Electroluminescent devices

US7232617B2 · kind B2 · utility

Assignee

• Cityu Research Limited · CN

Inventors

• Shuit-Tong Lee · Sha Tin, CN
• Chun-Sing Lee · Hong Kong, CN
• Peng Wang · Longbeilingcun, CN
• Bao-Xiu Mi · Kowloon, CN

Key dates

• Filing date: Feb 4, 2003
• Grant date: Jun 19, 2007
• Expiry date: Feb 4, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/917
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A compound of formula [I]:X—R[I]wherein X represents the group:and R is either (i) represented by the formula [II]wherein n is 1 or 2, and the or each R7 group is independently selected from the group consisting of hydrogen and halogen atoms, cyano, nitro, mercapto, carbonyl and sulfone groups, and optionally substituted alkyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylthio, arylthio, ester, siloxy, cyclic hydrocarbon and heterocyclic groups;or (ii) is selected from the group consisting of optionally substituted alkyl, hydroxyalkyl, aryl, cyclic hydrocarbon and heterocyclic groups;wherein in each case R1–R6 are each independently selected from the group consisting of hydrogen and halogen atoms, cyano, nitro, mercapto, carbonyl and sulfone groups, and optionally substituted alkyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylthio, arylthio, ester, siloxy, cyclic hydrocarbon and heterocyclic groups. The compounds are useful as hole-transporting materials in electroluminescence devices.