Patent ID: 8848126
Filing Date: 2014-09-30
Classification: G02F,H01L

Abstract:
1. An optical sensor comprising: a photodiode provided with a semiconductor film having a p-type semiconductor region, an intrinsic semiconductor region, and an n-type semiconductor region; a first gate line formed above the intrinsic semiconductor region, a negative voltage being applied to the first gate line; and a second gate line formed above the intrinsic semiconductor region, a positive voltage being applied to the second gate line, wherein the first gate line includes: a first boundary definition line that extends along a boundary between the intrinsic semiconductor region and the p-type semiconductor region and crosses the intrinsic semiconductor region; and a first extension line that extends from the first boundary definition line toward the second gate line, the second gate line includes: a second boundary definition line that extends along a boundary between the intrinsic semiconductor region and the n-type semiconductor region and crosses the intrinsic semiconductor region; and a second extension line that extends from the second boundary definition line toward the first gate line, and a predetermined clearance is formed between the first gate line and the second gate line, above the intrinsic semiconductor region.