# US 2014/0155600 A1 · Hole transport material for organic electroluminescence device and organic electroluminescence device comprising the same

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- Number: US 2014/0155600 A1
- Document ID: US20140155600A1
- Status: Published application
- Kind: A1
- Application number: 14/087,314
- Filed: 2013-11-22
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Xiulan JIN
- Web page: https://patentgrep.com/patent/US20140155600A1

## CPC

- H10K 85/636: {comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom}
- C07D 487/04: Ortho-condensed systems
- H10K 85/653: {comprising only oxygen as heteroatom}
- H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole}
- H10K 85/6574: {comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes}
- H10K 85/6576: {comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene}
- H10K 50/15: Hole transporting layers
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)

## Abstract

A hole transport material for an organic electroluminescence device, the hole transport material being represented by the following Formula 1,

## Claims

### Claim 1

A hole transport material for an organic electroluminescence device, the hole transport material being represented by compound (1) of following Formula 1:
wherein, Idc is an indolocarbazole divalent group,
each X of ring A is independently a methine group or a nitrogen atom,
Y is a methylene group, an oxygen atom, or a sulfur atom,
Ar1 is an aryl group having 6 to 20 carbon atoms,
each of R1-R5 independently represents a substituted or unsubstituted straight or branched chain alkyl group having 6 to 20 carbon atoms, or an aryl group or a heteroaryl group having 6 to 20 carbon atoms,
a is an integer of 0 to 9,
b is an integer of 0 to 4,
c is an integer of 0 to 10,
d is an integer of 0 to 5, and
e is an integer of 0 to 10.

### Claim 2 (depends on 1)

The hole transport material as claimed in claim 1, wherein the Idc is a divalent one of compounds (2) to (7) of following Formula 2,

### Claim 3 (depends on 1)

The hole transport material as claimed in claim 1, wherein ring A includes at least one nitrogen atom.

### Claim 4

An organic electroluminescence device comprising a hole transport layer that includes a hole transport material, the hole transport material being represented by compound (8) of following Formula 3:
wherein, Idc is an indolocarbazole divalent group,
each X of ring A is independently a methine group or a nitrogen atom,
Y is a methylene group, an oxygen atom, or a sulfur atom,
Ar1 is an aryl group having 6 to 20 carbon atoms,
each of R1-R5 independently represents a substituted or unsubstituted straight or branched chain alkyl group having 6 to 20 carbon atoms, or an aryl group or a heteroaryl group having 6 to 20 carbon atoms,
a is an integer of 0 to 9,
b is an integer of 0 to 4,
c is an integer of 0 to 10,
d is an integer of 0 to 5, and
e is an integer of 0 to 10.

### Claim 5 (depends on 4)

The organic electroluminescence device as claimed in claim 4, wherein the Idc is a divalent one of compounds (9) to (14) of following Formula 4,

### Claim 6 (depends on 4)

The organic electroluminescence device as claimed in claim 4, wherein ring A includes at least one nitrogen atom.