Invention Grant
- Patent Title: Area sensor and display apparatus provided with an area sensor
- Patent Title (中): 具有区域传感器的区域传感器和显示装置
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Application No.: US11278841Application Date: 2006-04-06
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Publication No.: US07786544B2Publication Date: 2010-08-31
- Inventor: Shunpei Yamazaki , Jun Koyama , Masato Yonezawa , Hajime Kimura , Yu Yamazaki
- Applicant: Shunpei Yamazaki , Jun Koyama , Masato Yonezawa , Hajime Kimura , Yu Yamazaki
- Applicant Address: JP Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Atsugi-shi, Kanagawa-ken
- Agency: Fish & Richardson P.C.
- Priority: JP2000-242932 20000810
- Main IPC: H01L31/105
- IPC: H01L31/105
Abstract:
An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.
Public/Granted literature
- US20060163577A1 Area Sensor and Display Apparatus Provided with an Area Sensor Public/Granted day:2006-07-27
Information query
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