Discrete Light Emitting And Light Responsive Devices Patents (Class 257/82)
  • Patent number: 8847244
    Abstract: A photpcoupler includes: a light emitting element; a first photodiode array; a second photodiode array; a third photo diode array; an enhancement-mode MOSFET; a first depletion-mode MOSFET; and a second depletion mode MOSFET. The light emitting element converts the input electrical signal into the optical signal. A drain current of the enhancement-mode MOSFET is supplied to the external load when the optical signal is ON. A drain current of the first depletion-mode MOSFET is supplied to the external load when the optical signal is OFF and a voltage passing through the second depletion-mode MOSFET switched to the ON state is supplied to the gate of the first depletion-mode MOSFET. And the drain current of the first depletion-mode MOSFET is larger than a drain current of the first depletion-mode MOSFET when a gate voltage of the first depletion-mode MOSFET is zero.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: September 30, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yoichiro Ito
  • Publication number: 20140284629
    Abstract: According to one embodiment, a photocoupler includes a light emitting element, a light receiving element, a bonding layer, input terminals, output terminals and a molded resin body. A light emitting element includes a transparent support substrate, a semiconductor stacked body, and first and second electrodes. A light receiving element includes a light reception surface, a first electrode, and a second electrode. A bonding layer is configured to bond the first surface of the support substrate to the light reception surface side of the light receiving element. The bonding layer is transparent and insulative. Input terminals are connected to the first and second electrodes of the light emitting element. Output terminals are connected to the first and second electrodes of the light receiving element. The light reception surface is included in the light emitting surface. An input electrical signal is converted into an output electrical signal.
    Type: Application
    Filed: September 12, 2013
    Publication date: September 25, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoya Takai, Eiji Nakashima
  • Patent number: 8841145
    Abstract: System for wafer-level phosphor deposition. A method for phosphor deposition on a semiconductor wafer that has a plurality of LED dies includes the operations of covering the semiconductor wafer with a selected thickness of photo resist material, removing portions of the photo resist material to expose portions of the semiconductor wafer so that electrical contacts associated with the plurality of LED dies remain unexposed, and depositing phosphor on the exposed portions of the semiconductor wafer.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: September 23, 2014
    Assignee: Bridgelux, Inc.
    Inventor: Tao Xu
  • Patent number: 8835908
    Abstract: Disclosed is an organic light-emitting device (OLED), wherein a lower electrode, an organic emitting unit, an upper electrode, and a light enhance layer are subsequently formed between a bottom substrate and a top substrate. The light enhance layer has higher refractive index, between 2 and 3, than that of the top substrates, thereby efficiently improving the luminance intensity of the OLED.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: September 16, 2014
    Assignee: Innolux Corporation
    Inventors: Hsiang-Lun Hsu, Hsin-Yuan Su
  • Patent number: 8829539
    Abstract: A luminous vehicle glazing, containing: a first sheet containing a mineral or an organic glass having a first main face, a second main face, and an injection edge; a peripheral light source with an emitting face, which faces the injection edge; a guided-light extracting element; a peripheral functional element, bonded to the first sheet, which is fluid-tight, including a cavity for placing the peripheral light source; a covering element, which covers the cavity and the peripheral light source, which is fluid-tight, and which is selected from i) a cap combined with an interfacial element, for interfacial fluid-tightness or ii) a fluid-tight sealing mastic covering the peripheral light source and sealing the peripheral functional element. In addition, a method of manufacturing the luminous vehicle glazing.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: September 9, 2014
    Assignee: Saint-Gobain Glass France
    Inventors: Christophe Kleo, Bastien Grandgirard, Alexandre Richard, Adele Verrat-Debailleul
  • Patent number: 8822984
    Abstract: Methods and systems for reducing the deleterious effects of gate bias stress on the drain current of an organic device, such as an organic thin film transistor, are provided. In a particular aspect, the organic layer of an organic device is illuminated with light having characteristics selected to reduce the gate bias voltage effects on the drain current of the organic device. For instance, the wavelength and intensity of the light are selected to provide a desired recovery of drain current of the organic device. If the characteristics of the light are appropriately matched to the organic device, recovery of the deleterious effects caused by gate bias voltage stress effects on the drain current of the organic device can be achieved. In a particular aspect, the organic device is selectively illuminated with light to operate the organic device in multiple modes of operation.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: September 2, 2014
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventor: Lucile C. Teague
  • Patent number: 8822245
    Abstract: Methods of packaging a semiconductor light emitting device include providing a substrate having the semiconductor light emitting device on a front face thereof. A first optical element is formed from a first material on the front face proximate the semiconductor light emitting device but not covering the semiconductor light emitting device and a second optical element is formed from a second material, different from the first material, over the semiconductor light emitting device and the first optical element. Packaged semiconductor light emitting devices are also provided.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: September 2, 2014
    Assignee: Cree, Inc.
    Inventor: Nicholas W. Medendorp, Jr.
  • Publication number: 20140239315
    Abstract: The invention provides a package structure of optical transceiver component, comprising: a metal base; a plurality of pins, at least one optical emitting diode and/or at least one optical receiving diode; wherein the pins are provided and passed through the metal base and insulated with the metal base by using an insulating material; the optical emitting diode and the optical receiving diode are each mounted on the metal base through a sub-mount, respectively. The optical emitting diode/optical receiving diode is connected to the pins neighboring therewith by a wire directly or through the sub-mount, when set the top surface of the pins be a reference level, at least one of the top surfaces of the optical emitting diode, the optical receiving diode, and sub-mount is flush with the reference level.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 28, 2014
    Applicant: LUXNET CORPORATION
    Inventors: Yun-Cheng HUANG, Chien-Wen LU, Chung Hsin FU, Chi-Min TING, Tsing-Chow WANG
  • Publication number: 20140239314
    Abstract: A photocoupler includes: a light emitting element; a first photodiode array; a second photodiode array; a third photo diode array; an enhancement-mode MOSFET; a first depletion-mode MOSFET; and a second depletion mode MOSFET. The light emitting element converts the input electrical signal into the optical signal. A drain current of the enhancement-mode MOSFET is supplied to the external load when the optical signal is ON. A drain current of the first depletion-mode MOSFET is supplied to the external load when the optical signal is OFF and a voltage passing through the second depletion-mode MOSFET switched to the ON state is supplied to the gate of the first depletion-mode MOSFET. And the drain current of the first depletion-mode MOSFET is larger than a drain current of the first depletion-mode MOSFET when a gate voltage of the first depletion-mode MOSFET is zero.
    Type: Application
    Filed: July 11, 2013
    Publication date: August 28, 2014
    Inventor: Yoichiro ITO
  • Patent number: 8816361
    Abstract: Disclosed is a structure combining a solar cell and a light-emitting element. The structure includes a light-emitting device having a substrate and a light-emitting structure disposed on the first surface of the substrate. The substrate includes a plurality of cones formed on a second surface opposite to the first surface. The structure also includes a first conductive layer, disposed on the second surface, a power convention layer disposed on the first conductive layer, a second conductive layer disposed on the power conversion layer, and a patterned transparent layer disposed on the second conductive layer. The patterned transparent layer includes a surface consisting of a plurality of cones and disposed on a side opposite to the second conductive layer.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: August 26, 2014
    Assignee: Phecda Technology Co. Ltd.
    Inventor: Yong-Fa Huang
  • Patent number: 8816360
    Abstract: A multi-chip package includes a lower substrate; at least two semiconductor chips stacked over the lower substrate and each defined with a via hole; an upper substrate coupled to a semiconductor chip positioned uppermost among the semiconductor chips; a light emitting part coupled to the lower substrate corresponding to the via hole; an electrowetting liquid lens coupled to a lower surface of the upper substrate for receiving a signal transferred from the light emitting part through the via hole; a light receiving part coupled to a sidewall of the via hole of each semiconductor chip configured to receive a signal from the electrowetting liquid lens.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: August 26, 2014
    Assignee: SK Hynix Inc.
    Inventor: Seung Yeop Lee
  • Patent number: 8816357
    Abstract: An optical printer head has an array of lenses that project light emitted by an array of LEDs onto a charged photosensitive drum to form a latent image on the drum surface. A resin film adhered to the exposed surfaces of the lenses prevents chemical reaction between nitric acid, formed as a consequence of ozone produced during electric charging of the photosensitive drum, and alkali components on the surfaces of the lenses thereby preventing clouding of the lens surfaces and dimming of the projected light. The resin film has a thickness of 10 to 100 microns and may be formed of polyvinyl chloride, polyethylene terephthalate or polymethyl meta acrylate.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: August 26, 2014
    Assignee: Seiko I Infotech Inc.
    Inventors: Kazuya Utsugi, Toshikazu Suzuki
  • Patent number: 8816382
    Abstract: There is provided a semiconductor light-emitting element which has an electrode structural body including a connection electrode and a wiring electrode connected to the connection electrode, the wiring electrode stretching along a surface of a semiconductor layered body while being in partial contact with the surface of the semiconductor layered body exposed from an opening formed on the insulation layer. The area of a contact region between the wiring electrode and the semiconductor layered body increases, from a connection end which is connected to the connection electrode, along a direction in which the wiring electrode stretches.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 26, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Ji-Hao Liang, Ryosuke Kawai
  • Publication number: 20140225131
    Abstract: A display may include a color filter layer, a liquid crystal layer, and a thin-film transistor layer. A camera window may be formed in the display to accommodate a camera. The camera window may be formed by creating a notch in the thin-film transistor layer that extends inwardly from the edge of the thin-film transistor layer. The notch may be formed by scribing the thin-film transistor layer around the notch location and breaking away a portion of the thin-film transistor layer. A camera window may also be formed by grinding a hole in the display. The hole may penetrate partway into the thin-film transistor layer, may penetrate through the transistor layer but not into the color filter layer, or may pass through the thin-film transistor layer and partly into the color filter layer.
    Type: Application
    Filed: January 9, 2014
    Publication date: August 14, 2014
    Applicant: Apple Inc.
    Inventors: Eric L. Benson, Bryan W. Posner, Christopher L. Boitnott, Dinesh C. Mathew, Jun Qi, Robert Y. Cao, Victor H. Yin
  • Patent number: 8803164
    Abstract: To provide a solid-state image sensing device or a semiconductor display device, which can easily obtain the positional data of an object without contact. Included are a plurality of first photosensors on which light with a first incident angle is incident from a first incident direction and a plurality of second photosensors on which light with a second incident angle is incident from a second incident direction. The first incident angle of light incident on one of the plurality of first photosensors is larger than that of light incident on one of the other first photosensors. The second incident angle of light incident on one of the plurality of second photosensors is larger than that of light incident on one of the other second photosensors.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: August 12, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Takayuki Ikeda
  • Patent number: 8803188
    Abstract: One object is to provide a light-emitting element which overcomes the problems of electrical characteristics and a light reflectivity have been solved. The light-emitting element is manufactured by forming a first electrode including aluminum and nickel over a substrate; by forming a layer including a composite material in which a metal oxide is contained in an organic compound so as to be in contact with the first electrode after heat treatment is performed with respect to the first electrode; by forming a light-emitting layer over the layer including a composite material; and by forming a second electrode which has a light-transmitting property over the light-emitting layer. Further, the first electrode is preferably formed to include the nickel equal to or greater than 0.1 atomic % and equal to or less than 4.0 atomic %.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: August 12, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nozomu Sugisawa, Toshiki Sasaki
  • Patent number: 8796816
    Abstract: A semiconductor module is provided which is capable of lowering surges caused when switching elements are switched on and off. The module has a plurality of lead frames, switching elements, electronic components, and a sealing member. The switching elements are electrically connected to the lead frames respectively. Part of the lead frames, the switching elements, and the electronic components are sealed by the sealing member. The electronic components are mounted on primary surfaces of the lead frames respectively.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: August 5, 2014
    Assignee: Denso Corporation
    Inventors: Yuji Hayashi, Yuuichi Handa
  • Patent number: 8796699
    Abstract: Embodiments of the invention pertain to a method and apparatus for sensing infrared (IR) radiation. In a specific embodiment, a night vision device can be fabricated by depositing a few layers of organic thin films. Embodiments of the subject device can operate at voltages in the range of 10-15 Volts and have lower manufacturing costs compared to conventional night vision devices. Embodiments of the device can incorporate an organic phototransistor in series with an organic light emitting device. In a specific embodiment, all electrodes are transparent to infrared light. An IR sensing layer can be incorporated with an OLED to provide IR-to-visible color up-conversion. Improved dark current characteristics can be achieved by incorporating a poor hole transport layer material as part of the IR sensing layer.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: August 5, 2014
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Franky So, Do Young Kim
  • Patent number: 8796708
    Abstract: A light emitting semiconductor device comprising an LED having an emission aperture located on a surface of the LED and the emission aperture has a size that is smaller than a surface area of the LED where the emission aperture is formed. The device further includes a reflector surrounding both side walls, a bottom surface, and portions of a surface of the LED where the emission aperture is formed or surrounding the bottom surface and portions of the surface of the LED where the emission aperture is formed so that an area on the surface uncovered by the reflector is the emission aperture and is smaller than the area of the LED. Alternatively, in the light emitting semiconductor, the surface of the LED substantially aligned with the emission aperture may be roughened and the surface of the LED beyond the emission aperture may be smooth. The surface of the LED beyond the emission aperture may also be covered by a low loss reflector.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: August 5, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Frank Shum
  • Publication number: 20140209928
    Abstract: A light source assembly, including one or more light emitting diodes disposed within a hermetically sealed enclosure, wherein the light emitting diodes are in the form of one or more unpackaged planar semiconductor dies mounted on an inner surface of a wall of the enclosure, wherein the wall of the enclosure includes electrically conductive tracks that connect electrical contacts of the unpackaged planar semiconductor dies to corresponding electrical contacts external of the sealed enclosure.
    Type: Application
    Filed: September 21, 2012
    Publication date: July 31, 2014
    Inventors: Annette Teng, Steven Grant Duvall
  • Publication number: 20140203239
    Abstract: Semiconductor device assemblies having solid-state transducer (SST) devices and associated semiconductor devices, systems, and are disclosed herein. In one embodiment, a method of forming a semiconductor device assembly includes forming a support substrate, a transfer structure, and a plurality semiconductor structures between the support substrate and the transfer structure. The method further includes removing the support substrate to expose an active surface of the individual semiconductor structures and a trench between the individual semiconductor structures. The semiconductor structures can be attached to a carrier substrate that is optically transmissive such that the active surface can emit and/or receive the light through the carrier substrate. The individual semiconductor structures can then be processed on the carrier substrate with the support substrate removed.
    Type: Application
    Filed: January 22, 2013
    Publication date: July 24, 2014
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Martin F. Schubert, Vladimir Odnoblyudov, Scott D. Schellhammer
  • Patent number: 8785264
    Abstract: According to an embodiment of the disclosed technology, a manufacture method of an organic thin film transistor array substrate is provided. The method comprises: forming a first pixel electrode, a source electrode, a drain electrode and a data line in a first patterning process; forming an organic semiconductor island and a gate insulating island in a second patterning process; forming a data pad region in a third patterning process; and forming a second pixel electrode, a gate electrode and a gate line in a fourth patterning process.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: July 22, 2014
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Xuehui Zhang
  • Patent number: 8779361
    Abstract: An optical proximity sensor is provided that comprises an infrared light emitter an infrared light detector, a first molded optically transmissive infrared light pass component disposed over and covering the light emitter and a second molded optically transmissive infrared light pass component disposed over and covering the light detector. Located in-between the light emitter and the first molded optically transmissive infrared light pass component, and the light detector and the second molded optically transmissive infrared light pass component is a substantially optically non-transmissive infrared light barrier component. The infrared light barrier component substantially attenuates or blocks the transmission of undesired direct, scattered or reflected light between the light emitter and the light detector, and thereby minimizes optical crosstalk and interference between the light emitter and the light detector.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: July 15, 2014
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: James Costello, Rani Saravanan, Wee Sin Tan
  • Publication number: 20140191253
    Abstract: An optoelectronic device includes an optoelectronic component that receives or generates radiation, a frame having a cavity, the optoelectronic component being arranged in said cavity, a connection carrier to which the optoelectronic component is fixed, and a cover covering the cavity and forming a radiation passage area for the radiation, wherein a beam path from the optoelectronic component to the radiation passage area is free of an encapsulation material for the optoelectronic component.
    Type: Application
    Filed: May 19, 2011
    Publication date: July 10, 2014
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Stephan Haslbeck, Markus Foerste, Michael Schwind, Martin Haushalter, Hubert Halbritter, Frank Möllmer
  • Patent number: 8766284
    Abstract: The optoelectronics chip-to-chip interconnect system includes at least one packaged chip connected on the printed-circuit-hoard (PCB) with at least one other packaged chip, opticalelectrical (O-E) conversion means, and waveguide-board. Single to multiple chips can be interconnected using this technique. Packaged chip includes semiconductor die and package based on ball-grid array or chipscale-package. O-E board includes optoelectronics and multiple electrical contacts on both board sides. Waveguide board includes electrodes transferring signals from O-E board to PCB, and the flex optical waveguide, stackable onto the PCB, to guide optical signals chip-to-chip. Electrodes can be connected to the PCB instead of on waveguide hoard. The chip-to-chip interconnection system is pin-free, compatible with the PCB.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: July 1, 2014
    Assignee: Banpil Photonics Inc.
    Inventor: Achyut Kumar Dutta
  • Publication number: 20140175462
    Abstract: A method for producing a plurality of optoelectronic semiconductor components in combination is specified. A plurality of radiation-emitting and radiation-detecting semiconductor chips are applied on a carrier substrate. The semiconductor chips are potted with a respective potting compound. The potting compounds are subsequently severed by sawing between adjacent semiconductor chips. A common frame is subsequently applied to the carrier substrate The common frame has a plurality of chambers open toward the top. The frame is arranged in such a way that a respective semiconductor chip is arranged in a respective chamber of the frame. A semiconductor component produced in such a way and the use of the semiconductor component are furthermore specified.
    Type: Application
    Filed: June 21, 2012
    Publication date: June 26, 2014
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Markus Lermer, Martin Haushalter
  • Patent number: 8748907
    Abstract: According to one embodiment, a semiconductor device includes an input lead, a light emitting element, an output lead, a light receiving element and a resin molded body. The input lead includes an input inner lead portion, an input outer lead portion and a first silver layer. The light emitting element is provided on the first silver layer. The output lead includes an output inner lead portion, an output outer lead portion and a second silver layer. The second silver layer includes an upper surface portion and a side surface portion. The light receiving element is provided on the second silver layer and is capable of receiving light. The output lead includes a cutting surface extending from the side surface portion of the second silver layer to the side surface of the output inner lead portion. The resin molded body covers the cutting surface.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: June 10, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takeshi Biwa
  • Patent number: 8748902
    Abstract: The present invention relates to a method of manufacturing an LED device which emits light of multi-wavelengths. The invention also relates to a method of manufacturing LED devices which emit light of high quality from throughout the whole surface in a uniform manner. In particular, utilizing the manufacturing method of LED devices which emit light of multi-wavelengths makes it possible to produce LED devices of high quality in a simple and cost-efficient way, not by using adhesives, but by a sputtering or PLD method. In addition, since the characteristics of the desired emitted light can be controlled by controlling the amount and type of the phosphors during the manufacture of sputtering targets, high quality LED devices can be manufactured easily.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: June 10, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo Chul Yun, Geum Jae Jo, Young Chun Kim, Dong Hyun Cho
  • Patent number: 8742435
    Abstract: The LED lighting device in this invention comprises a light source, a first face sheet, and a reflection sheet. The light source comprises a plurality of LED chips which are configured to emit lights having wavelengths which are different from each other. The first face sheet has a rear surface. The rear surface is defined as a diffusing and reflecting surface which is being configured to diffuse and reflect the lights which are emitted from the LED chips. The first face sheet is provided with a plurality of apertures. The reflection sheet has a second reflecting surface. The second reflecting surface is configured to reflect the light which is reflected from the diffusing and reflecting surface of the first face sheet toward the first face sheet. Each the aperture is shaped to pass the light which is reflected from the second reflecting surface.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: June 3, 2014
    Assignee: Panasonic Corporation
    Inventors: Kenichiro Tanaka, Akira Fukuoka
  • Patent number: 8742559
    Abstract: To suppress the reduction in reliability of a resin-sealed semiconductor device. A first cap (member) and a second cap (member) with a cavity (space formation portion) are superimposed and bonded together to form a sealed space. A semiconductor including a sensor chip (semiconductor chip) and wires inside the space is manufactured in the following way. In a sealing step of sealing a joint part between the caps, a sealing member is formed of resin such that an entirety of an upper surface of the second cap and an entirety of a lower surface of the first cap are respectively exposed. Thus, in the sealing step, the pressure acting in the direction of crushing the second cap can be decreased.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: June 3, 2014
    Assignee: Renesas Electronics Corporation
    Inventor: Noriyuki Takahashi
  • Patent number: 8742432
    Abstract: The invention provides a metal substrate and a light source device ensuring that a semiconductor chip working as a light source can be firmly joined by using a metal joining material, such that heat generated in the mounted semiconductor chip can be efficiently dissipated through a metal plate. The metal substrate includes a heat dissipating metal plate made of a metal except for Au, an insulating resin-made white film stacked on a part of the heat dissipating metal plate, and a light source mounting surface-forming layer stacked on another part of the heat dissipating metal plate. The metal substrate is such that the light source mounting surface-forming layer is a metal layer directly contacting the heat dissipating metal plate, and the light source mounting surface is a surface of an Au layer which is the outermost layer of the light source mounting surface-forming layer.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: June 3, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshihito Sato, Nobuhiro Arai, Jun Matsui, Shingetsu Yamada, Shuuji Suzuki
  • Patent number: 8735185
    Abstract: The present invention relates to a method of fabricating a patterned substrate for fabricating a light emitting diode (LED), the method including forming an aluminum layer on a substrate, forming an anodic aluminum oxide (AAO) layer having a large number of holes formed therein by performing an anodizing treatment of the aluminum layer, partially etching a surface of the substrate using the aluminum layer with the large number of the holes as a shadow mask, thereby forming patterns, and removing the aluminum layer from the substrate.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: May 27, 2014
    Assignee: Seoul Opto Device Co., Ltd.
    Inventors: Yeo Jin Yoon, Chang Yeon Kim
  • Patent number: 8729572
    Abstract: A light emitting diode package includes an electrically insulated base, first and second electrodes, an LED chip, a voltage stabilizing module, and an encapsulative layer. The base has a first surface and an opposite second surface. The first and second electrodes are formed on the first surface of the base. The LED chip is electrically connected to the first and second electrodes. The voltage stabilizing module is formed on the first surface of the base, positioned between and electrically connected to the first and second electrodes. The voltage stabilizing module connects to the LED chip in reverse parallel and has a polarity arranged opposite to that of the LED chip. The voltage stabilizing module has an annular shape and encircles the first electrode. The encapsulative layer is formed on the base and covers the LED chip.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: May 20, 2014
    Assignee: Advanced Optoelectronic Technology, Inc.
    Inventors: Hou-Te Lin, Chao-Hsiung Chang
  • Patent number: 8723336
    Abstract: According to an embodiment, a semiconductor light emitting device includes a light emitting body including a semiconductor light emitting layer, a support substrate supporting the light emitting body, and a bonding layer provided between the light emitting body and the support substrate, the bonding layer bonding the light emitting body and the support substrate together. The device also includes a first barrier metal layer provided between the light emitting body and the bonding layer, and an electrode provided between the light emitting body and the first barrier metal layer. The first barrier layer includes a first layer made of nickel and a second layer made of a metal having a smaller linear expansion coefficient than nickel, and the first layer and the second layer are alternately disposed in a multiple-layer structure. The electrode is electrically connected to the light emitting body.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: May 13, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yasuharu Sugawara
  • Patent number: 8723188
    Abstract: A light emitting diode includes a substrate comprising a plurality of first grooves and a plurality of first convex parts formed on a surface of the substrate, with the first groove formed between two neighboring first convex parts; a semiconductor structure formed on the substrate comprising a plurality of second convex parts corresponding to the plurality of first grooves and a plurality of second grooves corresponding to the plurality of first convex parts; a transparent conductive layer formed on the semiconductor structure and configured to transmit a current to the plurality of second convex parts; a first electrode electrically connected with the semiconductor structure; and a second electrode electrically connected with the transparent conductive layer. A method for preparing the light emitting diode is also provided.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: May 13, 2014
    Assignees: Shenzhen BYD Auto R&D Company Limited, BYD Company Limited
    Inventors: Chunlin Xie, Xilin Su, Hongpo Hu, Wang Zhang
  • Patent number: 8716722
    Abstract: A photosensor chip package structure comprises a substrate, a light-emitting chip and a photosensor chip including an ambient light sensing unit and a proximity sensing unit. The substrate has a first basin, a second basin and a light-guiding channel. The openings of the first and second basins respectively face different directions. One opening of the light-guiding channel and the opening of the first basin face the same direction. The other opening of the light-guiding channel interconnects with the second basin. The light-emitting chip is arranged in the first basin. The photosensor chip is arranged in the second basin. The light-guiding channel conducts the light generated by the light-emitting chip and the ambient light to the photosensor chip. The photosensor chip operates as soon as it receives the light generated by the light-emitting chip and/or the ambient light.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: May 6, 2014
    Assignee: TXC Corporation
    Inventor: Yin-Ming Peng
  • Patent number: 8716739
    Abstract: A package includes a substrate with an attached emitting IC chip and receiving IC chip. The emitting IC chip includes an optical emitter, and the receiving IC chip includes a main optical sensor and a secondary optical sensor. A case is provided with a bottom portion and a peripheral wall portion to cover the IC chips, wherein the edge of the peripheral wall portion is mounted to the substrate. The bottom portion of the case includes a main opening above the main optical sensor and a secondary opening above the optical emitter. An opaque material is interposed between the case and the receiving IC chip to isolate the main optical sensor from the secondary optical sensor and delimiting a chamber containing the secondary optical sensor and the optical emitter. The chamber is optically isolated from the main optical sensor and main opening, and may be filled with a transparent material.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 6, 2014
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventors: Romain Coffy, Julien Vittu
  • Publication number: 20140117383
    Abstract: An optocoupler having optical lens layer is disclosed. The optocoupler may comprise an optical emitter, an optical receiver, an isolation layer, a lens layer and a substantially transparent encapsulant. The lens layer may be integrally formed within the optical receiver. Alternatively, the lens layer may be formed integrally with the isolation layer, or the lens layer may be an optical film attached on the optical receiver. The substantially transparent encapsulant may encapsulate at least partially the optical emitter, the optical receiver and the isolation layer. The isolation layer may be inserted to the substantially transparent encapsulant, making the substantially transparent encapsulant into two compartments. In another embodiment, an electronic system having optocoupler is disclosed.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Thiam Siew Tay, Premkumar Jeromerajan
  • Publication number: 20140117357
    Abstract: Embodiments provide a light emitting device package including a package body having a top-opened cavity disposed in at least a portion thereof, a first electrode layer and a second electrode layer electrically isolated from the package body with an insulating layer interposed therebetween, the first electrode layer and the second electrode layer being electrically isolated from each other at a bottom surface of the cavity, a light emitting device placed on the bottom surface of the cavity configured to emit light through the open region of the cavity, and a sensor placed on at least a portion of the package body at the outside of the cavity configured to measure output of the light emitting device.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 1, 2014
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Bum Chul CHO, Moon Sub KIM, Jin Kwan KIM
  • Patent number: 8704242
    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: March 20, 2012
    Date of Patent: April 22, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Harue Nakashima, Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo
  • Patent number: 8704241
    Abstract: A light-emitting system includes a first power input terminal and a second power input terminal and five rectifying devices coupled between the two power input terminals. The first and second power input terminals may receive an external power input. The first rectifying device is coupled between the first power input terminal and a first intermediate contact. The second rectifying device is coupled between the second power input terminal and the first intermediate contact. The third rectifying device is coupled between a second intermediate contact and the second power input terminal. The fourth rectifying device is coupled between the second intermediate contact and the first power input terminal. The fifth rectifying device is coupled between the first intermediate contact and the second intermediate contact. The fifth rectifying device is configured to allow a current flow from the first intermediate contact to the second intermediate contact and to emit light in response to the current flow.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: April 22, 2014
    Assignee: Epistar Corporation
    Inventors: Wen-Yung Yeh, Yu-Chen Yu, Hsi-Hsuan Yen, Jui-Ying Lin
  • Patent number: 8698169
    Abstract: An organic light emitting diode (OLED) display includes a first electrode including a conductive black layer, a second electrode facing the first electrode, and an organic emission layer provided between the first electrode and the second electrode.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: April 15, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyun-Eok Shin
  • Publication number: 20140097451
    Abstract: A proximity sensor and a circuit layout method thereof are disclosed. The proximity sensor includes a light sensor and a light emitting unit. The light sensor includes a semiconductor substrate and a bonding pad. The semiconductor substrate has a first circuit region. At least one semiconductor device is disposed in the first circuit region. The bonding pad is disposed above the first circuit region and a gap is existed between the bonding pad and the at least one semiconductor device. The bonding pad is connected to the semiconductor substrate out of the first circuit region. The light emitting unit is disposed on the bonding pad of the light sensor.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 10, 2014
    Applicant: uPI Semiconductor Corp.
    Inventor: Ping-Yuan Lin
  • Patent number: 8692301
    Abstract: The present invention provides a photodiode comprising a p-i-n or pn junction at least partly formed by first and second regions (2) made of semiconductor materials having opposite conductivity type, wherein the p-i-n or pn junction comprises a light absorption region (11) for generation of charge carriers from absorbed light. One section of the p-i-n or pn junction is comprises by one or more nanowires (7) that are spaced apart and arranged to collect charge carriers generated in the light absorption region (11). At least one low doped region (10) made of a low doped or intrinsic semiconductor material provided between the nanowires (7) and one of said first region (1) and said second region (2) enables custom made light absorption region and/or avalanche multiplication region of the active region (9).
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: April 8, 2014
    Assignee: QuNano AB
    Inventors: Lars Samuelson, Federico Capasso, Jonas Ohlsson
  • Patent number: 8686443
    Abstract: An organic light-emitting display device comprises a substrate including a plurality of light-emitting regions separated by a non-light-emitting region, an organic light-emitting element disposed on each of the light-emitting regions, and a photoactive element disposed on the non-light-emitting region.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: April 1, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Byung-Uk Han
  • Publication number: 20140084307
    Abstract: An optoelectronic device having an optoelectronic component that receives or generates radiation and has a main radiation passage surface, wherein the component is assigned an aperture which defines a radiation cone for radiation passing through the main radiation passage surface, and the aperture has an inner surface having a region inclined away from the main radiation passage surface.
    Type: Application
    Filed: April 15, 2011
    Publication date: March 27, 2014
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventor: Hubert Halbritter
  • Publication number: 20140084306
    Abstract: According to an embodiment, a semiconductor device including a first body molded with a first resin, a second body molded with the first resin, and a third body molded with a second resin. The first body includes a first light emitting element, a primary lead, a first light receiving element, and a secondary lead. The second body includes a second light emitting element, a primary lead, a second light receiving element, and a secondary lead. The third body includes the first body and the second body. At least one common lead includes the primary leads or the secondary leads, and a portion extending between the first body and the second body, the portion being covered with a first thin film linked to the first body and a second thin film linked to the second body.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 27, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Atsushi TAKESHITA
  • Publication number: 20140084305
    Abstract: A photocoupler includes: a light emitting element; a light receiving element; and a bonding layer. The light emitting element includes a semiconductor stacked body, and a first and a second electrode. The semiconductor stacked body includes a light emitting layer. The light receiving element includes a first and a second electrode on a side of a light receiving surface. The bonding layer bonds the light emitting element and the light receiving surface, and has transparency and insulating property.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 27, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kenji Fujimoto, Masanobu Iwamoto
  • Publication number: 20140077233
    Abstract: A multi-functional optoelectronic apparatus which comprises an integrated circuit (IC) wafer, respective optoelectronic components which has one or more Input port(s) to receive external command signals to drive the optoelectronic apparatus. Examples of some of the optoelectronic apparatus include an IOLED (Input/Output Light Emitting Diode including visible light and invisible light), IOPD (Input/Output Photo Diode), IOPT (Input/Output Photo Transistor), IOLS (Input/Output Light Sensor), IORS (Input/Output Reflective Sensor), IOPI (Input/Output Photo Interrupter) and IORM (Input/Output Receiver Module). The multi-functional optoelectronic apparatus may drive external peripheral(s) such as speakers, motors or other devices.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 20, 2014
    Inventor: Khok Hing-Wai
  • Publication number: 20140061678
    Abstract: According to an embodiment, a semiconductor device includes a primary side lead, a light-emitting element electrically connected to the primary side lead, and a thyristor-type light-receiving element. The light-receiving element includes a first face for detecting light emitted from the light-emitting element, and a second face provided on an opposite side of the first face. The light-receiving element includes an anode electrode, a cathode electrode, and a gate electrode that are provided on the first face. The device further includes a secondary side first lead electrically connected to the anode electrode, a secondary side second lead electrically connected to the cathode electrode, and a secondary side third lead electrically connected to the gate electrode. The secondary side third lead is connected to the second face of the light-receiving element.
    Type: Application
    Filed: March 18, 2013
    Publication date: March 6, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Toshiyuki KOTANI