NOVELTY - An aromatic amine compound (I) is new.    USE - New aromatic amine compound is used for electro-organic device for electronic device e.g. organic electroluminescent device, organic solar cell, organophotoreceptor, organic transistor and monochrome/white illumination device (all claimed). Uses include but are not limited to mobile communication terminal, personal digital assistant, electronic dictionary, remote control, navigation apparatus, game machine, television and cellular phone.    ADVANTAGE - The aromatic amine compound provides electro-organic device with excellent luminous efficiency and durability.    DETAILED DESCRIPTION - An aromatic amine compound of formula (I) is new.    Ara=group of formula (b);    Arb=group of formula (c);    Arc=6-60C aryl, fluorenyl, 1-60C alkyl or 2-60C heterocyclyl containing hetero atom chosen from O, N, S, Si and P;    m,n=0 or 1;    X1,X2=NR', O, S or CR'R";    R',R"=Arc;    L1,L2=single bond, 6-60C aryl, fluorenyl, 2-60C heterocyclyl containing hetero atom chosen from O, N, S, Si and P, 3-60C aliphatic group, 6-60C divalent fused aryl;    l=0-4;    o,p=0-3;    q=0-6;    R1-R4=deuterium, tritium, halo, 6-60C aryl, fluorenyl, 2-60C heterocyclyl containing hetero atom chosen from O, N, S, Si and P, 1-60C alkyl, 2-20C alkenyl, 2-20C alkynyl, 3-60C cycloalkyl, 1-30C alkoxy, 6-30C aryloxy or -L3-N(R5)(R6);    or 2 of R1-R4=ring;    L3=single bond, 6-60C aryl, fluorenyl, 2-60C heterocyclyl containing hetero atom chosen from O, N, S, Si and P, 6-60C aryl or 3-60C fused aliphatic ring;    R5,R6=6-60C aryl, fluorenyl, 2-60C heterocyclyl containing hetero atom chosen from O, N, S, Si and P, or 1-60C alkyl;and    or R5 or R6+L3+N (excluding single bond)=heterocyclyl.    The aryl, fluorenyl, heterocyclyl, fused ring group, alkenyl, alkynyl, cycloalkyl, alkoxy or aryloxy are all optionally substituted by deuterium, halo, silyl, siloxane, boronyl, germanyl, cyano, nitro, 1-20C arylthio, 1-20C alkoxy, 1-20C alkyl, 2-20C alkenyl, 2-20C alkynyl or 6-20C aryl. An INDEPENDENT CLAIM is included for electro-organic device (100).    DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of electro-organic device.    Organic electric device (100)    Substrate (110)    Electrodes (120,180)    Hole-injection layer (130)    Hole-transport layer (140)