Discrete Light Emitting And Light Responsive Devices Patents (Class 257/82)
  • Patent number: 8232123
    Abstract: An organic light emitting device and a manufacturing method thereof, including a first signal line and a second signal line intersecting each other on an insulating substrate, a switching thin film transistor connected to the first signal line and the second signal line, a driving thin film transistor connected to the switching thin film transistor, and a light emitting diode (“LD”) connected to the driving thin film transistor. The driving thin film transistor includes a driving control electrode and a driving semiconductor overlapping the driving control electrode, crystallized silicon having a doped region and a non-doped region, a driving gate insulating layer disposed between the driving control electrode and the driving semiconductor, and a driving input electrode and a driving output electrode opposite to each other on the driving semiconductor, wherein the interface between the driving gate insulating layer and the driving semiconductor includes nitrogen gas.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: July 31, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-Sik Cho, Byoung-Seong Jeong, Joon-Hoo Choi, Jong-Moo Huh
  • Patent number: 8217404
    Abstract: A light-mixing type LED package structure for increasing color render index includes a substrate unit, a light-emitting unit, a frame unit and a package unit. The light-emitting unit has a first light-emitting module for generating a first color temperature and a second light-emitting module for generating a second color temperature. The frame unit has two annular resin frames surroundingly formed on the top surface of the substrate unit by coating. The two annular resin frames respectively surround the first light-emitting module and the second light-emitting module in order to form two resin position limiting spaces above the substrate unit. The package unit has a first translucent package resin body and a second translucent package resin body both disposed on the substrate unit and respective covering the first light-emitting module and the second light-emitting module.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 10, 2012
    Assignee: Paragon Semiconductor Lighting Technology Co., Ltd.
    Inventors: Chao-Chin Wu, Chia-Tin Chung
  • Publication number: 20120162947
    Abstract: Embodiments of the present invention provide an integrated circuit system including a first active layer fabricated on a front side of a semiconductor die and a second pre-fabricated layer on a back side of the semiconductor die and having electrical components embodied therein, wherein the electrical components include at least one discrete passive component. The integrated circuit system also includes at least one electrical path coupling the first active layer and the second pre-fabricated layer.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 28, 2012
    Applicant: ANALOG DEVICES, INC.
    Inventors: Alan O'DONNELL, Santiago IRIARTE, Mark J. MURPHY, Colin LYDEN, Gary CASEY, Eoin Edward ENGLISH
  • Patent number: 8198641
    Abstract: A tamper-resistant semiconductor device (5;20;30;40;50;60) which includes a plurality of electronic circuits formed on a circuitry side (6) of a substrate (7) having an opposite side which is a backside (8) of the semiconductor device, and comprises at least one light-emitting device (9a-f;21) and at least one light-sensing device (10a-f;22a-b) provided on the circuitry side (6) of the semiconductor device. The light-emitting device (9a-f;21) is arranged to emit light, including a wavelength range for which the substrate (7) is transparent, into the substrate towards the backside (8), and the light-sensing device (10a-f;22a-b) is arranged to sense at least a fraction of the emitted light following passage through the substrate (7) and reflection at the backside (8), and configured to output a signal indicative of a reflecting state of the backside, thereby enabling detection of an attempt to tamper with the backside (8) of the semiconductor device (5;20;30;40;50;60).
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: June 12, 2012
    Assignee: NXP B.V.
    Inventor: Frank Zachariasse
  • Patent number: 8193542
    Abstract: A photoelectric apparatus includes a substrate and an array of a plurality of pixels each having at least one photoelectric device including a lower electrode over the substrate, a photoelectric layer over the lower electrode, and an upper electrode over the photoelectric layer, the photoelectric apparatus further includes an electrically conductive partition between adjacent two of the pixels, the conductive partition being electrically connected with the upper electrode and a transparent insulating layer on the upper electrode, and the pixels is individually sealed in by the partition and the transparent insulating layer.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: June 5, 2012
    Assignee: Fujifilm Corporation
    Inventor: Yoshiki Maehara
  • Patent number: 8183581
    Abstract: An LED arrangement (light emitting diode) has a plurality of adjacent radiating LEDs that are nearly identically aligned for forming an extended area light source. The LEDs are attached to a metallic multi-film support having sandwich-like insulating intermediate layers and having at least a step-like structure with at least one step. At least one LED chip is placed on each step on a metal film and the metal layer directly above is formed of a corresponding shortening or recess for mounting an LED.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: May 22, 2012
    Assignee: Siemens Aktiengesellschsft
    Inventor: Detlef Gerhard
  • Patent number: 8178885
    Abstract: An object is to provide an aromatic amine compound with excellent heat resistance. Another object is to provide a light emitting element, a light emitting device, and an electronic device with excellent heat resistance. An aromatic amine compound represented by General Formula (1) is provided. The aromatic amine compound represented by General Formula (1) has a high glass transition point and excellent heat resistance. By using the aromatic amine compound represented by General Formula (1) for a light emitting element, a light emitting device, and an electronic device, a light emitting element, a light emitting device, and an electronic device with excellent heat resistance can be obtained.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: May 15, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Harue Nakashima, Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo
  • Patent number: 8174031
    Abstract: The light-emitting element chip includes: a substrate; a light-emitting portion including plural light-emitting elements each having a first semiconductor layer that has a first conductivity type and that is stacked on the substrate, a second semiconductor layer that has a second conductivity type and that is stacked on the first semiconductor layer, the second conductivity type being a conductivity type different from the first conductivity type, a third semiconductor layer that has the first conductivity type and that is stacked on the second semiconductor layer, and a fourth semiconductor layer that has the second conductivity type and that is stacked on the third semiconductor layer; and a controller including a logical operation element that performs logical operation for causing the plural light-emitting elements to perform a light-emitting operation, the logical operation element being formed by combining some sequential layers of the first, second, third and fourth semiconductor layers.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: May 8, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yoshinao Kondoh
  • Patent number: 8174030
    Abstract: The present invention is directed to a vertical-type luminous device and high through-put methods of manufacturing the luminous device. These luminous devices can be utilized in a variety of luminous packages, which can be placed in luminous systems. The luminous devices are designed to maximize light emitting efficiency and/or thermal dissipation. Other improvements include an embedded zener diode to protect against harmful reverse bias voltages.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: YuSik Kim
  • Publication number: 20120097982
    Abstract: A lighting device including an electroluminescent (EL) material is connected to an external power supply easily and the convenience is improved. In a lighting device having a light-emitting element including an electroluminescence (EL) layer, a housing including a light-emitting element has a terminal electrode electrically connected to the light-emitting element on a peripheral end portion. The terminal electrode provided on the housing so as to be exposed to the outside is in contact with a terminal electrode for the external power supply, so that the external power supply and the light-emitting element are electrically connected to each other and power can be supplied to the lighting device.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 26, 2012
    Inventors: Kenichi Wakimoto, Akihiro Chida, Kohei Yokohama
  • Publication number: 20120086019
    Abstract: Disclosed is a substrate for display panel that includes, in a pixel, a PIN diode 21 that conducts currents of different values based on the amount of light received, a first inorganic insulating film 11 formed over the PIN diode 21, metal electrodes 12c and 12d that are formed over the first inorganic insulating film 11 and that are connected to the PIN diode 21, an organic insulating film 14 formed over the metal electrodes 12c and 12d, a transparent pixel electrode 15 formed on the organic insulating film 14, and a conductive film 13 that is interposed between the organic insulating film 14 and the first inorganic insulating film 11 and that is patterned so as to partially overlap and partially form an opening with respect to an I-layer 8d of the PIN diode 21.
    Type: Application
    Filed: February 18, 2010
    Publication date: April 12, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Seiji Kaneko
  • Publication number: 20120086018
    Abstract: A package-on-package proximity sensor module including a infrared transmitter package and a infrared receiver package is presented. The proximity sensor module may include a fully-assembled infrared transmitter package and a fully-assembled infrared receiver package disposed on a quad flat pack no-lead (QFN) lead frame molded with an IR cut compound housing. A bottom surface of the QFN lead frame may be etched and covered with the IR cut compound to provide a locking feature between the QFN lead frame and the IR cut compound housing.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Inventors: Yufeng Yao, Chi Boon Ong, Chee Heng Wong
  • Patent number: 8143629
    Abstract: An object of the invention is to provide a lighting device which can suppress luminance nonuniformity in a light emitting region when the lighting device has large area. A layer including a light emitting material is formed between a first electrode and a second electrode, and a third electrode is formed to connect to the first electrode through an opening formed in the second electrode and the layer including a light emitting material. An effect of voltage drop due to relatively high resistivity of the first electrode can be reduced by electrically connecting the third electrode to the first electrode through the opening.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: March 27, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yasuyuki Arai
  • Patent number: 8143630
    Abstract: A semiconductor structure includes a substrate which may be formed from a ZnS single crystal of wurtzite (2H) structure with a predetermined crystal orientation, and which has a first surface and a second surface. The structure includes a layer of a group III-nitride crystalline material deposited as an epitaxial layer on the first surface of the substrate. In one embodiment, the group III-nitride deposit is epitaxially grown using a MOCVD (or MOVPE) technique or a HVPE technique or a combination thereof. There may be a mask and/or a buffer layer on the first surface and/or a protective layer on the second surface.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: March 27, 2012
    Assignee: Fairfield Crystal Technology, LLC
    Inventor: Shaoping Wang
  • Patent number: 8138502
    Abstract: To prevent a point defect and a line defect in forming a light-emitting device, thereby improving the yield. A light-emitting element and a driver circuit of the light-emitting element, which are provided over different substrates, are electrically connected. That is, a light-emitting element and a driver circuit of the light-emitting element are formed over different substrates first, and then electrically connected. By providing a light-emitting element and a driver circuit of the light-emitting element over different substrates, the step of forming the light-emitting element and the step of forming the driver circuit of the light-emitting element can be performed separately. Therefore, degrees of freedom of each step can be increased, and the process can be flexibly changed. Further, steps (irregularities) on the surface for forming the light-emitting element can be reduced than in the conventional technique.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: March 20, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Osamu Nakamura, Miyuki Higuchi, Yasuko Watanabe, Yasuyuki Arai
  • Patent number: 8129726
    Abstract: A light-emitting diode (LED) package having electrostatic discharge (ESD) protection function and a method of fabricating the same adopt a composite substrate to prepare an embedded diode and an LED, and use an insulating layer in the composite substrate to isolate some individual embedded diodes, such that the LED device has the ESD protection.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: March 6, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Tsung Shih, Chen-Peng Hsu, Kuan-Chieh Tu, Hung-Lieh Hu, Bing-Ru Chen, Shih-Tsai Huang, Hsin-Yun Tsai
  • Patent number: 8124987
    Abstract: The light-emitting element chip includes: a substrate; a light-emitting portion including plural light-emitting elements each having a first semiconductor layer that has a first conductivity type and that is stacked on the substrate, a second semiconductor layer that has a second conductivity type and that is stacked on the first semiconductor layer, the second conductivity type being a conductivity type different from the first conductivity type, a third semiconductor layer that has the first conductivity type and that is stacked on the second semiconductor layer, and a fourth semiconductor layer that has the second conductivity type and that is stacked on the third semiconductor layer; and a controller including a logical operation element that performs logical operation for causing the plural light-emitting elements to perform a light-emitting operation, the logical operation element being formed by combining some sequential layers of the first, second, third and fourth semiconductor layers.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: February 28, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yoshinao Kondoh
  • Patent number: 8125089
    Abstract: An improved photoconductive switch having a SIC or other wide band gap substrate material, such as GaAs and field-grading liners composed of preferably SiN formed on the substrate adjacent the electrode perimeters or adjacent the substrate perimeters for grading the electric fields.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: February 28, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: George J. Caporaso, Stephen E. Sampayan, James S. Sullivan, David M. Sanders
  • Patent number: 8120044
    Abstract: A multi-chip having an optical interconnection unit is provided. The multi-chip having an optical interconnection unit includes a plurality of silicon chips sequentially stacked, a plurality of optical device arrays on a side of each of the plurality of the silicon chips such that the optical device arrays correspond to each other and a wiring electrically connecting the silicon chip and the optical device array attached to a side of the silicon chip, wherein the corresponding optical device arrays forms an optical connection unit by transmitting and receiving an optical signal between the corresponding optical device arrays in different layers. Each of the optical device arrays includes at least one of a light emitting device and a light receiving device.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: February 21, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-haeng Cho, Kyoung-ho Ha, Han-youl Ryu, Sung-dong Suh, Seong-gu Kim, Bok-ki Min
  • Patent number: 8120037
    Abstract: A system for displaying images is disclosed. The system includes a self-emitting display device including an array substrate having a pixel region. A light-emitting diode is disposed on the array substrate of the pixel region. First and second driving thin film transistors are electrically connected to a light-emitting diode. The first driving thin film transistor includes a first gate and an active layer stacked on the array substrate of the pixel region and the second driving thin film transistor includes the active layer and a second gate thereon. The first gate is coupled to a first voltage and the second gate is coupled to a second voltage different from the first voltage during the same frame.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: February 21, 2012
    Assignee: Chimei Innolux Corporation
    Inventors: Hanson Liu, Ryan Lee
  • Publication number: 20120025211
    Abstract: The present invention discloses a compact sensor package structure, which comprises a package body, an LED chip and a sensor chip. The package body has a first room, a second room, a first hole and a second hole. The first and second rooms are independent to each other. The first and second holes interconnect the interiors and the external environments of the first and second rooms. The LED chip is arranged inside the first room, corresponding to the first hole and below the first hole. The LED chip projects light through the first hole. The sensor chip is arranged inside the second room, corresponding to the second hole and above/below the second hole. The sensor chip receives light via the second hole. The present invention features two independent rooms for two chips and prevents interference between the two chips.
    Type: Application
    Filed: July 6, 2011
    Publication date: February 2, 2012
    Applicant: SIGURD MICROELECTRONICS CORP.
    Inventors: TSAN-LIEN YEH, WAN-HUA WU, SZU-CHUAN PANG, CHI-CHANG WU, MING-HUNG HUNG
  • Patent number: 8106406
    Abstract: A package is disclosed. The package includes a premolded substrate having a leadframe structure, a first device attached to the leadframe structure, and a molding material covering at least part of the leadframe structure and the first device. It also includes a second device attached to the premolded substrate.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: January 31, 2012
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Yong Liu, Zhongfa Yuan
  • Patent number: 8106404
    Abstract: Disclosed is a semiconductor light emitting device. The semiconductor light emitting device includes a plurality of compound semiconductor layers including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer; a dot type conductive layer on the compound semiconductor layers; and an electrode layer on the dot type conductive layer.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: January 31, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventor: Jung Hyeok Bae
  • Publication number: 20120018744
    Abstract: A single optical receiver having a photo-detector with a wide optical bandwidth and high efficiency within the wide optical bandwidth, the photo-detector comprising: a first diode region of first doping type for receiving light; a second diode region of second doping type and of second thickness; an active region for converting the received light to an electronic signal, the active region having a third thickness and configured to reside between the first diode region and the second diode region; and a reflector coupled to the second diode region and having a silicon layer with a fourth thickness, the silicon layer residing between silicon oxide layers of fifth thicknesses, wherein the active region is configured to absorb the light of wavelengths of less than 900 nm, and wherein the reflector is configured to reflect the light of wavelengths from a range of 1260 nm to 1380 nm.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 26, 2012
    Inventors: Olufemi I. Dosunmu, Ansheng Liu
  • Patent number: 8097886
    Abstract: An organic electroluminescence device which can prevent the deterioration thereof attributed to moisture by preventing a desiccant from influencing organic electroluminescence elements is provided. The organic electroluminescence device includes: first and second substrates which are arranged to face each other in an opposed manner with a gap therebetween; organic electroluminescence elements which are formed on a first surface of the first substrate which faces the second substrate in an opposed manner; a desiccant which is formed on a second surface of the second substrate which faces the first substrate in an opposed manner; and a resin which is adhered to the first and second surfaces and covers the desiccant and the organic electroluminescence elements.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: January 17, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Satoru Kase, Yoshinori Ishii, Eiji Matsuzaki
  • Patent number: 8097889
    Abstract: A light-emitting device operating on a high drive voltage and a small drive current. LEDs (1) are two-dimensionally formed on an insulating substrate (10) of e.g., sapphire monolithically and connected in series to form an LED array. Two such LED arrays are connected to electrodes (32) in inverse parallel. Air-bridge wiring (28) is formed between the LEDs (1) and between the LEDs (1) and electrodes (32). The LED arrays are arranged zigzag to form a plurality of LEDs (1) to produce a high drive voltage and a small drive current. Two LED arrays are connected in inverse parallel, and therefore an AC power supply can be used as the power supply.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: January 17, 2012
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Shiro Sakai, Jin-Ping Ao, Yasuo Ono
  • Patent number: 8097888
    Abstract: A package carrier suitable for carrying at least one light emitting device and at least one light receiving device includes a carrier substrate and a metal sheet. The carrier substrate includes a first carrying area and a second carrying area. The light emitting device is disposed in the first carrying area and the light receiving device is disposed in the second carrying area. The metal sheet is disposed in the carrier substrate and located between the first carrying area and the second carrier area, for blocking optical signal transmission between the light emitting device and the light receiving device.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: January 17, 2012
    Assignee: Elite Advanced Laser Corporation
    Inventors: Chu-Liang Cheng, Chi-Hua Wang
  • Patent number: 8086108
    Abstract: An optical transmission/reception device includes at least one light emitting portion and at least one light receiving portion on the same substrate. The light emitting portion includes at least a lower multilayer reflector and an active layer provided on the lower multilayer reflector. A metal layer including a plurality of opening portions is provided in an upper portion of the light emitting portion. Each of the opening portions has a size smaller than a light emission wavelength of the light emitting portion.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: December 27, 2011
    Assignee: Panasonic Corporation
    Inventors: Tatsuya Tanigawa, Tetsuzo Ueda, Daisuke Ueda
  • Patent number: 8084774
    Abstract: A light-emitting device operating on a high drive voltage and a small drive current. LEDs (1) are two-dimensionally formed on an insulating substrate (10) of e.g., sapphire monolithically and connected in series to form an LED array. Two such LED arrays are connected to electrodes (32) in inverse parallel. Air-bridge wiring (28) is formed between the LEDs (1) and between the LEDs (1) and electrodes (32). The LED arrays are arranged zigzag to form a plurality of LEDs (1) to produce a high drive voltage and a small drive current. Two LED arrays are connected in inverse parallel, and therefore an AC power supply can be used as the power supply.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: December 27, 2011
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Shiro Sakai, Jin-Ping Ao, Yasuo Ono
  • Patent number: 8076678
    Abstract: A package for a photoelectric wiring in which a pair of light emitting and receiving devices are mounted as optical devices on a lead frame having an optical waveguide in which an optical waveguide having a plurality of core portions disposed in parallel and surrounded by a cladding is mounted on a support plate of a lead frame having a mirror section including the support plate for supporting the optical waveguide, mirror sections having a mirror surface portion formed by bending both edges of the support plate at an angle of 45 degrees with respect to a planar direction of the support plate in a side direction, and lead portions to be electrically connected to the optical devices, the support plate, the mirror sections and the lead sections being formed by pressing a metallic material, wherein the light emitting device and the light receiving device are mounted in alignment with an optical path of a light reflected by the mirror surface portion and transmitted through the core portions at one of sides and t
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: December 13, 2011
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventor: Takanori Yamamoto
  • Publication number: 20110297831
    Abstract: In an embodiment, the invention provides a proximity sensor including a transmitter die, a receiver die, an ASIC die, a lead frame, wire bonds, a first transparent encapsulant, a second transparent encapsulant, and an opaque encapsulant. The transmitter die, the receiver die and the ASIC die are attached to portions of the lead frame. Wire bonds electrically connect the transmitter die, the receiver die, the ASIC die, and the lead frame. The first transparent encapsulant covers the receiver die, the ASIC die, the wire bonds, and a portion of the lead frame. The second transparent encapsulant covers the transmitter die, the wire bonds, and a portion of the lead frame. The opaque encapsulant covers portions of the first and second encapsulants and a portion of the lead frame.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 8, 2011
    Applicant: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Yufeng Yao, Chi Boon Ong, Rani Saravanan
  • Patent number: 8053788
    Abstract: A rod-shaped semiconductor device having a light-receiving or light-emitting function is equipped with a rod-shaped substrate made of p-type or n-type semiconductor crystal, a separate conductive layer which is formed on a part of the surface of the substrate excluding a band-shaped part parallel to the axis of the substrate and has a different conduction type from the conduction type of the substrate, a pn-junction formed with the substrate and separate conductive layer, a band-shaped first electrode which is formed on the surface of the band-shaped part on the substrate and ohmic-connected to the substrate, and a band-shaped second electrode which is formed on the opposite side of the first electrode across the shaft of said substrate and ohmic-connected to the separate conductive layer.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: November 8, 2011
    Assignee: Kyosemi Corporation
    Inventor: Josuke Nakata
  • Patent number: 8053800
    Abstract: A reflection-type photointerrupter of the present invention includes a substrate, a light emitting element and a light receiving element. The substrate includes a first surface, a second surface opposite the first surface, and a first and a second recesses that are open in the first surface side. The light emitting element is arranged in the first recess, while the light receiving element is arranged in the second recess. The light emitting element is capable of emitting light. The light receiving element is capable of receiving the light emitted from the light emitting element and reflected by an object to be detected.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: November 8, 2011
    Assignee: Rohm Co., Ltd.
    Inventor: Tomoharu Horio
  • Patent number: 8053787
    Abstract: A lamp seat includes a metal substrate having opposite first and second surfaces, first and second conductive patterns formed on the first surface, and third and fourth conductive patterns formed on the second surface and connected respectively and integrally to the first and second conductive patterns. A heat-conductive first insulating layer is disposed between the metal substrate and each of the first, second, third and fourth conductive patterns. A heat-conductive second insulating layer is formed over the first insulating layer such that corresponding parts of the first and second conductive patterns are exposed outwardly of the second insulating layer for electrical connection with positive and negative electrodes of a light emitting diode, respectively.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: November 8, 2011
    Inventor: Wen-Chin Shiau
  • Patent number: 8053789
    Abstract: There is provided a method of fabricating a vertical light emitting diode.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: November 8, 2011
    Assignee: Seoul Opto Device Co., Ltd.
    Inventors: Yeo Jin Yoon, Chang Yeon Kim
  • Patent number: 8049238
    Abstract: A light emitting module includes a light source, a light guide plate, and a reflecting mask. The light source includes a circuit board and a light emitting device fixed on the circuit board. The light emitting device includes a plurality of light emitting elements and a control circuit. The light guide plate receives light from the light emitting device and exits from the light guide plate, includes a plurality of light emitting sidewalls, a plurality of reflection walls, and a receiving hole defined in the light guide plate. The receiving hole includes a plurality of light incident sidewalls. The reflecting mask covers the receiving hole, including a bottom surface and a plurality of reflecting surfaces.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: November 1, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Jen-Tsorng Chang
  • Patent number: 8044439
    Abstract: A light-emitting device (1) is provided having a current blocking layer (9) of buried structure, a portion of the current blocking layer (9) having an oxygen concentration higher than that of a light-emitting layer, the current blocking layer being of a thickness of not less than 5 nm and not more than 100 nm. It includes an etching stop layer (24) below the current blocking layer (9), the etching stop layer being good in oxidation resistance. The light-emitting device (1) and its manufacturing method are provided such that the device has its current confinement effect improved and its output increased at lower forward voltage.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: October 25, 2011
    Assignee: Dowa Electronics Materials Co., Ltd.
    Inventors: Ryo Sakamoto, Masatoshi Iwata, Susumu Tsujikawa, Yoshiyuki Kobayashi
  • Patent number: 8044411
    Abstract: The present invention provides a structure in which a pixel region 13 is surrounded by a first sealing material (having higher viscosity than a second sealing material) 16 including a spacer (filler, minute particles and/or the like) which maintains a gap between the two substrates, filled with a few drops of the transparent second sealing material 17a which is spread in the region; and sealed by using the first sealing material 16 and the second sealing material 17.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: October 25, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Junya Maruyama, Toru Takayama, Yumiko Ohno
  • Patent number: 8039369
    Abstract: There is provided a semiconductor light-emitting element and a method of producing the same including high density and high quality quantum dots emitting light at a wavelength of 1.3 ?m. A semiconductor light-emitting element has a first GaAs layer, a second InAs thin film layer having the plurality of InAs quantum dots formed on the first GaAs layer, a third InGaAs layer formed on the second InAs thin film layer having the plurality of InAs quantum dots, and a fourth GaAs layer formed on the third InGaAs layer, wherein the As source is As2.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: October 18, 2011
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventor: Takeru Amano
  • Patent number: 8039866
    Abstract: A mount for a semiconductor device includes a carrier, at least two metal leads disposed on a bottom surface of the carrier, and a cavity extending through a thickness of the carrier to expose a portion of the top surfaces of the metal leads. A semiconductor light emitting device is positioned in the cavity and is electrically and physically connected to the metal leads. The carrier may be, for example, silicon, and the leads may be multilayer structures, for example a thin gold layer connected to a thick copper layer.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: October 18, 2011
    Assignees: Koninklijke Philips Electronics N.V., Philips Lumileds Lighting Company, LLC
    Inventors: M. George Craford, Michael R. Krames
  • Patent number: 8035113
    Abstract: A semiconductor sensor, solar cell or emitter, or a precursor therefor, has a substrate and one or more textured semiconductor layers deposited onto the substrate. The textured layers enhance light extraction or absorption. Texturing in the region of multiple quantum wells greatly enhances internal quantum efficiency if the semiconductor is polar and the quantum wells are grown along the polar direction. Electroluminescence of LEDs of the invention is dichromatic, and results in variable color LEDs, including white LEDs, without the use of phosphor.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: October 11, 2011
    Assignee: The Trustees of Boston University
    Inventors: Theodore D. Moustakas, Jasper S. Cabalu
  • Patent number: 8035114
    Abstract: An optical device includes: a surface-emitting type semiconductor laser section; at least one isolation section formed above the surface-emitting type semiconductor laser section; and a photodetector section formed above the isolation section, wherein the surface-emitting type semiconductor laser section includes a first mirror, an active layer formed above the first mirror and a second mirror formed above the active layer, the photodetector section includes a first contact layer, a photoabsorption layer formed above the first contact layer and a second contact layer formed above the photoabsorption layer, and the isolation section includes a first isolation layer of a conductivity type different from a conductivity type of the second mirror, and a second isolation layer formed above the first isolation layer and having a conductivity type different from the conductivity type of the first contact layer and the first isolation layer.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: October 11, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Tetsuo Nishida
  • Publication number: 20110241549
    Abstract: A light generating system comprising: a plurality of solid state emitters (SSEs) and a stability control system for controlling the spectral stability of the SSEs. In a particular case, the stability control system may comprise: a power regulator to regulate power supplied to a sub-set of the plurality of SSEs; a constant current circuit connected to the power regulator to provide a constant current to the sub-set of SSEs; a current regulation set point connected to the constant current circuit; and a controller configured to set the regulation set point based on metrology relating to the state of the SSEs.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 6, 2011
    Applicant: ATS Automation Tooling Systems Inc.
    Inventor: Gerald R. WOOTTON
  • Patent number: 8030669
    Abstract: There is provided a highly reliable semiconductor light emitting device even in using for street lamps or traffic signals, which can be used in place of electric lamps or fluorescent lamps by protecting from surges such as static electricity or the like. A plurality of light emitting units (1) are formed, by forming a semiconductor lamination portion by laminating semiconductor layers on a substrate so as to form a light emitting layer, by electrically separating the semiconductor lamination portion into a plurality, and by providing a pair of electrodes (19) and (20). The light emitting units (1) are respectively connected in series and/or in parallel with wiring films (3). An inductor (8) absorbing surges is connected, in series, to the plurality of light emitting units (1) connected in series between electrode pads (4a) and (4b) connected to an external power source. For an example, the inductor (8) is formed by arranging the plurality of light emitting units (1) in a whirl shape.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: October 4, 2011
    Assignee: Rohm Co., Ltd.
    Inventors: Yukio Shakuda, Toshio Nishida, Masayuki Sonobe
  • Patent number: 8026524
    Abstract: Semiconductor devices in which one or more LEDs are formed include a dielectric region formed on a n/p region of the semiconductor, and that a metallic electrode can be formed on (at least partially on) the region of dielectric material. A transparent layer of a material such as Indium Tin Oxide can be used to make ohmic contact between the semiconductor and the metallic electrode, as the metallic electrode is separated from physical contact with the semiconductor by one or more of the dielectric material and the transparent ohmic contact layer (e.g., ITO layer). The dielectric material can enhance total internal reflection of light and reduce an amount of light that is absorbed by the metallic electrode.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: September 27, 2011
    Assignee: Bridgelux, Inc.
    Inventors: Frank T. Shum, William W. So, Steven D. Lester
  • Patent number: 8008646
    Abstract: A light emitting diode is disclosed, wherein the light extraction efficiency of a device can be enhanced by forming patterns on a substrate, a light emitting structure is formed on the substrate formed with the patterns, the substrate is removed from the light emitting structure, and patterns corresponding to those formed on the substrate are formed on the light emitting structure.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: August 30, 2011
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventor: See jong Leem
  • Patent number: 8003995
    Abstract: A semiconductor optical device where the leak current due to the double injection of carriers may be suppressed and a simplified process to form the device are disclosed. The device 10 provides, on the n-type InP substrate, a mesa and a burying region formed so as to bury the mesa. The mesa includes the first cladding layer, the active layer, the tunnel junction layer and the second cladding layer on the n-type InP substrate in this order. The tunnel junction layer comprises an n-type layer coming in contact with the active layer and a p-type layer between the active layer and the n-type layer. The n-type layer has a carrier concentration higher than that of the second cladding layer, while, the p-type layer may have the band gap energy greater than that of the second cladding layer.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: August 23, 2011
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Michio Murata
  • Publication number: 20110200066
    Abstract: A chip module package structure applied to an optical input device includes a cover body, a first chip module, and a second chip module. The first chip module and the second chip module are respectively combined with the cover body, the first chip module has an optical source, and the second chip module has an optical sensor. Further, the optical source and the optical sensor form a preset relative spatial position relation, such that a part of light emitted by the optical source is received by the optical sensor after at least one reflection.
    Type: Application
    Filed: July 12, 2010
    Publication date: August 18, 2011
    Applicant: PIXART IMAGING INC.
    Inventors: Kuo-Hsiung Li, Hung-Ching Lai
  • Patent number: 7999269
    Abstract: A light emitting apparatus includes a light emitting element formed on a surface of a substrate and a light receiving element formed on an area other than an area overlapping the light emitting element on the surface of the substrate, the light receiving element detecting light emitted from the light emitting element.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: August 16, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Toshiaki Miyao, Hiroaki Jo
  • Patent number: 7994518
    Abstract: An LED includes a substrate having a substantially flat substrate surface, a plurality of electrodes extending through the substrate, an LED chip configured for emitting light, a first and a second coplanar reflective layers formed on the surface, and a light pervious encapsulation member mounted on the substrate surface. The light pervious encapsulation member covers the LED chip and the first reflective layer and a portion of the second reflective layer. The LED chip is mounted on the substrate surface and electrically connected with the electrodes. The first reflective layer and the second reflective layer are configured for reflecting the light emitted from the LED chip.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: August 9, 2011
    Assignee: Foxsemicon Integrated Technology, Inc.
    Inventors: Chun-Wei Wang, Hung-Kuang Hsu, Wen-Jang Jiang