发明名称 |
Image pickup device with high contrast detection capability |
摘要 |
Each pixel includes first and second photodiodes that are receiving-light detecting elements. The first photodiode applies a first potential according to an amount of light entering into the corresponding pixel. An internal node is electrically coupled with an internal node in another pixel via a resistance component. Hence, the second photodiode applies a second potential according to an average amount of light on the periphery to the corresponding internal node. A pixel signal generating circuit reads out a multiplied result of the first and second potentials as a pixel signal. The pixel signal has an intensity corresponding to the amount of light in the pixel in accordance with a receiving-light sensitivity characteristic (signal amplification factor) that is automatically adjusted based on an average amount of light in a region on the periphery of the pixel.
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申请公布号 |
US7098951(B2) |
申请公布日期 |
2006.08.29 |
申请号 |
US20020237736 |
申请日期 |
2002.09.10 |
申请人 |
EXPLOITATION OF NEXT GENERATION CO., LTD. |
发明人 |
ARIMA YUTAKA |
分类号 |
H01L27/146;H04N3/14;H04N5/335;H04N5/355;H04N5/369;H04N5/374;H04N5/3745 |
主分类号 |
H01L27/146 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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