With Phosphor Embedding Material Patents (Class 313/502)
  • Patent number: 8815418
    Abstract: A compound for an organic photoelectric device, organic photoelectric device, and a display device, the compound being represented by the following Chemical Formula 1:
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: August 26, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Hyung-Sun Kim, Ho-Jae Lee, Eui-Su Kang, Nam-Heon Lee, Young-Sung Park, Eun-Sun Yu, Mi-Young Chae
  • Patent number: 8810123
    Abstract: An inorganic electroluminescence device has a structure including a phosphor layer sandwiched between a first electrode and a second electrode; and a semiconductor structure in which N-type semiconductors and a P-type semiconductor, made of inorganic semiconductor materials, are joined to form an NPN type structure. The phosphor is made of an inorganic substance. The first electrode is to be a cathode and is formed on an insulating glass substrate. The second electrode is to be an anode and is disposed opposite the first electrode. The semiconductor structure is disposed between the cathode that is the first electrode and the phosphor layer.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: August 19, 2014
    Assignee: Kohundo Printing Company Ltd.
    Inventor: Takuyoshi Ishimura
  • Patent number: 8801205
    Abstract: An illumination module includes a color conversion cavity with a first interior surface having a first wavelength converting material and a second interior surface having a second wavelength converting material. A first LED is configured to receive a first current and to emit light that preferentially illuminates the first interior surface. A second LED is configured to receive a second current and emit light that preferentially illuminates the second interior surface. The first current and the second current are selectable to achieve a range of correlated color temperature (CCT) of light output by the LED based illumination device.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: August 12, 2014
    Assignee: Xicato, Inc.
    Inventors: Gerard Harbers, Serge J. A. Bierhuizen, Hong Luo
  • Patent number: 8801968
    Abstract: The invention relates to surface-modified phosphor particles based on luminescent particles which comprise at least one luminescent compound, where (Ca,Sr,Ba)2SiO4 and other silicates having one or more activator ions, such as Eu, Ce and Mn, are excluded as luminescent compounds, and where at least one inorganic layer comprising oxides/hydroxides of Si, Al, Zr, Zn, Ti and/or mixtures thereof and an organic coating of organosilanes or polyorganosiloxanes (silicones) and/or mixtures thereof are applied to the luminescent particles, and to a production process.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: August 12, 2014
    Assignee: Merck Patent GmbH
    Inventors: Ralf Petry, Reinhold Rueger, Tim Vosgroene, Holger Winkler
  • Patent number: 8803416
    Abstract: An organic light emitting display (OLED) apparatus and a method of manufacturing the same, the OLED apparatus including: a substrate; an active layer formed on the substrate; a gate electrode insulated from the active layer; source and drain electrodes insulated from the gate electrode and electrically connected to the active layer; a pixel defining layer formed on the source and drain electrodes, having an aperture to expose one of the source and drain electrodes; an intermediate layer formed in the aperture and comprising an organic light emitting layer; and a facing electrode which is formed on the intermediate layer. One of the source and drain electrodes has an extension that operates as a pixel electrode. The aperture exposes the extended portion. The intermediate layer is formed on the extended portion.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: August 12, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do-Hyun Kwon, Il-Jeong Lee, Choong-Youl Im, Dae-Hyun No, Cheol-Ho Yu
  • Patent number: 8796913
    Abstract: An electro-optical device includes an effective display region including a pixel, the pixel including a first electrode, a second electrode, and a light-emitting layer between the first electrode and the second electrode; and a wiring line connected to the second electrode at a position to the periphery of the effective display region, the wiring line including a first wiring layer and a second wiring layer that are electrically connected to each other and that overlap each other, the first wiring layer and the second wiring layer both extending in a direction in which an edge of the effective display region extends, the first wiring layer and the second wiring layer extending in the direction a distance that is longer than a distance in which the edge of the effective display region extends in the direction.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: August 5, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Furusawa, Mitsuru Kuribayashi, Hayato Nakanishi, Toshimitsu Hirai
  • Patent number: 8791631
    Abstract: A light emitting device is described. The light emitting device includes a base; a light emitting diode supported by the base; a first layer spaced apart from the light emitting diode and including a light emitting material, the first layer having a refractive index nfirst—layer; a transparent optic having a refractive index noptic that is greater than or equal to nfirst—layer, the transparent optic having a convex surface facing away from the light emitting diode and the first layer being positioned between the transparent optic and the light emitting diode. A gap between the light emitting diode and the first layer has a refractive index ngap that is less than nfirst—layer, and the convex surface has a radius of curvature sufficiently large relative to a dimension of the first layer to eliminate total internal reflection of light entering the transparent optic from the first layer.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: July 29, 2014
    Assignee: Quarkstar LLC
    Inventors: Steven C. Allen, Andrew J. Steckl
  • Patent number: 8790793
    Abstract: Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1-Y1??Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: July 29, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Noriko Yasukawa, Hiroshi Kita, Eisaku Katoh, Tatsuo Tanaka, Shinya Otsu, Rie Katakura, Hidekane Ozeki, Hideo Taka
  • Patent number: 8783887
    Abstract: A color/color temperature tunable light emitting device comprises: an excitation source (LED) operable to generate light of a first wavelength range and a wavelength converting component comprising a phosphor material which is operable to convert at least a part of the light into light of a second wavelength range. Light emitted by the device comprises the combined light of the first and second wavelength ranges. The wavelength converting component has a wavelength converting property (phosphor material concentration per unit area) that varies spatially. The color of light generated by the source is tunable by relative movement of the wavelength converting component and excitation source such that the light of the first wavelength range is incident on a different part of the wavelength converting component and the generated light comprises different relative proportions of light of the first and second wavelength ranges.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: July 22, 2014
    Assignee: Intematix Corporation
    Inventors: James Caruso, Charles O. Edwards
  • Patent number: 8785951
    Abstract: An optoelectronic component (1) is specified, comprising a connection carrier (2) on which a radiation-emitting semiconductor chip (3) is arranged, and a conversion element (4) fixed to the connection carrier (2). The conversion element (4) spans the semiconductor chip (3) in such a way that the semiconductor chip (3) is surrounded by the conversion element (4) and the connection carrier (2), and the conversion element (4) consists of one of the following materials: ceramic, glass ceramic.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: July 22, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Ralph Wirth
  • Patent number: 8785952
    Abstract: A light emitting device is disclosed. The light emitting device includes a first electrode and a second electrode, which have different areas, thereby achieving enhanced bonding reliability.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: July 22, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventor: Dongwook Park
  • Patent number: 8786177
    Abstract: An object of the present invention is to provide an organic EL element including a plurality of light-emitting layers which each emit light having a different peak wavelength, and having excellent light-emitting performances such as light-emitting intensity with a simple structure.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: July 22, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Yoshinobu Ono
  • Patent number: 8786175
    Abstract: A lighting device 100, a lamp and a luminaire is provided. The light device 100 emits a first color distribution predominantly in a first direction and a second color distribution predominantly in a second direction. The lighting device comprises a light exit window, a light source 118, a light distributing layer 108, and a luminescent material. Light 104, 106 is emitted into the ambient of the lighting device through the light exit window. The light exit window has a first part 110 for an escape of light of the first color distribution and a second part 102 for an escape of light of the second color distribution. The second part 102 is different from the first part 110. The light source emits light of a predefined color distribution. The predefined color distribution comprises light of a first color 106. The light distributing layer 108 partly reflects or backscatters impinging light and partly transmits impinging light.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: July 22, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet
  • Patent number: 8779660
    Abstract: An illumination device for enhancing plant growth includes a substrate unit, a light-emitting unit, a current-limiting unit, and a control unit. The substrate unit includes a substrate body. The light-emitting unit, the current-limiting unit, and the control unit are disposed on the substrate body. The light-emitting unit includes a first light-emitting module, a second light-emitting module, and a third light-emitting module. The current-limiting unit includes a first current-limiting chip electrically connected to the first light-emitting module, a second current-limiting chip electrically connected to the second light-emitting module, and a third current-limiting chip electrically connected to the third light-emitting module.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 15, 2014
    Assignee: Paragon Semiconductor Lighting Technology Co., Ltd.
    Inventors: Chia-Tin Chung, Shih-Neng Tai
  • Patent number: 8766517
    Abstract: The claimed invention was made by, on behalf of, and/or in connection with one or more of the following parties to a joint university corporation research agreement: Princeton University, The University of Southern California, The University of Michigan and Universal Display Corporation. The agreement was in effect on and before the date the claimed invention was made, and the claimed invention was made as a result of activities undertaken within the scope of the agreement.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: July 1, 2014
    Assignee: Universal Display Corporation
    Inventors: Jeffrey Silvernail, Jason Paynter, Kamala Rajan
  • Patent number: 8764505
    Abstract: A luminescent composition can efficiently provide an inorganic electroluminescent sheet with a high productivity at low costs. The composition has a desired light transmittance (transparency) when no electric voltage is applied to it. The composition includes an inorganic electroluminescent substance and a binder resin. A content of the inorganic electroluminescent substance is at least 0.5 part and less than 100 parts by mass on the basis of 100 parts by mass of the binder resin. The inorganic electroluminescent sheet includes a first transparent substrate; a first transparent electrode; the inorganic electroluminescent layer of the luminescent composition; a first transparent electrode; and a second transparent substrate, successively laminated in this order. The inorganic electroluminescent sheet has a light transmittance of 60% or more, measured at a wavelength of 550 nm under a non-light emitting condition.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: July 1, 2014
    Assignee: Lintec Corporation
    Inventors: Satoshi Naganawa, Takashi Morioka, Naoki Taya, Takeshi Kondo, Kazue Saito, Yuko Iwamoto, Shinichi Hoshi, Yumiko Matsubayashi
  • Patent number: 8754852
    Abstract: Disclosed are a light guide plate for a non-contact type coordinate input system, a system including the same, and a non-contact type coordinate input method using the same. More particularly, the present invention relates to a light guide plate for a non-contact type coordinate input system, which eliminates inconvenience of a conventional contact-type coordinate input system inputting coordinates through direct contact, and which can reduce use of sensors and optical loss as much as possible. The present invention also relates to a system including the same, and a non-contact type coordinate input method using the same.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: June 17, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Yeon-Keun Lee, Sang-Hyun Park, Hyun-Seok Choi, Jung-Doo Kim, Su-Rim Lee
  • Patent number: 8746922
    Abstract: LED based illumination modules are realized that are visually color matched to light sources not based on LEDs based on visually matched color spaces. A visually matched color space is employed to both instrumentally and visually match an LED based light source with a light source not based on LEDs. In one aspect, an LED based illumination module is realized to achieve a target color point in a visually matched color space within a predetermined tolerance. In another aspect, an LED based illumination module is realized to visually match a light source not based on LEDs. A target color point in the CIE 1931 XYZ color space is derived based at least in part on the spectrum of the visually matched LED based illumination module. LED based illumination modules visually matched to light sources not based on LEDs are realized based on the derived target color point.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: June 10, 2014
    Assignee: Xicato, Inc.
    Inventors: Gerard Harbers, Raghuram L. V. Petluri
  • Patent number: 8740413
    Abstract: An optical device includes a light source with at least two radiation sources, and at least two layers of wavelength-modifying materials excited by the radiation sources that emit radiation in at least two predetermined wavelengths. Embodiments include a first plurality of n radiation sources configured to emit radiation at a first wavelength. The first plurality of radiation sources are in proximity to a second plurality of m of radiation sources configured to emit radiation at a second wavelength, the second wavelength being shorter than the first wavelength. The ratio between m and n is predetermined. The disclosed optical device also comprises at least two wavelength converting layers such that a first wavelength converting layer is configured to absorb a portion of radiation emitted by the second radiation sources, and a second wavelength converting layer configured to absorb a portion of radiation emitted by the second radiation sources.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: June 3, 2014
    Assignee: Soraa, Inc.
    Inventors: Michael Krames, Troy Trottier, Frank Steranka, William Houck, Arpan Chakraborty
  • Patent number: 8742655
    Abstract: Certain example embodiments relate to improved lighting systems and/or methods of making the same. In certain example embodiments, a lighting system includes a glass substrate with one or more apertures. An LED or other light source is disposed at one end of the aperture such that light from the LED directed through the aperture of the glass substrate exits the opposite end of the aperture. Inner surfaces of the aperture have a mirroring material such as silver to reflect the emitted light from the LED. In certain example embodiments, a remote phosphor article or layer is disposed opposite the LED at the other end of the aperture. In certain example embodiment, a lens is disposed in the aperture, between the remote phosphor article and the LED.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: June 3, 2014
    Assignee: Guardian Industries Corp.
    Inventors: Vijayen S. Veerasamy, Jemssy Alvarez
  • Patent number: 8741675
    Abstract: Provided are a mask for an application of paste and a method of manufacturing a semiconductor light emitting device by using the same. The method includes preparing a light emitting structure including first and second conductive semiconductor layers and an active layer disposed therebetween, which has at least one electrode formed on a surface of the light emitting structure; disposing a mask having an open part exposing a portion of the surface of the light emitting structure therethrough and a recess part corresponding the electrode in a region thereof on a surface of the light emitting structure; and applying wavelength conversion material-containing paste to the surface of the light emitting structure through the open part.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: June 3, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheol Jun Yoo, Seong Jae Hong
  • Patent number: 8736162
    Abstract: A flexible display panel including: a flexible substrate including a first region, second regions that extend from the first region and that have a curved surface, and a third region folded towards the second regions; a first display region in the first region of the flexible substrate; a second display region in the second regions of the flexible substrate; a plurality of non-display regions outside the first display region or the second display regions, wherein at least one of the plurality of non-display regions is in the third region of the flexible substrate; and an encapsulation member for encapsulating the first display region and the second display regions.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: May 27, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Un Jin, Woo-Jong Lee, Yang-Wan Kim, Young-Sik Kim, Jun-Sang Lyu, Sang-Min Kim
  • Patent number: 8733968
    Abstract: A lighting device comprising first and second groups of solid state light emitters, which emit light having peak wavelength in ranges of 430 to 480 nm, and first and second groups of lumiphors which emit light having dominant wavelength in the range of 555 to 585 nm. In some embodiments, if current is supplied to a power line, a combination of (1) light exiting the lighting device emitted by the first group of emitters, and (2) light exiting the lighting device emitted by the first group of lumiphors would have a correlated color temperature which differs by at least 50 K from a correlated color temperature which would be emitted by a combination of (3) light exiting the lighting device which was emitted by the second group of emitters, and (4) light exiting the lighting device which was emitted by the second group of lumiphors.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: May 27, 2014
    Assignee: Cree, Inc.
    Inventors: Antony Paul Van De Ven, Gerald H. Negley
  • Patent number: 8721098
    Abstract: The invention relates to an illumination system having a light scattering and conversion plate comprising a non-converting but scattering layer and a thinner converting layer. By separating scattering and conversion, the characteristics of the illumination system can greatly be increased.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: May 13, 2014
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Hans-Helmut Bechtel, Matthias Heidemann, Peter J. Schmidt
  • Patent number: 8723411
    Abstract: A photoluminescent sheet is disclosed. A photoluminescent sheet that includes a matrix resin layer, which is a thermosetting resin; a phosphor, which is included in the matrix resin layer and which converts the wavelength of light emitted from a blue LED; a curing agent, which is included in the matrix resin layer and which cures liquid thermosetting resin; and an additive, which is included in the matrix resin layer and which disperses the phosphor uniformly within the matrix resin layer, can implement white light from light having wavelengths corresponding to blue color.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 13, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Choong-Yong Sohn, Young-Joo Ahn, Young-Wook Ko
  • Patent number: 8723409
    Abstract: A light emitting device includes a housing member having a recess open upward, a light emitting element arranged in the recess and having a light emitting layer of a semiconductor, and a wavelength converting member arranged in the recess and capable of absorbing a part of light emission from the light emitting element and emitting light of different wavelength. The light emitting device is capable of mixing the light emission from the light emitting element and the light emission from the wavelength converting member to emit light from the opening of the recess. A light scattering surface for scattering light emission from the light emitting element and wavelength converting member is formed on at least part of the side surface of the recess. The light emitting element and the wavelength converting member are spaced apart from the side and bottom surfaces of the recess, and the side surfaces of the light emitting element are exposed without being covered with the wavelength converting member.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: May 13, 2014
    Assignee: Nichia Corporation
    Inventor: Masatsuga Ichikawa
  • Patent number: 8723417
    Abstract: An object of the present invention is to provide such a sealing structure that a material to be a deterioration factor such as water or oxygen is prevented from entering from external and sufficient reliability is obtained in a display using an organic or inorganic electroluminescent element. In view of the above object, focusing on permeability of an interlayer insulating film, deterioration of an electroluminescent element is suppressed and sufficient reliability is obtained by preventing water entry from an interlayer insulating film according to the present invention.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: May 13, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kaoru Tsuchiya, Aya Anzai, Masayuki Sakakura, Masaharu Nagai, Yutaka Matsuda
  • Patent number: 8716952
    Abstract: A lighting device comprising first, second and third groups of solid state light emitters, the first group emitting light having a dominant wavelength of 430 to 490 nm, the second group at 525 to 575 (in some devices 540 to 575 nm), the third group at 610 to 640 nm. In some devices, wavelength of light from emitters in first and second groups, and light from second and third groups, differs by at least 70 nm. Some devices emit light having CRI Ra of at least 70 when first, second and third groups of emitters are illuminated. Also, a lighting arrangement comprising first, second and third groups as above, in addition to a fourth emitter emitting light of dominant wavelength outside the ranges for the first, second and third groups, and not more than 10 nm different from a dominant wavelength of a color on an item to be illuminated.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: May 6, 2014
    Assignee: Cree, Inc.
    Inventor: Antony Paul Van de Ven
  • Patent number: 8710731
    Abstract: A method of patterning a color conversion layer for an organic EL device is provided together with a method of manufacturing a multiple color emitting organic EL display using the patterning method. The patterning method includes forming the color conversion layer on a base having an organic layer and patterning the color conversion layer by carrying out a thermal cycle nano imprint technique.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: April 29, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Naoyuki Kanai
  • Patent number: 8710740
    Abstract: A phosphor adhesive sheet includes a phosphor layer containing a phosphor and an adhesive layer laminated on one surface in a thickness direction of the phosphor layer. The adhesive layer is formed of a silicone resin composition having both thermoplastic and thermosetting properties.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: April 29, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Toshitaka Nakamura, Hiroyuki Katayama, Haruka Fujii, Hironaka Fujii
  • Patent number: 8704439
    Abstract: A blue light-emitting phosphor having an elemental formula of Sr3-xMgSi2O8:Eux (wherein x represents a value in the range of 0.008 to 0.110), a merwinite crystal structure and a crystal lattice strain of 0.080% or less as determined from an X-ray diffraction pattern at diffraction angle 2? of 20-130° by the Le Bail method, wherein the X-ray diffraction pattern is determined using a CuK? ray having an incident angle of ?, is used advantageously as a blue light-emitting material for a light-emitting device which comprises a semiconductor light-emitting element capable of emitting a light having a wavelength of 350-430 nm upon application of an electrical current, such as a white light-emitting LED lamp, and a blue light-emitting material capable of emitting a blue light upon excitation with a light emitted by the semiconductor light-emitting element.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: April 22, 2014
    Assignee: Ube Material Industries, Ltd.
    Inventors: Toru Inagaki, Masato Yamauchi, Seiji Noguchi, Kouichi Fukuda, Akira Ueki
  • Patent number: 8704442
    Abstract: A light emitting diode (LED) bulb configured to scatter certain wavelengths of light. The LED bulb includes a base having threads, a bulb shell, at least one LED, and a plurality of particles disposed within the bulb shell. The plurality of particles has a first and second set of particles. The first set of particles is configured to scatter short wavelength components of light emitted from the at least one LED and has particles with an effective diameter that is a fraction of the dominant wavelength of the light emitted from the at least one LED. The second set of particles is configured to scatter light emitted from the at least one LED, and has particles with an effective diameter equal to or greater than the dominant wavelength of the light emitted from the at least one LED.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 22, 2014
    Assignee: Switch Bulb Company, Inc.
    Inventors: Ronald J. Lenk, Carol Lenk
  • Patent number: 8704244
    Abstract: In order to provide an LED light emitting device that can easily control a color temperature of white light, the LED light emitting device is provided with a plurality of types of light emitting parts that: respectively have LED elements that emit ultraviolet radiation or violet color visible light, and phosphors that absorb the ultraviolet radiation or violet color visible light to emit colored light; and emit the colored light, wherein: the colored light emitted by the plurality of types of light emitting parts become white light when all mixed with each other; the LED elements of the plurality of types of light emitting parts are all the same ones, and mounted on a single base material; and two or more light emitting parts overlap with each other in their parts.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: April 22, 2014
    Assignee: CCS, Inc.
    Inventors: Hirokazu Suzuki, Jun Konishi, Yuichiro Tanaka, Kenji Yoneda
  • Patent number: 8703303
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in the luminous efficiency, fully secured of the driving stability, and of a simple structure. The organic EL device comprises a light-emitting layer between an anode and a cathode piled one upon another on a substrate and the said light-emitting layer comprises (A) a phosphorescent dopant whose emission peak wavelength is longer than 600 nm and (B) a host material. The host material contains at least two kinds of compounds selected from two or more kinds of derivatives included in (b1) N-substituted indolocarbazole derivatives, (b2) derivatives of 8-hydroxyquinoline aluminum complex, and (b3) bisindolocarbazole derivatives.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: April 22, 2014
    Assignees: Nippon Steel & Sumikin Chemical Co., Ltd., Pioneer Corporation, Tohoku Pioneer Corporation
    Inventors: Toshihiro Yamamoto, Takahiro Kai, Masaki Komori, Taishi Tsuji, Yasuhiro Takahashi, Toshinao Yuki, Yusuke Nakajima, Tomoaki Hoshi, Jiro Asaka
  • Patent number: 8698386
    Abstract: A wavelength conversion structure comprises a phosphor layer comprising a first part and a second part formed on the first part, wherein the first part and the second part have a plurality of pores, a first material layer formed in the plurality of pores of the first part, a second material layer formed in the plurality of pores of the second part and a plurality of phosphor particles, wherein the plurality of phosphor particles is distributed in the first material layer and the second material layer.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: April 15, 2014
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Yi-Jui Hung, Meng-Yuan Hong, Ming-Chi Hsu
  • Patent number: 8690628
    Abstract: Disclosed are a method for fabrication of a thin film phosphor, a thin film phosphor and a product using the same. The thin film phosphor is fabricated by adsorbing a raw material to a surface of a substrate simultaneously with diffusing the same or, otherwise, depositing the raw material on the substrate and heating the same, so as to diffuse the raw material from the surface of the substrate into the substrate wherein the substrate contains at least one selected from constitutional elements of the phosphor. The fabricated thin film phosphor has a constitutional composition continuously varied to gradually come close to a constitutional composition of the substrate when the constitutional elements of the phosphor are diffused from a surface to an inner side of the substrate.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: April 8, 2014
    Assignee: Lstone Co., Ltd.
    Inventors: Eun-Wook Lee, Jong-Soo Kim, Je-Hong Park
  • Patent number: 8680764
    Abstract: Provided is a method of manufacturing an organic EL device, wherein a device which has a cathode, an anode facing the cathode, and an organic layer is disposed between the cathode and the anode is provided, a pulsed laser is transmitted through the cathode and is irradiated to the organic layer, and a conductive part having an electrical resistance value lower than that of the organic layer is formed in the organic layer.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: March 25, 2014
    Assignee: Panasonic Corporation
    Inventor: Shinsuke Komatsu
  • Patent number: 8669699
    Abstract: A planar light-emitting module includes a planar substrate applied with a reflection film, a light-emitting element mounted on the reflection film side of the substrate, a first transparent resin layer disposed to encapsulate at least the light-emitting element, and a second transparent resin layer disposed to sandwich an air layer between the second transparent resin layer and the first transparent resin layer. A phosphor for converting the wavelength of light radiated from the light-emitting element is disposed by dispersion in the first and second transparent resin layers and the phosphor is selected such that when the second transparent resin layer is viewed from the outside, pseudo-white light is observed.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: March 11, 2014
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hisayoshi Daicho, Kazuhiro Ito
  • Patent number: 8669698
    Abstract: According to an embodiment, a wavelength converter includes a resin allowing light emitted from a light source to pass through, a plurality of particle-shaped fluorescent substances dispersed in the resin, and fillers dispersed in the resin with a particle diameter smaller than the fluorescent substance. The fluorescent substances absorb the light emitted from the light source and emits fluorescence having a wavelength different from a wavelength of the light emitted from the light source; and a distribution of the fillers has higher density near the fluorescent substance than a density at a middle position between the fluorescent substances adjacent to each other.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: March 11, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Miyoko Shimada, Akhiro Kojima, Yosuke Akimoto, Hideyuki Tomizawa, Hideto Furuyama, Yoshiaki Sugizaki
  • Patent number: 8664851
    Abstract: Provided is an electronic device including a substrate, a pixel located on the substrate and defined by a bank layer, and a multilayer protection film placed on the pixel and composed of multiple layers including at least one organic layer. The thickness of the first organic layer of the multiple layers forming the multilayer protection film satisfies T?k×H×W where T represents the thickness of the first organic layer, H denotes the height of the bank layer, and k is a constant that is varied according to flowability or viscosity of the first organic layer.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: March 4, 2014
    Assignee: LG. Display Co., Ltd.
    Inventors: Aekyung Jeon, Jaeyoon Lee, Jongkyun Lee
  • Patent number: 8664847
    Abstract: At least two semiconductor components emit electromagnetic radiation in different wavelength ranges. The superimposition of these electromagnetic radiations of all semiconductor components has at least one fraction in the visible wavelength range. At least one of the semiconductor components has a luminescence conversion element in the beam path.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: March 4, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Stefan Groetsch, Georg Bogner, Berthold Hahn, Volker Haerle, Kirstin Petersen
  • Patent number: 8659219
    Abstract: A display panel includes a periphery area, an active display area adjacent to the periphery area and having two opposite sides connecting with the periphery area, a driving chip disposed at the periphery area for driving electrical elements in the active display area, and a plurality of wires electrically connecting the driving chip and the electrical elements in the active display area. The distance from a first part of the wires to the center of the driving chip is farther than the distance from a second part of the wires to the center of the driving chip, and the width of the first part of the wires on a reference line perpendicular to the opposite sides of the active display area is greater than the width of the second part of the wires on the reference line.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: February 25, 2014
    Assignee: Chimei Innolux Corporation
    Inventors: Chun-Chih Chiu, Wei-Chung Lu
  • Publication number: 20140042897
    Abstract: A light emitting device includes a substrate, a light emitting element, a first resin member and a second resin member. The substrate includes a base member, a plurality of wiring portions disposed on a surface of the base member, and a covering layer covering the wiring portions with an opening formed in a part of the covering layer. The light emitting element is arranged on the substrate in the opening of the covering layer and having an upper surface at a position higher than the covering layer. The first resin member is arranged at least in the opening of the covering layer and at periphery of the light emitting element. The second resin member seals the substrate and the light emitting element. The second resin member is disposed in contact with the first resin member.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 13, 2014
    Applicant: NICHIA CORPORATION
    Inventor: Kazuhiro KAMADA
  • Patent number: 8629615
    Abstract: An organic light emitting diode display and a method of fabricating the same are disclosed. In one embodiment, the method includes providing a base substrate including a first device region and a first encapsulation region, wherein the first encapsulation region is located on both sides of the first device region and forming an organic light emitting diode (OLED) on the first device region. The method further includes providing an encapsulation substrate including a second device region and a second encapsulation region corresponding to the first device region and first encapsulation region, respectively, forming a light transmission layer on the second device region and forming an inner filler on the light transmission layer.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: January 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hun Kim
  • Patent number: 8624289
    Abstract: An optoelectronic component comprising the following features is disclosed, at least one semiconductor body (1) provided for emitting electromagnetic radiation of a first wavelength range, an inner radiation-permeable shaped body (2), into which the semiconductor body (1) is embedded, a wavelength-converting layer (6) on an outer side (5) of the inner shaped body (2), said layer comprising a wavelength conversion substance (8) suitable for converting radiation of the first wavelength range into radiation of a second wavelength range, which is different from the first wavelength range, a coupling-out lens (10), into which the inner shaped body (2) and the wavelength-converting layer (6) are embedded, wherein the coupling-out lens (10) has an inner side enclosed by an inner hemisphere area having a radius Rconversion, and an outer side enclosing an outer hemisphere area having a radius Router, and the radii Rconverstion and Router meet the Weierstrass condition: Router?Rconversion*nlens/nair, where nlens is the
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: January 7, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Ralph Wirth
  • Patent number: 8624484
    Abstract: The present invention provides a white organic light-emitting element high in emission efficiency. In particular, the invention provides a white organic light-emitting element that has an emission spectrum having peaks in the respective wavelength regions of red color, green color and blue color and is high in emission efficiency.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: January 7, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroko Yamazaki, Satoshi Seo
  • Patent number: 8610154
    Abstract: A side-view type light emitting device includes a package body, a lead frame, and a light emitting diode (LED). The package body has a first surface provided as a mount surface, a second surface disposed on a side opposite to the first surface, and lateral surfaces disposed between the first surface and the second surface. The package body includes a recessed portion disposed on a lateral surface corresponding to a light emitting surface of the lateral surfaces. The lead frame is disposed in the package body. The LED chip is mounted on a bottom surface of the recessed portion. Protrusion parts protruding toward the LED chip are disposed in regions adjacent to the LED chip of facing inner sidewalls of the recessed portion, respectively.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: December 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho Young Song, Sung Min Yang, Yong Chun Kim, Won Soo Ji
  • Patent number: 8598778
    Abstract: A light emitting device includes a base; a light emitting diode (LED) supported by the base; a layer spaced apart from the LED and including a light emitting material of refraction index n1. An enclosure formed by the layer and the base encloses the LED. A medium inside the enclosure between the LED and the layer has a refraction index n0<n1; and an optic in contact with the layer and having a refraction index n2?n1. The layer is positioned between the optic and the LED. The optic has, at a surface of contact with the layer, a radius r measured along a ray originating from the LED, and, at an output surface of the optic, another radius R measured along the same ray, such that R?r·(n1/nm), where nm is a refraction index of a medium adjacent the output surface of the optic.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: December 3, 2013
    Assignee: Quarkstar LLC
    Inventors: Steven C. Allen, Andrew J. Steckl
  • Patent number: 8598779
    Abstract: An optoelectronic film assembly, has a first flat electrode layer, a second flat electrode layer as a counter electrode to the first flat electrode layer, a dielectric layer between the electrode layers and an active layer provided next to the dielectric layer and arranged between the electrode layers and made of an electroluminescent material. To this end, the first and/or the second electrode layers are implemented to be translucent and TCO-free, particularly ITO-free, by using a woven fabric comprising electrically conductive fibers.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: December 3, 2013
    Assignee: Sefar AG, Thal
    Inventors: Peter Chabrecek, Hanspeter Meier, Muriel Lantus, Uriel Sonderegger
  • Patent number: 8591280
    Abstract: An organic light emitting display (OLED) apparatus and a method of manufacturing the same, the OLED apparatus including: a substrate; an active layer formed on the substrate; a gate electrode insulated from the active layer; source and drain electrodes insulated from the gate electrode and electrically connected to the active layer; a pixel defining layer formed on the source and drain electrodes, having an aperture to expose one of the source and drain electrodes; an intermediate layer formed in the aperture and comprising an organic light emitting layer; and a facing electrode which is formed on the intermediate layer. One of the source and drain electrodes has an extension that operates as a pixel electrode. The aperture exposes the extended portion. The intermediate layer is formed on the extended portion.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: November 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do-Hyun Kwon, Il-Jeong Lee, Choong-Youl Im, Dae-Hyun No, Cheol-Ho Yu