JP2007104113A - 感度可変型撮像素子及びこれを搭載した撮像装置 - Google Patents
感度可変型撮像素子及びこれを搭載した撮像装置 Download PDFInfo
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- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/12—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only
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- H01L27/14667—Colour imagers
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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Abstract
【解決手段】基板30と、基板30の上層に積層され画素電極層41(46,50)と対向電極層44(48,52)との間に挟まれた感光層43(47,51)と、基板30上に形成され感光層43(47,51)に光が入射することで発生した光電荷に応じた信号を読み出す信号読出手段(34,35)と、画素電極層と対向電極層との間に感度可変用電圧を印加する電圧印加手段とを備え、画素電極層と対向電極層との間に印加する電圧を調整することで、各感光層での感度制御を行う。
【選択図】図3
Description
10 オートホワイトバランス(AWB)用積算回路
14 印加電圧調整回路
30 半導体基板
31,32,33 信号電荷蓄積部(ダイオード部)
41 赤色(R)用画素電極層
42 縦配線
43 赤色(R)用の感光層
44 赤色(R)用の対向電極層
46 緑色(G)用の画素電極層
47 緑色(G)用の感光層
48 緑色(G)用の対向電極層
50 青色(B)用の画素電極層
51 青色(B)用の感光層
52 青色(B)用の対向電極層
Claims (7)
- 基板と、該基板の上層に積層され画素電極層と対向電極層との間に挟まれた感光層と、前記基板上に形成され前記感光層に光が入射することで発生した光電荷に応じた信号を読み出す信号読出手段と、前記画素電極層と前記対向電極層との間に感度可変用電圧を印加する電圧印加手段とを備えることを特徴とする感度可変型撮像素子。
- 前記感光層及び該感光層を挟む前記画素電極層と前記対向電極層の組が複数組積層して設けられ、該各組の前記感光層が夫々異なる波長域に受光感度のピークを有することを特徴とする請求項1に記載の感度可変型撮像素子。
- 前記感光層及び該感光層を挟む前記画素電極層と前記対向電極層の組が3組積層して設けられ、該3組のうちの1つが赤色光に受光感度を有し、残り2組のうちの1つが緑色光に受光感度を有し、残り1組が青色光に受光感度を有することを特徴とする請求項2に記載の感度可変型撮像素子。
- 前記基板は半導体基板であり、前記信号読出手段は、所定位置の画素の前記光電荷を転送するための電荷転送部を有する素子、あるいは、所定位置の画素における前記光電荷に応じた信号を選択的に読み出すための読み出し機構を備える素子を含むことを特徴とする請求項1乃至請求項3のいずれかに記載の感度可変型撮像素子。
- 前記基板が可撓性を有することを特徴とする請求項1乃至請求項4のいずれかに記載の感度可変型撮像素子。
- 請求項1乃至請求項5のいずれかに記載の感度可変型撮像素子と、前記電圧印加手段が前記画素電極層と前記対向電極層との間に印加する電圧を制御することで前記感度可変型撮像素子から出力される画像信号を調整する印加電圧調整手段とを備えることを特徴とする撮像装置。
- 請求項3記載の感度可変型撮像素子と、前記電圧印加手段が前記3組の各々の前記画素電極層と前記対向電極層との間に印加する電圧を制御することで前記感度可変型撮像素子から出力される赤色,緑色,青色の画像信号を制御しホワイトバランス調整を行う印加電圧調整手段とを備えることを特徴とする撮像装置。
Priority Applications (2)
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JP2005288861A JP4511441B2 (ja) | 2005-09-30 | 2005-09-30 | 感度可変型撮像素子及びこれを搭載した撮像装置 |
US11/527,393 US7663682B2 (en) | 2005-09-30 | 2006-09-27 | Variable sensitivity imaging device including a voltage applying section, and imaging apparatus including the same |
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JP2005288861A JP4511441B2 (ja) | 2005-09-30 | 2005-09-30 | 感度可変型撮像素子及びこれを搭載した撮像装置 |
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JP2007104113A true JP2007104113A (ja) | 2007-04-19 |
JP4511441B2 JP4511441B2 (ja) | 2010-07-28 |
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JP2009065166A (ja) * | 2007-09-07 | 2009-03-26 | Dongbu Hitek Co Ltd | イメージセンサ及びその製造方法 |
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US7663682B2 (en) | 2010-02-16 |
US20070076093A1 (en) | 2007-04-05 |
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