Patent ID: 8227906

Claim:
An image processor comprising: a single insulating substrate; a plurality of semiconductor layers directly and respectively laminated via insulating films on one surface of the substrate, wherein the plurality of semiconductor layers include a first semiconductor layer comprising polysilicon and a second semiconductor layer comprising amorphous silicon, wherein the second semiconductor layer is provided in an upper layer compared with the first semiconductor layer with respect to the substrate; a driver circuit comprising a polysilicon thin-film transistor formed from the first semiconductor layer and an amorphous silicon thin-film transistor formed from the second semiconductor layer; and a functional device array comprising a plurality of two-dimensionally arrayed functional devices with an amorphous silicon thin-film transistor structure formed from the second semiconductor layer; wherein the driver circuit comprises a scanning driver circuit provided with an output circuit section for outputting a scanning signal that sets any line of the functional devices arrayed in the functional device array in a selected state, and wherein the output circuit section comprises the amorphous silicon thin-film transistor.