Liquid Cell Patents (Class 359/272)
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Patent number: 12081855Abstract: There is provided a light modulating element including a plurality of compounds whose light absorption characteristics change with external simulation. The plurality of compounds are compounds having different absorption wavelengths. The light modulating element has a variable transmittance VT(?) obtained by combining light absorption characteristics of the plurality of compounds. NWDMax<NWDMaxFP is satisfied.Type: GrantFiled: June 30, 2022Date of Patent: September 3, 2024Assignee: Canon Kabushiki KaishaInventor: Wataru Kubo
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Patent number: 11859130Abstract: This disclosure relates generally to solution processed low temperature metal oxide, metal bronze or polyoxometalate materials as charge storage material used in electrochromic devices, charge storage material and electrochromic devices comprising the materials and methods of making and using the same.Type: GrantFiled: September 7, 2021Date of Patent: January 2, 2024Assignee: FURCIFER INC.Inventor: Yan Zhou
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Patent number: 10673009Abstract: The present invention provides a planar electroluminescence (EL) device comprising a substrate layer, an electrode layer, a light emitting layer, and a modulating layer, wherein the electrode layer comprises a plurality of electrodes arranged on a same level over the substrate layer, and there is no contact between adjacent electrodes. In one embodiment, the device further comprises a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL) and an electrode transport layer (ETL). In one embodiment, the light emitting layer comprises organic light emitting polymers or organic light emitting molecules. The device of the present invention would emit light when liquid, polar component, or conductive solution is written directly on the light emitting layer. In one embodiment, the device can emit light for prolonged period when the light emitting layer is coated or deposited with conductive material.Type: GrantFiled: August 21, 2017Date of Patent: June 2, 2020Assignee: Peking University Shenzhen Graduate SchoolInventors: Hong Meng, Dan Hu, Xiuru Xu, Lijia Yan, Wei Huang
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Patent number: 10179768Abstract: The present invention relates to a group of novel electrochromic materials. More specifically, it relates to electrochromic materials having two-core viologens and the use of these two-core viologens as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.Type: GrantFiled: September 16, 2014Date of Patent: January 15, 2019Assignee: ESSILOR INTERNATIONALInventors: Stuart Aiken, Daniel Luke Crossley, Christopher David Gabbutt, Bernard Mark Heron, Claudine Biver, Samuel Archambeau, Fabien Berit-Debat
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Patent number: 9841652Abstract: The present invention relates to an electrochromic composition comprising at least one reducing compound, at least one oxidizing compound which is selected from specific viologen derivatives, and at least one dye. Said composition can be used as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.Type: GrantFiled: September 16, 2014Date of Patent: December 12, 2017Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Claudine Biver, Samuel Archambeau, Fabien Berit-Debat
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Patent number: 9823534Abstract: The present invention relates to a group of novel electrochromic materials. More specifically, it relates to electrochromic materials based on either single or two-core viologen systems and the use of these viologen systems as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.Type: GrantFiled: September 16, 2014Date of Patent: November 21, 2017Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Stuart Aiken, Christopher David Gabbutt, Bernard Mark Heron, Claudine Biver, Samuel Archambeau, Fabien Berit-Debat, Sandrine Duluard
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Patent number: 9785030Abstract: The present invention relates to an electrochromic composition comprising at least one reducing compound and at least two oxidizing compounds, said at least two oxidizing compounds having similar oxydo-reduction potentials. More specifically, said at least two oxidizing compounds are selected from viologen derivatives. Said composition can be used as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.Type: GrantFiled: September 16, 2014Date of Patent: October 10, 2017Assignee: Essilor International (Compagnie Generale d'Optique)Inventors: Claudine Biver, Samuel Archambeau, Fabien Berit-Debat
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Patent number: 9778531Abstract: An electrochromic device (1) comprises an electrochromic layered structure (10) having a first substrate sheet (21), a second substrate sheet (22), a first (23) and a second (24) electron conducting layer at least partially covering a respective substrate sheet, an electrochromic layer (25) and a counter electrode layer (26) at least partially covering a respective electron conducting layer and an electrolyte layer (30) laminated between and at least partially covering the first electrochromic layer and the counter electrode layer. The electrochromic layered structure also has an area (51, 52) in which the electrochromic layer or the counter electrode layer is not covered by the electrolyte layer. An electrode (41, 42) is soldered to the respective electron conducting layer through the electrochromic layer or the counter electrode layer.Type: GrantFiled: July 23, 2014Date of Patent: October 3, 2017Assignee: CHROMOGENICS ABInventors: Greger Gregard, Richard Karmhag
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Patent number: 9772538Abstract: A transparent display device, comprising: a display panel; a system light source provided over a non-display surface of the display panel; an article placement area located at a side of the system light source that is away from the display panel; an encapsulated cell provided between the system light source and the article placement area, wherein the encapsulated cell is provided with an electrochromic material therein; and a control member that is capable of controlling the electrochromic material in the encapsulated cell to regionally switch to a transparent state or a colored state. The present invention can realize a regionally transparent display and expand the application range of the transparent display device.Type: GrantFiled: December 16, 2013Date of Patent: September 26, 2017Assignee: BOE Technology Group Co., Ltd.Inventor: Yue Shi
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Patent number: 9196424Abstract: Disclosed is a double-center bipyridyl cationic ion liquid prepared by reacting bipyridyl with haloalkane for synthesis of dialkyl bipyridyl halide, and converting the halogen ion in the dialkyl bipyridyl halide to the target anion via an ion-exchange reaction, to give the final target ionic liquid. Also disclosed are an organic electrolyte containing the double-center bipyridyl cationic ion liquid and a preparation method therefor.Type: GrantFiled: August 30, 2011Date of Patent: November 24, 2015Assignee: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.Inventors: Mingjie Zhou, Daxi Liu, Yaobing Wang
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Publication number: 20150085338Abstract: An emissive display system includes an electro-optic device having a first substantially transparent substrate including a first electrically conductive material associated therewith. A second substantially transparent substrate is spaced apart from the first substrate to define a cavity and includes a second electrically conductive material associated therewith. One or more spacing members are positioned within the cavity and include one or more polymer matrix discs configured to maintain a cell spacing between the first and second substrates. An electro-optic medium is disposed within the cavity and is variably transmissive such that the electro-optic device is operable between substantially clear and darkened states, and includes at least one solvent, at least one anodic material, and at least one cathodic material. A substantially transparent light emitting display is operably coupled to the electro-optic device, which is in the darkened state when the light emitting display is emitting light.Type: ApplicationFiled: September 24, 2014Publication date: March 26, 2015Inventors: Kevin L. Ash, Sue F. Franz, David A. Theiste, William L. Tonar, Leroy J. Kloeppner
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Publication number: 20150085339Abstract: An emissive display system includes an electro-optic device having a first substantially transparent substrate. A second substantially transparent substrate is spaced apart from the first substrate to define a cavity therebetween. An electro-optic medium is disposed within the cavity and is variably transmissive such that the electro-optic device is operable between substantially clear and darkened states, and includes at least one solvent, at least one anodic material, and at least one cathodic material. One or more spacing members are deposited on one of the first substrate and the second substrate and are configured to maintain a cell spacing between the first and second substrates. The one or more spacing members at least substantially dissolve upon association with the electro-optic medium. A substantially transparent light emitting display is operably coupled to the electro-optic device, which is in the darkened state when the light emitting display is emitting light.Type: ApplicationFiled: September 24, 2014Publication date: March 26, 2015Inventors: David A. Theiste, Sue F. Franz, Kevin L. Ash, Leroy J. Kloeppner, William L. Tonar
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Patent number: 8830554Abstract: The present subject matter can include a two-dimensional electrochemical writing assembly and uses thereof. The writing assembly can enable for time-dependently displaying of a physical parameter, such as a time-dependent display or recording of the temperature. The writing assembly comprises two different types of electrochemical processors, of which one type is used for controlling the time-dependent switching of the second type of electrochemical processors used in the writing assembly.Type: GrantFiled: October 12, 2012Date of Patent: September 9, 2014Assignee: Westfälische Wilhelms Universität MünsterInventor: Meinhard Knoll
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Patent number: 8792173Abstract: A changeable liquid lens array and a method of manufacturing the same. The changeable liquid lens array includes a substrate, a plurality of partition walls arrayed on the substrate and having a fluid travel path, cells defined by the plurality of partition walls, a first fluid comprised in the cells, a second fluid arranged on the first fluid, a first electrode arranged on at least one side surface of each of the partition walls, and a second electrode disposed to be separate from the partition walls. A shape of shape of an interface between the first fluid and the second fluid changes based on a voltage that is applied to the first electrode and the second electrode.Type: GrantFiled: September 10, 2013Date of Patent: July 29, 2014Assignees: Samsung Electronics Co., Ltd., SNU R&DB FoundationInventors: Jung-mok Bae, Hong-seok Lee, Hoon Song, Yong-joo Kwon, Jung-hoon Lee, Seung-yul Choi
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Patent number: 8730551Abstract: The present invention relates to improved electro-optic rearview mirror elements and assemblies incorporating the same. Area of the effective field of view of the electro-optic mirror element substantially equals to that defined by the outermost perimeter of the element.Type: GrantFiled: October 7, 2013Date of Patent: May 20, 2014Assignee: Gentex CorporationInventors: George A. Neuman, William L. Tonar, John S. Anderson, Henry A. Luten, David J. Cammenga, Juan C. Lara, Jeffrey A. Forgette
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Publication number: 20140126037Abstract: A tunable photonic crystal device comprising: alternating layers of a first material and a second material, the alternating layers comprising a responsive material, the responsive material being responsive to an external stimulus, the alternating layers having a periodic difference in refractive indices giving rise to a first reflected wavelength; wherein, in response to the external stimulus, a change in the responsive material results in a reflected wavelength of the device shifting from the first reflected wavelength to a second reflected wavelength.Type: ApplicationFiled: September 25, 2013Publication date: May 8, 2014Applicant: OPALUX INCORPORATEDInventors: Andre Arsenault, Geoffrey Alan Ozin, Daniel Patrick Puzzo
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Publication number: 20140085700Abstract: Provided are an electrochromic mirror and a method of manufacturing the same, the electrochromic mirror including: a first substrate and a second substrate facing each other; and an electrochromic layer interposed between the first substrate and the second substrate and containing an electrochromic material and an electrolyte, wherein at least one of the first substrate and the second substrate is a transparent film, whereby an entire thickness and weight of the electrochromic mirror can be reduced, and as a result, the degree of design freedom can be improved, and since the electrochromic layer containing the electrochromic material and the electrolyte is formed by a coating method, the efficiency of a manufacturing process can be improved, and a production cost can be reduced.Type: ApplicationFiled: September 25, 2013Publication date: March 27, 2014Applicant: LG Innotek Co., Ltd.Inventor: Sang Young PARK
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Patent number: 8665509Abstract: A method of bonding metal and glass using an optical contact bonding includes depositing an optical contact bonding medium on a surface of a metal substrate; and bonding the metal substrate on which the optical contact bonding medium is formed to a glass substrate using optical contact bonding.Type: GrantFiled: April 6, 2011Date of Patent: March 4, 2014Assignee: Samsung Display Co., Ltd.Inventor: Joon-Hyung Kim
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Patent number: 8625047Abstract: A fluid ingress resistant interactive display device is disclosed herein. The device includes one or more gasket layers to serve as a fluid barrier to resist fluid from entering an interior of the device.Type: GrantFiled: May 31, 2011Date of Patent: January 7, 2014Assignee: Microsoft CorporationInventors: Bernie Schultz, Rajesh Manoher Dighde
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Patent number: 8619183Abstract: In order to perform adjustment of relative positions between an optical system and imaging devices, a plurality of the imaging devices, a plurality of solid lenses that form images of the imaging devices, and a plurality of optical-axis control units that control the direction of optical axes of light incident to the imaging devices are included.Type: GrantFiled: January 9, 2009Date of Patent: December 31, 2013Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Ito, Makoto Kitagawa, Tomoya Shimura, Shinichi Arita, Satoru Inoue, Hirokazu Katakame, Sakae Saito, Shunichi Sato
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Patent number: 8593714Abstract: This invention discloses novel electrochromic devices and polymer actuator materials where nanoparticles are used to make composites. In particular, the said nanoparticles are wire shaped and disc shaped. These composites allow EC devices to be made with improved performance, particularly display devices could be made that consume low power and can be manufactured at low cost.Type: GrantFiled: May 19, 2009Date of Patent: November 26, 2013Assignee: AJJER, LLCInventors: Anoop Agrawal, Juan Carlos L. Tonazzi
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Patent number: 8576490Abstract: A changeable liquid lens array and a method of manufacturing the same. The changeable liquid lens array includes a substrate, a plurality of partition walls arrayed on the substrate and having a fluid travel path, cells defined by the plurality of partition walls, a first fluid comprised in the cells, a second fluid arranged on the first fluid, a first electrode arranged on at least one side surface of each of the partition walls, and a second electrode disposed to be separate from the partition walls. A shape of an interface between the first fluid and the second fluid changes based on a voltage that is applied to the first electrode and the second electrode.Type: GrantFiled: October 21, 2011Date of Patent: November 5, 2013Assignees: Samsung Electronics Co., Ltd., SNU R&DB FoundationInventors: Jung-mok Bae, Hong-seok Lee, Hoon Song, Yong-joo Kwon, Jung-hoon Lee, Seung-yul Choi
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Patent number: 8564871Abstract: An electrochromic apparatus comprises a first electrode layer and a second electrode layer spaced from and disposed substantially parallel to the first electrode. An electrochromic layer is disposed between the first and second electrode layers. An electrolyte layer is disposed between the electrochromic layer and one of the electrode layers. The electrochromic layer comprises the dehydration reaction product of a hydrolyzed aromatic component. An electrochromic composition comprises an aromatic component having an aromatic core and at least two silicon-based groups pending from the aromatic core. The silicon-based groups have a silicon-bonded group selected from the group of hydrolyzable groups, hydrolyzates of hydrolyzable groups, and combinations thereof.Type: GrantFiled: January 8, 2009Date of Patent: October 22, 2013Assignee: Dow Corning CorporationInventors: David Witker, Toshio Suzuki
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Patent number: 8559092Abstract: The present invention relates to improved electro-optic rearview mirror elements and assemblies incorporating the same. Area of the effective field of view of the electro-optic mirror element substantially equals to that defined by the outermost perimeter of the element.Type: GrantFiled: March 27, 2012Date of Patent: October 15, 2013Assignee: Gentex CorporationInventors: Mark D. Bugno, William L. Tonar, George A. Neuman, Danny L. Minikey, Jr., John S. Anderson, David L. Poll, Joel A. Stray, Bradley L. Busscher, Kenton J. Ypma
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Patent number: 8531646Abstract: An electro-optical device comprises a liquid crystal material disposed in a cell and electrodes configured to bias the liquid crystal material into a generally in-plane director configuration having a non-constant spatial pattern selectable or adjustable by an in-plane component of the biasing to produce a desired refractive of diffractive optical effect.Type: GrantFiled: September 11, 2008Date of Patent: September 10, 2013Assignee: Kent State UniversityInventors: Lei Shi, Philip J. Bos, Paul F. Manamon
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Patent number: 8520285Abstract: This methods and devices described herein relate to displays and methods of manufacturing cold seal fluid-filled displays, including MEMS. The fluid substantially surrounds the moving components of the MEMS display to reduce the effects of stiction and to improve the optical and electromechanical performance of the display. The invention relates to a method for sealing a MEMS display at a lower temperature such that a vapor bubble does not formforms only at temperatures about 15° C. to about 20° C. below the seal temperature. In some embodiments, the MEMS display apparatus includes a first substrate, a second substrate separated from the first substrate by a gap and supporting an array of light modulators, a fluid substantially filling the gap, a plurality of spacers within the gap, and a sealing material joining the first substrate to the second substrate.Type: GrantFiled: February 1, 2011Date of Patent: August 27, 2013Assignee: Pixtronix, Inc.Inventors: Eugene E. Fike, III, Joyce H. Wu, Jasper Lodewyk Steyn, Jignesh Gandhi
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Patent number: 8508384Abstract: A rearview mirror assembly for a vehicle includes an electro-optic mirror reflective element having a front glass substrate and a rear glass substrate, with no portion of the rear glass substrate extending beyond any portion of the front glass substrate. The reflective element includes a perimeter band disposed around a perimeter border region of a second surface of the front glass substrate. The perimeter band generally conceals the presence of a perimeter seal from view by the driver of the vehicle. A plastic molding may be circumferentially disposed about the circumferential edge of the front glass substrate without overlapping onto the first surface of the front glass substrate. The outermost part of the plastic molding may lack a sharp edge. The plane of the first surface of the front glass substrate may be generally flush with the outermost part of the plastic molding.Type: GrantFiled: November 30, 2012Date of Patent: August 13, 2013Assignee: Donnelly CorporationInventors: John T. Uken, Lee Karner, Richard R. Hook, Niall R. Lynam
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Patent number: 8411348Abstract: An electroconductive layer (2) designed to be combined with a substrate having a glass function, said layer (2) being composed of a metal grid (9), characterized in that the metal grid (9) consists of a pure metal and in that it is coated with at least one electrochemical protection layer (10), especially a metal layer or a metal nitride layer.Type: GrantFiled: October 22, 2007Date of Patent: April 2, 2013Assignee: Saint-Gobain Glass FranceInventors: Emmanuel Valentin, Samuel Dubrenat, Didier Jousse, Jean-Christophe Giron, Philippe Letocart, Se-Jong Kim, Emilie Steers
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Patent number: 8289607Abstract: An electrochromic device, with controlled transparency, for example of electrically controllable type, including between a transparent carrier substrate and a counter-substrate, at least one stack of functional layers, the outermost layers of which include electroconductive layers, the conductivity of at least one electroconductive layer not in contact with the carrier substrate being reinforced by a network of conductive elements in contact with this layer. The network includes a mesh, for which the area of the intermesh free space is substantially between 0.04 mm2 and 0.16 mm2 or in a vicinity of 0.09 mm2.Type: GrantFiled: February 24, 2009Date of Patent: October 16, 2012Assignee: Saint-Gobain Glass FranceInventors: Emmanuel Valentin, Samuel Dubrenat, Jean-Christophe Giron, Didier Jousse
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Patent number: 8248681Abstract: The present disclosure relates generally to polyaniline (PANI) materials capable of undergoing stable and reversible polyelectrochromic transitions between multiple oxidation states. More specifically, the embodiments described herein include novel PANI-PAAMPSA structures that are capable of undergoing stable and reversible transitions between the ES, LB and PB oxidation states. In some embodiments, the structures described are capable of undergoing stable transitions over a broad pH range. Also described herein are methods of preparing certain electrochromic structures.Type: GrantFiled: January 4, 2011Date of Patent: August 21, 2012Assignee: The Trustees of Princeton UniversityInventors: Yueh-Lin Loo, Joung Eun Yoo, Jacob Tarver
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Publication number: 20120176659Abstract: The welding filter device includes a light sensor, a microprocessor, a liquid crystal display, and a user interface. The light sensor senses light to generate a welding signal and a light source intensity signal. The microprocessor comprises a determining module, a control module, a regulating module, and a storage module. The determining module receives the welding signal and determines whether to activate a welding mechanism. The control module receives the light source intensity signal and outputs a control signal. The liquid crystal display presents a first display status according to the control signal. The user interface is used to generate a setting signal; wherein when the liquid crystal display presents the first display status, the regulating module receives the setting signal to regulate the settings so that the liquid crystal display presents a second display status. Furthermore, a method for controlling the welding filter device is also disclosed herein.Type: ApplicationFiled: March 3, 2011Publication date: July 12, 2012Applicant: ARCMASK OPTECH CO., LTDInventors: Chien-Hsing HSIEH, Edward Martin, Chia-Hung CHEN
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Patent number: 8213072Abstract: An electrofluidic display device including a first structure layer and a second structure layer is provided. The first structure layer includes a first substrate. A trench structure layer is disposed on the first substrate and has a trench surrounding an indent groove of a second substrate. A first electrode layer is disposed on the first substrate. A first hydrophobic layer is disposed on the first electrode layer. The second structure layer having the second substrate is located aside the first substrate with a gap. A groove structure layer is disposed on the second substrate. The groove structure has the indent groove surrounded by the trench. A second electrode layer is disposed on the groove structure layer. A second hydrophobic layer is disposed on the second electrode layer. Polar fluid is disposed in the indent groove. Non-polar fluid is disposed in the gap between the first and second substrates.Type: GrantFiled: March 29, 2011Date of Patent: July 3, 2012Assignee: Industrial Technology Research InstituteInventors: Yun-Sheng Ku, Wei-Yuan Cheng, Shu-Wei Kuo, Hsin-Hung Lee, Kuo-Lung Lo
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Patent number: 8169684Abstract: The present invention relates to improved electro-optic rearview mirror elements and assemblies incorporating the same. Area of the effective field of view of the electro-optic mirror element substantially equals to that defined by the outermost perimeter of the element.Type: GrantFiled: July 8, 2010Date of Patent: May 1, 2012Assignee: Gentex CorporationInventors: Mark D. Bugno, William L. Tonar, George A. Neuman, Danny L. Minikey, Jr., John S. Anderson, Mark R. Roth, Nigel T. Lock, Spencer D. Reese
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Patent number: 8049640Abstract: An interior rearview mirror assembly for a vehicle includes a mirror reflective element having a glass substrate with first and second surfaces and a circumferential edge along the periphery of the glass substrate. The mirror reflective element includes a mirror reflector established at a surface of the mirror reflective element other than the first surface of the glass substrate. The mirror assembly includes a plastic molding circumferentially disposed about the circumferential edge of the glass substrate without overlapping onto the first surface of the glass substrate. The plastic molding includes a portion that (a) abuts the circumferential edge of the glass substrate and (b) has an outer curved surface that extends from generally adjacent to the first surface of the glass substrate and that lacks a sharp edge. The plane of the first surface of the glass substrate may be generally flush with the outermost part of the plastic molding.Type: GrantFiled: February 25, 2011Date of Patent: November 1, 2011Assignee: Donnelly CorporationInventors: John T. Uken, Lee Karner, Richard R. Hook, Niall R. Lynam
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Patent number: 8049948Abstract: This invention provides a novel process for producing an electrochemical display element, which can easily form a white scattering layer between opposed electrodes, has a high level of suitability for production, and has high stability after long-term use. The production process is characterized in that a film containing a white scattering material and a polymeric binder is formed on at least one electrode in opposed electrodes, the other electrode is disposed so as to face the electrode with film formed thereon, a low-viscosity electrolyte is poured into a space between the opposed electrodes, and the polymeric binder is dissolved in or swollen in the electrolyte to form a gel-like electrolyte layer containing the white scattering material and the polymeric binder within the space.Type: GrantFiled: June 3, 2008Date of Patent: November 1, 2011Assignee: Konica Minolta Holdings, Inc.Inventors: Takeshi Hakii, Tomoo Izumi
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Patent number: 7957053Abstract: An electro-optic display comprises first and second substrates and a lamination adhesive layer and a layer of an electro-optic material disposed between the first and second substrates, the lamination adhesive layer having a thickness of from about 14 to about 25 ?m.Type: GrantFiled: October 26, 2009Date of Patent: June 7, 2011Assignee: E Ink CorporationInventors: Charles Howie Honeyman, Harit Doshi, Seungman Sohn, Eva Chen, Richard D. LeCain, Simon Pang, Gregg M. Duthaler
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Patent number: 7894117Abstract: A transparent window switchable rear vision mirror adapted to be secured to a motor vehicle for improved road safety, said switchable window/mirror including, a film suitable for use as a light modulating unit of suspended particle device (spd) light valve, said film comprising a matrix polymer material having droplets of a liquid light valve suspension comprising a plurality of particles dispersed in a liquid suspending medium distributed within a matrix, said film characterized in that presence or lack thereof of an electric field results in the particles being aligned such that a beam of light may be reflected, transmitted or absorbed depending on the status of the electrical field applied thereto such a film; a switchable mirror device comprising a substrate and a mono layer film capable of undergoing a reversible change in light transmission or reflectance, said substrate including a film comprising a transmission metal composition; and a power supply device to provide an electrical charge to said film fType: GrantFiled: January 15, 2007Date of Patent: February 22, 2011Inventor: Andrew Finlayson
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Patent number: 7889414Abstract: A reflection type display apparatus includes a first light modulating layer for controlling electrically and externally a light absorbing state and a light transmitting state, a second light modulating layer for controlling electrically and externally a light reflecting state and the light transmitting state, and a reflector for reflecting light of a particular wavelength band. The first and second light modulating layers and the reflector are arranged in order from a light incidence side.Type: GrantFiled: July 7, 2008Date of Patent: February 15, 2011Assignee: Canon Kabushiki KaishaInventor: Hajime Ikeda
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Patent number: 7884994Abstract: Provided is an electrochromic device (ECD) that includes: a first transparent electrode having a first substrate having thereon a first electrically conductive layer; a second transparent electrode having a second substrate having thereon a second electrically conductive layer; a first polymeric layer on the first transparent electrode, wherein the first polymeric layer includes a cathodic electrochromic polymer and a first non-electrochromic polymeric matrix; a second polymeric layer on the second transparent electrode, wherein the second polymeric layer includes an anodic electrochromic polymer and a second non-electrochromic polymeric matrix; and an electrolyte layer disposed between the first polymeric layer and the second polymeric layer. Also provided is a process of producing the ECDs, as well as the electrochromic layers themselves.Type: GrantFiled: October 16, 2008Date of Patent: February 8, 2011Assignee: Saint Gobain Glass FranceInventor: Fabienne Piroux
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Patent number: 7864397Abstract: An electrolyte composition is described. The electrolyte composition includes at least one ionic compound; at least one polar solvent; at least one polymerizable material; at least one nanoparticle based viscosity modifier; at least one chain transfer agent; and at least one initiator. Also described are electrochromic articles and devices including an electrolyte layer including an electrolyte composition. Methods of assembling an electrochromic article are also included.Type: GrantFiled: December 4, 2006Date of Patent: January 4, 2011Assignee: 3M Innovative Properties CompanyInventors: Junjun Wu, Brian T. Weber, Duane D. Fansler
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Patent number: 7839555Abstract: In a display device that includes a display space provided on a display surface side and a liquid sealed inside the display space so as to be operable and is constituted so as to be able to change a display color on the display surface side according to an application of an electric field to the liquid, the liquid is an ionic liquid containing an ambient temperature molten salt combining a cation and an anion. Further, an amount of water blended in the liquid is 0 to 10 parts by weight with respect to 100 parts by weight of the ionic liquid. This makes it possible both to reduce a voltage to be applied to the liquid so as to allow driving at a low voltage and to improve an operation performance.Type: GrantFiled: October 25, 2006Date of Patent: November 23, 2010Assignee: Sharp Kabushiki KaishaInventors: Shinichi Nakano, Akio Miyata, Tomoko Teranishi, Hiroko Niwano
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Patent number: 7830584Abstract: The present invention provides an organic-inorganic composite material containing a metal oxide, and a functional organic material located on the metal oxide, wherein the functional organic material and the metal oxide are bound via a silanol bond. An aspect that the silanol bond is formed by reacting a silane coupling agent with the metal oxide, and an aspect that the silane coupling agent has a reactive terminal are preferred. The present invention also provides a display electrode for electrochromic display device and electrode for photoelectric conversion device using the organic-inorganic composite material, an electrochromic display device using the display electrode and a photoelectric conversion device using the electrode.Type: GrantFiled: September 4, 2008Date of Patent: November 9, 2010Assignee: Ricoh Company, Ltd.Inventors: Takeshi Shibuya, Shigenobu Hirano
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Patent number: 7826124Abstract: A flexible electrochromic (EC) panel that is usable for a display device or for other applications in which at least a region of the panel is selectively caused to change opacity. An exemplary EC panel includes an electrochromic working layer or electrode formed of a PProDOT-Me2 polymer film that is deposited on an indium tin oxide (ITO)-coated polyethylene terephthalate (PET) flexible substrate. Similarly, a counter electrode is formed by depositing a vanadium oxide-titanium oxide (V2O5—TiO2) composite film on another ITO PET coated flexible substrate. An ultraviolet light-cured film sealant is employed to seal the flexible panel and also serves as a spacer between the working and counter electrodes. The film sealant is patterned to define a volume for injecting an electrolyte solution through an inlet port provided in the film sealant. The inlet port is then closed. The EC panel can readily be flexed without damage.Type: GrantFiled: October 2, 2008Date of Patent: November 2, 2010Assignee: University of Washington through its Center for CommercializationInventors: Chunye Xu, Chao Ma, Minoru Taya
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Patent number: 7813024Abstract: The present invention provides an EC mirror assembly including an EC mirror cell and a control for controlling the reflectivity of the mirror cell, the assembly also including a pair of contact elements independently displaceable relative to the mirror cell while maintaining an electrical connection with the control, the contact elements also being engageable with opposite edges of the mirror cell in order to provide an electrical connection between the control and the mirror cell.Type: GrantFiled: November 17, 2006Date of Patent: October 12, 2010Assignee: Magna Donnelly Engineering, GmbHInventors: John P. Desmond, Garret Coady, John P. Drummond, Martin McGarry, Patrick J. Dowling, Sean Fletcher, David Powell
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Patent number: 7800816Abstract: In a reflective a display device based on layer break up or layer displacement having at least two different states, in which one of the fluids (5) e. g oil in a first state adjoins at least a first support plate (3) and in the second state the other fluid (6) at least partly adjoins the first support plate, in which picture elements are separated by areas (13) having a hydrophilic surface dyes (or sometimes pigments) are added to the oil (usually hydrocarbon but also possibly silicone or fluorocarbon), to provide sufficient optical intensity.Type: GrantFiled: April 1, 2005Date of Patent: September 21, 2010Assignee: Liquavista B.V.Inventors: Robert A. Hayes, Mickael Joulaud, Thibault J B Roques-Carmes, Stephanie A. Palmier
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Patent number: 7800807Abstract: An electrochromic mirror includes an electrochromic film, an electrically conductive reflective film formed at one thickness direction side of the electrochromic film, an electrically conductive film provided at one thickness direction side of the electrochromic film and at a side of the electrically conductive reflective film that is opposite from the electrochromic film, an electrolytic solution containing lithium ions and enclosed between the electrically conductive reflective film and the electrically conductive film, and a reduction reaction compensation unit. In the electrolytic solution, due to applying a voltage such that the electrically conductive film is made positive and electrically conductive reflective film is made negative, the lithium ions move toward the side of the electrochromic film and are provided to a reduction reaction of the electrochromic film. The reduction reaction compensation unit compensates the reduction reaction.Type: GrantFiled: June 23, 2008Date of Patent: September 21, 2010Assignees: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho, National University Corporation Nagoya UniversityInventors: Junichi Nakaho, Masaharu Hattori, Atsushi Yamaguchi, Nagahiro Saito, Takahiro Ishizaki, Osamu Takai
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Patent number: 7777934Abstract: A color pixel structure of a color display system based on electrochromism. The color pixel structure includes two one-cell two-color type unit cells laminated. Each of the unit cells includes an upper panel, a lower panel and electrochromic materials of different colors applied to both the upper and lower panels. The color pixel structure exhibits improved color characteristics and have a simple structure. The color pixel structure can be applied to a variety of electrochromic displays due to their excellent visibility and simple structure.Type: GrantFiled: June 11, 2008Date of Patent: August 17, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae Eun Jang, Seung Nam Cha, Jae Eun Jung, Chang Ho Noh
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Publication number: 20100202036Abstract: A periscope that is switchable between the normal optical view of the outside, a display view, and an overlay view in which the outside view and display view are combined. The switching element is an electronically switchable mirror with primarily reflective, primarily transparent, and intermediate states, depending on the application of electrical potentials.Type: ApplicationFiled: April 17, 2010Publication date: August 12, 2010Inventors: Jeffrey Wayne Minor, Henry Clarence Davies, Edward Charles Schwartz, Michael Jones Klingensmith
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Patent number: 7729033Abstract: A device including: a first layer of material; a second layer of material disposed as a sealing layer; walls disposed to interconnect the first layer and second layer, wherein cavities are formed by the first layer, the second layer, and the walls; a fluid at least partially filling the cavities; and blocks integrally connected to the first layer of material, and defining housings filled at least partially with the material of the second layer and not including any of the fluid.Type: GrantFiled: January 10, 2008Date of Patent: June 1, 2010Assignee: Commissariat a l'Energie AtomiqueInventor: Jean-Charles Souriau
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Patent number: 7680406Abstract: Disclosed herein is a liquid-lens assembly using an electrowetting method. The liquid-lens assembly includes a liquid-lens module, a barrel supporting the liquid-lens module, and a housing coupled to the barrel and having an image sensor. Electrodes are provided on the barrel and the housing, so that current is applied to the liquid-lens module through the electrodes.Type: GrantFiled: March 16, 2007Date of Patent: March 16, 2010Assignee: Samsung Electro-Mechanics Co., Ltd.Inventor: Moon Sik Jung