polycyclic, aliphatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
n is, identically or differently on each occurrence, 0, 1, 2, 3, or 4;
wherein said at least one compound of formula (1) is present in said mixture as a dopant in an amount of from 1.0 to 20.0% by weight;
and
wherein said at least one compound of formula (2) or formula (3) is present in said mixture as a host in an amount of from 80.0 to 99.0% by weight.

38 more elements

An organic field-effect transistor, an organic thin-film transistor, an organic light-emitting transistor, an organic integrated circuit, an organic solar cell, an organic field-quench device, an organic photoreceptor, or an organic laser diode comprising an emitting layer comprising a mixture comprising at least one compound of formula (1)

wherein
Ar1 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R1;
Ar2 is, identically or differently on each occurrence, a divalent arylene or heteroarylene group having 5 to 20 aromatic ring atoms optionally substituted by one or more radicals R1;
R1 is, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
Si(R3)3;
B(OR3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more substituents R1 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
at least one compound of formula (2) or formula (3)
wherein
Ar3 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R2;
X is, identically or differently on each occurrence, a divalent group containing up to 40 C atoms, —O—, —S—, —NH—, or a single bond;
R2 and R4 are, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
N(R3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more adjacent substituents R4 optionally define a mono- or polycyclic, aliphatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
n is, identically or differently on each occurrence, 0, 1, 2, 3, or 4;
wherein said at least one compound of formula (1) is present in said mixture as a dopant in an amount of from 1.0 to 20.0% by weight;
and
wherein said at least one compound of formula (2) or formula (3) is present in said mixture as a host in an amount of from 80.0 to 99.0% by weight.

39 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/096,492Filed 17 Nov 2006
Priority: DE 10 2005 058 5578 Dec 2005
Published: US 2008/0297037 A14 Dec 2008
Granted: 22 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

H10K 85/631
Organic compounds having low molecular weight: amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials
H05B 33/14
Light sources with substantially two-dimensional [2D] radiating surfaces: characterised by the chemical or physical composition or the arrangement…
H10K 85/626
Polycyclic condensed aromatic hydrocarbons, e.g. anthracene: containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene

Family

US 2008/0297037 A1Pre-grant publication · published 4 Dec 2008
US 8,785,001 B2This patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

An organic electroluminescent device comprising an anode, a cathode and at least one organic layer, wherein said at least one organic layer comprises:

at least one compound of formula (1)
wherein
Ar1 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R1;
Ar2 is, identically or differently on each occurrence, a divalent arylene or heteroarylene group having 5 to 20 aromatic ring atoms optionally substituted by one or more radicals R1;
R1 is, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
Si(R3)3;
B(OR3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3—, and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more substituents R1 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
at least one compound of formula (2) or formula (3)
wherein
Ar3 is, identically or differently on each occurrence, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R2;
X is, identically or differently on each occurrence, a divalent group containing up to 40 C atoms, —O—, —S—, —NH—, or a single bond;
R2 and R4
are, identically or differently on each occurrence, H;
F;
Cl;
Br;
I;
CN;
N(R3)2;
a straight-chain alkyl, alkoxy, or thioalkoxy group having up to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
a branched or cyclic alkyl, alkoxy, or thioalkoxy group having 3 to 40 C atoms, optionally substituted by one or more radicals R3, wherein one or more non-adjacent CH2 groups is optionally replaced by —R3C═CR3—, —C≡C—, Si(R3)2, Ge(R3)2, Sn(R3)2, C═O, C═S, C═Se, C═NR3, —O—, —S—, —N(R3)—, or —CONR3— and wherein one or more H atoms is optionally replaced by F, Cl, Br, I, CN, or NO2;
an aryl or heteroaryl group having 5 to 30 aromatic ring atoms optionally substituted by one or more radicals R3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms optionally substituted by one or more radicals R3;
or a combination of two, three, four or five of these systems;
and wherein two or more adjacent substituents R4 optionally define a mono- or polycyclic, aliphatic ring system with one another;
R3 is, identically or differently on each occurrence, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
wherein two or more radicals R3 optionally define a mono- or polycyclic, aliphatic or aromatic ring system with one another;
and
n is, identically or differently on each occurrence, 0, 1, 2, 3, or 4;
wherein said at least one organic layer is an emitting layer;
wherein said at least one compound of formula (1) is present in said emitting layer as a dopant in an amount of from 1.0 to 20.0% by weight;
and
wherein said at least one compound of formula (2) or formula (3) is present in said emitting layer as a host in an amount of from 80.0 to 99.0% by weight.

42 more elements

Facts

Application

12/096,492Filed 17 Nov 2006

Priority

DE 10 2005 058 5578 Dec 2005

Published

US 2008/0297037 A14 Dec 2008

Granted

22 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification20 codes

H10K 85/631
Organic compounds having low molecular weight: amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials
H05B 33/14
Light sources with substantially two-dimensional [2D] radiating surfaces: characterised by the chemical or physical composition or the arrangement…
H10K 85/626
Polycyclic condensed aromatic hydrocarbons, e.g. anthracene: containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene