With Electrical Isolation Means In Integrated Circuit Structure Patents (Class 257/93)
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Patent number: 8461604Abstract: An optoelectronic module is described including a carrier substrate and a plurality of radiation-emitting semiconductor components. The carrier substrate includes structured conductor tracks. The radiation-emitting semiconductor components each include an active layer suitable for generating electromagnetic radiation, a first contact area and a second contact area. The first contact area is in each case arranged on that side of the radiation-emitting semiconductor components that is remote from the carrier substrate. The radiation-emitting semiconductor components are provided with an electrically insulating layer, which in each case has a cutout in a region of the first contact area. Conductive structures are arranged in regions on the electrically insulating layer.Type: GrantFiled: August 25, 2009Date of Patent: June 11, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Bert Braune, Jörg Erich Sorg, Walter Wegleiter, Karl Weidner, Oliver Wutz
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Patent number: 8455893Abstract: A light-emitting apparatus can prevent a shadow mask from contacting a light-emitting medium to suppress damage of the medium, by using a conductive layer formed on a device isolation layer as a pressing member for the shadow mask, and can attain more secure conduction between a second electrode and an auxiliary electrode. The apparatus can be formed by forming first and auxiliary electrodes on a substrate; forming a device isolation layer between the first electrodes and forming an opening on each of the first and auxiliary electrodes; forming a conductive layer on the device isolation layer to cover the openings above the auxiliary electrodes; bringing a shadow mask into contact with the conductive layer and forming a light-emitting medium in a thickness smaller than the thickness of the conductive layer; and forming a second electrode to cover the light-emitting medium, the device isolation layer, and the conductive layer.Type: GrantFiled: June 20, 2011Date of Patent: June 4, 2013Assignee: Canon Kabushiki KaishaInventor: Naoyuki Ito
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Publication number: 20130135571Abstract: The present invention discloses a liquid crystal panel, an OLED display panel, a glass substrate and the manufacturing method thereof, wherein, the liquid crystal panel comprises the opposite first substrate and second substrate. The first substrate and the second substrate respectively include a glass substrate. At least one of the first substrate and the second substrate includes an isolating layer, which is arranged on the inner surface of the glass substrate, for isolating the active alkali metal of the glass. Because the present invention uses the ordinary alkali free glass on the liquid crystal panel or the OLED panel as the glass substrate, and arranges an isolating layer on the glass substrate, the isolating layer can prevent the active alkali metal in the alkali free glass like active sodium ion, kalium ion etc.Type: ApplicationFiled: December 3, 2011Publication date: May 30, 2013Inventor: Yewen Wang
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Patent number: 8450765Abstract: An LED chip includes a transparent substrate and a number of lighting structure units each including a p-type semiconductor and an n-type semiconductor and a recess extending from the p-type semiconductor to the n-type semiconductor. The recess is filled with metal material which covers the surface of the lighting structure units. By filling the recess with metal material, the heat generated by the lighting structure units can rapidly transfer to the metal material. A method for manufacturing the light emitting diode chip is also provided.Type: GrantFiled: October 8, 2010Date of Patent: May 28, 2013Assignee: Advanced Optoelectronic Technology, Inc.Inventors: Chia-Hui Shen, Tzu-Chien Hung
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Patent number: 8450760Abstract: One or more circuit elements such as silicon diodes, resistors, capacitors, and inductors are disposed between the semiconductor structure of a semiconductor light emitting device and the connection layers used to connect the device to an external structure. In some embodiments, the n-contacts to the semiconductor structure are distributed across multiple vias, which are isolated from the p-contacts by one or more dielectric layers. The circuit elements are formed in the contacts-dielectric layers-connection layers stack.Type: GrantFiled: April 1, 2011Date of Patent: May 28, 2013Assignees: Koninklijke Philips Electronics N.V., Philips Lumileds Lighting Company, LLCInventors: Jerome C. Bhat, Steven T. Boles
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Patent number: 8426878Abstract: A semiconductor light emitting device includes: a support substrate; a metal layer provided on the support substrate; a semiconductor layer provided on the metal layer and including a light emitting layer; a contact layer containing a semiconductor, selectively provided between the semiconductor layer and the metal layer, and being in contact with the semiconductor layer and the metal layer; and an insulating film provided between the semiconductor layer and the metal layer at a position not overlapping the contact layer.Type: GrantFiled: June 25, 2012Date of Patent: April 23, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Hidefumi Yasuda, Yuko Kato, Yasuharu Sugawara, Toshiyuki Terada, Kazuyoshi Furukawa
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Patent number: 8426872Abstract: Light emitting diode systems are disclosed.Type: GrantFiled: June 8, 2011Date of Patent: April 23, 2013Assignee: Luminus Devices, Inc.Inventors: Alexei A. Erchak, Elefterios Lidorikis
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Patent number: 8421099Abstract: A light emitting device is provided that includes a light emitting structure including a first semiconductor layer, an active layer and a second semiconductor layer, with a roughness formed in a surface of the first semiconductor layer; a phosphor layer arranged on the first semiconductor layer; and an adhesive activation layer arranged between the first semiconductor layer and the phosphor layer. The adhesive activation layer fills a concave part of the roughness and a boundary surface between the adhesive activation layer and the phosphor layer is level.Type: GrantFiled: July 11, 2011Date of Patent: April 16, 2013Assignee: LG Innotek Co., Ltd.Inventor: Hyun Don Song
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Patent number: 8410487Abstract: A manufacturing method and a structure of a light-emitting diode (LED) chip are disclosed. The method includes the steps of: providing a conductive block; providing an epitaxial block; bonding; removing an epitaxial substrate; making independent LEDs; forming a dielectric layer; and making electrical connection. A first LED, a second LED, and a third LED are formed on the conductive block, wherein the first and second LEDs are electrically connected in series, and the second and third LEDs are electrically connected in parallel. Thus, a basic unit with a flexible design of series- and parallel-connected LEDs can be formed to increase the variety and application of LED chip-based designs.Type: GrantFiled: December 15, 2011Date of Patent: April 2, 2013Assignee: Helio Optoelectronics CorporationInventors: Wei-Tai Cheng, Ming-Hung Chen, Ching-Jen Pan
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Patent number: 8410516Abstract: A light emitting diode (LED) package includes a substrate, a first LED chip and a second LED chip. The substrate includes first to fourth electrodes, and an interconnection electrode. A mounting area is defined at center of a top surface of the substrate. The first to fourth electrodes are respectively in four corners of the substrate out of the mounting area. The first interconnection electrode is embedded in the substrate to electrically connect the first and the third electrodes. The first LED chip and the second LED chip are arranged in the mounting area. Each LED chip includes an anode pad and a cathode pad. The first to fourth electrodes are respectively connected to the four pads of the first and the second LED chips via a plurality of metal wires, and no metal wire connection is formed between the first and the second LED chips.Type: GrantFiled: April 8, 2011Date of Patent: April 2, 2013Assignee: Advanced Optoelectronic Technology, Inc.Inventors: Chao-Hsiung Chang, Pi-Chiang Hu
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Patent number: 8405084Abstract: An organic light emitting diode display includes a substrate main body, a polysilicon semiconductor layer on the substrate main body, a gate insulating layer covering the semiconductor layer, and a gate electrode and a pixel electrode on the gate insulating layer, the gate electrode and the pixel electrode each including a transparent conductive layer portion with a gate metal layer portion on the transparent conductive layer portion, and the pixel electrode including a light emitting area having the transparent conductive layer portion and a non-light emitting area having both the transparent conductive layer portion and the gate metal layer portion.Type: GrantFiled: November 15, 2010Date of Patent: March 26, 2013Assignee: Samsung Display Co., Ltd.Inventors: Yul-Kyu Lee, Chun-Gi You, Sun Park, Jong-Hyun Park, Jin-Hee Kang
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Patent number: 8405107Abstract: A light emitting element includes a carrier, a conductive connecting structure disposed on the carrier, an epitaxial stack structure including at least a first lighting stack and a second lighting stack disposed on the conductive connecting structure, an insulation section disposed between the epitaxial stack structure and the conductive connecting structure, and at least a metal line laid on the surface of the light emitting element, wherein the first light emitting stack further includes two electrodes having different polarity formed thereon; the second lighting stack is electrically connected to the conductive connecting structure at the bottom thereof and includes an electrode formed thereon. The insulation section is disposed below the first lighting stack to make the first lighting stack be insulated from the conductive connecting structure. The metal lines and the conductive connecting structure are electrically connected to each of the lighting stacks in parallel connection or series connection.Type: GrantFiled: December 27, 2010Date of Patent: March 26, 2013Assignee: Epistar CorporationInventors: Chiu-Lin Yao, Min-Hsun Hsieh, Wen-Huang Liu
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Patent number: 8399890Abstract: Embodiments relate to a semiconductor light emitting device and a light emitting apparatus comprising the same. The semiconductor light emitting device according to embodiments comprises a plurality of light emitting cells comprising a plurality of compound semiconductor layers; a plurality of ohmic contact layers on the light emitting cells; a first insulating layer on the ohmic contact layer; a second electrode layer electrically connected to a first light emitting cell of the light emitting cells; and a plurality of interconnection layers connecting the light emitting cells in series.Type: GrantFiled: October 16, 2009Date of Patent: March 19, 2013Assignee: LG Innotek Co., Ltd.Inventor: Hwan Hee Jeong
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Patent number: 8399895Abstract: Provided is a semiconductor light emitting device which includes a number of hexagon-shaped semiconductor light emitting elements formed two-dimensionally, and in which the positive electrodes and the negative electrodes are formed on its light outputting surface side lest the light outputting efficiency should decrease. A mask 11 for selective growth is formed on a substrate 1 for growth, and an AlN buffer layer 2 is formed in regions from each of which a part of the mask 11 for selective growth is removed. An undoped GaN layer 3, an n-type GaN layer 4, an active layer 5 and a p-type GaN layer 6 are sequentially stacked on the AlN buffer layer 2. An isolation groove A for isolating the elements from one another is formed.Type: GrantFiled: January 9, 2009Date of Patent: March 19, 2013Assignee: Rohm Co., Ltd.Inventor: Yukio Shakuda
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Patent number: 8384098Abstract: The present invention relates to an AC light emitting diode. An object of the present invention is to provide an AC light emitting diode wherein various designs for enhancement of the intensity of light, prevention of flickering of light or the like become possible, while coming out of a unified method of always using only one metal wire with respect to one electrode when electrodes of adjacent light emitting cells are connected through metal wires. To this end, the present invention provides an AC light emitting diode comprising a substrate; bonding pads positioned on the substrate; a plurality of light emitting cells arranged in a matrix form on the substrate; and a wiring means electrically connecting the bonding pads and the plurality of light emitting cells, wherein the wiring means includes a plurality of metal wires connecting an electrode of one of the light emitting cells with electrodes of other electrodes adjacent to the one of the light emitting cells.Type: GrantFiled: September 20, 2010Date of Patent: February 26, 2013Assignee: Seoul Opto Device Co., Ltd.Inventor: Jae Ho Lee
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Publication number: 20130037836Abstract: A light emitting device that includes a conductive substrate, an insulating layer on the conductive substrate, a plurality of light emitting device cells on the insulating layer, a connection layer electrically interconnecting the light emitting device cells, a first contact section electrically connecting the conductive substrate with at least one light emitting device cell, and a second contact section on the at least one light emitting device cell.Type: ApplicationFiled: October 12, 2012Publication date: February 14, 2013Applicant: LG INNOTEK CO., LTDInventor: LG INNOTEK CO., LTD.
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Patent number: 8373192Abstract: According to one embodiment, a semiconductor light emitting device includes a plurality of semiconductor layers, a first electrode, a second electrode, an insulating layer, a first interconnection layer, a second interconnection layer, a first metal pillar, a second metal pillar and a resin layer, and is mounted in a bent state on a curved surface. The plurality of semiconductor layers includes a first main surface, a second main surface opposite to the first main surface, and a light emitting layer, the plurality of semiconductor layers being separated from one another. A material is provided between the plurality of the semiconductor layers separated from one another. The member has a higher flexibility than the semiconductor layers being.Type: GrantFiled: September 16, 2010Date of Patent: February 12, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiaki Sugizaki, Hideki Shibata, Akihiro Kojima, Masayuki Ishikawa, Hideo Tamura, Tetsuro Komatsu
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Patent number: 8344394Abstract: A circuit includes multiple doped regions in a substrate. A first of the doped regions has a tip proximate to a second of the doped regions and is separated from the second doped region by an intrinsic region to form a P-I-N structure. The circuit also includes first and second electrodes electrically coupled to the first and second doped regions, respectively. The electrodes are configured to supply voltages to the first and second doped regions to reverse bias the P-I-N structure and generate light. The first doped region could include multiple tips, the second doped region could include multiple tips, and each tip of the first doped region could be proximate to one of the tips of the second doped region to form multiple P-I-N structures. The P-I-N structure could also be configured to operate in double avalanche injection conductivity mode with internal positive feedback.Type: GrantFiled: September 15, 2009Date of Patent: January 1, 2013Assignee: National Semiconductor CorporationInventors: Vladislav Vashchenko, Peter J. Hopper, Philipp Lindorfer
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Patent number: 8344411Abstract: A light emitting diode package includes a mount, a plurality of LED chips, and a first and a second sealants made of different materials. The mount has an accommodation space and at least one partition member to divide the accommodation space into a plurality of separate cavities. The LED chips are placed in the cavities, and emitting beams of the LED chips exiting through the cavities include a first emission with a first wavelength band and a second emission with a second wavelength band, and the second wavelength band is different to the first one. The first and the second sealants are respectively used for sealing at least one of the LED chips placed in at least one of the cavities through which the first or the second emission exits. The first and the second sealants are separate from each other by the partition member.Type: GrantFiled: August 19, 2008Date of Patent: January 1, 2013Assignee: Young Lighting Technology Inc.Inventors: Wei-Jen Chou, Sheng-Min Wang, Chiao-Chih Yang
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Patent number: 8338824Abstract: By doping an organic compound functioning as an electron donor (hereinafter referred to as donor molecules) into an organic compound layer contacting a cathode, donor levels can be formed between respective LUMO (lowest unoccupied molecular orbital) levels between the cathode and the organic compound layer, and therefore electrons can be injected from the cathode, and transmission of the injected electrons can be performed with good efficiency. Further, there are no problems such as excessive energy loss, deterioration of the organic compound layer itself, and the like accompanying electron movement, and therefore an increase in the electron injecting characteristics and a decrease in the driver voltage can both be achieved without depending on the work function of the cathode material.Type: GrantFiled: January 6, 2011Date of Patent: December 25, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Nishi, Satoshi Seo
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Patent number: 8338843Abstract: An embodiment of the invention concerns a light-emitting device with an adjustable, time-variable luminance. This is achieved through electrically conductive tracks that are applied to the first electrode area. The conductive tracks are driven in a time-variable manner with different levels of electrical power.Type: GrantFiled: August 28, 2007Date of Patent: December 25, 2012Assignee: OSRAM Opto Semiconductors GmbHInventors: Florian Schindler, Markus Klein, Benjamin Claus Krummacher
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Patent number: 8330173Abstract: Disclosed are a nanostructure with an indium gallium nitride quantum well and a light emitting diode employing the same. The light emitting diode comprises a substrate, a transparent electrode and an array of nanostructures interposed between the substrate and the transparent electrode. Each of the nanostructures comprises a core nanorod, and a nano shell surrounding the core nanorod. The core nanorod is formed substantially perpendicularly to the substrate and includes a first nanorod of a first conductivity type, an (AlxInyGa1-x-y)N (where, 0?x<1, 0?y?1 and 0?x+y?1) quantum well, and a second nanorod of a second conductivity type, which are joined in a longitudinal direction. The nano shell is formed of a material with a bandgap greater than that of the quantum well, and surrounds at least the quantum well of the core nanorod. Meanwhile, the second nanorods are connected in common to the transparent electrode.Type: GrantFiled: June 25, 2005Date of Patent: December 11, 2012Assignee: Seoul Opto Device Co., Ltd.Inventor: Hwa Mok Kim
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Patent number: 8324639Abstract: A nitride semiconductor light emitting device includes a conductive substrate, a first metal layer, a second conductivity-type semiconductor layer, an emission layer, and a first conductivity-type semiconductor layer in this order. The nitride semiconductor light emitting device additionally has an insulating layer covering at least side surfaces of the second conductivity-type semiconductor layer, the emission layer and the first conductivity-type semiconductor layer. A method of manufacturing the same is provided. The nitride semiconductor light emitting device may further include a second metal layer. Thus, a reliable nitride semiconductor light emitting device and a method of manufacturing the same are provided in which short-circuit at the PN junction portion and current leak is reduced as compared with the conventional examples.Type: GrantFiled: August 6, 2007Date of Patent: December 4, 2012Assignee: Sharp Kabushiki KaishaInventors: Mayuko Fudeta, Atsuo Tsunoda
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Patent number: 8324654Abstract: A light emitting device includes a body having a recess; a barrier section protruding upward over a bottom surface of the recess and dividing the bottom surface of the recess into a plurality of regions; a plurality of light emitting diodes including a first diode disposed in a first region of the bottom surface of the recess and a second diode disposed in a second region of the bottom surface of the recess; a plurality of lead electrodes spaced apart from each other in the recess and selectively connected to the light emitting diodes; wires connecting the lead electrodes to the light emitting diodes; a resin layer in the recess; and at least one concave part in the barrier section. The concave part has a height lower than a top surface of the barrier section and higher than the bottom surface of the recess and the wires are provided in the concave part to connect the lead electrodes to the light emitting diodes disposed in opposition to each other.Type: GrantFiled: May 18, 2011Date of Patent: December 4, 2012Assignee: LG Innotek Co., Ltd.Inventors: Joong In An, Sung Min Kong
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Patent number: 8309838Abstract: A semiconductor structure is provided that can be used for cooling, heating, and power generation. A first region of the semiconductor structure has a first length and comprises a first semiconductor material doped at a first concentration with a first dopant. A second region is disposed adjacent to the first region so as to define a first interface, has a second length which is longer than the first length, and comprises a second semiconductor material doped at a second concentration with a second dopant. At least one of the first material, second material, first concentration, second concentration, first length, second length, first dopant, and second dopant is selected to create, at the first interface, a forward electrical potential step having a barrier height dependent at least in part on an average temperature (T) of the semiconductor structure, e.g., a range of approximately 3-10 ?BT, where ?B is the Boltzmann constant.Type: GrantFiled: January 14, 2005Date of Patent: November 13, 2012Assignee: Massachusetts Institute of TechnologyInventor: Gang Chen
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Patent number: 8309975Abstract: In a semiconductor light emitting device, in which a light emitting layer is formed on one surface of a conductive substrate, and an n-type electrode and a p-type electrode are formed on the same side as the light emitting layer, there has been the problem that, if larger electric power is applied, heat is generated near the n-side electrode to reduce luminous efficiency. The n-side electrode has a predetermined length at a corner portion or along an edge of the substrate to disperse a current flowing from the n-side electrode into the substrate, thereby avoiding heat generation near the n-side electrode. In this type of semiconductor light emitting element, the existence of the n-side electrode reduces a light emitting area. Therefore, the length of the n-side electrode preferably ranges from 20% to 50% of the entire peripheral length of the substrate.Type: GrantFiled: October 30, 2008Date of Patent: November 13, 2012Assignee: Panasonic CorporationInventors: Atsuhiro Hori, Hidenori Kamei, Syuusaku Maeda
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Patent number: 8309979Abstract: A light emitting device is provided having high luminous output while maintaining high wall plug efficiency, wherein the high thermal and electrical conductivity paths of the device are separated during the semiconductor wafer and die level manufacturing step. The device includes an electrical conducting mirror layer, which reflects at least 60% of generated light incident on it, and an isolation layer having electrical insulating properties and thermal conducting properties. A first electrode, which is not in contact with the main semiconductor layers of the device, is located on the mirror layer. A light emitting module, system and projection system incorporating the light emitting device are also described, as is a method of manufacture of the device.Type: GrantFiled: September 12, 2008Date of Patent: November 13, 2012Assignee: PhotonStar LED LimitedInventors: James Stuart McKenzie, Majd Zoorob
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Patent number: 8299477Abstract: A light emitting device that includes a conductive substrate, an insulating layer on the conductive substrate, a plurality of light emitting device cells on the insulating layer, a connection layer electrically interconnecting the light emitting device cells, a first contact section electrically connecting the conductive substrate with at least one light emitting device cell, and a second contact section on the at least one light emitting device cell.Type: GrantFiled: October 13, 2008Date of Patent: October 30, 2012Assignee: LG Innotek Co., Ltd.Inventors: Geun Ho Kim, Yong Seon Song, Yu Ho Won
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Publication number: 20120241783Abstract: An LED array having N light-emitting diode units (N?3) comprises a permanent substrate, a bonding layer on the permanent substrate, a second conductive layer on the bonding layer, a second isolation layer on the second conductive layer, a crossover metal layer on the second isolation layer, a first isolation layer on the crossover metal layer, a conductive connecting layer on the first isolation layer, an epitaxial structure on the conductive connecting layer, and a first electrode layer on the epitaxial structure. The light-emitting diode units are electrically connected with each other by the crossover metal layer.Type: ApplicationFiled: March 23, 2012Publication date: September 27, 2012Applicant: Epistar CorporationInventors: Li-Ping Jou, Yu-Chen Yang, Jui-Hung Yeh
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Patent number: 8269225Abstract: 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: GrantFiled: October 12, 2011Date of Patent: September 18, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Yasuyuki Arai
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Publication number: 20120228651Abstract: A light-emitting-diode (LED) array includes a first LED unit having a first electrode and a second LED unit having a second electrode. The first LED unit and the second LED unit are positioned on a common substrate and are separated by a gap. Two or more polymer materials form a multi-layered structure in the gap. A first polymer material substantially fills a lower portion of the gap and at least one additional polymer material substantially fills a remainder of the gap above the first polymer material. A kinematic viscosity of the first polymer material is less than a kinematic viscosity of the at least one additional polymer material. An interconnect, positioned on top of the at least one additional polymer material, electrically connects the first electrode and the second electrode.Type: ApplicationFiled: May 25, 2012Publication date: September 13, 2012Applicants: NCKU RESEARCH AND DEVELOPMENT FOUNDATION, PHOSTEK, INC.Inventors: Ray-Hua Horng, Yi-An Lu, Heng Liu
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Patent number: 8263969Abstract: A laminated structure includes a wettability variable layer formed on a substrate, including a material whose critical surface tension varies by receiving energy so that high and low surface energy regions are formed; a conductive layer formed in one of the high surface energy regions; and an insulating layer formed in such a manner as to cover the conductive layer, wherein another one of the high surface energy regions is formed in such a manner as to surround a periphery of a circuit formation region in which a plurality of the conductive layers are formed; and the insulating layer is formed in such a manner as to also cover the another one of the high surface energy regions so that an adhesive guard ring region is formed between the wettability variable layer and the insulating layer.Type: GrantFiled: April 23, 2009Date of Patent: September 11, 2012Assignee: Ricoh Company, Ltd.Inventors: Koei Suzuki, Takanori Tano, Atsushi Onodera
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Patent number: 8259257Abstract: The liquid crystal display apparatus includes a liquid crystal panel and the back light device for emitting the light from a light source to the liquid crystal panel through a lens. The light source includes a first LED for emitting the light of a first color, a second LED for emitting the light of a second color, a third LED for emitting the light of a third color, a fourth LED for emitting the light of the third color, a fifth LED for emitting the light of the second color, and a sixth LED for emitting the light of the first color. The first, second, third, fourth, fifth and sixth LEDs are arranged on the wiring board in such a manner as to offset the deviation of the light distribution.Type: GrantFiled: August 17, 2009Date of Patent: September 4, 2012Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Yutaka Akiba, Ikuo Hiyama, Kiyomi Nakamura, Yoshinori Aono, Makoto Tsumura, Akitoyo Konno, Norihiro Uemura
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Patent number: 8251518Abstract: A projector includes at least one light source module, an optical system, an imaging unit, and a projection lens. Each light source module includes a lamp unit and a heat-dissipating module in close contacting with the lamp unit. Each of the at least one light source module is positioned at one end of the optical system. The imaging unit is positioned at the other end of the optical system. The projection lens is positioned at the same end of the optical system with the imaging unit. Each lamp unit can be adjusted along a first direction relative to the heat-dissipating module, each light source module can be adjusted along a second direction relative to the optical system, the first direction and the second direction both perpendicular to the light emitting direction of the corresponding lamp unit.Type: GrantFiled: March 24, 2009Date of Patent: August 28, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Yun-Liang Chu, Ming-Chang Lin
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Publication number: 20120211783Abstract: A light-emitting-diode (LED) array includes a first LED device having a first electrode and a second LED device having a second electrode. The first LED device and the second LED device are positioned on a common substrate. At least one polymer material is between the first LED device and the second LED device. A plurality of microsctructures are in the at least one polymer material. An interconnect is formed on top of the at least one polymer material to electrically connect the first electrode and the second electrode.Type: ApplicationFiled: May 2, 2012Publication date: August 23, 2012Applicants: NCKU RESEARCH AND DEVELOPMENT FOUNDATION, PHOSTEK, INC.Inventors: Ray-Hua Horng, Yi-An Lu, Pei-Yun Kuo
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Patent number: 8237183Abstract: A semiconductor light emitting device includes: a support substrate; a metal layer provided on the support substrate; a semiconductor layer provided on the metal layer and including a light emitting layer; a contact layer containing a semiconductor, selectively provided between the semiconductor layer and the metal layer, and being in contact with the semiconductor layer and the metal layer; and an insulating film provided between the semiconductor layer and the metal layer at a position not overlapping the contact layer.Type: GrantFiled: August 14, 2008Date of Patent: August 7, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Hidefumi Yasuda, Yuko Kato, Yasuharu Sugawara, Toshiyuki Terada, Kazuyoshi Furukawa
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Publication number: 20120194103Abstract: Solid state lighting (SSL) devices (e.g., devices with light emitting diodes) with reduced dimensions (e.g., thicknesses) and methods of manufacturing are disclosed herein. In one embodiment, an SSL device includes an SSL structure having a first region and a second region laterally spaced apart from the first region and an insulating material between and electrically isolating the first and second regions. The SSL device also includes a conductive material between the first and second regions and adjacent the insulating material to electrically couple the first and second regions in series.Type: ApplicationFiled: January 28, 2011Publication date: August 2, 2012Applicant: MICRON TECHNOLOGY, INC.Inventor: Vladimir Odnoblyudov
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Publication number: 20120187431Abstract: A light emitting diode chip a support layer having a first face and a second face opposite the first face, a diode region on the first face of the support layer, and a bond pad on the second face of the support layer. The bond pad includes a gold-tin structure having a weight percentage of tin of 50% or more. The light emitting diode chip may include a plurality of active regions that are connected in electrical series on the light emitting diode chip.Type: ApplicationFiled: January 21, 2011Publication date: July 26, 2012Inventors: Michael John Bergmann, Christopher D. Williams, Kevin Shawne Schneider, Kevin Haberern, Matthew Donofrio
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Patent number: 8217416Abstract: Provided are a light emitting device package and a method for fabricating the same. The light emitting device package comprises a substrate; a light emitting device on the substrate; a zener diode comprising a first conductive type impurity region and two second conductive type impurity regions, the first conductive type impurity region being disposed in the substrate, the two second conductive type impurity regions being separately disposed in two areas of the first conductive type impurity region; and a first electrode layer and a second electrode layer, each of them being electrically connected to the second conductive type impurity regions and the light emitting device.Type: GrantFiled: November 3, 2008Date of Patent: July 10, 2012Assignee: LG Innotek Co., Ltd.Inventors: Geun Ho Kim, Yong Seon Song, Yu Ho Won
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Patent number: 8217455Abstract: Semiconductor-on-insulator device structures with enhanced electrostatic discharge protection, and design structures for an integrated circuit with device structures exhibiting enhanced electrostatic discharge protection. A device is formed in a body region of a device layer of a semiconductor-on-insulator substrate, which is bounded by an inner peripheral sidewall of an annular dielectric-filled isolation structure that extends from a top surface of the device layer to the insulating layer of the semiconductor-on-insulator substrate. An annular conductive interconnect extends through the body region and the insulating layer to connect the body region with the bulk wafer of the semiconductor-on-insulator substrate. The annular conductive interconnect is disposed inside the inner peripheral sidewall of the isolation structure, which annularly encircles the body region.Type: GrantFiled: April 14, 2008Date of Patent: July 10, 2012Assignee: International Business Machines CorporationInventors: Michel J. Abou-Khalil, Robert J. Gauthier, Jr., Tom C. Lee, Junjun Li, Christopher S. Putnam, Souvick Mitra
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Publication number: 20120168791Abstract: An embodiment of the disclosed technology provides a method for preventing electrostatic breakdown during the manufacturing process of the array substrate. The method comprises: when forming a conductive pattern of a substrate, connecting conductive lines for forming the conductive pattern with a closed conductive ring on a same layer as the conductive lines in a peripheral region of the substrate, and wherein when electrostatic charges are generated over the metal line, the electrostatic charges are led to the closed conductive ring.Type: ApplicationFiled: December 28, 2011Publication date: July 5, 2012Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Weifeng ZHOU, Jian GUO, Xing MING
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Publication number: 20120161174Abstract: The light-emitting unit includes a first light-emitting element and a second light-emitting element over an insulating surface. The first light-emitting element includes a first electrode, a second electrode, and a layer containing a light-emitting organic compound interposed between the first and second electrodes. An edge portion of the first electrode is covered with a first insulating partition wall. The second light-emitting element includes a third electrode, a fourth electrode, a light-emitting organic compound interposed between the third and fourth electrodes. The first and third electrodes are formed from the same layer having a property of transmitting light emitted from the light-emitting organic compound. The second and fourth electrodes are formed from the same layer. The second electrode intersects with the edge portion of the first electrode with the first partition wall interposed therebetween, whereby the second electrode and the third electrode are electrically connected to each other.Type: ApplicationFiled: December 20, 2011Publication date: June 28, 2012Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei YAMAZAKI
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Patent number: 8207001Abstract: A manufacturing method for an axially symmetric light-emitting diode assembly disclosed herein includes steps of: providing a substrate; and forming a plurality of light-emitting areas on the substrate. The substrate has a central axis. The light-emitting areas are arranged with axial symmetry around the central axis while being insulated from each other. Each of the light-emitting areas has at least one light-emitting diode, and the light-emitting diodes are electrically connected to each other. Since the light-emitting areas are formed on the substrate with the axially symmetric arrangement, the axially symmetric light-emitting diode assembly can present a well symmetric light pattern.Type: GrantFiled: September 23, 2008Date of Patent: June 26, 2012Assignee: Helio OptoElectronic Corp.Inventors: Ming-Hung Chen, Jing-Yi Chen
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Patent number: 8207543Abstract: A light source and method for making the same are disclosed. The light source includes a substrate, and a light emitting structure that is divided into segments. The light emitting structure includes a first layer of semiconductor material of a first conductivity type deposited on the substrate, an active layer overlying the first layer, and a second layer of semiconductor material of an opposite conductivity type from the first conductivity type overlying the active layer. A barrier divides the light emitting structure into first and second segments that are electrically isolated from one another. A serial connection electrode connects the first layer in the first segment to the second layer in the second segment. A power contact is electrically connected to the second layer in the first segment, and a second power contact is electrically connected to the first layer in the second segment.Type: GrantFiled: March 16, 2011Date of Patent: June 26, 2012Assignee: Bridgelux, Inc.Inventor: Ghulam Hasnain
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Patent number: 8207548Abstract: An LED array chip (2), which is one type of a semiconductor light emitting device, includes an array of LEDs (6), a base substrate (4) supporting the array of the LEDs (6), and a phosphor film (48). The array of LEDs (6) is formed by dividing a multilayer epitaxial structure including a light emitting layer into a plurality of portions. The phosphor film (48) covers an upper surface of the array of the LEDs (6) and a part of every side surface of the array of LEDs (6). Here, the part extends from the upper surface to the light emitting layer.Type: GrantFiled: November 10, 2009Date of Patent: June 26, 2012Assignee: Panasonic CorporationInventor: Hideo Nagai
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Patent number: 8193546Abstract: A light-emitting-diode (LED) array includes a first LED device having a first electrode and a second LED device having a second electrode. The first and the second LED device are formed on a common substrate and are separated by a gap. At least one polymer material substantially fills the gap. An interconnect, formed on top of the at least one polymer material, electrically connects the first electrode and the second electrode.Type: GrantFiled: November 17, 2010Date of Patent: June 5, 2012Assignee: Pinecone Energies, Inc.Inventors: Ray-Hua Horng, Yi-An Lu, Heng Liu
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Patent number: 8193547Abstract: A modular package for a light emitting device includes a leadframe having a top surface and including a central region having a bottom surface and having a first thickness between the top surface of the leadframe and the bottom surface of the central region. The leadframe may further include an electrical lead extending away from the central region. The electrical lead has a bottom surface and has a second thickness from the top surface of the leadframe to the bottom surface of the electrical lead. The second thickness may be less than the first thickness. The package further includes a package body on the leadframe surrounding the central region and exposing the bottom surface of the central region. The package body may be at least partially provided beneath the bottom surface of the lead and adjacent the bottom surface of the central region. Methods of forming modular packages and leadframes are also disclosed.Type: GrantFiled: June 6, 2011Date of Patent: June 5, 2012Assignee: Cree, Inc.Inventors: Ban P. Loh, Bernd Keller, Nicholas W. Medendorp, Jr.
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Patent number: 8188507Abstract: Provided are a light emitting device package and a method for fabricating the same. The light emitting device package comprises a substrate; a light emitting device on the substrate; a zener diode comprising a first conductive type impurity region and two second conductive type impurity regions, the first conductive type impurity region being disposed in the substrate, the two second conductive type impurity regions being separately disposed in two areas of the first conductive type impurity region; and a first electrode layer and a second electrode layer, each of them being electrically connected to the second conductive type impurity regions and the light emitting device.Type: GrantFiled: November 3, 2008Date of Patent: May 29, 2012Assignee: LG Innotek Co., Ltd.Inventors: Geun Ho Kim, Yong Seon Song, Yu Ho Won
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Patent number: 8188457Abstract: A light emitting device includes a substrate, a first cladding layer, an active layer, and a second cladding layer formed in that order, and a reflective part formed above the substrate and separated from the active layer. At least a portion of the active layer constitutes a plurality of gain regions, which forms at least one gain region pair, a first gain region of which is provided in one direction and a second gain region is provided in another direction different from the one direction. At least a portion of an end surface of the first gain region and the second gain region overlap with each other. Light emitted from the end surface of the first gain region is reflected by the reflective part, and propagates in the same direction or in the focusing direction with light emitted from the end surface of the second gain region.Type: GrantFiled: January 4, 2010Date of Patent: May 29, 2012Assignee: Seiko Epson CorporationInventor: Masamitsu Mochizuki
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Patent number: RE44163Abstract: A semiconductor light emitting device having a semiconductor stacking structure bonded onto the support member and having excellent characteristics is provided by a preferable electrode structure. The semiconductor light emitting device comprising; a semiconductor stacking structure having a first semiconductor layer and a second semiconductor layer of conductivity types different from each other, a first electrode connected to the first semiconductor layer, and a second electrode connected to the second semiconductor layer, wherein one principal surface of the first electrode has a portion that makes contact with the first semiconductor layer so as to establish electrical continuity and an external connection section.Type: GrantFiled: March 16, 2012Date of Patent: April 23, 2013Assignee: Nichia CorporationInventor: Kazuyuki Akaishi