Patent ID: 8623745

Claim:
A thin-film transistor comprising: a substrate; a gate electrode; a gate insulating film comprising: a component (i): an oligomer compound or a polymer compound with a repeating unit represented by the following formula (1): where: R 1 and R 2 are independently a C 1 - 6 alkyl group, a C 3 - 6 alkenyl group, a monovalent organic group containing a C 6 - 10 aromatic ring, a trifluoromethyl group, or a pentafluoroethyl group; A 1 , A 2 , and A 3 are independently a hydrogen atom, a methyl group, or an ethyl group; and n is an integer of 2 to 500; and a component (ii): a compound having two or more blocked isocyanate groups in one molecule thereof; a source electrode and a drain electrode; and a semiconductor layer.