Patent ID: 6680131
Filing Date: 2004-01-20
Classification: C09K,H01L,Y10S

Abstract:
An organic electroluminescent device of the type which comprises an organic layer having a luminescent region and provided between an anode and a cathode, wherein said organic layer comprises, as an organic luminescent material, at least one styryl compound having an asymmetric structure and represented by the following general formula (1) wherein R1 and R2 may be the same or different and, respectively, represent an aryl group of the following general formula (2), (3) or (4): wherein R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, and R21 may be the same or different and independently represent a hydrogen atom, a saturated or unsaturated alkoxyl group, an alkyl group, an amino group, an alkylamino group or an aryl group, and X represents a substituted cyclic hydrocarbon group having at least two substituents, wherein substituents from said substituted cyclic hydrocarbon group may be the same or different and at least two of said substituents represents a cyano group, a nitro group or a halogen atom.