Patent ID: 8178218
Filing Date: 2012-05-15
Classification: C09K,H01L,H05B,Y10S

Abstract:
1. An organic electroluminescent device material comprising an aromatic amine derivative represented by any of the following formulas (I) and (II): wherein each of A 1 to A 8 represents an alkyl group selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, pentyl, hexyl, heptyl, octyl, stearyl, trichloromethyl, and trifluromethyl; a substituted or unsubstituted aryl group having 5 to 50 ring carbon atoms; an unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms; an unsubstituted alkoxyl group having 1 to 50 carbon atoms; a substituted or unsubstituted arylamino group having 5 to 50 ring carbon atoms; a substituted or unsubstituted alkylamino group having 1 to 20 carbon atoms; or a halogen atom; each of m1 to m8 is independently an integer of 0 to 5, with the proviso that at least one of m1, m2, m3, and m4 is 1 or greater, and at least one of m5, m6, m7, and m8 is 1 or greater, and when any one of m1, m2, m3, m4, m5, m6, m7, and m8 is 2 or greater, groups represented by any of A 1 to A 8 may be identical to or different from one another, or may be linked together to form a saturated or unsaturated ring; each of R each of X