With Coating, E.g., Providing Protective Coating On Sensitive Area Patents (Class 445/58)
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Patent number: 8556672Abstract: It is an object to produce a thin light-emitting device in an extremely simple method that does not include a substrate on which a light-emitting element is to be mounted.Type: GrantFiled: January 28, 2011Date of Patent: October 15, 2013Assignees: Citizen Electronics Co., Ltd., Citizen Holdings Co., Ltd.Inventor: Kenji Imazu
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Publication number: 20130257263Abstract: An electron emitting element of the present invention includes an electron acceleration layer between an electrode substrate and a thin-film electrode. The electron acceleration layer includes a binder component in which insulating fine particles and conductive fine particles are dispersed. Therefore, the electron emitting element of the present invention is capable of preventing degradation of the electron acceleration layer and can efficiently and steadily emit electrons not only in vacuum but also under the atmospheric pressure. Further, the electron emitting element of the present invention can be formed so as to have an improved mechanical strength.Type: ApplicationFiled: March 15, 2013Publication date: October 3, 2013Applicant: SHARP KABUSHIKI KAISHIInventors: Ayae NAGAOKA, Tadashi Iwamatsu, Hiroyuki Hirakawa, Yasuo Imura
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Patent number: 8545281Abstract: To provide an electroluminescent device in which an element substrate provided with a light-emitting element and a sealing substrate are bonded to each other without causing thermal damage to the light-emitting element and which is formed using an electroluminescent material. A sheet 108 in which layers of at least two different kinds of metals are stacked is formed in a peripheral portion of one or both of the element substrate 102 provided with an EL element 104 and a sealing substrate 106 bonded to the element substrate 102 so as to face each other. Further, the sheet is irradiated with a focused beam, and the irradiation portion of the sheet is heated, whereby at least two kinds of metals are alloyed, and the element substrate and the sealing substrate are bonded to each other by heat generated in the alloying.Type: GrantFiled: April 12, 2012Date of Patent: October 1, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Akihisa Shimomura, Kaoru Hatano
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Publication number: 20130249384Abstract: According to one embodiment, an organic electroluminescent device includes a first substrate, a second substrate, a stacked body, and an intermediate layer. The first substrate has a first major surface. The second substrate has a second major surface and a third major surface. The second major surface is facing the first major surface. The third major surface has a first concave-convex portion. The third major surface is provided opposite the second major surface. The stacked body provided between the first substrate and the second substrate. The stacked body includes a first electrode, a second electrode, and an organic light emitting layer. The intermediate layer is provided between the second substrate and the stacked body.Type: ApplicationFiled: December 18, 2012Publication date: September 26, 2013Inventors: Tomoaki SAWABE, Tomio Ono, Shintaro Enomoto
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Publication number: 20130249388Abstract: A fluorescent material-sealed sheet includes a plurality of fluorescent sections, an upper sealing section, and a lower sealing section, the plurality of fluorescent sections being sealed by the upper sealing section and the lower sealing section.Type: ApplicationFiled: March 14, 2013Publication date: September 26, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Tatsuya RYOWA, Yoshitaka TOMOMURA, Makoto IZUMI, Kazunori ANNEN, Masato OHNO
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Publication number: 20130241404Abstract: The present disclosure relates generally to optical media and/or encapsulant precursors and optical media encapsulants produced therefrom, the optical media and/or encapsulants configurable for use in lighting devices. Specifically, the optical media and/or encapsulant precursors comprises at least one chemically functionalized silsesquioxane moiety. Methods of reducing degradation from heat and/or optical flux exposure using the optical media and/or encapsulant comprising chemically functionalized silsesquioxane are disclosed.Type: ApplicationFiled: March 14, 2012Publication date: September 19, 2013Inventors: PETER GUSCHL, MATTHEW M. HALL, MONICA HANSEN, Walter E. Mason
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Publication number: 20130241393Abstract: According to one embodiment, a luminaire includes plural semiconductor light sources mounted on a board, sealing bodies provided on the respective semiconductor light sources, and a light color adjusting part to adjust light color emitted from the plural sealing bodies. The sealing bodies contain a phosphor excited by a primary light emitted from the semiconductor light sources. The light color adjusting part contains the phosphor and is provided between arbitrary adjacent sealing bodies, or is provided by causing a shape or a characteristic of an arbitrary sealing body among the plural sealing bodies to be different from another sealing body.Type: ApplicationFiled: June 28, 2012Publication date: September 19, 2013Applicant: Toshiba Lighting & Technology CorporationInventors: Yumiko HAYASHIDA, Soichi SHIBUSAWA, Yuiko NAKAGAWA
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Patent number: 8536783Abstract: The invention relates to an electroluminescent device (10) comprising a substrate and on top of the substrate a substrate electrode, a counter electrode and an electroluminescent layer stack with at least one organic electroluminescent layer (50) arranged between the substrate electrode (20) and the counter electrode (30), and an encapsulation means (90) encapsulating at least the electroluminescent layer stack, the electroluminescent device (10) comprises at least one contact means (60), for electrically contacting the counter electrode (30) to an electrical source. The invention discloses that at least one protective means (70) is arranged on the substrate electrode (20), wherein the protective means (70) is electrically non-conductive and is at least fully covering the area below the contact means (60).Type: GrantFiled: January 28, 2010Date of Patent: September 17, 2013Assignee: Koninklijke Philips N.V.Inventors: Herbert F. Boerner, Claudia M. Goldmann
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Publication number: 20130234583Abstract: Described are methods and apparatus for providing fluorescent lamps having a two-layer phosphor coating that includes a base coating and a top coating that economically provides a high color rendering index (CRI) of at least 87 with improved brightness. In an embodiment, a low-pressure discharge lamp includes a light transmissive envelope having a basecoat phosphor layer disposed on an inner surface, wherein the basecoat phosphor layer includes less than ten percent weight of a rare earth phosphor. Also included is a topcoat phosphor layer on a surface of the base coat phosphor layer that includes a blend of at least red, green, green-blue and blue emitting rare earth phosphors, and a fill gas composition within the light transmissive envelope.Type: ApplicationFiled: April 25, 2013Publication date: September 12, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Fangming DU, Heidi M. ANDERSON, William Erwin COHEN, Stephen Lloyd KILLION, Adam Jason BURNS
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Publication number: 20130229107Abstract: An organic light-emitting display device including: a substrate; an organic emission unit that is formed on the substrate and includes a laminate of a first electrode, an organic emission layer, and a second electrode; at least one organic layer that is formed on the substrate; and at least one inorganic layer that is formed on the substrate, contacts the organic layer in a planar direction, and contacts an environmental element to surround at least one border of the environmental element.Type: ApplicationFiled: September 6, 2012Publication date: September 5, 2013Inventor: Jin-Woo Park
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Publication number: 20130221835Abstract: Optical elements (130) are attached to a support film (110) at select locations, the select locations corresponding to locations of light emitting elements (140) on another substrate, e.g. the substrate of the title (150).The film is placed on the substrate containing the light emitting elements such that the optical elements are in contact with their corresponding light emitting elements. The optical elements are laminated to the light emitting elements, and the support film is removed. The optical elements may include wavelength conversion elements, lens elements, combinations of elements, and so on.Type: ApplicationFiled: October 20, 2011Publication date: August 29, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Grigoriy Basin, Paul Scott Martin
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Publication number: 20130216825Abstract: A method for protecting a flat display panel in which a resin film with adhesive agent is attached to a color filter glass substrate or an encapsulation glass of the flat display panel and the resin film attached flat display panel is cut into a plurality of cells to protect the flat display panel during a following manufacturing processes is provided.Type: ApplicationFiled: March 18, 2013Publication date: August 22, 2013Inventors: Yong-Oon HWANG, DongHo KANG
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Publication number: 20130209807Abstract: Electrodes and methods for making electrodes including modified carbon nanotube sheets are provided. The carbon nanotube sheets can be modified with metal particles or at least one mediator titrant. The electrodes can be disposed on a glassy carbon electrode to modify the glassy carbon electrode. Methods are provided that include forming a suspension of carbon nanotubes and metal particles or at least one mediator titrant, and filtering the suspension to form a modified carbon nanotube sheet.Type: ApplicationFiled: February 13, 2013Publication date: August 15, 2013Applicant: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.Inventor: Florida State University Research Foundation, Inc.
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Patent number: 8508698Abstract: A dual view display structure and a method for producing the same are provided. First, a display panel is provided. Then, a patterned barrier layer is formed on a transparent substrate. The transparent substrate with the patterned barrier layer is attached to the display panel. Because there is a gap between the display panel and the patterned barrier layer, a liquid transparent material is injected into the gap to form a transparent material layer to fill the gap. The invention can not only increase the viewing angles of the dual view display, but also increase the production yield.Type: GrantFiled: October 13, 2008Date of Patent: August 13, 2013Assignee: AU Optronics Corp.Inventors: Wei-Hung Kuo, Weng-Bing Chou, Tsung-Chin Cheng, Chih-Jen Hu, Feng-Yuan Gan
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Patent number: 8502451Abstract: A collector included in an electron tube is covered with a carbon nanotube layer over a required area on the surface thereof.Type: GrantFiled: March 16, 2010Date of Patent: August 6, 2013Assignee: Netcomsec Co. Ltd.Inventor: Akira Chiba
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Publication number: 20130189896Abstract: A method is provided for forming a uniform light emitting medium layer by a relief printing method without occurrence of printing defects. The method includes producing an organic EL device containing a substrate having thereon a pixel electrode, pixel regions that are demarcated with a partition wall on the pixel electrode, a light emitting medium layer having a light emitting layer containing at least an organic light emitting material on the pixel regions, and a counter electrode facing the pixel electrode. The method can have a step of forming at least one layer constituting the light emitting medium layer by a relief printing method, and the ink used in the relief printing method being transferred from two or more adjacent relief patterns within one of the pixel regions and being integrated by flow thereof to form the light emitting medium layer.Type: ApplicationFiled: February 8, 2013Publication date: July 25, 2013Applicant: Toppan Printing Co., Ltd.Inventor: Toppan Printing Co., Ltd.
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Publication number: 20130181602Abstract: An organic light emitting display apparatus includes a substrate, an organic light emitting portion comprising a plurality of organic light emitting devices formed on the substrate, and an encapsulation portion for encapsulating the organic light emitting portion. The encapsulation portion includes a porous layer formed on the organic light emitting portion, a planarization layer formed on the porous layer, and a barrier layer formed on the planarization layer. The porous layer prevents impurities from being concentrated at a part of the porous layer.Type: ApplicationFiled: August 23, 2012Publication date: July 18, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Tae-Wook Kang, Dong-Won Han, Young-Seo Choi, Jin-Ho Kwack
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Publication number: 20130176519Abstract: A liquid crystal display panel (1) includes: touch switches (50) each constituted by a switch electrode (52) of an active substrate (12) and a set of switch PS electrodes (51) of a counter substrate (11) so as to make conduct electricity when the active substrate (12) or the counter substrate (11) is pressed; and reflection coatings (38 and 39) which reflect infrared light emitted from a Fourier transform infrared spectrophotometer, the reflection coatings (38 and 39) being provided either in the active substrate (12) or the counter substrate (11) with the switch electrode (52) or the set of switch PS electrodes (51) stacked on a corresponding one of the reflection coatings (38 and 39). This provides a technique for efficiently determining the presence or absence of an alignment film on any touch switch provided inside of a liquid crystal display panel having the function of an in-cell touch sensor.Type: ApplicationFiled: September 22, 2011Publication date: July 11, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Takafumi Hayama, Shinji Yamagishi
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Publication number: 20130178127Abstract: An LED includes a chip having a light emitting surface, and a coating of phosphor-containing material on the light emitting surface. Phosphor particles are arranged in a densely packed layer within the coating at the light emitting surface, and such that the light emitting surface is in contacting relationship with the phosphor particles.Type: ApplicationFiled: February 28, 2013Publication date: July 11, 2013Applicant: Cree, Inc.Inventor: Cree, Inc.
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Publication number: 20130169149Abstract: A method for manufacturing a light emitting device having a light emitting element and a resin layer containing fluorescent material particles and a filler which reflects light comprises a fluorescent material precipitation process for precipitating the fluorescent material particles in advance of the filler. A light emitting device comprises a base body; a light emitting element mounted on an upper surface of the base body via a mounting portion; and a sealing resin for sealing the light emitting element. The sealing resin comprises: a fluorescent material-containing first layer for covering the light emitting element on and above the mounting portion, a fluorescent material-containing second layer formed on an upper surface of the base body around the mounting portion, and a filler-containing layer formed on the fluorescent material-containing second layer around the mounting portion.Type: ApplicationFiled: February 27, 2013Publication date: July 4, 2013Applicant: Nichia CorporationInventor: Nichia Corporation
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Publication number: 20130171903Abstract: A process for producing a conformal electroluminescent system. An electrically conductive base backplane film layer is applied upon a substrate. A dielectric film layer is applied upon the backplane film layer, then a phosphor film layer is applied upon the dielectric film layer. An electrode film layer is applied upon the phosphor film layer using a substantially transparent, electrically conductive material. An electrically conductive bus bar may be applied upon the electrode film layer. Preferably, the backplane film layer, dielectric film layer, phosphor film layer, electrode film layer and bus bar are aqueous-based and are applied by spray conformal coating. The electroluminescent phosphor is excitable by an electrical field established across the phosphor film layer such that the device emits electroluminescent light upon application of an electrical charge between the backplane film layer and at least one of the electrode film layer and the bus bar.Type: ApplicationFiled: September 22, 2012Publication date: July 4, 2013Inventors: Andrew Zsinko, Shawn J. Mastrian
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Patent number: 8469760Abstract: A light emitting device 10 includes: a lead frame 12a serving as a mounting portion having a cup 13; a light emitting element 14, mounted on the bottom face 13a of the cup, for emitting light having a predetermined peak wavelength; a layer of large phosphor particles 16, adsorbed and formed on the light emitting element, for absorbing light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the light emitted from the light emitting element; small phosphor particles 18, which have a smaller particle diameter than that of the large phosphor particles, for absorbing at least one of light emitted from the large phosphor particles and light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the at least one of the light emitted from the large phosphor particles and the light emitted from the light emitting element; and a sealing member 20, in which the small phosphor particles are dispersed, for sealinType: GrantFiled: March 27, 2007Date of Patent: June 25, 2013Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Tsukasa Maruyama, Masahiro Gotoh, Tetsuya Ikuta
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Publication number: 20130154471Abstract: An organic electroluminescent device includes a transparent substrate having a conductive coating, a plurality of electroactive layers, a cathode layer, and a protective wax layer. The wax layer may be disposed directly on an electrode, particularly a cathode. The wax layer alone protects the cathode and no getter material is required to exclude oxygen and/or moisture. An OLED lighting device capable of emitting light from front and back surfaces, wherein an adhesive layer, particularly a wax layer, is disposed between cathodes of two organic electroluminescent devices positioned back to back.Type: ApplicationFiled: December 15, 2011Publication date: June 20, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Donald Seton Farquhar, Michael Scott Herzog
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Publication number: 20130154466Abstract: The invention describes a lamp (1A, 1B, 1C, 1D) comprising a glass envelope (10) enclosing a light generating means (11), and an axially and/or circumferentially graded absorption coating (2A, 2B, 2C, 2D) applied to a surface of the glass envelope (10), wherein the graded absorption coating (2A, 2B, 2C, 2D) exhibits a smooth transition in a transition region (23A, 23C, 23D) from a first coated region (21 A, 21B, 21C, 21D) on the glass envelope (10) to a second coated region (22A, 22B, 22C, 22D) on the glass envelope (10). The invention further describes a lighting assembly (4) comprising a lamp according to any of claims 1 to 11 and a reflector (40) for collecting and shaping any light passing through the graded absorption coating (2A, 2B, 2C, 2D) of the lamp (1A, 1B, 1C, 1D).Type: ApplicationFiled: August 24, 2011Publication date: June 20, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Juergen Flechsig, Martin Tobias Polster, Hans-Alo Dohmen, Ralph Kecke
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Publication number: 20130154481Abstract: Example embodiments of the present invention provide a LED light source with an effective and efficient heat management system. For example, embodiments of the present invention include devices, systems, materials, and methods to effectively transfer heat away from LEDs used in an LED light source to produce an LED light source that has high lumen output compared to conventional LED light sources. In particular, example embodiments of the present invention provide an LED light source that includes a transparent or translucent heat conductive material in which the LEDs are embedded.Type: ApplicationFiled: October 31, 2012Publication date: June 20, 2013Inventors: Densen Cao, Steven D. Jensen
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Patent number: 8466610Abstract: The disclosure provides methods and materials for decreasing the cost and increasing the efficiency of electroluminescent devices. The disclosure also provides electroluminescent devices prepared by such methods. In one embodiment, for example, there is provided a method for preparing an electroluminescent device comprising two metal electrodes, an electroluminescent layer, an optical/insulating layer, and a conductive layer, all of which are disposed on a transparent substrate. One of the electrodes is patterned, and the optical/insulating layer comprises vias to allow conduction between the patterned electrode and the conductive layer.Type: GrantFiled: May 13, 2010Date of Patent: June 18, 2013Assignee: SRI InternationalInventors: Yijian Shi, Qianfei Xu
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Patent number: 8460973Abstract: A method for manufacturing a semiconductor light emitting apparatus of side emission type includes disposing a light emitting device on a substrate having a predetermined electrode pattern. A side member is disposed on the substrate to be spaced apart from the light emitting device with a predetermined space. The light emitting device and the electrode pattern are electrically connected. A light reflecting member is disposed in the space between the side member and at least one side surface of the light emitting device so that the light reflecting member is in contact with the at least one side surface of the light emitting device. A light-transmitting sealing member is disposed to surround the light emitting device other than the at least one side surface that is in contact with the light reflecting member. A light-reflective ceiling member is disposed at least over the sealing member.Type: GrantFiled: September 24, 2010Date of Patent: June 11, 2013Assignee: Stanley Electric Co., Ltd.Inventor: Tsutomu Ohkubo
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Publication number: 20130140983Abstract: A light-emitting structure and a method of fabricating the light-emitting structure. The method includes covering an LED die provided on a carrier with a uniform phosphor layer, with an accommodation space constituted by the carrier and the uniform phosphor layer; and forming in the accommodation space a first light-pervious body such that the uniform phosphor layer in various shapes is formed on the LED die. The light-emitting structure thus fabricated has excellent optical property.Type: ApplicationFiled: June 17, 2011Publication date: June 6, 2013Applicant: ACHROLUX INCInventors: Peiching Ling, Dezhong Liu
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Publication number: 20130134861Abstract: Disclosed herein is a mercury vapor discharge lamp and methods for making same, where the lamp comprises a phosphor coating layer disposed on at least a portion of the inner surface of the lamp envelope. The phosphor coating layer comprises a phosphor composition comprising a colloidal alumina, particles comprising at least one rare earth compound, and phosphor particles, and the particles comprising at least one rare earth compound are present in the phosphor composition in an amount from about 0.5 percent to about 5 percent of the weight of the phosphor particles. The presence of colloidal alumina, the rare earth compound, and these selected phosphors may contribute to an increase at least one of lumen output or lumen maintenance for the lamp, as compared with the same mercury vapor discharge lamp comprising the same phosphor composition without colloidal alumina and without the particles comprising at least one rare earth compound.Type: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Inventors: Jon Bennett Jansma, Jianmin He, Fangming Du, William Erwin Cohen
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Publication number: 20130137334Abstract: Provided is a film formation apparatus for manufacturing an apparatus such as an organic electroluminescence light emitting apparatus, which has high resolution and high productivity. The film formation apparatus includes: multiple mask unit holding portions for supporting mask units, respectively; multiple alignment mechanisms provided in accordance with the multiple mask unit holding portions; and a vapor deposition source in which the multiple mask units are aligned and arranged by the multiple alignment mechanisms one by one with respect to one substrate, and then film formation is performed.Type: ApplicationFiled: November 13, 2012Publication date: May 30, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Canon Kabushiki Kaisha
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Publication number: 20130134862Abstract: A fluorescent lamp is provided including a five phosphor blend comprising four rare earth phosphors, including BAMn, and a non-rare earth white halophosphate phosphor. This phosphor blend provides a lamp that exhibits high color rendering index (CRI), of at least about 85, i.e. at least 87, while simultaneously achieving good lumen output, or lumens per watt (LPW), of at least about 70, i.e. at least 75, at all CCTs, and particularly at lower CCT of between about 3000K and 4100K. The phosphor system provided includes a rare earth-doped red emitting phosphor, a rare earth-doped blue emitting phosphor, a rare earth-doped green-blue emitting phosphor, a rare earth-doped green emitting phosphor and a non-rare earth white halophosphate phosphor.Type: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Inventors: Fangming Du, William Winder Beers, Jon Bennett Jansma
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Publication number: 20130127328Abstract: A light-emitting device includes a substrate that includes at least a pair of electrodes, an LED element electrically mounted on the substrate, a phosphor plate adhered to an upper surface of the LED element and including an upper surface and a lower surface each having an area larger than that of the upper surface of the LED element, a white resin provided on an upper surface of the substrate and seamlessly covering a peripheral side surface of the LED element and a peripheral side surface of the phosphor plate. A lower surface of the phosphor plate is adhered to the upper surface of the LED element through a transparent adhesive.Type: ApplicationFiled: June 18, 2012Publication date: May 23, 2013Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventors: Kazuya ISHIHARA, Yuki SUTO, Yusuke WATANABE
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Publication number: 20130113362Abstract: A low-pressure discharge lamp includes, in an exemplary embodiment, a light-transmissive envelope, a fill-gas composition capable of sustaining a discharge sealed inside the light-transmissive envelope, and a phosphor composition at least partially disposed on an interior surface of said light-transmissive envelope forming at least one phosphor layer. The phosphor composition includes at least one phosphor, and at least one amalgam-forming material.Type: ApplicationFiled: November 6, 2012Publication date: May 9, 2013Applicant: GENERAL ELECTRIC COMPANYInventor: General Electric Company
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Publication number: 20130113361Abstract: A low-pressure discharge lamp includes, in an exemplary embodiment, a light-transmissive envelope, a fill-gas composition capable of sustaining a discharge sealed inside the light-transmissive envelope, and a phosphor composition at least partially disposed on an interior surface of said light-transmissive envelope forming at least one phosphor layer. The phosphor composition includes at least one phosphor, and at least one amalgam-forming material.Type: ApplicationFiled: November 9, 2011Publication date: May 9, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Ottokar GYULASI, Peter LUCZ, Peter Ivan POCZIK, Balazs Torok
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Patent number: 8430706Abstract: A method of manufacturing an organic electroluminescent device having at least two successive light-emitting layers formed between a pair of electrodes using a liquid phase method includes: forming a first light-emitting layer on a base using the liquid phase method and performing an insolubilization process on the first light-emitting layer; and forming a second light-emitting layer on the first light-emitting layer, on which the insolubilization process has been performed, using the liquid phase method. In the insolubilization process, an insoluble layer that is not soluble in a solvent that dissolves the second light-emitting layer is formed on at least an upper surface of the first light-emitting layer.Type: GrantFiled: August 30, 2007Date of Patent: April 30, 2013Assignee: Seiko Epson CorporationInventors: Shunichi Seki, Masashi Goto
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Publication number: 20130099656Abstract: A low-pressure discharge lamp includes, in an exemplary embodiment, a light-transmissive envelope, a fill-gas composition capable of sustaining a discharge sealed inside the light-transmissive envelope, and a phosphor composition at least partially disposed on an interior surface of the light-transmissive envelope. The phosphor composition is disposed on an interior surface of the light-transmissive envelope in a plurality of layers that include at least a basecoat phosphor layer and a topcoat phosphor layer. The basecoat phosphor layer includes at least one halophosphor and the topcoat phosphor layer includes a blend of at least two rare earth phosphors. The basecoat phosphor layer has a greater Color Rendering Index (CRI) value than the topcoat phosphor layer.Type: ApplicationFiled: October 25, 2011Publication date: April 25, 2013Inventors: Fangming DU, William Winder Beers, Jon Bennett Jansma
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Publication number: 20130099661Abstract: A light-emitting diode component includes a primary source, a conversion layer forming a secondary source configured for absorbing the primary radiation at least in part and emitting a secondary radiation, an encapsulation layer, situated between the primary and secondary sources. The light-emitting diode component also includes a reflection layer (i) situated between the encapsulation layer and the conversion layer and having a face in contact with the encapsulation layer so as to form an interface with the encapsulation layer, the reflection layer (i) and the encapsulation layer being configured so that the interface allows the primary radiation originating from the primary source to pass and reflects the secondary radiation toward the outside of the light emitting diode.Type: ApplicationFiled: October 18, 2012Publication date: April 25, 2013Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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Patent number: 8427042Abstract: A light-emitting device has a structure in which a light-emitting element is placed on a wiring pattern, with the wiring pattern and an upper portion of the light-emitting element being connected with each other by a bonding wire, and has a feature in that a phosphor kneaded matter, obtained from a phosphor kneaded matter packaging container, is sealed on the wiring pattern and the light-emitting element by a sealing resin. With this structure, it becomes possible to emit white light with high efficiency and consequently to obtain white light that is remarkably superior in color reproducibility (NTSC ratio).Type: GrantFiled: July 14, 2009Date of Patent: April 23, 2013Assignee: Sharp Kabushiki KaishaInventors: Toshio Hata, Nobuaki Aoki
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Patent number: 8425271Abstract: A method of forming an LED lamp with a desired distribution of phosphor is disclosed. The method includes the steps of mixing a plurality of phosphor particles in an uncured polymer resin for which the viscosity can be controlled in response to temperature to form a substantially uniform suspension of the phosphor particles in the resin. The uncured resin is then placed into a defined position adjacent an LED chip and the temperature of the resin is increased to correspondingly decrease its viscosity but to less than the temperature at which the resin would cure unreasonably quickly. The phosphor particles are encouraged to settle in the lowered-viscosity resin to a desired position with respect to the LED chip, and the temperature of the resin is thereafter increased to the point at which it will cured and solidify.Type: GrantFiled: August 16, 2007Date of Patent: April 23, 2013Assignee: Cree, Inc.Inventors: Christopher P. Hussell, Michael J. Bergmann, Brian T. Collins, David T. Emerson
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Publication number: 20130095720Abstract: A method of manufacturing an organic EL display device that includes an element substrate on which a first organic luminescent material and a second organic luminescent material are formed, includes forming the first organic luminescent material by dripping the first organic luminescent material from an inkjet nozzle on the element substrate while relatively moving the inkjet nozzle and the element substrate in a first direction, and forming the second organic luminescent material by dripping the second organic luminescent material from an inkjet nozzle on the element substrate while relatively moving the inkjet nozzle and the element substrate in a direction perpendicular to the first direction.Type: ApplicationFiled: December 6, 2012Publication date: April 18, 2013Inventors: Yuko Matsumoto, Hidehiro Sonoda, Noboru Kunimatsu
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Patent number: 8419497Abstract: A method of manufacturing a light emitting device. The method includes: mounting a light emitting chip on a substrate; forming a transparent resin portion and a phosphor layer by using a liquid droplet discharging apparatus, the transparent resin portion being formed in a shape of a dome and covering the light emitting chip to fill an exterior thereof on the substrate, a phosphor layer containing phosphor and being formed on an exterior of the transparent resin portion close to at least a top side thereof; and forming a reflecting layer at a position exterior of the transparent resin portion and the phosphor layer close to the substrate.Type: GrantFiled: October 15, 2010Date of Patent: April 16, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Isao Takasu, Yuko Nomura, Tsuyoshi Hioki, Isao Amemiya, Kazuhide Abe
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Patent number: 8421967Abstract: Transflective-type and reflection-type liquid crystal display devices having a high image quality are provided at low cost. A liquid crystal display device according to the present invention is a liquid crystal display device having a reflection region for reflecting incident light toward a display surface, the reflection region including a Cs metal layer (metal layer), a gate insulating layer formed on the Cs metal layer, a semiconductor layer formed on the gate insulating layer, and a reflective layer formed on the semiconductor layer. On the surface of the reflective layer, a first recess and a second recess located inside the first recess are formed. The Cs metal layer and the semiconductor layer each have an aperture, and one of the first recess and the second recess is constituted by the aperture of the Cs metal layer, and the other is constituted by the aperture of the semiconductor layer.Type: GrantFiled: October 25, 2007Date of Patent: April 16, 2013Assignee: Sharp Kabushiki KaishaInventors: Tetsuo Kikuchi, Hideki Kitagawa, Hajime Imai, Yoshihito Hara
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Patent number: 8408961Abstract: A method for producing a molybdenum film for lamp construction is provided. The method may include roughening at least a part of the surface of the molybdenum film by sandblasting with a sandblasting means, wherein the sandblasting means contains at least one of aluminum oxide and quartz sand as well as at least one further component.Type: GrantFiled: April 24, 2008Date of Patent: April 2, 2013Assignee: OSRAM Gesellschaft mit beschraenkter HaftungInventors: Jürgen Becker, Detlef Günther, Andreas Naujoks, Andreas Ponnier, Lothar Vollmer
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Publication number: 20130076228Abstract: A fluorescent lamp is provided including a phosphor blend comprising less than about 10% by weight rare earth phosphor, based on the total weight of the phosphor composition. This phosphor blend, when coated on a lamp, provides a lamp that exhibits high color rendering index (CRI), of at least 87, while simultaneously achieving low CCT, of less than about 4500K, i.e. of between about 3000K and 4500K. The phosphor system provided includes a non-rare earth strontium red broad band phosphor, a non-rare earth blue broad band halophosphor, and a rare earth-doped green-blue emitting phosphor, more specifically, a combination of SAR and blue-halo non-rare earth phosphors, and less than 20 wt % BAMn phosphor, based on the total weight of the phosphor system.Type: ApplicationFiled: September 28, 2011Publication date: March 28, 2013Inventors: Fangming Du, William Winder Beers, Jon Bennett Jansma, William Erwin Cohen
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Publication number: 20130076230Abstract: According to one embodiment, a manufacturing method for a light-emitting device includes: mounting a light-emitting element on a substrate; and dispersing, in liquid transparent resin, phosphor particles in micron order excited by light radiated from the light-emitting element to emit light and electrostatically applying or electrostatically spraying dispersed liquid of the phosphor particles to thereby form a layer including the phosphor particles on the upper surface of the light-emitting element.Type: ApplicationFiled: August 29, 2012Publication date: March 28, 2013Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Miho Watanabe, Nobuhiko Betsuda, Hirotaka Tanaka
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Publication number: 20130063024Abstract: The present invention provides a glass-sealed LED lamp which includes a mounting substrate, an LED chip mounted on the mounting substrate, a glass sealing body, and a glass bonding portion bonding the LED chip to a portion of a lower surface side of the glass sealing body. A clearance between a lower surface of the glass sealing body and an upper surface of the mounting substrate side, which causes total reflection at an interface between the glass sealing body and the clearance, is formed outward of the portion of the lower surface side of the glass sealing body.Type: ApplicationFiled: September 7, 2012Publication date: March 14, 2013Applicant: Toyoda Gosei Co., Ltd.Inventors: Satoshi Wada, Miki Moriyama
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Publication number: 20130057142Abstract: Among end portions of a plurality of organic compound layers patterned by photolithography, an end portion in an area that is not located between luminescent elements and that is located in an area covered with a second electrode is formed to have a smaller inclination angle than that of an end portion located between the luminescent elements.Type: ApplicationFiled: August 24, 2012Publication date: March 7, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Toshihide Kimura, Tomoyuki Hiroki, Manabu Otsuka, Nobuhiko Sato
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Publication number: 20130050979Abstract: A lighting device comprising a solid-state light source, and a diffuser configured for color mixing of the light from the solid-state light source and spatially separated therefrom, the diffuser comprising at least one phosphor material. Methods of fabricating a lighting device having a reduced total amount of phosphor comprising combining an amount of phosphor with a diffuser structure.Type: ApplicationFiled: August 26, 2011Publication date: February 28, 2013Inventors: ANTONY P. VAN DE VEN, CHRISTOPHER HUSSELL, RONAN P. LETOQUIN, ZONGJIE YUAN, TAO TONG, PETER GUSCHL
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Publication number: 20130049580Abstract: The invention relates to an organic optoelectronic device, such as a display device, which is protected from the surrounding air by a sealed encapsulation which includes thin layers, and to a method for encapsulating the same. Said device has an electroluminescent unit having at least one active area (5) covered with a multi-layer encapsulation structure (201) and an electric connection area adjacent to the active area, the encapsulation structure including n stack(s) (n?1) comprising an inorganic film F1, . . . , Fn and a photosensitive layer C1, . . . , Cn, including an internal stack F1/C1 in which F1 covers the active area and C1, which is deposited in a liquid phase, is superposed thereon. According to the invention, the layer or each layer C1, Cn is etched and covers the film F1, . . . , Fn by extending around a peripheral edge (5a) of the active area in at least one structured surrounding portion (210, 211, 212) ending beyond the adjacent connection area, and if n>2, the or each layer C2, . . .Type: ApplicationFiled: April 1, 2011Publication date: February 28, 2013Inventors: Tony Maindron, Bernard Aventurier, Julia De Girolamo
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Publication number: 20130052904Abstract: A method of applying a Faraday cage to a lucent resonator, the resonator having a void containing microwave-excitable material and being adapted for microwave resonance in the resonator and within the Faraday cage for driving a light emitting plasma in the void, the method consisting in the steps of: deposition of a conductive material onto the lucent resonator; applying, patterning and developing a photoresist material over the conductive material to leave the conductive material exposed where it is not required; removing the conductive material where not required and the photoresist material from the required conductive material, leaving a reticular network of conductive material providing a Faraday cage and depositing a layer of protective material over the cage of conductive material.Type: ApplicationFiled: February 8, 2011Publication date: February 28, 2013Inventors: Floyd Pothoven, Andrew Simon Neate