With Optical Device Or Special Ray Transmissive Envelope Patents (Class 313/110)
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Patent number: 7819539Abstract: A light emitting diode (LED). In one embodiment, the LED comprises a base including a cavity, an LED chip disposed on a bottom of the cavity and configured to generate a first light, and a light conversion layer. The light conversion layer includes an upper substrate, a lower substrate and a wavelength conversion particle. The light conversion layer is configured to convert a portion of the first light into a second light according to light emitted by the wavelength conversion particle. Furthermore, the light conversion layer is disposed on an upper surface of the base.Type: GrantFiled: April 14, 2009Date of Patent: October 26, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Gun-Woo Kim, Jae-Byung Park, Don-Chan Cho, Hae-Il Park, Jin-Seob Byun, Jung-Han Shin, Seon-Tae Yoon, Sung-Jin Hong
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Publication number: 20100259151Abstract: An LED module comprises an LED having a first optical axis and a lens fixed over the LED for refracting light emitted from the LED. The lens comprises an emission surface having a second optical axis and an incidence surface having a third optical axis. The second optical axis of the emission surface offsets from the first optical axis of the LED in a first direction for increasing a light intensity at a side of the first optical axis in the first direction. The first, second and third optical axes are in a line along the first direction. The third optical axis offsets from the first optical axis of the LED at a side opposite to that of the second optical axis.Type: ApplicationFiled: October 26, 2009Publication date: October 14, 2010Applicants: FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD.Inventors: CHIN-CHUNG CHEN, HAI-WEI ZHANG
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Patent number: 7791257Abstract: A technique for a display device using a display panel with Lambert light distribution, such as a plasma display panel, which displays a bright image with less contrast deterioration. This device has a front sheet which is integrally or separately located in front of the display panel. The front sheet includes light guides which extend in the horizontal direction and have a virtually convex cross section in the vertical direction with their apexes on the light exit side. A light reflection layer and a light-absorbing layer are sequentially stacked on the lateral sides of the light guides.Type: GrantFiled: May 18, 2007Date of Patent: September 7, 2010Assignee: Hitachi, Ltd.Inventors: Koji Hirata, Kei Adachi
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Patent number: 7791277Abstract: Disclosed is a Plasma Display Panel (PDP). According to an example, the PDP includes a panel, a base film in the front surface of the panel, and an Electro Magnetic Interference (EMI) shielding film in the base film. Another example of the PDP includes a panel with a panel grounding unit in the front surface, a base film in the front surface of the panel, an EMI shielding film on the base film, a back cover surrounding the panel, and a grounding unit for electrically connecting the panel grounding unit to the back cover. The panel grounding unit and the grounding unit are connected through a conductive substance. The PDP of this research can protect the panel from being damaged by the grounding unit and reduce production costs. Also, it can increase EMI shielding rate by grounding the EMI absorbed in the EMI shielding film.Type: GrantFiled: July 12, 2006Date of Patent: September 7, 2010Assignee: LG Electronics Inc.Inventor: Yu Park
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Publication number: 20100213809Abstract: A headlamp is provided having a cap and a light output which is predetermined by international standardization with respect to the distance and position with respect to a reference plane of the cap, wherein the light output is provided by one or more semiconductor light sources.Type: ApplicationFiled: August 12, 2008Publication date: August 26, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Manfred Roehl, Bernhard Siessegger
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Publication number: 20100207534Abstract: Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.Type: ApplicationFiled: October 8, 2008Publication date: August 19, 2010Applicant: PHILIPS SOLID-STATE LIGHTING SOLUTIONS, INC.Inventors: Kevin J. Dowling, Ihor A. Lys, Brian Roberge, Ryan C. Williamson, Ron Roberts, Michael Datta, Tomas Mollnow, Frederick M. Morgan
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Publication number: 20100187965Abstract: There is provided a resin which, in spite of having excellent impact resistance because of containing a rubber ingredient, can be molded into a haze-free and beautiful state across the entire surface of molded products even if the molded products are large-sized injection molded products, and is suitable for molded products on which a vapor deposition layer is formed by the direct vapor deposition method, and is suitable for molded products which are joined by the hot plate welding method, particularly molded products such as housing members of automotive lamps, which require weatherability. Also provided is a graft copolymer (B) obtained by polymerizing a (meth)acrylate monomer (b1) a homopolymer of which has a glass transition temperature exceeding 0° C. in the presence of a composite rubber (A) containing a polyorganosiloxane (A1) and a poly(meth)acrylate (A2), and then polymerizing an aromatic vinyl monomer (b2) and a cyanided vinyl monomer (b3).Type: ApplicationFiled: July 10, 2008Publication date: July 29, 2010Applicants: Mitsubishi Rayon Co., Ltd., Techno Polymer Co., Ltd.Inventors: Tsuneki Wakita, Toshihiro Kasai, Masaki Maeda, Yasunobu Kaneko
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Publication number: 20100171406Abstract: To provide an electroconductive laminate which has a broad transmission/reflection band and which is excellent in electrical conductivity (electromagnetic wave shielding properties), visible light transmittance, visible light antireflection properties, near infrared shielding properties and moisture resistance, and an electromagnetic wave shield for a plasma display employing such a laminate. An electroconductive laminate 20 comprising a substrate 21 and an electroconductive film 22 formed on the substrate 21, wherein the electroconductive film 22 has a multilayer structure having a high refractive index layer (23a to 23e) and a metal layer (24a to 24d) alternately laminated in this order from the substrate side in a total number of 2n+1 layers (wherein n is an integer of from 1 to 12) and further having a hydrogenated carbon layer 25 at a position most removed from the substrate 21; the refractive index of the high refractive index layer (23a to 23e) is from 1.5 to 2.Type: ApplicationFiled: March 18, 2010Publication date: July 8, 2010Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Masayuki Morino, Kazuya Takemoto, Hideaki Miyazawa, Michihisa Tomida, Tamotsu Morimoto, Yuichi Hino
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Patent number: 7750569Abstract: A high-frequency discharge lamp includes a coaxial waveguide including an internal conductor and a pipe-shaped external conductor surrounding said internal conductor, and a discharge tube including a ceramic or glass tube having an approximately ellipse spherical bulged part formed in a middle of a longitudinal direction, and both ends pinched and sealed; a conductor assembly sealed and attached to an end of the ceramic or glass tube; and an auxiliary electrode for starting disposed near the approximately ellipse spherical bulged part. A rare gas for starting with 1 atmospheric pressure or more at room temperature together with a light emission substance is enclosed inside of the approximately ellipse spherical bulged part. The discharge tube is inserted conductor assembly end first and held in a top opening of the coaxial waveguide. A high-voltage pulse generated by a high-voltage pulse generator is applied to the auxiliary electrode through a pulse transmission line.Type: GrantFiled: February 13, 2007Date of Patent: July 6, 2010Assignee: Koito Manufacturing Co., Ltd.Inventors: Takuya Serita, Masaya Shido
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Patent number: 7745996Abstract: A film adhered on a display panel includes a black layer for preventing an external light from entering into the display panel, and a reflective layer for preventing light emitted from the display panel from being absorbed in the black layer. The film minimizes the influence of an external light and improves transmittance, thereby providing a user with a good-quality picture.Type: GrantFiled: February 8, 2007Date of Patent: June 29, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-hwan Lim, Jeong-ho Nho, Seok-il Yoon, Wook-jae Jeon, Dae-hee Lee
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Publication number: 20100156765Abstract: An organic light emitting diode (OLED) display includes a substrate where OLEDs are formed and an encapsulation member fixed onto the substrate while covering the OLEDs. The encapsulation member includes a photochromic material so that the encapsulation member is colored by external light.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Soon-Ryong Park, Woo-Sukof Jung, Hee-Chul Jeon, Eun-Ah Kim, Hee-Seong Jeong, Noh-Min Kwak, Chul-Woo Jeong, Joo-Hwa Lee
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Publication number: 20100156263Abstract: The present invention relates to a deuterium lamp with a structure to enable high-accuracy positioning with respect to a mounting object such as an analyzer. The deuterium lamp comprises a sealed container in which a light-emitting portion to emit a discharge light in a predetermined direction is stored. The sealed container is constituted by a hollow body portion in which the light-emitting portion is stored and a hollow guide portion which guides a discharge light from the light-emitting portion to a light exit window provided at its front end. The deuterium lamp further comprises an axis adjusting member fixed to the hollow guide portion while storing at least a part of the hollow guide portion and a sealing layer for fixing the hollow guide portion and the axis adjusting member to each other.Type: ApplicationFiled: August 8, 2006Publication date: June 24, 2010Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yoshinobu Ito, Masaki Ito, Koji Matsushita
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Patent number: 7741760Abstract: Provided is a display apparatus including a plurality of pixels each composed of an organic electroluminescent device, in which the dependency of a view angle can be reduced without the sacrifice of the luminance of the display apparatus. The display apparatus of the present invention includes a plurality of pixels each composed of an organic electroluminescent device, in which at least one of the pixels is divided into a plurality of areas different in dependency of a view angle.Type: GrantFiled: March 21, 2006Date of Patent: June 22, 2010Assignee: Canon Kabushiki KaishaInventors: Takashi Moriyama, Masahiro Fushimi, Toshiko Morii
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Patent number: 7737634Abstract: A light emitting diode (“LED”) Device with Flexible Containment for Liquid Encapsulant is disclosed. The LED Device with Flexible Containment for Liquid Encapsulant includes an LED in a concave base housing, the LED having a p-doped semiconductor body and an n-doped semiconductor body. The device further includes a liquid containment chamber over the LED, configured to contain liquid encapsulant, and space permitting expansion and contraction of the liquid encapsulant in the chamber.Type: GrantFiled: March 6, 2006Date of Patent: June 15, 2010Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Margaret Tan Kheng Leng, Janet Bee Yin Chua
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Publication number: 20100133974Abstract: A plasma display panel including a front substrate on which a plurality of discharge electrodes for generating a discharge are formed, a rear substrate on which barrier ribs partitioning discharge cells are formed, the rear substrate being disposed to face the front substrate, and a light absorption layer disposed between the discharge electrodes and the front substrate, the light absorption layer being formed of a plurality of metal particles, and the discharge electrodes being formed of a plurality of extension portions that are grown using the metal particles as seeds, whereby the light absorption layer reduces the reflectivity of the external light.Type: ApplicationFiled: November 19, 2009Publication date: June 3, 2010Inventors: Young-Suk Cho, Myun-Gi Shim, Hyun-Ki Park, Dong-Gun Moon, Sang-Yeol Hur
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Publication number: 20100133975Abstract: An envelope for photographic lighting that enhances and modifies light from a light source to create desirable light for photography. The envelope is constructed to include a series of linear lenses surrounding a light source to produce multiple distorted images of light at a diameter corresponding to the curvature of the lens and the distance from the light source. The envelope homogenizes the distribution of light by multiplying the projected light dispersion pattern to modify or “shape” the light for stage, studio, motion picture or still photography.Type: ApplicationFiled: December 2, 2009Publication date: June 3, 2010Inventor: Sergio Alejandro Ortiz-Gavin
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Publication number: 20100117504Abstract: The present invention provides a method of producing a blackened electromagnetic interference shielding glass, which includes (a) forming a conductive pattern on a surface of glass on which a tin (Sn) component is diffused by using a conductive paste; and (b) firing the glass on which the conductive pattern is formed, and a blackened electromagnetic interference shielding glass.Type: ApplicationFiled: May 9, 2008Publication date: May 13, 2010Inventors: Sang-Ki Chun, In-Seok Hwang, Dong-Wook Lee, Seung-Wook Kim
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Publication number: 20100117503Abstract: A method of producing metal oxide nanoparticles includes the steps of (A) mixing a metal alkoxide, a surfactant, and a first organic solvent under an inert atmosphere to prepare a reaction solution, (B) mixing a reaction initiator prepared by mixing a catalyst with a solvent and the reaction solution under an inert atmosphere and heating to produce an intermediate product, and (C) mixing the intermediate product with a second organic solvent followed by heating the mixture of the intermediate product and the second organic solvent under an inert atmosphere to prepare metal oxide nanoparticles, the surfaces of which are coated with the surfactant.Type: ApplicationFiled: September 21, 2006Publication date: May 13, 2010Applicant: SONY CORPORATIONInventors: MIKIHISA MIZUNO, YUICHI SASAKI, Sung-Kil Lee, HITOSHI KATAKURA
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Patent number: 7710036Abstract: A display apparatus includes a plasma display panel (PDP) and a filter having a panel side facing a display surface of the PDP and an opposing viewer side facing away from the display surface. The filter includes an external light shield having a first base unit and first pattern units. The first pattern units absorb external light from the viewer side and are substantially parallel to a first axis. The filter includes an electromagnetic interference (EMI) shield overlapping the external light shield. The EMI shield includes a second base unit and second pattern units. The second pattern units are conductive and substantially parallel to a second axis. An interior angle between the first axis and the second axis can be within a range of 40 to 50 degrees.Type: GrantFiled: September 14, 2007Date of Patent: May 4, 2010Assignee: LG Electronics Inc.Inventors: Hong Rae Cha, Ji Hoon Sohn, Sam Je Cho, Woo Sung Jang, Woon Seo Shin
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Patent number: 7710005Abstract: An optical filter of a plasma display panel (PDP) and its fabrication method are disclosed. The optical filter includes an electromagnetic wave shield layer having a bias angle formed by cutting a mesh film along a predetermined direction.Type: GrantFiled: January 8, 2007Date of Patent: May 4, 2010Assignee: LG Electronics Inc.Inventors: Myeong Soo Chang, Hong Rae Cha, Byung Gil Ryu, Kyung Ku Kim, Young Sung Kim
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Publication number: 20100104290Abstract: An optical subassembly manufacturing method includes forming connecting electrodes and a piece of high-melting-point glass on a wiring substrate; positioning on and connecting to the connecting electrodes, an optoelectronic converting element; disposing on the piece of high-melting-point glass, a piece of low-melting-point glass having a melting point lower than the piece of high-melting-point glass; and fixing to the piece of low-melting-point glass, a protruding portion of a lens member further having a lens portion. The protruding portion has a shape matching that of the piece of high-melting-point glass, and relative positions of the protruding portion and the optical axis of the lens portion are determined to correspond to relative positions of the connecting electrodes and the piece of high-melting-point glass. The fixing includes fixing the protruding portion of the lens member to the piece of high-melting-point glass via surface tension generated by melting the piece of low-melting-point glass.Type: ApplicationFiled: December 22, 2009Publication date: April 29, 2010Applicant: FUJITSU LIMITEDInventors: Hiroyuki Nobuhara, Tetsuya Miyatake
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Patent number: 7687979Abstract: The invention provides a new PAR 38 lamp/reflector unit comprising a halogen lamp of suitable power, i.e. 100 watts/120 volts, coated with infrared film to reflect infrared energy produced by the halogen lamp back to the filament, making it more efficient; that meets and preferably exceeds the minimum EPACT efficacy standards, that exhibits a median life of at least about 3000 hours, while giving light output greater than 90% from the original value at about 1750 hours. Unit comprises a double-ended electric lamp (10) arranged in a reflector body (1) in a manner that first end portion (21) is at least partly situated in the neck-shaped portion (5), cavity (13) is situated within reflecting portion (2), the electric light source (16) is predominantly situated on the optical axis (4), a ceramic insert (42), beneath mounting ring (40) through which the seal of first end portion (21) is passed, is effective to dissipate heat from first end portion (21) during operation of the lamp.Type: GrantFiled: November 7, 2003Date of Patent: March 30, 2010Assignee: Koninklijke Philips Electronics N.V.Inventors: Jaime Huizar, Victor Jurado, Antonio Lopez
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Patent number: 7683533Abstract: An organic EL light-emitting apparatus includes a base, an organic EL device, a prism member, a polarizing member, and a phase member. The prism member, the polarizing member, and the phase member are adjacent to a light extraction side of the organic EL device. The prism member includes a plurality of unit prisms each having a triangular-column shape. The unit prisms are arranged such that their longitudinal directions are parallel to one another. The polarizing member is disposed further from the base than the prism member. The prism member has an apex angle between 90° to 140°.Type: GrantFiled: March 7, 2007Date of Patent: March 23, 2010Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Kitayama, Yoichi Osato
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Publication number: 20100060149Abstract: An organic light emitting display includes a base substrate, a driving transistor arranged on the base substrate, a first electrode electrically connected to the driving transistor, an organic light emitting layer arranged on the first electrode to generate a light, a second electrode arranged on the organic light emitting layer, an opposite substrate facing the base substrate and including micro-lenses to disperse the light generated by the organic light emitting layer, and a sub-electrode arranged on at least one of the micro-lenses, the sub-electrode making contact with the second electrode to be electrically connected to the second electrode.Type: ApplicationFiled: March 31, 2009Publication date: March 11, 2010Inventors: Young-Rok Song, Beohm-Rock Choi, Seong-Ho Kim
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Patent number: 7671520Abstract: A display device comprising at least one substrate(1, 2), a first and a second electrode(7, 8), a display medium (12) and an optically active layer(3, 5), wherein said optically active layer comprises a polarizer (3) and is arranged between said substrate and said display medium, and wherein said substrate is made of a birefringent material.Type: GrantFiled: August 25, 2005Date of Patent: March 2, 2010Assignee: Sumitomo Chemical Co., Ltd.Inventors: Henri Jagt, Bianca Maria Irma Van Der Zande, Emiel Peeters, Peter Albert Cirkel, Johannes Willem Hofstraat
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Patent number: 7646143Abstract: A self-light emitting device and an electrical appliance including the same are provided, in which extracting efficiency of light from a light emitting element, especially in an EL element, can be improved. A light scattering body formed by etching a transparent film is provided on an insulator so that the extracting efficiency of light can be improved, and the self-light emitting device with high efficiency of light emission can be provided.Type: GrantFiled: April 18, 2001Date of Patent: January 12, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 7644596Abstract: A short-arc discharge lamp capable of reducing the likelihood of cracks starting at an end face of a reflection mirror neck unit. Such cracks can be caused by heat generated from the discharge lamp. The short-arc discharge lamp includes a glass reflection mirror having a reflection surface of an even-order function on an inner surface thereof and formed by embossing. The short-arc discharge lamp is arranged with respect to an optical axis of the reflection mirror. A base of the discharge lamp is fixed to an insertion hole in a hollow neck unit formed in a bottom center of the reflection mirror. Furthermore, a base peripheral portion on the inner surface of the insertion hole in the hollow neck unit has a cylindrical shape with a narrow portion formed to extend from the cylindrical shape toward the reflection surface. Finally, an embossed portion extends from the narrow portion toward the reflection surface while diverging to contact the reflection surface.Type: GrantFiled: December 21, 2005Date of Patent: January 12, 2010Assignee: Iwasaki Electric Co., Ltd.Inventors: Makoto Ookahara, Kyouichi Maseki
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Patent number: 7619357Abstract: The present invention relates to an organic electroluminescent device. There is provided an organic electroluminescent device with a good luminescence property and high luminous efficiency in which the organic electroluminescent device has a diffraction grating 2 on the surface of the substrate 1 and an organic EL layer 5 including an emission layer between an anode 4 an a cathode 6 via an intermediate layer 3.Type: GrantFiled: May 24, 2004Date of Patent: November 17, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Yasuharu Onishi, Satoru Toguchi, Junichi Yamanari, Hitoshi Ishikawa, Tomohisa Gotoh, Atsushi Kamijo
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Patent number: 7602117Abstract: Provided are a display device and a display unit having higher light extraction efficiency. An optical distance L1 between a maximum light-emitting position of a light-emitting layer and a first end portion satisfies L1=tL1+a1 and (2tL1)/?=??1/(2?)+m1. An optical distance L2 between the maximum light-emitting position and a second end portion satisfies L2=tL2+a2 and (2tL2)/?=??2/(2?)+m2.Type: GrantFiled: March 30, 2007Date of Patent: October 13, 2009Assignee: Sony CorporationInventors: Jiro Yamada, Nobutoshi Asai, Shinichiro Tamura
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Publication number: 20090243460Abstract: An electric connection part between a bulb and a terminal is masked without using a special masking material when a lamp unit is produced through a primary injection step of molding a lamp main body and a lens part while using a movable mold and a fixed mold, a film forming step of covering the lamp main body with a film, and a secondary injection step of uniting the lamp main body and the lens part together with a resinous material. The bulb is incorporated through a step set between the primary injection step and the film forming step. In the state in which the bulb is incorporated in the lamp main body, the surface of the top of the bulb is covered with a film, and a part hidden by the shadow of the film is masked, and hence electric insulation properties are secured.Type: ApplicationFiled: March 14, 2006Publication date: October 1, 2009Applicant: OSHIMA ELECTRIC WORKS CO., LTD.Inventor: Takao Umezawa
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Patent number: 7595585Abstract: A pixel sub-structure for an electroluminescent display and a method for making the same. The sub-structure comprising: a color conversion layer; and an optical enhancement layer; wherein at least a portion of the color conversion layer is integrated with at least a portion of the optical enhancement layer.Type: GrantFiled: November 24, 2006Date of Patent: September 29, 2009Assignee: Ifire IP CorporationInventors: Abdul M. Nakua, Xingwei Wu, Maizhi Yang, Dan Daeweon Cheong, John Wesley Moore
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Patent number: 7595464Abstract: The present invention provides an infrared ray lamp being small in size and high in efficiency and having high versatility so at to be easily adaptable to various applications, and also provides a heating apparatus that uses the infrared ray lamp; in the infrared ray lamp according to the present invention, plural heating elements made of a carbonaceous substance having high emissivity and large radiation energy are disposed accurately at desired positions and desired angles, and sealed inside a glass tube; a heating apparatus is configured by using this infrared ray lamp as a heat source.Type: GrantFiled: November 12, 2004Date of Patent: September 29, 2009Assignee: Panasonic CorporationInventor: Masanori Konishi
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Patent number: 7589461Abstract: The invention is directed to an organic electroluminescent (EL) display device having an improved light extracting efficiency due to a photonic crystal layer formed proximate one side of a stack. Among other elements, the stack may include a first electrode formed on a substrate, an organic light emitting layer formed above the first electrode, and a second electrode formed above the organic light emitting layer. Additionally, the photonic crystal layer may be configured to correspond to a wavelength of colored light. An organic EL display device having an improved light extracting efficiency may be manufactured using a thermal transfer donor film to adhere the photonic crystal layer to the stack.Type: GrantFiled: November 19, 2004Date of Patent: September 15, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jin-Woo Park, Ho-Kyoon Chung, Jang-Hyuk Kwon, Mu-Hyun Kim, Seung-Yong Song, Young-Rag Do, Yoon-Chang Kim, Tae-Min Kang, Seong-Taek Lee
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Patent number: 7583013Abstract: Provided is an electrodeless sulfur lamp including a power supply supplying electrical power, a transparent bulb which has a space inside it, with sulfur being contained in the space, and a coil connected to the power supply, which is wound around an outside surface of the transparent bulb and which induces electric discharge by combining magnetic fields. The exclusion of the magnetron in the sulfur lamp increase a system efficacy and saves a cost for the magnetron. Also, it is possible to prevent the coil from blocking light emitted from the main electric discharge sphere 11, because the coil is not wound around the main electric discharge sphere.Type: GrantFiled: September 27, 2006Date of Patent: September 1, 2009Assignee: LG Electronics Inc.Inventor: Byeong-Ju Park
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Patent number: 7576478Abstract: The invention relates to light emitting devices (2) with variable output color. More specifically, the inventions provides a color conversion cell (10) which can be positioned in front of a light source (4) in order to generate other color or color temperatures. Typically the light source is a light emitting diode (LED) which is power efficient but emits in a narrow and fixed spectra. The new colors are generated by photoluminescence in fluorescent dyes contained in the cell. The color converting of the cell is electrically controllable, preferably by controlling the orientation, density or distribution of the fluorescent dyes, or by controlling a pathlength of the light in the cell.Type: GrantFiled: April 6, 2005Date of Patent: August 18, 2009Assignee: Koninklijke Philips Electronics N.V.Inventor: Rifat Ata Mustafa Hikmet
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Patent number: 7575343Abstract: A PAR lamp (10) has a body (12) with an internal reflector surface (14) disposed about a longitudinal axis (16). A cavity (18) is provided at one end (20) of the body (12) and an arc discharge tube (22) that provides a substantially spherical light source is positioned in the cavity (18) and disposed on the longitudinal axis (16). A cover receiving opening (24) is provided at a second end (26) of the body and a cover (27) closes the cover receiving opening (24). A plurality of spiral facets (28) is formed on the internal reflector surface (14), the plurality of spiral facets (28) being sufficient in number to increase the maximum beam candle power and decrease the beam angle when compared to faceted lamps having a lesser number of facets. The number of facets is equal to or greater than 75 and preferably is 100.Type: GrantFiled: May 17, 2007Date of Patent: August 18, 2009Assignee: Osram Sylvania Inc.Inventors: Jason J. Li, Harold Rothwell, Jr., David M. Hrubowchak
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Patent number: 7567025Abstract: Disclosed is a plasma display panel (PDP) apparatus having a film-type filter and a filter support structure for supporting and fixing the film-type filer to a panel of the PDP apparatus. The PDP apparatus includes a panel divided into a display region and a non-display region, and a film-type filter electrically connected to the non-display region of the panel via a ground layer or a grounding member. By such construction, the filter can be grounded and supported. The film-type filter has a main body part and a projected part which is provided in such a manner that at least one film among a plurality of films constituting the main body part are extended from an edge portion of the main body part. The projected part of the filter is electrically connected to a heat sink frame disposed on a rear side of the panel so that charges accumulated on the filter can be discharged out.Type: GrantFiled: December 22, 2005Date of Patent: July 28, 2009Assignee: LG Electronics Inc.Inventor: Yu Park
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Publication number: 20090179543Abstract: A display device comprises a substrate and a laminate structure formed on the substrate and comprising a plurality of layers including a display region. The laminate structure has a recessed/projected portions at least one of an outermost surface of display side and an interface between the layers. The projected portions of the recessed/projected portions have a mean circle-equivalent diameter ranging from 50 nm to 250 nm with the standard deviation of circle-equivalent diameter of the projected portions being within the range of 10 to 50% of the mean circle-equivalent diameter, and a mean height ranging from 100 nm to 500 nm with the standard deviation of height being within the range of 10 to 50% of the mean height. The projected portions have a circularity coefficient ranging from 0.6 to 1, and an area ratio ranging from 20 to 75%.Type: ApplicationFiled: March 24, 2009Publication date: July 16, 2009Inventors: Akira Fujimoto, Koji Asakawa
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Patent number: 7553056Abstract: A backlight unit that converts ultraviolet light emitted from light-emitting lamps into visible light is disclosed. The backlight unit also reflects the visible light, thus achieving improved luminance. The backlight unit includes a plurality of light-emitting lamps arranged substantially in parallel, an outer case that fixes and supports the light-emitting lamps, and a reflection sheet disposed within the outer case and containing a fluorescent material that converts ultraviolet light into visible light and reflects the visible light.Type: GrantFiled: June 29, 2006Date of Patent: June 30, 2009Assignee: LG Display Co., Ltd.Inventor: Jung Ill Cho
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Publication number: 20090160303Abstract: A geometrically shaped photonic crystal structure consisting of alternating layers of thin films is heated to emit light. The structure may include index matching layers or a cavity layer to enhance emissions. The layer thicknesses of the structure may be spatially varied to modify the emission spectrum versus emission angle. The self-focusing structure may be fabricated into a convex electrically heated wire filament light bulb, a concave visible thermophotovoltaic emitter, a concentric directional heat exchanger, an electronic display, or a variety of irregularly shaped remotely read temperature or strain sensors.Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Inventor: Robert A. Marshall
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Publication number: 20090134762Abstract: An electric discharge lamp is provided. The electric discharge lamp includes a ceramic luminous tube; electrodes held by the ceramic luminous tube; a first outer tube which is made of glass and covers the ceramic luminous tube to form a first space between the ceramic luminous tube and the first outer tube; and a second outer tube which is made of glass and covers the first outer tube to form a second space between the first outer tube and the second outer tube. A vacuum is formed in the first space.Type: ApplicationFiled: October 29, 2008Publication date: May 28, 2009Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Takuya SERITA, Toru ITO
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Patent number: 7538482Abstract: A BM (black matrix) structure has a semiconductor layer and a light-shielding layer. The semiconductor layer has a first surface and a second surface. The light-shielding layer is disposed on the first surface of the semiconductor layer, and the second surface is an incident plane of environmental light.Type: GrantFiled: February 8, 2006Date of Patent: May 26, 2009Assignee: AU Optronics Corp.Inventors: Shi-Hao Li, Ming-Chang Shih
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Patent number: 7535170Abstract: A light-emitting device is disclosed with improved luminance even with increased arrangement density of a reflector regardless of a light-emitting region. The disclosed device includes a reflector between an electrode for extracting light from a layer including a luminescent material, which serves as a light-emitting region of a light-emitting element, and an exterior space (air). In addition, a light-extraction efficiency can be improved by setting an angle made by a surface of the reflector, which faces the light-emitting element, and a side surface of the reflector (hereinafter, referred to as a slope angle of the reflector) in a predetermined range as for a shape of the reflector.Type: GrantFiled: October 3, 2006Date of Patent: May 19, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Gen Fujii
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Publication number: 20090121601Abstract: Provided herein is a light-emitting apparatus which is capable of causing the light emitted at the entire face of a fluorescent material to be exteriorly emitted with no interference and with enhanced light emission efficiency, thereby attaining an exteriorly radiated high brightness light. A cathode electrode 10 is mounted on a periphery of a transmission member 30, the anode electrode 15 is also mounted on a domain opposite to a light transmission member 30, and the surface 16a of the fluorescent material 16 to be mounted on a top layer of the anode electrode 15 is formed with a concave face.Type: ApplicationFiled: November 6, 2008Publication date: May 14, 2009Applicant: Fuji Jukogyo Kabushiki KaishaInventors: Hisaya TAKAHASHI, Toshiya ARAKAWA, Atsushi NAMBA, Mikio ONO
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Publication number: 20090108726Abstract: An infrared light source has a filament fabricated on a first substrate in the shape of a microbridge and energizes the filament so as to generate heat, thereby causing the filament to emit infrared radiation. The infrared light source has a second substrate that is bonded to the first substrate and seals the filament, and feedthrough electrodes that lead electrodes of the filament to the outside of the first substrate. Thereby, the function of the package is imparted to the device itself, to thus realize a highly-reliable device at low cost.Type: ApplicationFiled: October 23, 2008Publication date: April 30, 2009Applicant: YOKOGAWA ELECTRIC CORPORATIONInventors: Tetsuya WATANABE, Hitoshi HARA, Naoki KISHI
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Patent number: 7514867Abstract: An LED lamp according to the present invention includes: at least one LED chip 12 that is mounted on a substrate 11; a phosphor resin portion 13 that covers the LED chip 12; a lens 22 to act on the outgoing light of the phosphor resin portion 13; and an optical diffusion layer (light-transmissive resin portion 20), which is arranged between the phosphor resin portion 13 and the lens 22 and in which particles to scatter the light are dispersed.Type: GrantFiled: April 8, 2005Date of Patent: April 7, 2009Assignee: Panasonic CorporationInventors: Tadashi Yano, Kiyoshi Takahashi, Masanori Shimizu
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Patent number: 7513815Abstract: A reflector lamp has a generally parabolic shaped housing (12) with an interior surface coated with a layer (14) of silver having a protective layer (16) of a stable protective material, such as silica, disposed thereon. The thickness of the protective layer is selected such that at least one of the following relationships is satisfied: a color correction temperature of the lamp is no less than about 60 K below that of the light source, and a % reflectance of the reflective interior surface is no less than about 3% below that of an equivalent reflective interior surface without the protective layer.Type: GrantFiled: August 1, 2003Date of Patent: April 7, 2009Assignee: General Electric CompanyInventors: Rajasingh Israel, Ashfaqui Islam Chowdhury, Tianji Zhao
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Patent number: 7511407Abstract: An optical filter of a plasma display panel (PDP) and its fabrication method are disclosed. The optical filter includes an electromagnetic wave shield layer having a bias angle formed by cutting a mesh film along a predetermined direction.Type: GrantFiled: May 25, 2004Date of Patent: March 31, 2009Assignee: LG Electronics, Inc.Inventors: Myeong Soo Chang, Hong Rae Cha, Byung Gil Ryu, Kyung Ku Kim, Young Sung Kim
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Patent number: 7511419Abstract: A luminescent panel includes a transparent substrate, a first transparent electrode provided on the transparent substrate, a luminescent layer provided on the first transparent electrode, and a second transparent electrode provided on the luminescent layer. A reflecting film provided on the second electrode, reflects light emitted from the luminescent layer through the second transparent electrode and causes the reflected light to outwardly emit from the transparent substrate.Type: GrantFiled: May 14, 2002Date of Patent: March 31, 2009Assignee: Casio Computer Co., Ltd.Inventors: Manabu Takei, Tomoyuki Shirasaki
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Publication number: 20090072693Abstract: A white light-emitting microcavity light-emitting diode device, comprising: a) A reflective electrode and a semi-transparent electrode formed over a substrate and an unpatterned white-light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned white-light-emitting layer forming an optical cavity. Either the reflective or semi-transparent electrode is patterned to form independently-controllable light-emitting sub-pixel elements. b) Color filters are formed over a side of the semi-transparent electrodes opposite the unpatterned white light-emitting-layer in correspondence with the independently-controllable light-emitting elements to form colored sub-pixels. At least one independently-controllable light-emitting element has at least two commonly-controlled portions that together emit substantially white light to form a white sub-pixel.Type: ApplicationFiled: September 17, 2007Publication date: March 19, 2009Inventors: Ronald S. Cok, Paul J. Kane, Michael E. Miller