NOVELTY - A dibenzothiophene and arylamine derivative compound (1) is new.    USE - New dibenzothiophene and arylamine derivative compound for use in an organic electric device such as organic electro luminescence device e.g. organic LED (OLED), organic solar cell, organophotoreceptor (OPC) drum and organic thin film transistor, of a display device (all claimed).    ADVANTAGE - The organic layer of the device is made of the derivative compound, thus manufacturing the device in a better manner.    DETAILED DESCRIPTION - A dibenzothiophene and arylamine derivative compound of formula (1) is new.    A=a group of formula (i) or (ii);    X=(CR'R'')k, (SiR'R'')k, O or NR';    R', R''=6-50C aromatic hydrocarbyl, 1-50C alkoxy, 7-50C aralkyl, 5-50C aryloxy, 5-50C arylthio, 1-50C alkoxycarbonyl (all optionally substituted), carboxy, halo, cyano, nitro or hydroxy), or    R' + R''=a ring;    k=1-10;    a, b=aromatic rings;    n=1-3;    Ar1=optionally substituted 6-40C aromatic hydrocarbyl;    R1= 6-60C aryl (optionally subsituted by at least one 1-60C alkyl, 1-60C alkoxy, 1-60C alkylamino, 1-6C arylamino, 1-60C alkylthiophenyl, 6-60C arylthiophenyl, 2-60C alkenyl, 2-60C alkynyl, 3-60C cycloalkyl, 6-60C aryl optionally substituted by D, 8-60C arylalkenyl, optionally substituted silyl, optionally substituted boron, optionally substituted germanium or optionally substituted 5-60C hetero ring group), 5-60C hetero ring group (optionally subsituted by at least one halo, CN, NO2, 1-60 C alkyl, 1-60C alkoxy, 1-60C alkylamino, 1-60C arylamino, 1-60C alkylthio, 2-60C alkenyl, 2-60C alkynyl, 3-60C cycloalkyl, 6-60C aryl, 6-60C aryl optionally substituted by D, optionally substituted silyl, optionally substituted boron, optionally substituted germanium or optionally substituted 5-60C hetero ring group) or fused ring group comprising 6-60C aryl and 460C aliphatic ring (optionally substituted by halo, optionally substituted aliphatic hydrocarbyl, optionally substituted aryl or optionally substituted heteroaryl), and    L=a single bond or optionally substituted arylene, optionally substituted heteroarylene or optionally substituted aliphatic hydrocarbyl.    INDEPENDENT CLAIMS are also included for the following:    (1) an organic electric device comprising a base that is made of dibenzothiophene and arylamine derivative compound    (2) a display device comprising a terminal and a controller for operating the display device.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an organic electro luminescence device. '(Drawing includes non-English language text)'