JP5912467B2 - 光電変換回路及び表示装置 - Google Patents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices 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; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0232—Optical elements or arrangements associated with the device
- H01L31/02327—Optical elements or arrangements associated with the device the optical elements being integrated or being directly associated to the device, e.g. back reflectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66742—Thin film unipolar transistors
- H01L29/6675—Amorphous silicon or polysilicon transistors
- H01L29/66757—Lateral single gate single channel transistors with non-inverted structure, i.e. the channel layer is formed before the gate
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices 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; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/08—Semiconductor devices 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; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors
- H01L31/10—Semiconductor devices 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; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors characterised by potential barriers, e.g. phototransistors
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- H01L31/00—Semiconductor devices 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; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Description
本実施の形態では、本発明の一態様である光電変換素子とその作製方法について図面を参照して説明する。
本実施の形態では、本発明の一態様である光電変換回路について説明する。本実施の形態の光電変換回路は、実施の形態1の光電変換素子を用いたものである。なお、本実施の形態では、表示装置の一例として液晶表示装置を用いたが、これに限定されない。
102 第1の導電層
104 第1の絶縁層
106 結晶性半導体層
108 非晶質半導体を含む層
109 非晶質半導体を含む層
110 不純物半導体層
112 第2の導電層
114 第2の絶縁層
116 第3の導電層
120 受光部
124 配線
128 第1の開口部
130 第2の開口部
140 結晶性半導体膜
142 非晶質半導体を含む膜
144 不純物半導体膜
146 薄膜積層体
148 導電膜
150 透光性導電膜
152 画素開口部
200 素子基板
202 表示部
204 画素回路
206 光電変換回路
208 ゲート線
210 ソース線
212 ゲート線駆動回路
213 ソース線駆動回路
214 リセット線
216 セレクト線
218 読み出し線
220 光電変換素子用リセット回路
222 光電変換素子用走査回路
224 光電変換素子用読み出し回路
225 点線領域
226 画素トランジスタ
228 液晶素子
230 共通電位線
232 保持容量素子
234 光電変換素子
236 薄膜トランジスタ
238 薄膜トランジスタ
240 保持容量素子
242 共通電位線
244 電源電位線
Claims (3)
- 光電変換素子と、保持容量素子と、第1のトランジスタと、第2のトランジスタとを有し、
前記光電変換素子は、ゲートがリセット線に接続され、ソース及びドレインの一方が前記リセット線に接続され、
前記保持容量素子は、第1の電極が前記光電変換素子のソース及びドレインの他方に接続され、第2の電極が共通電位線に接続され、
前記第1のトランジスタは、ゲートが前記光電変換素子のソース及びドレインの他方に接続され、ソース及びドレインの一方が電源電位線に接続され、
前記第2のトランジスタは、ゲートがセレクト線に接続され、ソース及びドレインの一方が前記第1のトランジスタのソース及びドレインの他方に接続され、ソース及びドレインの他方が読み出し線に接続され、
前記光電変換素子は、
第1のゲート電極と、
前記第1のゲート電極を覆って設けられた第1のゲート絶縁層と、
前記第1のゲート絶縁層上に設けられた結晶性半導体層と、
前記結晶性半導体層上の一部に接して離間して設けられた非晶質半導体層と、
前記非晶質半導体層上に設けられた不純物半導体層と、
少なくとも前記不純物半導体層に接して設けられたソース電極及びドレイン電極と、
少なくとも前記非晶質半導体層が設けられていない部分の前記結晶性半導体層を覆って設けられた第2のゲート絶縁層と、
前記第2のゲート絶縁層上に設けられた第2のゲート電極と、
を有し、
前記結晶性半導体層の前記非晶質半導体層が設けられていない部分に受光部が設けられ、
前記第1のゲート電極は遮光性材料により前記結晶性半導体層及び前記非晶質半導体層のすべてと重畳して設けられ、
前記第2のゲート電極は透光性材料により前記受光部と重畳して設けられ、
前記第1のゲート電極は、前記ソース電極またはドレイン電極に電気的に接続されていることを特徴とする光電変換回路。 - 請求項1において、
前記リセット線にハイの電位が入力されることで確定する前記第1のトランジスタのソース又はドレインの他方の電位を、前記読み出し線を介して読み出すことにより、前記光電変換素子への光照射の有無を判定することを特徴とする光電変換回路。 - 請求項1又は請求項2に記載の光電変換回路と、
画素とを有し、
前記画素は、画素トランジスタと液晶素子とを有し、
前記画素トランジスタのソース又はドレインの一方は、ソース線に接続され、
前記画素トランジスタのソース又はドレインの他方は、前記液晶素子に接続され、
前記ソース線と前記電源電位線とは異なることを特徴とする表示装置。
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JP2012138572A JP2012138572A (ja) | 2012-07-19 |
JP5912467B2 true JP5912467B2 (ja) | 2016-04-27 |
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US (2) | US8519397B2 (ja) |
JP (1) | JP5912467B2 (ja) |
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JP5912467B2 (ja) * | 2010-12-10 | 2016-04-27 | 株式会社半導体エネルギー研究所 | 光電変換回路及び表示装置 |
US11676547B2 (en) * | 2017-07-07 | 2023-06-13 | Semiconductor Energy Laboratory Co., Ltd. | Display system and operation method of the display system |
US11444025B2 (en) * | 2020-06-18 | 2022-09-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | Transistor and fabrication method thereof |
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JPH04359569A (ja) * | 1991-06-06 | 1992-12-11 | Canon Inc | 薄膜半導体装置 |
JPH05235398A (ja) * | 1992-02-24 | 1993-09-10 | Hitachi Ltd | 薄膜光センサ |
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US8519397B2 (en) | 2013-08-27 |
US20120146026A1 (en) | 2012-06-14 |
US20130313555A1 (en) | 2013-11-28 |
JP2012138572A (ja) | 2012-07-19 |
US8860029B2 (en) | 2014-10-14 |
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