Including Semiconductor Component With At Least One Potential Barrier Or Surface Barrier Adapted For Light Emission Structurally Associated With Controlling Devices Having A Variable Impedance And Not Being Light Sensitive (epo) Patents (Class 257/E27.12)
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Publication number: 20140077233Abstract: 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: ApplicationFiled: September 19, 2012Publication date: March 20, 2014Inventor: Khok Hing-Wai
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Patent number: 8674376Abstract: An LED package structure with standby bonding pads for increasing wire-bonding yield includes a substrate unit, a light-emitting unit, a conductive wire unit and a package unit. The substrate unit has a substrate body and a plurality of positive pads and negative pads. The light-emitting unit has a plurality of LED bare chips. The positive electrode of each LED bare chip corresponds to at least two of the positive pads, and the negative electrode of each LED bare chip corresponds to at least two of the negative pads. Each wire is electrically connected between the positive electrode of the LED bare chip and one of the at least two positive pads or between the negative electrode of the LED bare chip and one of the at least two negative pads. The package unit has a light-permitting package resin body on the substrate body to cover the LED bare chips.Type: GrantFiled: April 28, 2011Date of Patent: March 18, 2014Assignee: Paragon Semiconductor Lighting Technology Co., Ltd.Inventors: Chao-Chin Wu, Shen-Ta Yang
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Patent number: 8674391Abstract: An optoelectronic semiconductor component for a lighting device including a carrier, at least one optoelectronic semiconductor chip mounted on the carrier and which includes a radiation passage face remote from the carrier, by which a plane is defined, and a lens comprising 1) a radiation exit face, which, relative to a height above the plane, exhibits a minimum, in particular in a central region, and at least two local maxima, and at least two local maxima, and 2) at least two connecting embankments which each extend from one of the maxima to another of the maxima, and each connecting embankment comprises a saddle point higher than the minimum and lower than the maxima adjoining the connecting embankment.Type: GrantFiled: December 28, 2010Date of Patent: March 18, 2014Assignee: OSRAM Opto Semiconductors GmbHInventor: Peter Brick
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Patent number: 8669567Abstract: A light-emitting device is disclosed. More particularly, the light-emitting device comprises a first substrate; a light-emitting element over the first substrate; a second substrate over the light-emitting element, wherein the second substrate contains a concave portion; a sealant between the first substrate and the second substrate; and a material having a water absorbing property is formed in the concave portion, wherein the material having the water absorbing property is provided so as not to overlap the light-emitting element, and so as to be spaced from the sealant.Type: GrantFiled: June 10, 2011Date of Patent: March 11, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takahiro Kawakami, Kaoru Tsuchiya, Takeshi Nishi, Yoshiharu Hirakata, Keiko Kida, Ayumi Sato, Shunpei Yamazaki
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Publication number: 20140061689Abstract: An LED device comprises an LED chip or LED chip array for emitting light of a color spectrum, the LED chip or array being mounted on a component having a component surface. At least one color is applied to the component surface where the color is selected to reflect light to color tune the light emitted from the LED device to obtain a desired CRI.Type: ApplicationFiled: September 4, 2012Publication date: March 6, 2014Applicant: CREE, INC.Inventor: Harry Seibel
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Patent number: 8637885Abstract: A light emitting device according to the embodiment includes a conductive support member; a light emitting structure on the conductive support member including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer between the first and second semiconductor layers; and a protective device on the light emitting structure.Type: GrantFiled: February 15, 2011Date of Patent: January 28, 2014Assignee: LG Innotek Co., Ltd.Inventors: Kwang Ki Choi, Hwan Hee Jeong, Sang Youl Lee, June O Song
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Patent number: 8624246Abstract: A display device and a method of manufacturing the same. In one embodiment, a display device includes a substrate having a pixel region, a transistor region and a capacitor region, a transistor arranged within the transistor region of the substrate and a capacitor arranged within the capacitor region of the substrate, wherein the capacitor includes a lower electrode arranged on the substrate, a gate insulating layer arranged on the lower electrode and an upper electrode arranged on the gate insulating layer and overlapping the lower electrode, the upper electrode includes a first conductive layer and a second conductive layer arranged on the first conductive layer, wherein the first conductive layer is opaque.Type: GrantFiled: January 31, 2011Date of Patent: January 7, 2014Assignee: Samsung Display Co., Ltd.Inventor: Chun-Gi You
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Patent number: 8604479Abstract: A display substrate includes a substrate, a gate line formed on the substrate, a data line formed on the substrate and crossing the gate line, a first pixel electrode formed on the substrate on which the gate and the data line are formed, an insulation layer formed on the substrate and the first pixel electrode, and a second pixel electrode formed on the insulation layer. The second pixel electrode includes a first sub-electrode that overlaps the first pixel electrode and the data line, and a second sub-electrode that is electrically connected to the data line through a switching element.Type: GrantFiled: September 7, 2011Date of Patent: December 10, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jeong-Hyun Lee, Jeong-Uk Heo, Yeon-Sik Ham, Ock-Soo Son, Yeon-Mun Jeon
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Patent number: 8598598Abstract: Disclosed is a light emitting device having vertically stacked light emitting diodes. It comprises a lower semiconductor layer of a first conductive type positioned on a substrate, a semiconductor layer of a second conductive type on the lower semiconductor layer of a first conductive type, and an upper semiconductor layer of a first conductive type on the semiconductor layer of a second conductive type. Furthermore, a lower active layer is interposed between the lower semiconductor layer of a first conductive type and the semiconductor layer of a second conductive type, and an upper active layer is interposed between the semiconductor layer of a second conductive type and the upper semiconductor layer of a first conductive type. Accordingly, there is provided a light emitting device having a structure in which a lower light emitting diode comprising the lower active layer and an upper light emitting diode comprising the upper active layer are vertically stacked.Type: GrantFiled: May 6, 2010Date of Patent: December 3, 2013Assignee: Seoul Opto Device Co., Ltd.Inventors: Sung Han Kim, Kyoung Hoon Kim
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Publication number: 20130306994Abstract: A display panel includes a fiber reinforced plastic substrate having a first lattice pattern with a first lattice period P, and a pixel layer disposed on the substrate having a second lattice pattern having a second lattice period H, in which if H>P, P and H satisfy P = 2 ? H 2 ? n + 1 , where n is a natural number, and if H>P, P and H satisfy P = ( 2 ? n + 1 ) ? H 2 .Type: ApplicationFiled: September 6, 2012Publication date: November 21, 2013Inventors: SEON UK LEE, Sang Il Kim, Jin Bo Shim, Nak Cho Choi, Jin Woo Choi
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Publication number: 20130292718Abstract: A light-emitting diode (LED) structure and a method for manufacturing the same. The LED structure comprises an insulating substrate, a plurality of LED chips and a plurality of interconnection layers. Each LED chip comprises a first conductivity type semiconductor layer, an active layer and a second conductivity type semiconductor layer stacked in sequence on a surface of the insulating substrate. Each LED chip includes a mesa structure, an exposed portion of the first conductivity type semiconductor layer adjacent to the mesa structure, and a first isolation trench. The first isolation trench is disposed in the mesa structure. The interconnection layers respectively connect neighboring two of the LED chips.Type: ApplicationFiled: August 13, 2012Publication date: November 7, 2013Applicant: CHI MEI LIGHTING TECHNOLOGY CORP.Inventors: Chang Hsin Chu, Hsueh Lin Lee, Chih Kuei Hsu, Yuan Tze Chen
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Publication number: 20130285077Abstract: According to one embodiment, a light emitting module includes a mounting substrate, a plurality of light emitting chips, a transparent layer, and a phosphor layer. The transparent layer is provided between the plurality of light emitting chips on the mounting face and on the light emitting chip. The transparent layer has a first transparent body and a scattering agent dispersed at least in the first transparent body between the plurality of light emitting chips. The scattering agent has a different refraction index from a refraction index of the first transparent body. The phosphor layer is provided on the transparent layer. The light emitting chip includes a semiconductor layer, a p-side electrode, an n-side electrode, a p-side external terminal, and an n-side external terminal.Type: ApplicationFiled: August 28, 2012Publication date: October 31, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Akihiro KOJIMA, Hideto FURUYAMA, Miyoko SHIMADA, Yosuke AKIMOTO, Hideyuki TOMIZAWA
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Publication number: 20130277692Abstract: A semiconductor light emitting device includes a substrate and a first epitaxial structure over the substrate. The first epitaxial structure includes a first doped layer, a first light emitting layer, and a second doped layer. A first electrode is coupled to the first doped layer. A second electrode is coupled to the second doped layer facing the same direction as the first electrode. A second epitaxial structure includes a third doped layer, a second light emitting layer, and a fourth doped layer. A third electrode is coupled to the third doped layer facing the same direction as the first electrode. A fourth electrode is coupled to the fourth doped layer facing the same direction as the first electrode. An adhesive layer is between the first epitaxial structure and the second epitaxial structure.Type: ApplicationFiled: April 19, 2012Publication date: October 24, 2013Applicant: PHOSTEK, INC.Inventors: Yuan-Hsiao Chang, Yi-An Lu
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Patent number: 8546823Abstract: A light emitting device includes a plurality of solid-state light emitting elements mounted on a substrate; and a wavelength converting unit covering the solid-state light emitting elements, the wavelength converting unit containing fluorescent materials. The solid-state light emitting elements include inner solid-state light emitting elements arranged in a central position of the substrate and outer solid-state light emitting elements arranged outwardly of the inner solid-state light emitting elements, and the wavelength converting unit is configured such that a probability that light propagating through the wavelength converting unit is brought into contact with the fluorescent materials in a portion of the wavelength converting unit covering the outer solid-state light emitting elements is lower than a probability that light propagating through the wavelength converting unit is brought into contact with the fluorescent materials in other portions.Type: GrantFiled: June 15, 2012Date of Patent: October 1, 2013Assignee: Panasonic CorporationInventors: Naoko Takei, Kouji Nishioka
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Patent number: 8546825Abstract: A light emitting device is provided which can prevent a change in gate voltage due to leakage or other causes and at the same time can prevent the aperture ratio from lowering. A capacitor storage is formed from a connection wiring line, an insulating film, and a capacitance wiring line. The connection wiring line is formed over a gate electrode and an active layer of a TFT of a pixel, and is connected to the active layer. The insulating film is formed on the connection wiring line. The capacitance wiring line is formed on the insulating film. This structure enables the capacitor storage to overlap the TFT, thereby increasing the capacity of the capacitor storage while keeping the aperture ratio from lowering. Accordingly, a change in gate voltage due to leakage or other causes can be avoided to prevent a change in luminance of an OLED and flickering of screen in analog driving.Type: GrantFiled: July 23, 2012Date of Patent: October 1, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Jun Koyama, Tatsuya Arao, Munehiro Azami
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Publication number: 20130248850Abstract: A thin film transistor includes a source electrode, a drain electrode, a channel portion disposed between the source electrode and the drain electrode, and a gate electrode disposed on the channel portion and insulated from the channel portion. The source electrode, the drain electrode, and the channel portion are disposed on a same layer. A display apparatus includes a display device and the thin film transistor that applies a driving signal to the display device.Type: ApplicationFiled: August 10, 2012Publication date: September 26, 2013Inventors: Tae-Young CHOI, Bo Sung Kim, Byungju Lee, Kangmoon Jo
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Publication number: 20130240888Abstract: A method of fabricating a thin film transistor substrate includes: forming a polymer layer on a glass substrate; forming a passivation layer on the polymer layer; forming a thin film transistor array on the passivation layer; and separating the glass substrate from the polymer layer by irradiating a laser from a rear surface of the glass substrate.Type: ApplicationFiled: June 27, 2012Publication date: September 19, 2013Inventors: Yoon-Dong CHO, Jong-Hyun Park, Soo-Young Yoon, Mi-Jung Lee, Jae-kyung Choi
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Publication number: 20130240920Abstract: A multi-directional bulb-type lamp is disclosed. The multi-directional bulb-type lamp includes a carrying body, a flexible substrate, and a plurality of LED dies. The flexible substrate is a substrate extending toward multi-directions and attached to the carrying body along a surface thereof. The LED dies are directly disposed on the flexible substrate and electrically connected thereto. Whereby, structures of the bulb-type lamp will be simplified for easy assembly, and multi-directional lighting will be reached.Type: ApplicationFiled: August 1, 2012Publication date: September 19, 2013Applicant: DELTA ELECTRONICS, INC.Inventors: Li-Fan LIN, Wen-Chia LIAO, Ching-Chuan SHIUE, Shih-Peng CHEN
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Publication number: 20130234168Abstract: Provided is a light-emitting element including a semiconductor substrate, an island structure formed on the semiconductor substrate and including at least a current confining layer and p-type and n-type semiconductor layers, a light-emitting thyristor formed in the island structure and having a pnpn structure, and a shift thyristor formed in the island structure and having a pnpn structure, wherein the island structure includes a first side surface having a first depth such that the first side surface does not reach the current confining layer in a formation region of the shift thyristor and a second side surface having a second depth such that the second side surface reaches at least the current confining layer in a formation region of the light-emitting thyristor, and an oxidized region selectively oxidized from the second side surface is formed in the current confining layer in the formation region of the light-emitting thyristor.Type: ApplicationFiled: August 1, 2012Publication date: September 12, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Taku KINOSHITA, Michiaki MURATA, Takashi KONDO, Kazutaka TAKEDA, Hideo NAKAYAMA
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Patent number: 8525221Abstract: A light emitting device and method for making the same is disclosed. The light-emitting device includes an active layer sandwiched between a p-type semiconductor layer and an n-type semiconductor layer. The active layer emits lights when holes from the p-type semiconductor layer combine with electrons from the n-type semiconductor layer therein. The active layer includes a number of sub-layers and has a plurality of pits in which the side surfaces of a plurality of the sub-layers are in contact with the p-type semiconductor material such that holes from the p-type semiconductor material are injected into those sub-layers through the exposed side surfaces without passing through another sub-layer. The pits can be formed by utilizing dislocations in the n-type semiconductor layer and etching the active layer using an etching atmosphere in the same chamber used to deposit the semiconductor layers without removing the partially fabricated device.Type: GrantFiled: November 25, 2009Date of Patent: September 3, 2013Assignee: Toshiba Techno Center, Inc.Inventors: Steven Lester, Jeff Ramer, Jun Wu, Ling Zhang
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Patent number: 8507360Abstract: A method includes arranging a bonding layer of a predetermined thickness on at least one of a first functional region bonded on a release layer, which is capable of falling into a releasable condition when subjected to a process, on a first substrate, and a region, to which the first functional region is to be transferred, on a second substrate; bonding the first functional region to the second substrate through the bonding layer; and separating the first substrate from the first functional region at the release layer.Type: GrantFiled: November 3, 2009Date of Patent: August 13, 2013Assignee: Canon Kabushiki KaishaInventors: Takao Yonehara, Yasuyoshi Takai
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Publication number: 20130200399Abstract: A display device includes a first insulation layer on a substrate, gate wires on the first insulation layer, the gate wires extending in a first direction, a second insulation layer on the gate wires, data wires on the second insulation layer, the data wires extending in a second direction crossing the first direction, pixels at intersection regions of gate wires and data wires, respectively, the pixels being connected to respective gate wires and data wires, and data leading diodes having an island form and connected to the data wires, the data leading diodes being configured to induce breakage of the first insulation layer when external static electricity passes through the data wires.Type: ApplicationFiled: July 20, 2012Publication date: August 8, 2013Inventors: Guang hai JIN, Jae-Beom Choi, Kwan-Wook Jung, Moo-Jin Kim, Jae-Hwan Oh, June-Woo Lee
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Patent number: 8502241Abstract: The present invention is characterized in that a transistor with its L/W set to 10 or larger is employed, and that |VDS| of the transistor is set equal to or larger than 1 V and equal to or less than |VGS?Vth|. The transistor is used as a resistor so that the resistance of a light emitting element can be held by the transistor. This slows down an increase in internal resistance of the light emitting element and the resultant current value reduction. Accordingly, a change with time in light emission luminance is reduced and the reliability is improved.Type: GrantFiled: January 11, 2012Date of Patent: August 6, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Mitsuaki Osame, Jun Koyama
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Publication number: 20130193452Abstract: A light emitting diode system is disclosed having a bent layered structure conformed to a least a portion of a self-supporting three dimensional heat sink and maintains a breakdown voltage from 150 to 350 V/micron. The bent layered structure has an electrical circuit, a dielectric layer and at least one LED package, LED chip on board or mixtures thereof attached to the electrical circuit. The dielectric layer is a polyimide derived from at least 70 mole percent aromatic dianhydride based upon total dianhydride content of the polyimide and at least 70 mole percent aromatic diamine based upon total diamine content of the polyimide.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Deborah R. Gravely, Michael J. Green, Kurt Douglas Roberts, Richard A. Wessel
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Patent number: 8486730Abstract: A method of forming a light-emitting diode (LED) device and separating the LED device from a growth substrate is provided. The LED device is formed by forming an LED structure over a growth substrate. The method includes forming and patterning a mask layer on the growth substrate. A first contact layer is formed over the patterned mask layer with an air bridge between the first contact layer and the patterned mask layer. The first contact layer may be a contact layer of the LED structure. After the formation of the LED structure, the growth substrate is detached from the LED structure along the air bridge.Type: GrantFiled: August 6, 2012Date of Patent: July 16, 2013Assignee: TSMC Solid State Lighting Ltd.Inventors: Ding-Yuan Chen, Hung-Ta Lin, Chen-Hua Yu, Wen-Chih Chiou
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Publication number: 20130176195Abstract: An organic light emitting diode display device is provided. The organic light emitting display device includes at least one capacitor, at least one transistor, and an organic light emitting element connected to the capacitor and the transistor. The transistor includes a first structure and a second structure disposed on the first structure with a first insulating layer therebetween. The capacitor includes a first electrode and a second electrode disposed on the first electrode with the insulating layer therebetween. A distance between the first electrode and the second electrode in at least a region, is less than a distance between the first structure and the second structure.Type: ApplicationFiled: June 29, 2012Publication date: July 11, 2013Inventor: Jungbae Kim
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Publication number: 20130175551Abstract: A slim LED package configured to handle large current, having a narrow width, an LED chip mounting area positioned centro-symmetrically within the package, mounting holes positioned equidistantly from the mounting area, wherein multiple packages may be arranged with alternating anode and cathode ends in such a manner that a high-power density radiometric flux line may be created. Some embodiments include current density management areas positioned on one more sides of the LED chip mounting area.Type: ApplicationFiled: May 10, 2012Publication date: July 11, 2013Applicant: LUMINUS DEVICES, INC.Inventors: Michael Lim, Paul Panaccione, Aaron Breen, Michael Hadley
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Patent number: 8481352Abstract: The present invention provides a method of fabricating a light emitting diode chip having an active layer between an N type semiconductor layer and a P type semiconductor layer. The method comprises the steps of preparing a substrate; laminating the semiconductor layers on the substrate, the semiconductor layers having the active layer between the N type semiconductor layer and the P type semiconductor layer; and forming grooves on the semiconductor layers laminated on the substrate until the substrate is exposed, whereby inclined sidewalls are formed by the grooves in the semiconductor layers divided into a plurality of chips. According to embodiments of the present invention, a sidewall of a semiconductor layer formed on a substrate of a light emitting diode chip is inclined with respect to the substrate, whereby its directional angle is widened as compared with a light emitting diode chip without such inclination.Type: GrantFiled: April 19, 2011Date of Patent: July 9, 2013Assignee: Seoul Opto Device Co., Ltd.Inventors: Jun Hee Lee, Jong Kyu Kim, Yeo Jin Yoon
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Publication number: 20130161655Abstract: A white LED assembly includes a string of series-connected blue LED dice mounted on a substrate. The substrate has a plurality of substrate terminals. A first of the substrate terminals is coupled to be a part of first end node of the string. A second of the substrate terminals is coupled to be a part of an intermediate node of the string. A third of the substrate terminals is coupled to be a part of a second end node of the string. Other substrate terminals may be provided and coupled to be parts of corresponding other intermediate nodes of the string. A single contiguous amount of phosphor covers all the LED dice, but does not cover any of the substrate terminals. In one example, the amount of phosphor contacts the substrate and has a circular periphery. All the LEDs are mounted to the substrate within the circular periphery.Type: ApplicationFiled: December 22, 2011Publication date: June 27, 2013Applicant: Bridgelux, Inc.Inventors: Tao Xu, Michael Solomensky
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Publication number: 20130153938Abstract: A light emitting assembly including a substrate having electrically conductive pathways that electrically connect a plurality of electrical component dies. The said electrical components include at least one light emitting diode engaged along the substrate to form an interface surface between the light emitting diode and the substrate. Therefore the combined and unified vector of thermal conduction from the light emitting diode dies are perpendicular to the interface surface when the combined and unified vector of thermal conduction crosses the interface surface from the light emitting diode die to the substrate.Type: ApplicationFiled: August 14, 2012Publication date: June 20, 2013Inventor: Zdenko Grajcar
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Patent number: 8455890Abstract: A method of coating a light emitting device is provided. The method includes preparing a plurality of light emitting devices. The plurality of light emitting devices are coated with a first photocurable liquid. First light is selectively exposed to the first photocurable liquid to form a first coating layer on at least a partial region of a surface of each of the plurality of light emitting devices. The plurality of light emitting devices on which the first coating layer is formed are coated with a second photocurable liquid. Second light is selectively exposed to the second photocurable liquid to form a second coating layer on at least a partial region of the surface of each of the plurality of light emitting devices or a surface of the first coating layer. The first coating layer corresponds to the cured first photocurable liquid, while the second coating layer corresponds to the cured second photocurable liquid.Type: GrantFiled: March 29, 2010Date of Patent: June 4, 2013Assignee: SNU R&DB FoundationInventors: Sung Hoon Kwon, Su Eun Chung
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Publication number: 20130134445Abstract: A light emitter package with primary optic and method of fabricating the same is disclosed that comprises a light emitter disposed on a surface. The package further comprises at least one intermediate element on the surface and at least partially surrounding the light emitter. Furthermore, an encapsulant is over the light emitter forming a primary optic. The intermediate element at least partially defines the shape of the primary optic.Type: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Inventors: Eric Tarsa, Bernd Keller, Peter Guschl, Gerald Negley
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Publication number: 20130134448Abstract: A light component includes a printed circuit board and a plurality of lighting emitting diodes (LEDs). The printed circuit board has a metal substrate. The LEDs are disposed on the printed circuit board, wherein two opposite edges of the metal substrate protrude out and are bent towards the LEDs to form two metal clamps.Type: ApplicationFiled: March 5, 2012Publication date: May 30, 2013Applicant: LEXTAR ELECTRONICS CORPORATIONInventors: Xin-Lin ZHOU, Chen-Yi SU
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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: 8450748Abstract: A light emitting device comprises: an LED chip array comprising a plurality of LEDs formed on a single die (monolithic chip array) and at least one discrete LED that is separate from the LED chip array connected in series with the LED chip array. In an AC-drivable device the LED chip array is AC-drivable and two or more discrete LEDs are configured to be AC-drivable. The device can further comprise a package in which the LED chip array and discrete LED(s) are mounted. The discrete LEDs are configured such that positive and negative half wave periods of an AC drive voltage are mapped onto oppositely connected LED such that oppositely connected LED chips are alternately operable on a respective half wave period.Type: GrantFiled: July 8, 2010Date of Patent: May 28, 2013Assignee: InterLight Optotech CorporationInventors: Hwa Su, Hsi-Yan Chou, Yu-Min Li, Yu-Chou Hu, Chih Wei Huang, Tzu-Chi Cheng
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Publication number: 20130119415Abstract: An LED package structure for enhancing mixed light effect comprises: at least one first light emitting chip; at least one second light emitting chip, a frame structure having a first containing portion, a second containing portion, a spacing portion and a light mixing area; a first colloid, doped with a green-light phosphor and filled into the first containing portion; a second colloid, filled into the second containing portion; and an encapsulating colloid, packaged and filled into the light mixing area. This design can enhance the light emission efficiency and achieve a uniform light-mixing dot light source.Type: ApplicationFiled: May 4, 2012Publication date: May 16, 2013Applicant: UNITY OPTO TECHNOLOGY CO., LTD.Inventors: PING-CHEN WU, HUAN-YING LU, SHIH-CHAO SHEN
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Publication number: 20130113003Abstract: A luminescent light source including a blue light emitting diode (LED) chip, a red LED chip, and a wavelength converting material is provided. The blue LED chip and the red LED chip respectively emit a first light and a second light. A ratio of peak intensity of the second light to peak intensity of the first light ranges from 0.36 to 0.56. The wavelength converting material is disposed around the blue LED chip or the red LED chip and emits a third light. A wavelength of the third light ranges from a wavelength of the first light to a wavelength of the second light.Type: ApplicationFiled: February 21, 2012Publication date: May 9, 2013Applicant: Au Optronics CorporationInventors: Wei-Chih Ke, Ruei-Teng Lin
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Patent number: 8436376Abstract: An organic light emitting diode (OLED) display is disclosed. The organic light emitting diode (OLED) display includes an organic light emitter that has a first electrode, an organic emission layer, and a second electrode. The OLED also has an encapsulation substrate covering the organic light emitter and an assistance electrode disposed between the encapsulation substrate and the second electrode. The assistance electrode can be disposed in a non-light-emitting region between the organic light emitter and the second electrode, and can have a lower resistance than a resistance of the second electrode.Type: GrantFiled: April 29, 2011Date of Patent: May 7, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hyun-Chol Bang, Won-Kyu Kwak, Se-Ho Kim
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Publication number: 20130105834Abstract: A white light emitting diode device includes a substrate, a plurality of blue LED chips arranged on the substrate, an encapsulation covering the blue LED chips and a yellow phosphor absorbing part of blue light from the blue LED chips and emitting a yellow light. The blue light from the blue LED chips without being absorbed by the yellow phosphor is combined with the yellow light to form a white light. The blue LED chips have different peak wavelengths from each other. Differences between peak wavelengths of any two blue LED chips are no larger than a full width at half maximum of any one of the blue LED chips.Type: ApplicationFiled: March 28, 2012Publication date: May 2, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: JIAN-SHIHN TSANG
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Patent number: 8431954Abstract: Disclosed is a light emitting device employing non-stoichiometric tetragonal Alkaline Earth Silicate phosphors. The light emitting device comprises a light emitting diode emitting light of ultraviolet or visible light, and non-stoichiometric luminescent material disposed around the light emitting diode. The luminescent material adsorbs at least a portion of the light emitted from the light emitting diode and emits light having a different wavelength from the absorbed light. The non-stoichiometric luminescent material has tetragonal crystal structure, and contains more silicon in the crystal lattice than that in the crystal lattice of silicate phosphors having stoichiometric crystal structure. The luminescent material is represented as the formula (BauSrvCawCux)3-y(Zn,Mg,Mn)zSi1+bO5+2b:Eua. Light emitting devices having improved temperature and humidity stability can be provided by employing the non-stoichiometric tetragonal Alkaline Earth Silicate phosphors.Type: GrantFiled: January 31, 2012Date of Patent: April 30, 2013Assignee: Seoul Semiconductor Co., Ltd.Inventors: Chung Hoon Lee, Walter Tews, Gundula Roth, Stefan Tews
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Patent number: 8426226Abstract: A method for fabricating an integrated AC LED module comprises steps: forming a junction layer on a substrate, and defining a first growth area and a second growth area on the junction layer; respectively growing a Schottky diode and a LED on the first growth area and the second growth area; forming a passivation layer and a metallic layer on the Schottky diode, the LED and the substrate. Thereby, the Schottky diode is electrically connected with the LED via the metallic layer. Thus is promoted the reliability of electric connection of diodes, reduced the layout area of the module, and decreased the fabrication cost.Type: GrantFiled: January 3, 2012Date of Patent: April 23, 2013Assignee: National Central UniversityInventors: Jen-Inn Chyi, Geng-Yen Lee, Wei-Sheng Lin
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Publication number: 20130092961Abstract: According to example embodiments, a light emitting device (LED) module includes a substrate, a LED on the substrate, a first reflector on the substrate, and a phosphor structure contacting the first reflector. The first reflector may surround the LED from a plan view. The first reflector may have a width at a middle portion of the reflector that is smaller than a width at a bottom portion of the reflector. The LED module may obtain a desired view angle depending on various applications by adjusting a height of the first reflector and/or a difference between the height of first reflector and a height of a phosphor structure.Type: ApplicationFiled: October 15, 2012Publication date: April 18, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: SAMSUNG ELECTRONICS CO., LTD.
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Publication number: 20130092930Abstract: A semiconductor device that is less influenced by variations in characteristics between transistors or variations in a load, and is efficient even for normally-on transistors is provided. The semiconductor device includes at least a transistor, two wirings, three switches, and two capacitors. A first switch controls conduction between a first wiring and each of a first electrode of a first capacitor and a first electrode of a second capacitor. A second electrode of the first capacitor is connected to a gate of the transistor. A second switch controls conduction between the gate and a second wiring. A second electrode of the second capacitor is connected to one of a source and a drain of the transistor. A third switch controls conduction between the one of the source and the drain and each of the first electrode of the first capacitor and the first electrode of the second capacitor.Type: ApplicationFiled: October 12, 2012Publication date: April 18, 2013Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventor: Semiconductor Energy Laboratory Co., Ltd.
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Publication number: 20130087800Abstract: The present invention relates to a thin film transistor array panel and a manufacturing method thereof that prevent disconnection of wiring due to misalignment of a mask, and simplify a process and reduce cost by reducing the number of masks. The thin film transistor array panel according to the disclosure includes a source electrode enclosing an outer part of the first contact hole and formed on the second insulating layer; a drain electrode enclosing an outer part of the second contact hole and formed on the second insulating layer; a first connection electrode connecting the source region of the semiconductor layer and the source electrode through the first contact hole; and a second connection electrode connecting the drain region of the semiconductor layer and the drain electrode through the second contact hole.Type: ApplicationFiled: March 19, 2012Publication date: April 11, 2013Inventors: Pil Soon HONG, Gwui-Hyun Park, Jin-Su Byun, Sang Gab Kim
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Patent number: 8415230Abstract: Provided is a method for transferring, onto a second substrate, at least one of functional regions arranged and joined to a first separation layer that is disposed on a first substrate and that becomes separable by a treatment, in which regions on the second substrate where the functional regions are to be transferred have a second separation layer that becomes separable by a treatment. The method includes a step of joining the first substrate to the second substrate by bonding such that the functional regions contact the second separation layer; a step of separating the functional regions from the first substrate at the first separation layer; and a step of, before or after the step of separation, forming separation grooves penetrating through the second substrate and the second separation layer from a surface of the second substrate, the surface being opposite to a surface having the second separation layer thereon.Type: GrantFiled: March 1, 2010Date of Patent: April 9, 2013Assignee: Canon Kabushiki KaishaInventors: Takao Yonehara, Yasuyoshi Takai
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Publication number: 20130075737Abstract: An organic light-emitting display apparatus having improved durability and image quality may include a substrate; a first electrode formed on the substrate; a first pixel definition layer formed to cover at least one lateral surface of the first electrode; a second pixel definition layer formed so as to be spaced apart from at least an upper surface of the first pixel definition layer; an intermediate layer formed on the first electrode and including an organic light-emitting layer; and a second electrode formed on the intermediate layer.Type: ApplicationFiled: June 6, 2012Publication date: March 28, 2013Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventor: Sang-Min Hong
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Publication number: 20130075766Abstract: A thin film transistor device, disposed on a substrate, includes a gate electrode, a semiconductor channel layer, a gate insulating layer disposed between the gate electrode and the semiconductor channel layer, a source electrode and a drain electrode disposed at two opposite sides of the semiconductor channel layer and partially overlapping the semiconductor channel layer, respectively, a capacitor electrode at least partially overlapping the gate electrode, and a capacitor dielectric layer disposed between the capacitor electrode and the gate electrode. The capacitor electrode, the gate electrode and the capacitor dielectric layer form a capacitor device.Type: ApplicationFiled: April 16, 2012Publication date: March 28, 2013Inventors: Che-Chia Chang, Sheng-Chao Liu, Wu-Liu Tsai, Chuan-Sheng Wei, Chih-Hung Lin
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Publication number: 20130069068Abstract: An object is to prevent an operation defect and to reduce an influence of fluctuation in threshold voltage of a field-effect transistor. A field-effect transistor, a switch, and a capacitor are provided. The field-effect transistor includes a first gate and a second gate which overlap with each other with a channel formation region therebetween, and the threshold voltage of the field-effect transistor varies depending on the potential of the second gate. The switch has a function of determining whether electrical connection between one of a source and a drain of the field-effect transistor and the second gate of the field-effect transistor is established. The capacitor has a function of holding a voltage between the second gate of the field-effect transistor and the other of the source and the drain of the field-effect transistor.Type: ApplicationFiled: September 12, 2012Publication date: March 21, 2013Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Hiroyuki Miyake
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Publication number: 20130069084Abstract: A light emitting device includes a number of light emitting diode dies (LEDs) mounted on a shared submount and covered with a single lens element that includes a corresponding number of lens elements. The LEDs are separated from each other by a distance that is sufficient for lens element to include separate lens elements for each LED. The separation of the LEDs and lens elements may be configured to produce a desired amount of light on a target at a predefined distance. In one embodiment, the lens elements are approximately flat type lens elements, such as Fresnel, TIR, diffractive lens, photonic crystal type lenses, prism, or reflective lens.Type: ApplicationFiled: March 21, 2012Publication date: March 21, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: WALTER DASCHNER, XINA QUAN, NANZE P. WANG
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Patent number: 8399891Abstract: An active device array substrate and a fabricating method thereof are provided. A first patterned conductive layer including separated scan line patterns is formed on a substrate. Each scan line pattern includes a first and second scan lines adjacent to each other. Both the first and the second scan lines have first and second contacts. An open inspection on the scan line patterns is performed. Channel layers are formed on the substrate. A second patterned conductive layer including data lines interlaced with the first and second scan lines, sources and drains located above the channel layers, and connectors is formed on the substrate. The sources electrically connect the data lines correspondingly. At least one of the connectors electrically connects the first and second scan lines, so as to form a loop in each scan line pattern. Pixel electrodes electrically connected to the drains are formed.Type: GrantFiled: November 11, 2010Date of Patent: March 19, 2013Assignee: Au Optronics CorporationInventors: Po-Lin Lai, Ying-Fa Huang, Chun-Ming Yang, Wen-Bin Wu, Wen-Yi Lin