Patent ID: 7019327

Claim:
An organic semiconductor polymer for a thin film transistor comprising a unit having n-type semiconductor properties and a unit having p-type semiconductor properties in a polymer backbone, wherein the organic semiconductor polymer is a polythienylthiazole derivative represented by Formula 1 below: wherein, R 1 and R 4 are each independently a hydrogen atom, or a C 1-9 linear, branched or cyclic alkyl group; R 2 , R 3 and R 5 are each independently a hydrogen atom, a C 1-12 linear or branched alkyl group, —(CH 2 O) n —R 6 , —(CH 2 ) n —C(O)OR 6 , —(CH 2 ) n —OC(O)R 6 , —(CH 2 ) n —OC(O)OR 6 , or —(CH 2 ) n —C(O)OCH 2 OR 6 , in which n is an integer of 0 to 6 and R 6 is a hydrogen or a C 1-12 linear, branched or cyclic alkyl group); and l is a real number of 0.01–1.0 and m is a real number of 0.99–0.0, provided that the sum of l and m equals 1.