Organic compound and organic electroluminescence device using the same

Patent metadata

Field	Value
Publication number	US-11276828-B2
Application number	US-201916252711-A
Country	US
Kind code	B2
Filing date	Jan 21, 2019
Priority date	Jan 21, 2019
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

The present invention discloses an organic compound and an organic electroluminescence device using the organic compound as a host material, a fluorescent guest material, an electron transporting or a hole blocking material in the light emitting layer of the organic electroluminescence device. The organic compound may be for lowering a driving voltage, power consumption or increasing a current efficiency or half-life of the organic electroluminescence device.

The same definition as described in the present invention.

First claim

What is claimed is:

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

wherein X is a divalent bridge selected from the group consisting of O, S, SO, SO 2 , Se, NR 3 and SiR 4 R 5 ; m represents an integer of 0, 1, 2, 3, 4, 5, 6, 7 or 8; A represents a substituted or unsubstituted fused ring hydrocarbons unit with three rings if X is NR 3 ; A represents a substituted or unsubstituted fused ring hydrocarbons unit with two to three rings if X is O, S, SO, SO 2 , Se or SiR 4 R 5 ; R 1 to R 5 are independently selected from the group consisting of a hydrogen atom, a halogen, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 30 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 30 ring carbon atoms; and G 1 and G 2 independently represent a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted fluorene group, a substituted or unsubstituted benzofluorene 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 , a substituted or unsubstituted chrysenyl group, a substituted or unsubstituted triphenylenyl group, a substituted or unsubstituted benzimidazole group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted biscarbazolyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted diphenylphosphine oxide group, a substituted or unsubstituted triazinyl group, a substituted or unsubstituted diazinyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted phenanthroline group, a substituted or unsubstituted dihydroacridine group, a substituted or unsubstituted phenothiazine group, a substituted or unsubstituted phenoxazine group, a substituted or unsubstituted dihydrophenazine group, a substituted or unsubstituted diphenylamine group, a substituted or unsubstituted triphenylamine group, a substituted or unsubstituted phenyldibenzofuranylamine group, or a substituted or unsubstituted phenyldibenzothiophenylamine group.

2. The organic compound according to claim 1 , wherein G 1 and G 2 independently represent one of the following substituents:

3. An organic compound is one of the following compounds:

Assignees

• Yen Feng Wen
• Chuang Li Chieh
• Luminescence Tech Corp

Inventors

• Yen Feng-Wen
• Chuang Li-Chieh

Classifications

• H10K85/6576

  comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene · CPC title

• C07D471/04 Primary

  Ortho-condensed systems · CPC title

• C07F7/0816

  said ring comprising Si as a ring atom · CPC title

• C09K2211/1033

  with oxygen · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title