JP6690671B2 - 電気光学装置および電子機器 - Google Patents
電気光学装置および電子機器 Download PDFInfo
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- 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
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78606—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device
- H01L29/78633—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device with a light shield
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G02F1/136213—Storage capacitors associated with the pixel electrode
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
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- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
- G02F1/13685—Top gates
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Description
1−1.第1実施形態
本発明の電気光学装置の一例として、TFT(Thin Film Transistor)をスイッチング素子として備えるアクティブマトリックス方式の液晶装置を例に説明する。
図1は、第1実施形態に係る電気光学装置の一例である液晶装置の平面図である。図2は、第1実施形態に係る液晶装置の断面図であって、図1中のA−A線断面図である。なお、以下では、説明の便宜上、図1および図2のそれぞれに示す互いに直交するx軸、y軸、およびz軸を適宜用いて説明する。
図3は、第1実施形態における素子基板の電気的な構成を示す等価回路図である。図3に示すように、素子基板2には、n本の走査線261とm本の信号線262とn本の容量線263とが形成される。ただし、nおよびmは2以上の整数である。n本の走査線261とm本の信号線262との各交差に対応してTFT25が配置される。
次に、図2に示す素子基板2の表示領域A10の部分の詳細な構成について説明する。図4は、第1実施形態における素子基板の部分平面図である。図5は、第1実施形態における素子基板の部分断面図であって、図4中のB−B線断面図である。図6は、第1実施形態における素子基板が有する遮光体を示す断面図である。図7は、第1実施形態における素子基板が有する遮光体を示す平面図である。図8は、第1実施形態における素子基板が有するTFTを示す平面図である。
次に、図2に示す素子基板2の周辺領域A20の部分の詳細な構成について説明する。図9は、第1実施形態における素子基板が有する回路用遮光体を示す断面図である。
次に、素子基板2の製造方法について説明する。図10は、第1実施形態における素子基板の製造方法を示すフローチャートである。
次に、本発明の第2実施形態について説明する。図15は、第2実施形態における素子基板が有する遮光体を示す平面図である。
次に、本発明の第3実施形態について説明する。図16は、第3実施形態における素子基板が有する遮光体を示す断面図である。
次に、本発明の第4実施形態について説明する。図17は、第4実施形態における素子基板が有する遮光体を示す断面図である。
次に、本発明の第5実施形態について説明する。図18は、第5実施形態における素子基板が有する遮光体を示す断面図である。図19は、第5実施形態における素子基板が有する遮光体を示す平面図である。
電気光学装置1は、各種電子機器に用いることができる。
Claims (7)
- 透光性の基材と、
透光性の画素電極と、
前記画素電極に電気的に接続されるスイッチング素子と、
前記基材に接触し、前記基材の厚さ方向からの平面視において前記スイッチング素子と重なる遮光体と、
前記スイッチング素子を駆動する回路と、
前記基材に接触し、前記基材の厚さ方向からの平面視で、前記回路と重なる回路用遮光体と、を備え、
前記基材には、前記スイッチング素子側に開口し、前記遮光体が配置される第1凹部が設けられ、
前記基材には、前記回路側に開口し、前記回路用遮光体が配置される第2凹部が設けられ、
前記遮光体は、第1部分と、厚さが前記第1部分の厚さよりも厚い第2部分と、を有し、前記基材と共に前記スイッチング素子側に平坦面を構成し、
前記第1部分は前記平坦面に沿って拡がり、
前記回路用遮光体の厚さは、前記第2部分の厚さよりも厚い、ことを特徴とする電気光学装置。 - 前記遮光体は、タングステンを含む金属膜と、前記金属膜と前記基材との間に配置され、タングステンナイトライドまたはチタンナイトライドを含む金属窒化膜とを有する請求項1に記載の電気光学装置。
- 前記遮光体は、前記金属窒化膜と前記基材との間に配置され、タングステンシリサイドを含むタングステンシリサイド膜を含む請求項2に記載の電気光学装置。
- 前記スイッチング素子は、ゲート電極、ソース電極、およびドレイン電極を有し、
前記第2部分は、前記基材の厚さ方向からの平面視で、前記ソース電極と前記ドレイン電極との間に配置される請求項1又は2に記載の電気光学装置。 - 前記スイッチング素子は、ゲート電極を有し、
前記ゲート電極は前記遮光体と電気的に接続される請求項1又は2に記載の電気光学装置。 - 平面視で前記ゲート電極と重なるように配置された走査線をさらに備え、
前記遮光体と前記走査線と前記ゲート電極は、電気的に接続される請求項5に記載の電気光学装置。 - 請求項1ないし6のいずれか1項に記載の電気光学装置を備えることを特徴とする電子機器。
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