Thin-film transistor, method for producing thin-film transistor and image display apparatus using thin-film transistor

A method of producing a thin-film transistor, comprising:

• forming a gate electrode on an insulative substrate;
• forming a gate insulating layer on the substrate and the gate electrode;
• forming a source electrode and a drain electrode on the gate insulating layer such that the source electrode and the drain electrode are spaced from each other;
• forming a semiconductor layer on the gate insulating layer such that the semiconductor layer is connected to the source electrode and the drain electrode;
• forming a semiconductor protective layer comprising a fluorine resin on the semiconductor layer;
• forming an interlayer insulating film comprising an insulative resin material and a non-ionic fluorine-containing surfactant on the source electrode, the drain electrode and the semiconductor protective layer;
• and
• forming an upper electrode on the interlayer insulating film such that the upper electrode is connected to the drain electrode via electrical conduction formed through the interlayer insulating film,
• wherein the forming of the interlayer insulating film comprises applying an insulative resin material solution including the non-ionic fluorine-containing surfactant on the source electrode, the drain electrode and the semiconductor protective layer such that a concentration of the non-ionic fluorine-containing surfactant is 10 wt. % or less with respect to the insulative resin material in the interlayer insulating film.