# US 10,312,451 B2 · Compound for organic electroluminescent device

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- Number: US 10,312,451 B2
- Document ID: US10312451B2
- Status: Granted
- Kind: B2
- Application number: 14/949,830
- Filed: 2015-11-23
- Published: 2016-07-28
- Granted: 2019-06-04
- Earliest claimed: 2015-01-26
- Applicants: Luminescence Technology Corporation
- Inventors: Feng-Wen Yen
- Web page: https://patentgrep.com/patent/US10312451B2

## CPC

- H10K 85/624: {containing six or more rings}
- C07C 13/62: with more than three condensed rings
- C09B 1/00: Dyes with anthracene nucleus not condensed with any other ring
- C09B 57/00: Other synthetic dyes of known constitution
- C09B 57/001: {Pyrene dyes}
- C09K 11/025: {non-luminescent particle coatings or suspension media}
- C09K 11/06: containing organic luminescent materials
- H05B 33/20: characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
- H10K 85/615: {Polycyclic condensed aromatic hydrocarbons, e.g. anthracene}
- H10K 85/622: {containing four rings, e.g. pyrene}
- H10K 85/625: {containing at least one aromatic ring having 7 or more carbon atoms, e.g. azulene}
- H10K 85/626: {containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene}
- H10K 85/654: {comprising only nitrogen as heteroatom (H10K85/652 takes precedence)}
- H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole}
- H10K 85/6576: {comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene}
- C07C 2603/24: Anthracenes; Hydrogenated anthracenes
- C07C 2603/26: Phenanthrenes; Hydrogenated phenanthrenes
- C07C 2603/48: Chrysenes; Hydrogenated chrysenes
- C07C 2603/50: Pyrenes; Hydrogenated pyrenes
- C07C 2603/54: containing more than five condensed rings
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 50/16: Electron transporting layers
- H10K 50/165: comprising dopants
- H10K 2101/10: Triplet emission
- H10K 2101/27: {Combination of fluorescent and phosphorescent emission}
- H10K 2101/30: Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values
- H10K 2101/40: Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C09B: ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES {, e.g. PIGMENTS}; MORDANTS; LAKES (fermentation or enzyme using processes to synthesise a desired chemical compound C12P)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

## Abstract

The present invention generally discloses an organic compound and organic electroluminescence (herein referred to as organic EL) device using the organic compound. More specifically, the present invention relates to an organic EL device employing the organic compound as fluorescent emitting host or phosphorescent emitting host which can display long lifetime, high efficiency.

## Claims

### Claim 1

A compound with a general formula(I) as follows:
wherein A represents a phenyl group or a substituted or unsubstituted fused ring hydrocarbon unit with two to four rings, L represents a substituted or unsubstituted divalent arylene group having 6 to 30 ring carbon atoms, Ar1 and Ar2 independently are selected from the group consisting of a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthracenyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted pyrenyl group and a substituted or unsubstituted chrysenyl group; R1 to R3 are independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms and a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms.

### Claim 2 (depends on 1)

The compound according to claim 1, wherein L is represented the following formulas:

### Claim 3 (depends on 1)

The compound according to claim 1, wherein Ar1 is represented the following formulas:

### Claim 4 (depends on 1)

The compound according to claim 1, wherein Ar2 is represented the following formulas:

### Claim 5

A compound of formula(III):
wherein L represents a single bond or a substituted or unsubstituted divalent arylene group having 6 to 30 ring carbon atoms, Ar1 and Ar2 independently are selected from the group consisting of a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthracenyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted pyrenyl group and a substituted or unsubstituted chrysenyl group; R1 to R3 are independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms and a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms.

### Claim 6 (depends on 5)

The compound according to claim 5, wherein L is represented the following formulas:

### Claim 7 (depends on 5)

The compound according to claim 5, wherein Ar1 is represented the following formulas:

### Claim 8 (depends on 5)

The compound according to claim 5, wherein Ar2 is represented the following formulas:

### Claim 9 (depends on 1)

A organic electroluminescence device comprising a pair of electrodes consisting of a cathode and an anode, and between the pairs of electrodes comprising at least a light emitting layer, one or more layers of organic thin film layer, wherein the light emitting layer comprising the compound according to claim 1.

### Claim 10 (depends on 9)

The organic electroluminescence device according to claim 9, wherein the light emitting layer comprising the compound with a general formula(I) is a host material.

### Claim 11 (depends on 9)

The organic electroluminescence device according to claim 9, wherein the light emitting layer comprising the compound with a general formula(I) is a fluorescent emitter.

### Claim 12 (depends on 9)

The organic electroluminescence device according to claim 9, wherein the light emitting layer emits fluorescent blue and green lights.

### Claim 13 (depends on 9)

The organic electroluminescence device according to claim 9, wherein the light emitting layer emits phosphorescent green lights.

### Claim 14 (depends on 9)

The organic electroluminescence device according to claim 9, wherein the device is an organic light emitting device.

### Claim 15 (depends on 9)

The organic electroluminescence device according to claim 9, wherein the device is a lighting panel.

### Claim 16 (depends on 9)

The organic electroluminescence device according to claim 9, wherein the device is a backlight panel.

### Claim 17

A compound with one of the following formulas: