JP2004537755A5 - - Google Patents

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Publication number
JP2004537755A5
JP2004537755A5 JP2003517667A JP2003517667A JP2004537755A5 JP 2004537755 A5 JP2004537755 A5 JP 2004537755A5 JP 2003517667 A JP2003517667 A JP 2003517667A JP 2003517667 A JP2003517667 A JP 2003517667A JP 2004537755 A5 JP2004537755 A5 JP 2004537755A5
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Japan
Prior art keywords
window assembly
conductive coating
electrochromic
spacing
spacing devices
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JP2003517667A
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English (en)
Japanese (ja)
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JP3944165B2 (ja
JP2004537755A (ja
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Priority claimed from US09/919,151 external-priority patent/US6471360B2/en
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Publication of JP2004537755A5 publication Critical patent/JP2004537755A5/ja
Application granted granted Critical
Publication of JP3944165B2 publication Critical patent/JP3944165B2/ja
Anticipated expiration legal-status Critical
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JP2003517667A 2001-07-31 2002-07-01 切替可能エレクトロクロミック装置 Expired - Fee Related JP3944165B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/919,151 US6471360B2 (en) 2000-08-03 2001-07-31 Switchable electrochromic devices with uniform switching and preferential area shading
PCT/US2002/020744 WO2003012541A2 (en) 2001-07-31 2002-07-01 Switchable electrochromic devices

Publications (3)

Publication Number Publication Date
JP2004537755A JP2004537755A (ja) 2004-12-16
JP2004537755A5 true JP2004537755A5 (https=) 2007-03-01
JP3944165B2 JP3944165B2 (ja) 2007-07-11

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JP2003517667A Expired - Fee Related JP3944165B2 (ja) 2001-07-31 2002-07-01 切替可能エレクトロクロミック装置

Country Status (9)

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US (2) US6471360B2 (https=)
EP (1) EP1417535B1 (https=)
JP (1) JP3944165B2 (https=)
CN (1) CN1308761C (https=)
AU (1) AU2002346012A1 (https=)
BR (1) BR0211854A (https=)
DE (1) DE60207730T2 (https=)
RU (1) RU2262729C2 (https=)
WO (1) WO2003012541A2 (https=)

Families Citing this family (146)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1159620C (zh) * 2000-11-10 2004-07-28 株式会社村上开明堂 固态电致变色器件和使用这种器件的反射镜系统和crt显示器
US6798556B2 (en) * 2003-01-31 2004-09-28 Rockwell Scientific Licensing, Llc. Locally-switched reversible electrodeposition optical modulator
EP1608719A2 (en) * 2003-03-05 2005-12-28 Electrochromix, Inc Electrochromic mirrors and other electrooptic devices
US20110209319A1 (en) * 2003-12-05 2011-09-01 Williams Scott M Photosensitive cockpit windshield
US7450294B2 (en) * 2004-03-12 2008-11-11 Boeing Co Multi-color electrochromic apparatus and methods
US20050200934A1 (en) * 2004-03-12 2005-09-15 The Boeing Company Dimming control system for an array of electrochromic devices
US8064120B2 (en) * 2004-03-12 2011-11-22 The Boeing Company Aircraft cabin services system including zone controllers for lighting control modules and dimmable windows
CA2463461C (en) * 2004-04-14 2012-06-19 Kenneth R. Fletcher Method of customizing a vehicle with decals, a vehicle decal assembly and a vehicle customized with decals in accordance with the method
US7586664B2 (en) * 2005-07-01 2009-09-08 Ppg Industries Ohio, Inc. Transparent electrode for an electrochromic switchable cell
CN100582908C (zh) * 2005-07-01 2010-01-20 Ppg工业俄亥俄公司 具有多个连接器的电致变色显示板
US7173750B2 (en) * 2005-07-01 2007-02-06 Ppg Industries Ohio, Inc. Electrochromic vision panel having a plurality of connectors
US7248392B2 (en) * 2005-07-01 2007-07-24 Ppg Industries Ohio, Inc. Vision panel having a multi-layer primer
DE102005043898A1 (de) 2005-09-14 2007-03-22 Airbus Deutschland Gmbh Fenster-Anordnung zum Einrichten größerer Flugzeugfenster
US20080007086A1 (en) * 2005-12-10 2008-01-10 Ram Pattikonda Vehicle shading system and method using an electrically controlled transmission control material
US7355161B2 (en) 2005-12-15 2008-04-08 The Boeing Company Systems and methods for controlling windows with variable light transmission
US7990603B2 (en) * 2006-06-09 2011-08-02 Gentex Corporation Variable transmission window system
US20080005728A1 (en) * 2006-06-30 2008-01-03 Robert Paul Morris Methods, systems, and computer program products for enabling cross language access to an addressable entity in an execution environment
US7599109B2 (en) * 2007-01-12 2009-10-06 Hewlett-Packard Development Company, L.P. Security device
US7893890B2 (en) * 2007-03-05 2011-02-22 The Boeing Company Electrically dimmable combiner optics for head-up display
GB0712826D0 (en) * 2007-07-03 2007-08-08 Pilkington Group Ltd RF interference reduction for functional glazings
CN103197482A (zh) * 2008-04-10 2013-07-10 塞奇电致变色公司 用于电致变色窗口的控制设备、控制系统和激活方法
US8514476B2 (en) 2008-06-25 2013-08-20 View, Inc. Multi-pane dynamic window and method for making same
US7719751B2 (en) * 2008-09-17 2010-05-18 Soladigm, Inc. Electrical contact technique for electrochromic windows
US8288678B2 (en) * 2008-12-18 2012-10-16 Ppg Industries Ohio, Inc. Device for and method of maintaining a constant distance between a cutting edge and a reference surface
FR2942665B1 (fr) * 2009-03-02 2011-11-04 Saint Gobain Dispositif electrocommandable a coloration/decoloration homogene sur toute la surface
US8105645B2 (en) * 2009-03-12 2012-01-31 Ppg Industries Ohio, Inc. Method of applying an electric conductive layer to selected portions of a mounting frame
US8889218B2 (en) 2009-03-12 2014-11-18 Ppg Industries Ohio, Inc. Foam window mount having an electric conductive layer over a light blocking layer
US8432603B2 (en) 2009-03-31 2013-04-30 View, Inc. Electrochromic devices
US9007674B2 (en) 2011-09-30 2015-04-14 View, Inc. Defect-mitigation layers in electrochromic devices
US20130271813A1 (en) 2012-04-17 2013-10-17 View, Inc. Controller for optically-switchable windows
US8213074B1 (en) 2011-03-16 2012-07-03 Soladigm, Inc. Onboard controller for multistate windows
US11592723B2 (en) 2009-12-22 2023-02-28 View, Inc. Automated commissioning of controllers in a window network
US10690540B2 (en) 2015-10-06 2020-06-23 View, Inc. Multi-sensor having a light diffusing element around a periphery of a ring of photosensors
US11314139B2 (en) 2009-12-22 2022-04-26 View, Inc. Self-contained EC IGU
US10303035B2 (en) 2009-12-22 2019-05-28 View, Inc. Self-contained EC IGU
JP5452433B2 (ja) * 2010-09-17 2014-03-26 アルプス電気株式会社 表示装置
US12496809B2 (en) 2010-11-08 2025-12-16 View Operating Corporation Electrochromic window fabrication methods
US12560846B2 (en) 2010-11-08 2026-02-24 View Operating Corporation Adhesive bus bars in electrochromic windows
US9958750B2 (en) 2010-11-08 2018-05-01 View, Inc. Electrochromic window fabrication methods
CN112731720A (zh) 2010-12-08 2021-04-30 唯景公司 绝缘玻璃装置的改良隔板
US9442339B2 (en) 2010-12-08 2016-09-13 View, Inc. Spacers and connectors for insulated glass units
US8643933B2 (en) 2011-12-14 2014-02-04 View, Inc. Connectors for smart windows
WO2012109494A2 (en) 2011-02-09 2012-08-16 Kinestral Technologies, Inc. Electrochromic multi-layer devices with spatially coordinated switching
US10429712B2 (en) 2012-04-20 2019-10-01 View, Inc. Angled bus bar
US9412290B2 (en) 2013-06-28 2016-08-09 View, Inc. Controlling transitions in optically switchable devices
US10935865B2 (en) 2011-03-16 2021-03-02 View, Inc. Driving thin film switchable optical devices
US11054792B2 (en) 2012-04-13 2021-07-06 View, Inc. Monitoring sites containing switchable optical devices and controllers
US11630367B2 (en) 2011-03-16 2023-04-18 View, Inc. Driving thin film switchable optical devices
US9645465B2 (en) 2011-03-16 2017-05-09 View, Inc. Controlling transitions in optically switchable devices
US9454055B2 (en) * 2011-03-16 2016-09-27 View, Inc. Multipurpose controller for multistate windows
US8254013B2 (en) 2011-03-16 2012-08-28 Soladigm, Inc. Controlling transitions in optically switchable devices
US11822202B2 (en) 2011-03-16 2023-11-21 View, Inc. Controlling transitions in optically switchable devices
US9778532B2 (en) 2011-03-16 2017-10-03 View, Inc. Controlling transitions in optically switchable devices
US8705162B2 (en) 2012-04-17 2014-04-22 View, Inc. Controlling transitions in optically switchable devices
US9030725B2 (en) 2012-04-17 2015-05-12 View, Inc. Driving thin film switchable optical devices
WO2013059674A1 (en) 2011-10-21 2013-04-25 View, Inc. Mitigating thermal shock in tintable windows
KR20130057165A (ko) * 2011-11-23 2013-05-31 현대자동차주식회사 터치식 디스플레이 미러
US12061402B2 (en) 2011-12-12 2024-08-13 View, Inc. Narrow pre-deposition laser deletion
US11865632B2 (en) 2011-12-12 2024-01-09 View, Inc. Thin-film devices and fabrication
EP2791733B1 (en) 2011-12-12 2017-10-25 View, Inc. Thin-film devices and fabrication
US12403676B2 (en) 2011-12-12 2025-09-02 View Operating Corporation Thin-film devices and fabrication
US10295880B2 (en) 2011-12-12 2019-05-21 View, Inc. Narrow pre-deposition laser deletion
US10802371B2 (en) 2011-12-12 2020-10-13 View, Inc. Thin-film devices and fabrication
US20130222877A1 (en) 2012-02-28 2013-08-29 Sage Electrochromics, Inc. Multi-zone electrochromic devices
US12578609B2 (en) 2012-03-13 2026-03-17 View Operating Corporation Methods of controlling multi-zone tintable windows
US9341912B2 (en) 2012-03-13 2016-05-17 View, Inc. Multi-zone EC windows
US12153320B2 (en) 2012-03-13 2024-11-26 View, Inc. Multi-zone EC windows
US11950340B2 (en) 2012-03-13 2024-04-02 View, Inc. Adjusting interior lighting based on dynamic glass tinting
US11635666B2 (en) 2012-03-13 2023-04-25 View, Inc Methods of controlling multi-zone tintable windows
WO2014078429A1 (en) * 2012-11-13 2014-05-22 View, Inc. Multi-zone ec windows
JP6138417B2 (ja) * 2012-03-14 2017-05-31 スタンレー電気株式会社 エレクトロクロミック表示素子
US9405165B2 (en) 2012-03-30 2016-08-02 Gentex Corporation Controller configured for an electro-optic device and method thereof
US11674843B2 (en) 2015-10-06 2023-06-13 View, Inc. Infrared cloud detector systems and methods
US12400651B2 (en) 2012-04-13 2025-08-26 View Operating Corporation Controlling optically-switchable devices
US10964320B2 (en) 2012-04-13 2021-03-30 View, Inc. Controlling optically-switchable devices
US9638978B2 (en) 2013-02-21 2017-05-02 View, Inc. Control method for tintable windows
RU2636811C2 (ru) 2012-04-13 2017-12-01 Вью, Инк. Приложения для управления оптически переключаемыми устройствами
US10048561B2 (en) 2013-02-21 2018-08-14 View, Inc. Control method for tintable windows
US11300848B2 (en) 2015-10-06 2022-04-12 View, Inc. Controllers for optically-switchable devices
US10503039B2 (en) 2013-06-28 2019-12-10 View, Inc. Controlling transitions in optically switchable devices
US9080763B2 (en) 2012-05-17 2015-07-14 GE Lighting Solutions, LLC Edge lit luminaires for windows
WO2014025921A1 (en) 2012-08-08 2014-02-13 Kinestral Technologies, Inc. Electrochromic multi-layer devices with current modulating structure
EP2883108B1 (en) 2012-08-08 2022-06-22 Kinestral Technologies, Inc. Electrochromic multi-layer devices with composite electrically conductive layers
US9091868B2 (en) 2012-08-08 2015-07-28 Kinestral Technologies, Inc. Electrochromic multi-layer devices with composite current modulating structure
HK1212003A1 (en) 2012-08-23 2016-06-03 View, Inc. Photonic-powered ec devices
US9158172B2 (en) * 2012-11-14 2015-10-13 Sage Electrochromics, Inc. Color matched coating for bus bars
CN105229526B (zh) 2013-01-21 2018-06-01 基内斯恰技术股份有限公司 电致变色锂镍第四族混合金属氧化物
EP2946246B1 (en) 2013-01-21 2019-04-03 Kinestral Technologies, Inc. Multi-layer electrochromic device with lithium nickel oxide based anode
US9146437B2 (en) 2013-01-31 2015-09-29 Gentex Corporation Electro-optic window assembly
US11960190B2 (en) 2013-02-21 2024-04-16 View, Inc. Control methods and systems using external 3D modeling and schedule-based computing
US11719990B2 (en) 2013-02-21 2023-08-08 View, Inc. Control method for tintable windows
US12372846B2 (en) 2013-02-21 2025-07-29 View Operating Corporation Control methods and systems using external 3D modeling and schedule-based computing
US11966142B2 (en) 2013-02-21 2024-04-23 View, Inc. Control methods and systems using outside temperature as a driver for changing window tint states
US12422725B2 (en) 2013-02-21 2025-09-23 View Operating Corporation Control methods and systems using outside temperature as a driver for changing window tint states
JP6285971B2 (ja) * 2013-03-08 2018-02-28 セイジ・エレクトロクロミクス，インコーポレイテッド 複数の独立して制御可能なゾーン及び内部バスバーを有するエレクトロクロミックデバイス
US8867116B1 (en) 2013-03-15 2014-10-21 Gentex Corporation Distate electrochromic device
US9395593B2 (en) 2013-03-15 2016-07-19 Kinestral Technologies, Inc. Electrochromic lithium nickel group 6 mixed metal oxides
WO2014205014A1 (en) 2013-06-18 2014-12-24 View, Inc. Electrochromic devices on non-rectangular shapes
US9885935B2 (en) 2013-06-28 2018-02-06 View, Inc. Controlling transitions in optically switchable devices
US12061404B2 (en) 2013-06-28 2024-08-13 View, Inc. Controlling transitions in optically switchable devices
US12353111B2 (en) 2013-06-28 2025-07-08 View Operating Corporation Controlling transitions in optically switchable devices
US9403590B2 (en) 2013-07-26 2016-08-02 Gentex Corporation Electro-optic window assembly EMI shield
JP6190216B2 (ja) * 2013-08-30 2017-08-30 三菱航空機株式会社 航空機の窓、および開口部の閉塞部材
WO2015077313A1 (en) 2013-11-19 2015-05-28 Gentex Corporation Reducing condensation in dimmable window systems
US9586669B2 (en) 2013-11-25 2017-03-07 Gentex Corporation Aerospace protective dust cover
US10884311B2 (en) 2013-12-24 2021-01-05 View, Inc. Obscuring bus bars in electrochromic glass structures
EP3087238B1 (en) 2013-12-24 2021-03-17 View, Inc. Obscuring bus bars in electrochromic glass structures
US11906868B2 (en) 2013-12-24 2024-02-20 View, Inc. Obscuring bus bars in electrochromic glass structures
US10221612B2 (en) 2014-02-04 2019-03-05 View, Inc. Infill electrochromic windows
US10859983B2 (en) 2014-03-05 2020-12-08 View, Inc. Monitoring sites containing switchable optical devices and controllers
EP3152111B1 (en) 2014-06-05 2020-07-29 Gentex Corporation Dust cover assembly with edge light
US10670936B2 (en) 2014-07-23 2020-06-02 Kinestral Technologies, Inc. Wet-coating of thin film lithium nickel oxides for electrochromic applications
US10061177B2 (en) 2014-07-23 2018-08-28 Kinestral Technologies, Inc. Process for preparing multi-layer electrochromic stacks
WO2016073848A1 (en) 2014-11-07 2016-05-12 Gentex Corporation Full display mirror actuator
US12235560B2 (en) 2014-11-25 2025-02-25 View, Inc. Faster switching electrochromic devices
CN107533267A (zh) 2015-03-20 2018-01-02 唯景公司 更快速地切换低缺陷电致变色窗
US10167073B2 (en) 2015-06-09 2019-01-01 Gentex Corporation Multi-piece bezel for electro-optic window assembly
US10589834B2 (en) 2015-06-09 2020-03-17 Gentex Corporation Retention of an electro-optic window assembly
TWI823168B (zh) 2015-07-07 2023-11-21 美商唯景公司 用於可著色窗戶之控制方法
US11255722B2 (en) 2015-10-06 2022-02-22 View, Inc. Infrared cloud detector systems and methods
CA3003639A1 (en) 2015-10-29 2017-05-04 View, Inc. Controllers for optically-switchable devices
JP6694522B2 (ja) 2016-04-19 2020-05-13 セイジ・エレクトロクロミクス，インコーポレイテッド 透明導電性酸化物層及びバスバーを含むエレクトロクロミックデバイス、ならびにその形成プロセス
JP6229755B2 (ja) * 2016-04-21 2017-11-15 大日本印刷株式会社 調光フィルム及び調光フィルムの駆動方法
EP3449300B1 (en) 2016-04-29 2022-09-07 View, Inc. Calibration of electrical parameters in optically switchable windows
US11319628B2 (en) 2016-09-23 2022-05-03 3M Innovative Properties Company Articles with resistance gradients for uniform switching
EP3485327B1 (en) 2016-10-10 2021-11-24 Gentex Corporation Polarized window assembly
CN110088676A (zh) * 2016-12-22 2019-08-02 Sage电致变色显示有限公司 包括构造为保持连续渐变透射状态的电致变色器件的装置
US11454854B2 (en) 2017-04-26 2022-09-27 View, Inc. Displays for tintable windows
EP3682295B1 (en) 2017-09-12 2023-09-06 Sage Electrochromics, Inc. Non-light-emitting variable transmission device and a method of forming the same
US11409179B2 (en) 2018-08-03 2022-08-09 Sage Electrochromics, Inc. Apparatus to maintain a continuously graded transmission state
WO2020084448A1 (en) 2018-10-21 2020-04-30 Gentex Corporation Electro-optic window assembly
TWI734299B (zh) 2018-12-31 2021-07-21 美商塞奇電致變色公司 維持連續分級透射狀態之裝置
US11600732B2 (en) 2019-01-07 2023-03-07 Gentex Corporation Variable transmittance window assembly
US11631493B2 (en) 2020-05-27 2023-04-18 View Operating Corporation Systems and methods for managing building wellness
CN114041084B (zh) * 2019-07-25 2024-06-25 金泰克斯公司 分段可变受控电光元件
US11951814B2 (en) * 2019-09-26 2024-04-09 Boe Technology Group Co., Ltd. Intelligent glass and intelligent window system
EP4073580A1 (en) 2019-12-10 2022-10-19 View, Inc. Laser methods for processing electrochromic glass
CN116224671A (zh) * 2019-12-17 2023-06-06 深圳市光羿科技有限公司 电致变色器件的控制电路
TW202206925A (zh) 2020-03-26 2022-02-16 美商視野公司 多用戶端網路中之存取及傳訊
CN116601558A (zh) 2020-12-15 2023-08-15 Sage电致变色显示有限公司 具有分级透射状态的igu的汇流条设计
WO2022267975A1 (zh) * 2021-06-25 2022-12-29 深圳市光羿科技有限公司 电致变色器件及其控制方法和装置
CN115903320A (zh) * 2021-08-02 2023-04-04 光羿智能科技(苏州)有限公司 一种导电基底结构及电致变色器件
CN115701555A (zh) * 2021-08-02 2023-02-10 光羿智能科技(苏州)有限公司 一种电致变色器件及电致变色装置
CN115933262A (zh) * 2021-08-02 2023-04-07 光羿智能科技(苏州)有限公司 一种导电结构及电致变色器件
EP4383000A4 (en) * 2021-08-02 2025-08-06 Guangyi Intelligent Tech Suzhou Co Ltd CONDUCTIVE BASE STRUCTURE, ELECTROCHROMIC DEVICE AND ELECTROCHROMIC APPARATUS
US11565811B1 (en) * 2022-01-28 2023-01-31 Blended Wing Aircraft, Inc. Blended wing body aircraft with transparent panels

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233339A (en) * 1978-10-23 1980-11-11 Timex Corporation Method for making electrochromic films having improved etch resistance
US4416517A (en) * 1980-12-22 1983-11-22 Corning Glass Works Electrochromic devices including a mica layer electrolyte
US5355245A (en) * 1988-02-12 1994-10-11 Donnelly Corporation Ultraviolet protected electrochemichromic rearview mirror
US5321544A (en) * 1991-09-04 1994-06-14 Sun Active Glass Electrochromics, Inc. Electrochromic structures and methods
US6246507B1 (en) * 1992-04-02 2001-06-12 Gentex Corporation Non-planar interior electrochromic rearview mirror for a vehicle
JP3194312B2 (ja) * 1993-03-19 2001-07-30 ソニー株式会社 絞り装置
US5668663A (en) * 1994-05-05 1997-09-16 Donnelly Corporation Electrochromic mirrors and devices
JPH10239716A (ja) * 1996-12-24 1998-09-11 Nippon Oil Co Ltd エレクトロクロミック素子用対向電極及び素子
US6064509A (en) * 1997-08-22 2000-05-16 Gentex Corporation Clip for use with transparent conductive electrodes in electrochromic devices
US6094292A (en) * 1997-10-15 2000-07-25 Trustees Of Tufts College Electrochromic window with high reflectivity modulation
US6010220A (en) * 1998-03-23 2000-01-04 Ppg Industries Ohio, Inc. Tab and bus bar application method
US6062920A (en) * 1998-08-26 2000-05-16 Gentex Corporation Custom terminal connector for use in electrochromic devices
US6239898B1 (en) * 1998-11-30 2001-05-29 Gentex Corporation Electrochromic structures
US6195192B1 (en) * 1999-08-02 2001-02-27 Gentex Corporation Electrochromic materials with enhanced ultraviolet stability
US6373618B1 (en) * 2000-05-04 2002-04-16 Schott-Donnelly, Llc Chromogenic glazing for automobiles and display filters
US6407847B1 (en) * 2000-07-25 2002-06-18 Gentex Corporation Electrochromic medium having a color stability

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