With Contoured External Surface (e.g., Dome Shape To Facilitate Light Emission) Patents (Class 257/95)
  • Patent number: 11955772
    Abstract: A semiconductor light emitting element includes an optical waveguide having a first and second waveguide provided with a width that allows propagation of light in a second-order mode or higher and a multimode optical interference waveguide provided with a wider width than the first and second waveguide and arranged at a position therebetween. The semiconductor light emitting element further includes a first optical loss layer facing the first waveguide in an active-layer crossing direction for causing a loss of light that is propagating in the first waveguide in the second-order mode or higher and a second optical loss layer facing the second waveguide in an active-layer crossing direction for causing a loss of light that is propagating in the second waveguide in the second-order mode or higher, the active-layer crossing direction being orthogonal to a surface of an active layer.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: April 9, 2024
    Assignees: DENSO CORPORATION, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Yuki Kamata, Koichi Oyama, Hiroyuki Tarumi, Kiichi Hamamoto, Haisong Jiang
  • Patent number: 11776448
    Abstract: The disclosure relates to a light emitting diode (LED) that is capable of emitting a plurality of lights having different wavelengths from one another, and independently controlling the intensity of the plurality of emitted lights and a manufacturing method of the LED, and a display device including the LED.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jitsuo Ota, Jihoon Kang
  • Patent number: 11527676
    Abstract: A light-emitting unit and a method for manufacturing the same are provided. The light-emitting unit includes a first semiconductor layer, a light-emitting layer and a second semiconductor layer that are distributed in a stacking manner. At least one of the first semiconductor layer or the second semiconductor layer is at least in contact with a part of layer surfaces and a part of side of the light-emitting layer, the first semiconductor layer is insulated from the second semiconductor layer, and one of the first semiconductor layer and the second semiconductor layer is an N-type semiconductor layer, and the other is a P-type semiconductor layer. The present disclosure is conducive to increasing the light-emitting area and the light extraction efficiency of the light-emitting unit.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: December 13, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Guoqiang Wang, Jiushi Wang, Qingzhao Liu
  • Patent number: 11316131
    Abstract: An organic light-emitting diode (OLED) display panel includes a substrate including a display area and a non-display area. At least a retaining wall is disposed on the non-display area and is configured to protrude outward from a surface of the substrate. A plurality of first grooves are provided on the retaining wall. The first grooves are arranged in at least two rows, and the first grooves in adjacent two of the rows are alternately arranged.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 26, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Rui Lu, Jun Cao
  • Patent number: 11283243
    Abstract: A method for manufacturing a surface emitting laser made of a group-III nitride semiconductor by an MOVPE method includes: (a) growing a first cladding layer of a first conductive type on a substrate; (b) growing a first optical guide layer of the first conductive type on the first cladding layer; (c) forming holes having a two-dimensional periodicity in a plane parallel to the first optical guide layer, in the first optical guide layer by etching; (d) supplying a gas containing a group-III material and a nitrogen source and performing growth to form recessed portions having a facet of a predetermined plane direction above openings of the holes, thereby closing the openings of the holes; and (e) planarizing the recessed portions by mass transport, after the openings of the holes have been closed, wherein after the planarizing at least one side surface of the holes is a {10-10} facet.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 22, 2022
    Assignees: KYOTO UNIVERSITY, STANLEY ELECTRIC CO., LTD.
    Inventors: Susumu Noda, Yoshinori Tanaka, Menaka De Zoysa, Junichi Sonoda, Tomoaki Koizumi, Kei Emoto
  • Patent number: 11257983
    Abstract: A light emitting device, such as an LED, is formed by forming a plurality of semiconductor nanostructures having a doping of a first conductivity type through, and over, a growth mask layer overlying a doped compound semiconductor layer. Each of the plurality of semiconductor nanostructures includes a nanofrustum including a bottom surface, a top surface, tapered planar sidewalls, and a height that is less than a maximum lateral dimension of the top surface, and a pillar portion contacting the bottom surface of the nanofrustum and located within a respective one of the openings through the growth mask layer. A plurality of active regions on the nanofrustums. A second conductivity type semiconductor material layer is formed on each of the plurality of active regions.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: February 22, 2022
    Assignee: NANOSYS, INC.
    Inventors: Richard P. Schneider, Jr., Benjamin Leung, Fariba Danesh, Zulal Tezcan Ozel, Miao-Chan Tsai
  • Patent number: 11245060
    Abstract: A semiconductor device comprising: a substrate; a first reflector on the substrate; a second reflector on the first reflector; a semiconductor system directly contacting the first reflector and the second reflector and comprising a first side wall; and an insulating layer covering the first side wall and formed between the substrate and the first reflector.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: February 8, 2022
    Assignee: EPISTAR CORPORATION
    Inventors: Chih-Chiang Lu, Wei-Chih Peng, Shiau-Huei San, Min-Hsun Hsieh
  • Patent number: 11175448
    Abstract: The present disclosure provides a light emitting device and a method for fabricating the same. The light emitting device comprises: a substrate; a plurality of LED light sources, wherein the LED light source adopts a package form emitting light from four sides and having a reflection layer on a top surface, and the plurality of LED light sources are disposed on the substrate at intervals; and a transparent dielectric layer being disposed at a surface of the substrate and covering the plurality of LED light sources. The invention can be used to improve light-mixing effects.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: November 16, 2021
    Assignee: DURA-CHIP (NANTONG) LIMITED
    Inventors: Zhijiang Sun, Shuchang Wang, Shuai Chen
  • Patent number: 11171265
    Abstract: Embodiments of the invention include a semiconductor light emitting device capable of emitting first light having a first peak wavelength and a semiconductor wavelength converting element capable of absorbing the first light and emitting second light having a second peak wavelength. The semiconductor wavelength converting element is attached to a support and disposed in a path of light emitted by the semiconductor light emitting device. The semiconductor wavelength converting element is patterned to include at least two first regions of semiconductor wavelength converting material and at least one second region without semiconductor wavelength converting material disposed between the at least two first regions.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: November 9, 2021
    Assignee: Lumileds LLC
    Inventors: Michael David Camras, Oleg Borisovich Shchekin, Rafael Ignacio Aldaz Granell, Patrick Nolan Grillot, Frank Michael Steranka
  • Patent number: 11139353
    Abstract: The present disclosure provides a display panel, a display device, and a method for manufacturing the display panel. The display panel comprises an array substrate and a pixel-defining layer disposed on the array substrate. The pixel-defining layer has a plurality of pixel regions and defines a plurality of recesses non-overlapped with the plurality of pixel regions.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: October 5, 2021
    Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
    Inventors: Jinlei Huang, Xushen Wang, Haofeng Zhang, Jianping Chen
  • Patent number: 11101247
    Abstract: A light-emitting device includes a base including a conductive wiring; a light-emitting element mounted on the base and configured to emit light; a light reflective film provided on an upper surface of the light-emitting element; and a encapsulant covering the light-emitting element and the light reflective film. A ratio (H/W) of a height (H) of the encapsulant to a width (W) of a bottom surface of the encapsulant is less than 0.5.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: August 24, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Motokazu Yamada, Yuichi Yamada
  • Patent number: 11044809
    Abstract: A flexible circuit board, a display panel and a display module are provided. The flexible circuit board includes a substrate layer and a colloid layer. The substrate layer has a lamination area and a non-lamination area, the lamination area is used to laminate and connect the flexible circuit board with the display panel, and the lamination area includes a guiding structure. The colloid layer is disposed on a side surface of the substrate layer including the guiding structure, and the guiding structure is used to guide a flow direction of a colloid in the colloid layer when the colloid layer is melted by heat.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: June 22, 2021
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Cui Huang
  • Patent number: 10930817
    Abstract: A light-emitting device includes an emission structure, a current block layer on the emission structure, a reflective layer on the current block layer, a protection layer that covers the reflective layer, and an electrode layer on the protection layer.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-in Yang, Dong-hyuk Joo, Jin-ha Kim, Joon-woo Jeon, Jung-hee Kwak
  • Patent number: 10903394
    Abstract: A light emitting element includes: a substrate including a first surface including a first region and a second region; a first semiconductor layered body on the first region of the first surface of the substrate; and a second semiconductor layered body on the second region of the first surface of the substrate. A first angle defined by a first lateral surface of the first semiconductor layered body and the first region is smaller than a second angle defined by a second lateral surface of the first semiconductor layered body and the first region. A fourth angle defined by a second lateral surface of the second semiconductor layered body and the second region is smaller than a third angle defined by a first lateral surface of the second semiconductor layered body and the second region.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: January 26, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takamasa Sunda, Hitoshi Nagai
  • Patent number: 10734553
    Abstract: A light emitting device is described. The light emitting device includes a substrate and a semiconductor structure. The semiconductor structure includes a light emitting layer disposed between an n-type region and a p-type region and has a first surface adjacent the substrate and a second surface opposite the first surface. The first surface of the semiconductor structure multiple cavities formed therein, which extend into at least one of the n-type region and the p-type region. The cavities are spaced apart and lined by a dielectric layer. At least a portion of the second surface is roughened to form multiple features spaced apart at a distance smaller than a distance between each of the cavities formed in the first surface to enhance extraction of light emitted from the light emitting layer. At least one contact is disposed between the first surface of the semiconductor structure and the substrate.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: August 4, 2020
    Assignee: Lumileds LLC
    Inventors: Jonathan J. Wierer, Aurelien Jean Francois David, Henry Kwong-Hin Choy
  • Patent number: 10580931
    Abstract: A method of manufacturing a gallium nitride light-emitting diode, including the successive steps of: a) forming a planar active gallium nitride light-emitting diode stack including first and second doped gallium nitride layers of opposite conductivity types and, between the first and second gallium nitride layers, an emissive layer with one or a plurality of quantum wells; and b) growing nanowires on the surface of the first gallium nitride layer opposite to the emissive layer.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: March 3, 2020
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Ivan-Christophe Robin, Matthew Charles, Yohan Desieres
  • Patent number: 10403771
    Abstract: A sintered compact includes a wavelength conversion region containing a phosphor material that performs wavelength conversion of primary light and emits secondary light, and a holding region provided to be in contact with the wavelength conversion region. The wavelength conversion region and the holding region are integrated.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: September 3, 2019
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Akihiro Nomura, Hidemichi Sone, Yuzo Maeno, Yukihiro Onoda
  • Patent number: 10374124
    Abstract: A light emitting device, according to one embodiment, may comprise: a substrate having a pattern part disposed on the upper surface thereof; a first buffer layer disposed on the substrate; a second buffer later disposed on the first buffer layer; a first conductive semiconductor layer disposed on the second buffer layer; an active layer disposed on the first conductive semiconductor layer; a second conductive semiconductor layer disposed on the active layer; and a void layer disposed on the first buffer layer corresponding to the pattern part of the substrate. By further forming a void on the buffer layer, the embodiment has the effect of more effectively preventing defects caused by a potential difference.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 6, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jung Hun Jang, Seung Keun Nam, Jeong Soon Yim, Won Hee Choi
  • Patent number: 10367118
    Abstract: A light-emitting diode, comprises an active layer for emitting a light ray; an upper semiconductor stack on the active layer, wherein the upper semiconductor stack comprises a window layer; a reflector; and a lower semiconductor stack between the active layer and the reflector; wherein the thickness of the window layer is small than or equal to 3 ?m, and the thickness of the lower semiconductor stack is small than or equal to 1 ?m.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: July 30, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Yu-Ren Peng, Tzu-Chieh Hsu, Shih-I Chen, Rong-Ren Lee, Hsin-Chan Chung, Wen-Luh Liao, Yi-Chieh Lin
  • Patent number: 10319881
    Abstract: A profiled surface for improving the propagation of radiation through an interface is provided. The profiled surface includes a set of large roughness components providing a first variation of the profiled surface having a characteristic scale approximately an order of magnitude larger than a target wavelength of the radiation. The set of large roughness components can include a series of truncated shapes. The profiled surface also includes a set of small roughness components superimposed on the set of large roughness components and providing a second variation of the profiled surface having a characteristic scale on the order of the target wavelength of the radiation.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: June 11, 2019
    Assignee: Sensor Electronic Technology, Inc.
    Inventors: Maxim S. Shatalov, Alexander Dobrinsky, Michael Shur, Remigijus Gaska
  • Patent number: 10211373
    Abstract: A light-emitting device comprises a light-emitting stack comprising a first surface, a roughened surface, and a sidewall connecting the first surface and the roughened surface; an electrode structure formed on the roughened surface of the light-emitting stack; a dielectric layer formed on the first surface of the light-emitting stack; a barrier layer covering the dielectric layer; a first reflective electrode between the barrier layer and the first surface of the light-emitting stack; and a passivation layer covering the sidewall of the light-emitting stack and the roughened surface of the light-emitting stack which is not occupied by the electrode structure, wherein the electrode structure is surrounded by the passivation layer, and the passivation layer contacts an surface of the electrode structure and terminates at the surface of the electrode structure.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: February 19, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Jan Way Chien, Tzchiang Yu, Hsiao Yu Lin, Chyi Yang Sheu
  • Patent number: 10164159
    Abstract: A light-emitting diode (LED) package includes: a reflective structure including a cavity, a bottom portion having a through hole, and a sidewall portion surrounding the cavity and the bottom portion and having an inclined inner side surface; an electrode pad inserted into the through hole; an LED on the bottom portion in the cavity, the LED including a light-emitting structure electrically connected to the electrode pad and a phosphor formed on the light-emitting structure; and a lens structure filling the cavity and formed on the reflective structure.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: December 25, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-sub Lee, Yong-il Kim, Han-kyu Seong, Young-jin Choi
  • Patent number: 10153400
    Abstract: An optoelectronic semiconductor device includes a semiconductor body having a semiconductor region and an active region, wherein the semiconductor region has a covering layer forming a radiation passage surface of the semiconductor body on a side facing away from the active region, the semiconductor region has a current-spreading layer arranged between the covering layer and the active region; the semiconductor device has a contact for the electrical contacting of the semiconductor region; the contact adjoins the current-spreading layer in a terminal area; the contact adjoins the covering layer in a barrier region; and the barrier region runs parallel to the active region and is arranged closer to the active region than the radiation passage surface.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 11, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Guido Weiss
  • Patent number: 10069052
    Abstract: A light-emitting element includes a light transmissive substrate, a semiconductor layered body, and first and second light reflecting members. The semiconductor layered body is formed on a first main surface of the light transmissive substrate. The first light reflecting member covers a first lateral surface, a second lateral surface, a fourth lateral surface, and a second main surface of the light transmissive substrate. The second light reflecting member covers a surface of the semiconductor layered body that is opposite from a surface on which the light transmissive substrate is disposed. A cross-sectional plane of the light transmissive substrate parallel to the first main surface has a concave figure that includes a recess, and the third lateral surface includes one or more surfaces defining the recess.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: September 4, 2018
    Assignee: NICHIA CORPORATION
    Inventor: Yukitoshi Marutani
  • Patent number: 10008482
    Abstract: Light emitting assemblies comprise a plurality of Light Emitting Diode (LED) dies arranged and attached to common substrate to form an LED array having a desired optimum packing density. The LED dies are wired to one another and are attached to landing pads on the substrate for receiving power from an external electrical source via an interconnect device. The assembly comprises a lens structure, wherein each LED die comprises an optical lens disposed thereover that is configured to promote optimal light transmission. Each optical lens has a diameter that is between about 1.5 to 3 times the size of a respective LED die, and is shaped in the form of a hemisphere. Fillet segments are integral with and interposed between the adjacent optical lenses, and provide sufficient space between adjacent optical lenses so that the diameters of adjacent optical lenses do not intersect with one another.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: June 26, 2018
    Assignee: Bridgelux, Inc.
    Inventors: Wenhui Zhang, Tao Tong, Zhengqing Gan
  • Patent number: 9991238
    Abstract: Proposed is a light source comprising first and second LED light sources. Each of the first and second LED light sources have: a semiconductor diode structure adapted to generate light; and a light output section above the semiconductor diode structure adapted to output light from the semiconductor diode structure in a light output direction, the area of the light output section being less than the area of the semiconductor diode structure. The second LED light source is arranged above and at least partially overlapping the first LED light source with non-aligned light output sections with respect to the light output direction.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: June 5, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Floris Maria Hermansz Crompvoets, Norbertus Antonius Maria Sweegers, Hugo Johan Cornelissen, Marc Andre de Samber
  • Patent number: 9966260
    Abstract: Laser lift-off methods are described in which optical flatness is provided on the back side of a temporary substrate using either an optical layer or optical liquid. A laser is directed through the optical layer or optical liquid and a back side of the temporary substrate to decompose a portion of a process layer supported on a front side of the temporary substrate, followed by separation of the process layer and the temporary substrate.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: May 8, 2018
    Assignee: APPLE INC.
    Inventors: Clayton Ka Tsun Chan, Ion Bita, Ranjith Samuel E. John, Alfred F. Renaldo, Jie Fu, Sudirukkuge T. Jinasundera, An-Chun Tien
  • Patent number: 9929329
    Abstract: Embodiments relate to a light emitting device package including a first lead frame and a second lead frame spaced apart from each other, a light emitting device disposed on the first lead frame, a reflecting part disposed on the first lead frame and the second lead frame and a light transmitting part including a lower end part disposed on the reflecting part, the first lead frame and the second lead frame and an upper end part disposed on the lower end part. The upper end part has a side surface vertically aligned with a location of a sidewall between upper and lower ends of the reflecting part.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: March 27, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Bong Kul Min, Won Jung Kim, Heung Ju Lee, Chang Man Lim
  • Patent number: 9929199
    Abstract: There is provided a radiation detector including: a plurality of photoelectric conversion devices, each photoelectric conversion device formed at least partially within an embedding layer and having a light receiving surface situated at least partially outside of the embedding layer, and a plurality of scintillator crystals, at least a first scintillator crystal of the plurality of scintillator crystals in contact with at least one light receiving surface at a proximal end, wherein a cross-section of the first scintillator crystal at the proximal end is smaller than a cross-section of the first scintillator crystal at a distal end.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: March 27, 2018
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Takahiro Igarashi, Izuho Hatada, Takeshi Kodama, Kiwamu Adachi, Shuichi Oka, Shun Mitarai, Hiizu Ootorii, Shusaku Yanagawa, Katsuji Matsumoto
  • Patent number: 9893251
    Abstract: A light-emitting device package includes a plurality of luminescent structures arranged spaced apart from each other in a horizontal direction, an intermediate layer on the plurality of luminescent structures, and wavelength conversion layers on the intermediate layer, the wavelength conversion layers vertically overlapping separate, respective luminescent structures of the plurality of luminescent structures. The intermediate layer may include a plurality of layers, the plurality of layers associated with different refractive indexes, respectively. The intermediate layer may include a plurality of sets of holes, each set of holes may include a separate plurality of holes, and each wavelength conversion layer may vertically overlap a separate set of holes on the intermediate layer.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-sub Kim, Yong-il Kim, Dong-gun Lee, Kyung-wook Hwang, Jin-sub Lee, Min-gyeong Gwon
  • Patent number: 9887311
    Abstract: A semiconductor module includes a light emitting element, a semiconductor element including a light receptor circuit disposed to receive light from the light emitting element, a light-transmissive insulating body disposed between the light emitting element and the semiconductor element, at least one of a first surface thereof facing the semiconductor element and a second surface thereof facing the light emitting element including a ragged region, a first light-transmissive bonding resin formed between the light emitting element and the light-transmissive insulating body, and a second light-transmissive bonding resin formed between the semiconductor element and the light-transmissive insulating body.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 6, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kurosawa, Yoshihisa Imori
  • Patent number: 9870920
    Abstract: A method of forming an integrated circuit structure includes forming an insulation layer over at least a portion of a substrate; forming a plurality of semiconductor pillars over a top surface of the insulation layer. The plurality of semiconductor pillars is horizontally spaced apart by portions of the insulation layer. The plurality of semiconductor pillars is allocated in a periodic pattern. The method further includes epitaxially growing a III-V compound semiconductor film from top surfaces and sidewalls of the semiconductor pillars.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 16, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hsin Ko, Cheng-Hsien Wu, Clement Hsingjen Wann
  • Patent number: 9856562
    Abstract: There is provided a semiconductor manufacturing device that supplies a source gas to a substrate installed in a reaction furnace and performs film formation processing to the substrate, including: a storage vessel which is disposed in the reaction furnace and which stores a metal raw material as a base of the source gas; an auxiliary vessel which is disposed at an upper side of the storage vessel in the reaction furnace and which is a bottomed vessel having an inlet port for the metal raw material; a connection pipe through which an outlet port for the metal raw material formed on the auxiliary vessel and an inside of the storage vessel are communicated with each other; a sealing plug for sealing the outlet port so as to be opened and closed freely; and heater units that heat an inside of the reaction furnace to a predetermined temperature so as to melt the metal raw material in the auxiliary vessel and the metal raw material in the storage vessel, and to a predetermined temperature required for film formatio
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: January 2, 2018
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Hajime Fujikura
  • Patent number: 9847458
    Abstract: A light emitting diode includes an n-type semiconductor layer disposed on a substrate; a p-type semiconductor layer disposed on a portion of the n-type semiconductor layer; an active layer disposed between the n-type semiconductor layer and the p-type semiconductor layer and generating light through recombination of electrons and holes; an ohmic contact layer disposed on the p-type semiconductor layer and including an indium tin oxide (ITO) layer doped with a metal, a transparent conductive layer disposed on the ohmic contact layer to a different thickness than the ohmic contact layer and including an undoped ITO layer, and a reflective layer disposed on the transparent conductive layer and including an oxide layer. Accordingly, the light emitting diode exhibits excellent current-voltage characteristics through improvement in reliability and electrical conductivity of the ohmic contact layer while improving luminous efficacy through the reflective layer formed of an oxide.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: December 19, 2017
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: So Ra Lee, Yeo Jin Yoon
  • Patent number: 9846154
    Abstract: A method for analyzing a metalloprotein and/or the interaction with its environment comprising the following steps: (a) Providing a medium that enhances the detection of the electromagnetic cross-section signal of metalloproteins, (b) Incorporating a metalloprotein to analyse into said medium, (c) Contacting said medium with electromagnetic radiation, (d) Obtaining the electromagnetic cross-section spectrum of said metalloprotein, (e) Determining from said electromagnetic cross-section spectrum at least one parameter related to one or several analytes of interest.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 19, 2017
    Assignee: Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Inventors: Guillaume Suárez, Christian Santschi, Olivier Martin
  • Patent number: 9812622
    Abstract: A light-emitting element includes: a light transmissive substrate having a first main surface, a second main surfaces, a first lateral surface, a second lateral surface, a third lateral surface, and a fourth lateral surface; a semiconductor layered body; a first light reflection member; and a second light reflection member. A cross-sectional plane of the light transmissive substrate perpendicular to the first main surface and intersecting with the third lateral surface and the fourth lateral surface has a first concave figure having a first recess. The deepest portion of the first recess is arranged on an inner side of an outer periphery of the semiconductor layered body. The third lateral surface includes one or more surfaces defining the first recess.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: November 7, 2017
    Assignee: Nichia Corporation
    Inventor: Yukitoshi Marutani
  • Patent number: 9660085
    Abstract: Techniques are disclosed for forming a GaN transistor on a semiconductor substrate. An insulating layer forms on top of a semiconductor substrate. A trench, filled with a trench material comprising a III-V semiconductor material, forms through the insulating layer and extends into the semiconductor substrate. A channel structure, containing III-V material having a defect density lower than the trench material, forms directly on top of the insulating layer and adjacent to the trench. A source and drain form on opposite sides of the channel structure, and a gate forms on the channel structure. The semiconductor substrate forms a plane upon which both GaN transistors and other transistors can form.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 23, 2017
    Assignee: Intel Coporation
    Inventors: Han Wui Then, Robert S. Chau, Sansaptak Dasgupta, Marko Radosavljevic, Benjamin Chu-Kung, Seung Hoon Hoon Sung, Sanaz K. Gardner, Ravi Pillarisetty
  • Patent number: 9634200
    Abstract: A semiconductor light emitting device comprises a supporting substrate that has light reflecting characteristics; a wavelength conversion layer that is disposed on the supporting substrate, and contains semiconductor nanoparticles developing a quantum size effect; an optical semiconductor laminate that is disposed on the wavelength conversion layer and has light emitting characteristics; and a photonic crystal layer that is disposed on the optical semiconductor laminate, and that has first portions having a first refractive index and second portions having a second refractive index different from the first refractive index, the first portions and the second portions being arranged in a two-dimensional cyclic pattern.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: April 25, 2017
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Takuya Kazama, Wataru Tamura, Yasuyuki Miyake
  • Patent number: 9586526
    Abstract: An exterior mirror system for a vehicle includes an exterior mirror assembly having a folding portion and a non-folding portion configured for mounting at a side of a vehicle. A reflective element is disposed at the folding portion. The reflective element is mounted to a backing plate that is supported by an electrical actuator operable to move the reflective element. The exterior mirror assembly includes an indicator having at least one light emitting diode that emits an intensity of light when electrically operated. During low ambient lighting conditions at night, the intensity of light emitted by the at least one light emitting diode of the indicator is reduced under photosensor control to a nighttime intensity level. The nighttime intensity level is greater than about 0.3 candela and is less than about 200 candelas. The indicator may include a module and the module may be substantially water impervious.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 7, 2017
    Assignee: Magna Mirrors of America, Inc.
    Inventors: Todd W. Pastrick, Michiel P. van de Ven, Peter J. Whitehead, Rick Mousseau, Niall R. Lynam
  • Patent number: 9574743
    Abstract: Embodiments of the present invention provide separate optical devices operable to couple to a separate LED, the separate optical device comprising an entrance surface to receive light from a separate LED when the separate optical device is coupled to the separate LED, an exit surface opposite from and a distance from the entrance surface and a set of sidewalls. The exit surface can have at least a minimum area necessary to conserve brightness for a desired half-angle of light projected from the separate optical device. Furthermore, each sidewall is positioned and shaped so that rays having a straight transmission path from the entrance surface to that sidewall reflect to the exit surface with an angle of incidence at the exit surface at less than or equal to a critical angle at the exit surface.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: February 21, 2017
    Assignee: Illumitex, Inc.
    Inventors: Dung T. Duong, Paul N. Winberg, Matthew R. Thomas
  • Patent number: 9541682
    Abstract: The present invention provides a display device having excellent light energy conversion efficiency. The present invention relates to a display device including a light-diffusing layered body. The light-diffusing layered body includes a wavelength conversion layer containing optically isotropic semiconductor particles and a light-diffusing layer on at least one surface of the wavelength conversion layer. The light-diffusing layer contains a binder component and light-diffusing particles that contain an organic material or an inorganic material. The light-diffusing particles protrude in a range of 3 to 50% of the particle size of the light-diffusing particles from an outermost surface of the light-diffusing layer. The light-diffusing layer has projections and depressions on the outermost surface due to the light-diffusing particles protruding therefrom. The light-diffusing layer has a film thickness of 1 to 30 ?m.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: January 10, 2017
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Seiichi Isojima, Hiroshi Kojima, Hiroki Nakagawa
  • Patent number: 9530934
    Abstract: A light-emitting device includes a semiconductor stack; a pad electrode comprising a periphery disposed on the semiconductor stack; and a finger electrode connected to the pad electrode, wherein the finger electrode includes a first portion extended from the periphery of the pad electrode and a second portion away from the pad electrode, the first portion includes a first side and a second side, the first side is opposite to the second side, the first side comprises a first arc having a first curvature radius, and the first curvature radius is larger than 10 ?m.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 27, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Chien-Hua Chou, Tai-Chun Wang, Biau-Dar Chen, Chih-Tsung Su
  • Patent number: 9515240
    Abstract: A method for increasing the luminous efficacy of a white light emitting diode (WLED), comprising introducing optically functional interfaces between an LED die and a phosphor, and between the phosphor and an outer medium, wherein at least one of the interfaces between the phosphor and the LED die provides a reflectance for light emitted by the phosphor away from the outer medium and a transmittance for light emitted by the LED die. Thus, a WLED may comprise a first material which surrounds an LED die, a phosphor layer, and at least one additional layer or material which is transparent for direct LED emission and reflective for the phosphor emission, placed between the phosphor layer and the first material which surrounds the LED die.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: December 6, 2016
    Assignee: The Regents of the University of California
    Inventors: Frederic S. Diana, Steven P. DenBaars, Shuji Nakamura
  • Patent number: 9515121
    Abstract: An exemplary light emitting diode includes a substrate; a first light emitting cell and a second light emitting cell disposed over the substrate and separated from each other; and an interconnection electrically connecting the first light emitting cell to the second light emitting cell. Each of the first and second light emitting cells includes a first conductive-type semiconductor layer, a second conductive-type semiconductor layer disposed over the first conductive-type semiconductor layer, and an active layer disposed between the first conductive-type semiconductor layer and the second conductive-type semiconductor layer. At least one of the first light emitting cell and the second light emitting cell includes a side surface inclined with respect to the substrate. The side surface includes a first inclined portion forming an acute angle with respect to the substrate, a second inclined portion forming an obtuse angle with respect to the substrate, and an inclination discontinuity section.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 6, 2016
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Se Hee Oh, Seom Geun Lee, Yeo Jin Yoon, Hyun Haeng Lee, Mae Yi Kim
  • Patent number: 9472730
    Abstract: A light emitting device includes a light emitting element and a luminescent color conversion layer covering a light emitting surface of the light emitting element. The luminescent color conversion layer includes a transparent synthetic resin material and integrated particles provided inside the transparent synthetic resin material, each of the integrated particles being a mixture of phosphors and a dispersively binding material that are bonded to each other. The dispersively binding material has transparency and bondability to the phosphors. The luminescent color conversion layer is arranged such that primary light and secondary light are mixed to generate a mixed color light and such that the mixed-color light is emitted outside from the luminescent color conversion layer, the primary light being excitation light emitted by the light emitting element, and the secondary light being a portion of the primary light that has been is color-converted by an excitation of the phosphors.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: October 18, 2016
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Satoshi Wada, Kosei Fukui
  • Patent number: 9412904
    Abstract: A device for back-scattering an incident light ray, including: a host substrate; a structured layer; a first face in contact with a front face of the host substrate; a second flat face parallel to the first face; a first material and a second material which form, in a mixed plane, alternating surfaces at least one of whose dimensions is between 300 nm and 800 nm, the mixed plane is between the first and second face of the structured layer; wherein the refractive index of the first and of the second material are different, the structured layer is covered by a specific layer, the specific layer is made of a material which is different from the first and second materials of the structured layer, and the specific layer is crystalline and semi-conductive.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: August 9, 2016
    Assignees: Commissariat a l'energie atomique et aux energies alternatives, Soitec
    Inventors: Yohan Desieres, Philippe Gilet, Pascal Guenard
  • Patent number: 9391233
    Abstract: A method for manufacturing a light emitting device package is provided. In the method, a growth substrate including a plurality of light emitting devices disposed on a top surface of the growth substrate is prepared. A first package substrate having a bonding pattern corresponding to a portion of the plurality of light emitting devices is prepared, and the bonding pattern is disposed on a top surface of the first package substrate. The portion of the plurality of light emitting devices and the bonding pattern are bonded by disposing the top surface of the growth substrate to face the top surface of the first package substrate. The portion of the plurality of light emitting devices is separated from the growth substrate. The portion of the plurality of light emitting devices joined to the bonding pattern is packaged.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myong-soo Cho, Myeong-rak Son, Young-chul Shin, Seung-hwan Lee
  • Patent number: 9368940
    Abstract: To provide a semiconductor laser that suppresses end face destruction due to catastrophic optical damage (COD) to a light emission end face and has high output characteristics. An n-type clad layer, a current block layer, an active layer, and a p-type clad layer are provided over an n-type substrate whose major plane has an off-angle in a <1-100> direction from a (0001) plane. For example, the current block layer is arranged on both sides of a current constriction area. Then, the current block layer is arranged so as to be retracted from a cleavage plane (line). In this case, in the active layer having a quantum well structure that is crystal-grown over the n-type clad layer and the current block layer, the layer thickness of a window area from the cleavage plane (line) up to the end part of the current block layer is smaller than the layer thickness of the current constriction area (area between the current block layers).
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: June 14, 2016
    Assignee: Reneas Electronics Corporation
    Inventor: Fumito Miyasaka
  • Patent number: RE46058
    Abstract: An electrode structure is disclosed for enhancing the brightness and/or efficiency of an LED. The electrode structure can have a metal electrode and an optically transmissive thick dielectric material formed intermediate the electrode and a light emitting semiconductor material. The electrode and the thick dielectric cooperate to reflect light from the semiconductor material back into the semiconductor so as to enhance the likelihood of the light ultimately being transmitted from the semiconductor material. Such LED can have enhanced utility and can be suitable for uses such as general illumination. The semiconductor material can have a cutout formed therein and a portion of the electrode can be formed outside of the cutout and a portion of the electrode can be formed inside of the cutout. The portion of the electrode outside the cutout can be electrically isolated from the semiconductor material by the dielectric material.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: July 5, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Frank T. Shum
  • Patent number: RE48617
    Abstract: Provided is a package of a light emitting diode. The package according to an embodiment includes a base layer, a light emitting diode chip on the base layer, a lead frame electrically connected to the light emitting diode chip, a reflective coating layer directly on the lead frame, and a molding material covering the light emitting diode chip in a predetermined shape.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: June 29, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Bo Geun Park