发明授权
US06686959B1 Method for controlling a photosensitive device with low image retention, and photosensitive device implementing same
有权
用于控制具有低图像保持力的感光装置的方法和实现其的感光装置
- 专利标题： Method for controlling a photosensitive device with low image retention, and photosensitive device implementing same
- 专利标题（中）： 用于控制具有低图像保持力的感光装置的方法和实现其的感光装置
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申请号： US09367869申请日： 1999-09-03
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公开(公告)号： US06686959B1公开(公告)日： 2004-02-03
- 发明人: Thierry Ducourant , Christophe Chaussat
- 申请人： Thierry Ducourant , Christophe Chaussat
- 优先权： FR9702752 19970307
- 主分类号： H04N5217
- IPC分类号： H04N5217
摘要：
A drive process for an array of photosensitive points produced on a semiconductor material. Each of the points has a photodiode connected in series with a switch element. The photodiode is reverse-biased and produces charges when it is exposed to a light signal during an imaging phase. Before the imaging phase, the photosensitive points are illuminated with an additional light flux whose intensity causes the photodiode to conduct in the forward direction and then in applying a biasing pulse to the photosensitive points in order to return the photodiode to reverse bias. Thus, a current is produced which has the effect of reducing a remanence effect in the semiconductor material.
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