发明授权
- 专利标题： Area sensor and display apparatus provided with an area sensor
- 专利标题（中）： 具有区域传感器的区域传感器和显示装置
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申请号： US11278841申请日： 2006-04-06
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公开(公告)号： US07786544B2公开(公告)日： 2010-08-31
- 发明人: Shunpei Yamazaki , Jun Koyama , Masato Yonezawa , Hajime Kimura , Yu Yamazaki
- 申请人： Shunpei Yamazaki , Jun Koyama , Masato Yonezawa , Hajime Kimura , Yu Yamazaki
- 申请人地址： JP Atsugi-shi, Kanagawa-ken
- 专利权人： Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人： Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址： JP Atsugi-shi, Kanagawa-ken
- 代理机构： Fish & Richardson P.C.
- 优先权： JP2000-242932 20000810
- 主分类号： H01L31/105
- IPC分类号： H01L31/105
摘要：
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.
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