JP2010153449A - 光源一体型光電変換装置 - Google Patents
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Abstract
【解決手段】本発明の光源一体型光電変換装置は、発光層183を含んで構成され、発光層183の一方の面を通して所定の射出方向に光を射出する発光素子と、発光層183と重ならない領域に形成された光電変換層15を含んで構成され、光電変換層15の一方の面を通った光を電気信号に変換する複数の光電変換素子と、を備える。発光素子が複数の光電変換素子と同一の基板10上に形成されているとともに、光電変換層15の一方の面が発光層183の他方の面よりも光L1の射出方向と反対側に配置されている。
【選択図】図2
Description
このようにすれば、発光層から隔壁に向けて発せられた光が、隔壁を通らなくなる。したがって、発光層から隔壁に向けて発せられた光が光電変換層に入射することが防止され、対象物に対応した光を精度よく検出することが可能になる。
有機エレクトロルミネッセンス素子は、液相法等の低温プロセスを用いて形成することが可能である。本発明では発光素子と光電変換素子とが同一基板に形成されているが、前記の構成によれば、発光素子の形成時の熱による光電変換素子への悪影響が格段に低減される。
図1は、本発明に係る第1実施形態のイメージセンサー(光源一体型光電変換装置)1の概略構成を示す模式図である。図1に示すように、イメージセンサー1は、対象物9と対向する対向面1Aを有している。対象物9は、例えば文字や画像が印刷された原稿等である。本実施形態の対向面1Aの平面形状が略長方形になっている。対向面1Aは、複数の発光領域A1と、多数の光検出領域A2とを含んでいる。
図3に示すように読出回路は、互いに平行して延在する複数の走査線191と、走査線191に平行して延在する複数の容量線192とを含んでいる。読出回路は、走査線191と直交して延在する複数のデータ線193と、データ線193に平行して延在する複数の定電位線194とを含んでいる。走査線191とデータ線193とに囲まれる領域が光検出領域A2に対応している。なお、発光領域A1の延在方向は、走査線191の延在方向と略一致しており、発光領域A1は複数のデータ線193をまたいで配置されている。
次に、本発明に係る第2実施形態のイメージセンサー(光源一体型光電変換装置)を説明する。第2実施形態が第1実施形態と異なる点は、発光素子がボトムエミッション型である点である。
Claims (6)
- 発光層を含んで構成され、前記発光層の一方の面を通して所定の射出方向に光を射出する発光素子と、
前記発光層と重ならない領域に形成された光電変換層を含んで構成され、前記光電変換層の一方の面を通った光を電気信号に変換する複数の光電変換素子と、を備え、
前記発光素子が前記複数の光電変換素子と同一の基板上に形成されているとともに、前記光電変換層の一方の面が前記発光層の他方の面よりも前記射出方向と反対側に配置されていることを特徴とする光源一体型光電変換装置。 - 前記発光層の他方の面と前記光電変換層の一方の面との間に、前記発光層の他方の面の全体を覆って光吸収材料と光反射材料との少なくとも一方を含んだ形成材料からなる遮光層が設けられていることを特徴とする請求項1に記載の光源一体型光電変換装置。
- 前記発光層が、光吸収材料と光反射材料との少なくとも一方を含んだ形成材料からなる隔壁の内側に形成されていることを特徴とする請求項1又は2に記載の光源一体型光電変換装置。
- 前記発光素子の駆動信号をスイッチングする駆動スイッチング素子が、前記発光層の一方の面よりも、前記射出方向と反対側に配置されていることを特徴とする請求項1〜3のいずれか一項に記載の光源一体型光電変換装置。
- 前記複数の光電変換素子の各々から出力される電気信号を読出す読出回路を備え、
前記読出回路が前記光電変換層の一方の面よりも、前記射出方向と反対側に配置されていることを特徴とする請求項1〜4のいずれか一項に記載の光源一体型光電変換装置。 - 前記発光素子が、有機エレクトロルミネッセンス素子であることを特徴とする請求項1〜5のいずれか一項に記載の光源一体型光電変換装置。
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JP2008327472A JP2010153449A (ja) | 2008-12-24 | 2008-12-24 | 光源一体型光電変換装置 |
US12/634,155 US8399821B2 (en) | 2008-12-24 | 2009-12-09 | Light source integrated photoelectric conversion apparatus |
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JP2013073965A (ja) * | 2011-09-26 | 2013-04-22 | Toshiba Corp | 光電変換装置及びその製造方法 |
KR101421794B1 (ko) * | 2011-09-26 | 2014-07-22 | 가부시끼가이샤 도시바 | 광전 변환 장치 및 그 제조 방법 |
US9155498B2 (en) | 2011-09-26 | 2015-10-13 | Kabushiki Kaisha Toshiba | Living body sensor for obtaining information of a living body |
US9167994B2 (en) | 2011-09-26 | 2015-10-27 | Kabushiki Kaisha Toshiba | Light-source sensor integrated photoelectric conversion device |
JP2016201571A (ja) * | 2011-10-28 | 2016-12-01 | 株式会社半導体エネルギー研究所 | 撮像装置 |
US9728589B2 (en) | 2011-10-28 | 2017-08-08 | Semiconductor Energy Laboratory Co., Ltd. | Imaging device comprising light-emitting element and light-receiving element |
WO2020049398A1 (ja) * | 2018-09-07 | 2020-03-12 | 株式会社半導体エネルギー研究所 | 撮像装置および電子機器 |
JPWO2020049398A1 (ja) * | 2018-09-07 | 2021-09-24 | 株式会社半導体エネルギー研究所 | 撮像装置および電子機器 |
JP7350753B2 (ja) | 2018-09-07 | 2023-09-26 | 株式会社半導体エネルギー研究所 | 撮像装置および電子機器 |
JP2021034613A (ja) * | 2019-08-27 | 2021-03-01 | 株式会社ジャパンディスプレイ | 検出装置 |
WO2021039116A1 (ja) * | 2019-08-27 | 2021-03-04 | 株式会社ジャパンディスプレイ | 検出装置 |
JP7377025B2 (ja) | 2019-08-27 | 2023-11-09 | 株式会社ジャパンディスプレイ | 検出装置 |
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