Blickrichtungsdetektor und Kamera mit diesem Detektor

摘要

There is provided a liquid crystal unit having an on-chip photodetector. On a transparent substrate 1401 are laid down a metallic wiring 1422, an n-type a-Si 1423, an a-SiGe 1424, and a p-type a-Si 1425 successively, an insulating film 146 is formed, and then a transparent electrode 1427 is formed to have a light detection region.