Patent ID: 8456459
Filing Date: 2013-06-04
Classification: H01L,H04N

Abstract:
1. A semiconductor device comprising: a pixel comprising a light receiving portion and a display portion, the pixel comprising a first thin film transistor, a photodiode, a reset gate signal line, a sensor gate signal line, a sensor output wiring, and a sensor electric power source line, wherein the first thin film transistor comprises a semiconductor layer, wherein the photodiode comprises a photoelectric conversion layer, wherein the semiconductor layer and the photoelectric conversion layer are formed on a same surface, wherein when a light from the display portion is reflected by a subject, the pixel is configured to irradiate the photoelectric conversion layer with the light reflected by the subject, wherein a first terminal of the first thin film transistor is electrically connected to the sensor output wiring, wherein a second terminal of the first thin film transistor is electrically connected to the sensor electric power source line, wherein a gate of the first thin film transistor is electrically connected to a first terminal of the photodiode, wherein a gate insulating film is interposed between the semiconductor layer and the gate of the first thin film transistor, wherein an inter layer film is formed over the gate of the first thin film transistor, and wherein the inter layer film is in contact with the gate insulating film over the photoelectric conversion layer.