Organic compound and organic electroluminescence device using the same

Patent metadata

Field	Value
Publication number	US-11038120-B2
Application number	US-201916251037-A
Country	US
Kind code	B2
Filing date	Jan 17, 2019
Priority date	Jan 17, 2019
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

The present invention discloses an organic compound represented by the following formula (1) and an organic electroluminescence device using the organic compound as the phosphorescent host material, the fluorescent host material, the fluorescent dopant material, the hole blocking material, or the electron transport material. The organic compound may lower a driving voltage and power consumption or increase a current efficiency or a half-life time of the organic electroluminescence device.

The same definition as described in the present invention.

First claim

The invention claimed is:

1. An organic compound represented by the following formula (1):

wherein A represents one of the formula (3), formula (4) and formula (6)

wherein X is a divalent bridge selected from the group consisting of O, S, SiR 5 R 6 ; P represents a substituted or unsubstituted fused ring hydrocarbon unit having two, three or four rings; Ar 1 represent a substituted or unsubstituted fused ring hydrocarbon unit with one to two rings; m represents an integer of 0 or 1; Y is a divalent bridge selected from the group consisting of O, S, SiR 7 R 8 , CR 9 R 10 and NAr 2 ; Z is a divalent bridge selected from the group consisting from O, S, CR 11 R 12 , SiR 13 R 14 and NAr 3 ; Ar 2 and Ar 3 independently represent a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; Ar 4 and Ar 5 independently represent a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted hetroaryl group having 6 to 30 carbon atoms; and R 2 , R 3 , R 5 to R 14 are independently selected from the group consisting of a hydrogen atom, a halide, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, and a substituted or unsubstituted aralkyl group having 7 to 30 carbon atoms.

2. The organic compound according to claim 1 , wherein the substituted alkyl group, the substituted alkoxy group, the substituted aryl group, the substituted aralkyl group, or the substituted heteroaryl group is substituted by a halide, an alkyl group, an alkoxy group, or an aryl group.

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

4. An organic compound selected from the group consist of:

5. An organic electroluminescence device comprising a pair of electrodes having a cathode and an anode, and between the pairs of electrodes comprising at least a light emitting layer and one or more layers of organic thin film layers, wherein the light emitting layer and/or the one or more thin film layers comprise an organic compound as a guest material, wherein the organic compound is represented by the following formula (1):

wherein A represents one of the formula (2) to formula (6)

wherein X is a divalent bridge selected from the group consisting of O, S, SiR 5 R 6 ; P represents a substituted or unsubstituted fused ring hydrocarbon unit having two, three or four rings; Ar 1 represent a substituted or unsubstituted fused ring hydrocarbon unit with one to two rings; m represents an integer of 0 or 1; Y is a divalent bridge selected from the group consisting of O, S, SiR 7 R 8 , CR 9 R 10 and NAr 2 ; Z is a divalent bridge selected from the group consisting from O, S, CR 11 R 12 , SiR 13 R 14 and NAr 3 ; Ar 2 and Ar 3 independently represent a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; Ar 4 and Ar 5 independently represent a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 6 to 30 carbon atoms; and R 1 to R 14 are independently selected from the group consisting of a hydrogen atom, a halide, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, and a substituted or unsubstituted aralkyl group having 7 to 30 carbon atoms.

6. The organic electroluminescence device according to claim 5 , wherein the light emitting layer comprising the organic compound with a general formula (1) is a fluorescent host material.

7. The organic electroluminescence device according to claim 5 , wherein the light emitting layer comprising the organic compound with a general formula (1) is a fluorescent emitter.

8. The organic electroluminescence device according to claim 5 , wherein the light emitting layer comprising the organic compound with a general formula (1) is a phosphorescent host material.

9. The organic electroluminescence device according to claim 5 , wherein the light emitting layer comprising the organic compound with a general formula (1) is an electron transport or hole blocking material.

10. The organic electroluminescence device according to claim 5 , wherein the light emitting layer emits fluorescent blue or green light.

11. The organic electroluminescence device according to claim 5 , whe

Assignees

• Yen Feng Wen
• Huang Tsun Yuan
• Luminescence Tech Corp

Inventors

• Yen Feng-Wen
• Huang Tsun-Yuan

Classifications

• H10K50/18

  Carrier blocking layers · CPC title

• H10K85/6572

  comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole · CPC title

• H10K85/615 Primary

  Polycyclic condensed aromatic hydrocarbons, e.g. anthracene · CPC title

• H10K2101/10

  Triplet emission · CPC title

• H01L51/0067

  Electricity · mapped topic