Light Conversion Patents (Class 313/501)
  • Patent number: 11075327
    Abstract: Light modules and methods of forming light modules are disclosed. A light module includes a first plurality and a second plurality of light emitting elements configured to emit, respectively, a first light and a second light, and both arranged on a substrate. An encapsulation layer is disposed over the first and second plurality of the light emitting elements, and a wavelength converting element is dispersed in the encapsulation layer. A concentration of the wavelength converting element in the encapsulation layer varies, is larger over the first plurality of light emitting elements and is smaller over the second plurality of light emitting elements.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: July 27, 2021
    Assignee: Lumileds LLC
    Inventors: Wouter Anthon Soer, Rene Helbing, Guan Huang
  • Patent number: 11073718
    Abstract: An exemplary embodiment of the present disclosure provides a color conversion display panel including: a light blocking member and a blue light cutting filter disposed on a color conversion substrate; a first color conversion layer and a second color conversion layer disposed on the blue light cutting filter to include nanocrystals; and a transmission layer disposed on the color conversion substrate, wherein the blue light cutting filter overlaps side surfaces of the first color conversion layer, the second color conversion layer, and the transmission layer.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: July 27, 2021
    Inventors: Kyung-Bae Kim, Il Gon Kim, Hyun Joon Kim
  • Patent number: 11056621
    Abstract: An optoelectronic device is disclosed. In an embodiment an optoelectronic device includes a primary radiation source configured to emit an electromagnetic primary radiation during operation of the device and a conversion element arranged in a beam path of the electromagnetic primary radiation, wherein the conversion element includes quantum dots configured to at least partially convert the electromagnetic primary radiation into an electromagnetic secondary radiation during operation of the device, and wherein the quantum dots have a diameter of 50 nm inclusive to 500 nm inclusive.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: July 6, 2021
    Assignee: OSRAM OLED GMBH
    Inventors: Tansen Varghese, David O'Brien, Georg Roßbach
  • Patent number: 11043610
    Abstract: A light-emitting device includes a light-emitting element which emits ultraviolet light, and a fluorescent layer provided on the light-emitting element. The fluorescent layer includes fluorescent particles. The fluorescent particles are excited by the ultraviolet light emitted by the light-emitting element and the excited fluorescent particles emit ultraviolet light of a wavelength longer than the ultraviolet light emitted by the light-emitting element.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: June 22, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Naoki Musashi
  • Patent number: 11042063
    Abstract: A display device includes a backlight unit configured to emit light, a display panel disposed in front of the backlight unit, and an optical sheet disposed between the backlight unit and the display panel. The optical sheet may include a first prism sheet including a plurality of first prisms arranged in a first direction, a second prism sheet including a plurality of second prisms arranged in a second direction intersecting the first direction, and disposed in front of the first prism sheet; and a third prism sheet including a plurality of third prisms arranged in the first direction, and disposed in front of the second prism sheet.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sei Young Kang, Seung Jun Jeong, Min Woo Kang, Nam Seok Roh, Kwan Sik Min, Young Chol Lee, Jae Jeong Lee
  • Patent number: 11031530
    Abstract: Embodiments of the invention include a light emitting device, a first wavelength converting material, and a second wavelength converting material. The first wavelength converting material includes a nanostructured wavelength converting material. The nanostructured wavelength converting material includes particles having at least one dimension that is no more than 100 nm in length. The first wavelength converting material is spaced apart from the light emitting device.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: June 8, 2021
    Assignee: Lumileds LLC
    Inventors: Debasis Bera, Mark Melvin Butterworth, Oleg Borisovich Shchekin
  • Patent number: 11028978
    Abstract: The present disclosure discloses a light source module and an illumination device using the light source module. The light source module includes at least one of a first light emitting body, a second light emitting body, and a third light emitting body, three light emitting bodies have different characteristics of luminescence. The light source module and the illumination device using the light source module, provided by the example of the disclosure, adjust a peak wavelength, a peak intensity and a color coordinate of a light emitting body in the light source module into a preset range.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: June 8, 2021
    Assignee: Opple Lighting Co., Ltd.
    Inventors: Xiaoming Fan, Zhixian Zhou
  • Patent number: 11021368
    Abstract: A carbon nanotube (CNT) sheet containing CNTs having a median length of at least 0.05 mm and an aspect ratio of at least 2,500; L arranged b a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.0. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the •filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electromagnetic wave absorption, lightning strike dissipation. EMI shielding, thermal interface pads, energy storage, and heat dissipation.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: June 1, 2021
    Assignee: General Nano LLC
    Inventors: Chaminda Jayasinghe, Larry Allen Christy, Edward Ming Chan
  • Patent number: 11008511
    Abstract: Disclosed are a method of producing an aluminate fluorescent material, such an aluminate fluorescent material, and a light emitting device.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: May 18, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Kazuya Nishimata, Tomokazu Yoshida, Shoji Hosokawa
  • Patent number: 10982824
    Abstract: The present invention relates to an LED illuminant module and lighting apparatus and, more specifically, to a high color rendering D50/D65 standard LED illuminant module and lighting apparatus, which has both high color rendering properties and excellent metamerism index characteristics by using a high color rendering LED and an ultraviolet LED.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: April 20, 2021
    Assignee: GLBTECH CO., LTD.
    Inventors: Han Do Kim, Byung Soon Kim, Guen Ryeol Park, Eun Mi Park, Yong Sun Choi
  • Patent number: 10978669
    Abstract: A display device is provided. The display device includes: a substrate; a driving thin film transistor disposed over the substrate; a pixel electrode electrically connected to the driving thin film transistor; a pixel-defining layer including an opening overlapping the pixel electrode; an intermediate layer overlapping a portion of the pixel electrode exposed through the opening, the intermediate layer including an emission layer; an opposite electrode disposed on the intermediate layer; an organic control layer disposed on the opposite electrode, the organic control layer having hydrophilicity; an organic encapsulation layer disposed on the organic control layer; and at least one inorganic encapsulation layer overlapping the organic encapsulation layer.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: April 13, 2021
    Inventors: Jihwang Lee, Youngseo Choi, Munhwa Song, Yonghyuck Lee
  • Patent number: 10937770
    Abstract: A light-emitting device having light-emitting elements with high operation stability and light extraction efficiency is provided. The light-emitting device includes: a substrate; light-emitting elements aligned and arranged on the substrate in an arrangement direction; wavelength conversion layers each disposed on each of the light-emitting elements with a light-transmitting adhesive interposed therebetween, each of the wavelength conversion layers having an upper surface smaller than a bottom surface, and a side surface shape in which a length in a lateral direction parallel to the bottom surface and perpendicular to the arrangement direction decreases from the bottom surface toward the upper surface; a light-transmitting plate disposed over the wavelength conversion layers; and a reflective resin covering side surfaces of the light-emitting elements, the wavelength conversion layers, and the light-transmitting plate.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: March 2, 2021
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Mitsunori Harada, Kaori Tachibana, Satoshi Ando
  • Patent number: 10930719
    Abstract: Embodiments of the present disclosure provide an array substrate, a method for manufacturing an array substrate, a display panel, and a display device. The array substrate includes a plurality of pixels, each of the pixels includes a plurality of sub-pixels, wherein each of the plurality of sub-pixels includes a base substrate, an insulating layer, a color filter layer, a planarization layer, and an organic light emitting unit, and wherein the insulating layer covers the base substrate, the insulating layer is provided with a first opening, at least a portion of the color filter layer is filled in the first opening, the planarization layer covers over the insulating layer and a surface of the color filter layer, and the organic light emitting unit is disposed on the planarization layer.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: February 23, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhen Song, Guoying Wang
  • Patent number: 10879483
    Abstract: An organic electroluminescent device wherein, among the distribution characteristics of light emitted inside a substrate: the brightness of white light has a maximum value within an angle range of 20-60° from an axis perpendicular to the planar direction of the substrate; the spectral radiance of red light at the maximum emission wavelength and the spectral radiance of green light at the maximum emission wavelength have maximum values within the angle range of 30-70° from the axis perpendicular to the planar direction of the substrate; and the maximum values are greater than the value for spectral radiance of red light at the maximum emission wavelength and the value for the spectral radiance of green light at the maximum emission wavelength, in the axial direction perpendicular to the planar direction of the substrate.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: December 29, 2020
    Assignee: LUMIOTEC INC.
    Inventor: Junichi Tanaka
  • Patent number: 10876706
    Abstract: A landscape lighting system includes a first LED lamp including a first lamp body and an optic having at least one LED for generating light, and a second LED lamp including a second lamp body and an optic having at least one LED for generating light. The first lamp body has a first color for indicating a first lumen level for the light generated by the first LED lamp, and the second lamp body has a second color that is different than the first color for indicating a second lumen level for the light generated by the second LED lamp. The second lumen level is different than the first lumen level. The optics of the first and second LED lamps have transparent covers with beam angle spread indicators provided on the respective transparent covers. At least one of the optics has a color temperature indicator on a transparent cover.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: December 29, 2020
    Assignee: Mind Head LLC
    Inventor: David M. Beausoleil
  • Patent number: 10852587
    Abstract: A display device includes: a display substrate; a light amount control layer on the display substrate; a first polarizer on the light amount control layer; and a color conversion layer on the first polarizer. The color conversion layer includes a phosphor, the phosphor includes a quantum dot, the quantum dot including: a core; a first shell surrounding the core; and a second shell surrounding the first shell, and the quantum dot has a diameter ranging from about 2 nm to about 32 nm.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: December 1, 2020
    Inventors: Minki Nam, Kyoungwon Park, Baekhee Lee, Youngmin Kim, Haeil Park, Jaikyeong Kim, Heesuk Kim, Wanki Bae, Dohchang Lee, Byeongguk Jeong
  • Patent number: 10802341
    Abstract: A color conversion panel for a display device includes: a substrate including a first region, a second region, and a third region; a light-blocking partition disposed on the substrate and having a plurality of openings via which the first region, the second region and the third region are exposed; color conversion patterns disposed on the substrate in the openings in the first region and in the second region, respectively; and a light-transmitting layer containing scattering particles and including a first portion disposed in the opening in the third region and a second portion disposed to cover the color conversion patterns on the substrate. The scattering particles increase the efficiency of color conversion, such that color gamut may be increased.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Uk Kim, Sang Ji Park, Hae Ju Yun
  • Patent number: 10782611
    Abstract: A photosensitive composition, a quantum dot polymer composite pattern prepared therefrom, and a layered structure and an electronic device including the same. The photosensitive composition includes plurality of quantum dots; a luminescent material other than a quantum dot; a carboxylic acid group containing binder; a photopolymerizable monomer having a carbon-carbon double bond; and a photoinitiator, and the luminescent material comprises a fluorophore, a nanosized inorganic phosphor, or a combination thereof.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 22, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeyeon Yang, Eun Joo Jang, Hyo Sook Jang, Shin Ae Jun
  • Patent number: 10768470
    Abstract: A color conversion panel includes a color base substrate including a first transmissive area, a second transmissive area and a third transmissive area; a light blocking pattern on the color base substrate and defining the first transmissive area, the second transmissive area, and the third transmissive area; a first color filter in the first transmissive area and the second transmissive area; a first color conversion layer on the first color filter at the first transmissive area; a second color conversion layer on the first color filter in the second transmissive area; and a second color filter on the first transmissive area, the second transmissive area, and the third transmissive area. The first color conversion layer and the second color conversion layer are each between the first color filter and the second color filter.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyoungwon Park, Soodong Kim, Minki Nam, Sungwoon Kim
  • Patent number: 10767111
    Abstract: A method is disclosed for forming a blended phosphor composition. The method includes the steps of firing precursor compositions that include europium and nitrides of at least calcium, strontium and aluminum, in a refractory metal crucible and in the presence of a gas that precludes the formation of nitride compositions between the nitride starting materials and the refractory metal that forms the crucible. The resulting compositions can include phosphors that convert frequencies in the blue portion of the visible spectrum into frequencies in the red portion of the visible spectrum.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: September 8, 2020
    Assignee: CREE, INC.
    Inventors: Brian T. Collins, Christopher P. Hussell, David T. Emerson, Ronan P. Le Toquin
  • Patent number: 10756304
    Abstract: An organic light-emitting display panel and a display device are provided. The light-emitting display panel includes a first electrode layer including a reflective electrode, and a second electrode layer arranged opposite to the first electrode layer and including a semi-reflective electrode. The light-emitting display panel also includes a light-emitting material layer between the two electrode layers. The second electrode layer has a first side facing the light-emitting material layer and an opposing second side. Further, the light-emitting display panel includes a light-coupling layer group disposed on the opposing second side of the second electrode layer. The light-coupling layer group includes at least one light-coupling stacked layer including a first light-coupling layer arranged close to the second electrode layer and a second light-coupling layer arranged far away from the second electrode layer.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: August 25, 2020
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Guofeng Zhang, Yingteng Zhai, Haijing Chen
  • Patent number: 10754220
    Abstract: A display device includes: a display panel and a photonic crystal grating disposed on a light-emitting side of the display panel; wherein the photonic crystal grating has a fully light-transmitting state and a grating state used for 3D display.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 25, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Pengming Chen
  • Patent number: 10756303
    Abstract: Disclosed is a light emitting device including a plurality of organic electroluminescent sections each including a first reflective layer, an organic light emitting layer and a second reflective layer in this order, and a light extraction surface from which light emitted from each of the organic electroluminescent sections through the second reflective layer is extracted. The second reflective layer includes a first metal layer, a transparent layer and a second metal layer in this order from the organic light emitting layer side, and in each of the organic electroluminescent sections, a microcavity structure is formed by a structure that includes a first reflective interface on the organic light emitting layer side of the first reflective layer, a second reflective interface on the organic light emitting layer side of the first metal layer, and a third reflective interface on the organic light emitting layer side of the second metal layer.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 25, 2020
    Assignee: JOLED INC.
    Inventor: Toshihiro Fukuda
  • Patent number: 10746377
    Abstract: A short wavelength infrared (SWIR) energy emitting system or material for producing SWIR energy from an emission source emitting electromagnetic energy. The SWIR energy system or material comprises a phosphor material, an electromagnetic energy blocking member, a substrate for delivering the system or material to an electromagnetic energy emission source, and optionally, a securing member. The SWIR energy system or material may be in the form of a tape, sheet, or other laminar material capable of producing short wave infrared emission when excited at wavelengths shorter than that of the emission.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: August 18, 2020
    Assignee: Cyalume Technologies, Inc.
    Inventors: William R. Palmer, Stephen L. Palmer
  • Patent number: 10700303
    Abstract: An organic light-emitting diode including an anode, a cathode, and a luminescent layered structure is provided. The luminescent layered structure is disposed between the anode and the cathode. The luminescent layered structure has a luminescent layer and a sensitizer layer. The luminescent layer has a luminescent-layer ground state, a luminescent-layer singlet state and a luminescent-layer triplet state, in which two times of the luminescent-layer triplet state is higher than the luminescent-layer singlet state. The sensitizer layer has a sensitizer-layer triplet state, which is between the luminescent-layer singlet state and the luminescent-layer triplet state. The molecules of the sensitizer layer at the sensitizer layer triplet layer transfers energy to the molecules of the luminescent layer at the luminescent-layer triplet state and triggers triplet-triplet annihilation upconversion in the luminescent layer such that the luminescent layer emits light of a first color.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: June 30, 2020
    Assignees: YUAN ZE UNIVERSITY, NICHEM FINE TECHNOLOGY CO, LTD., WISECHIP SEMICONDUCTOR INC., TETRAHEDRON TECHNOLOGY CORPORATION, SHINE MATERIALS TECHNOLOGY CO., LTD.
    Inventors: Jiun-Haw Lee, Tien-Lung Chiu, Chia-Hsun Chen, Pei-Hsi Lee
  • Patent number: 10698309
    Abstract: A light source module of a photo printer includes a first micro light source, a second micro light source, a rod lens array and a microlens. The first micro light source emits a first light beam. The second micro light source emits a second light beam. The rod lens array is arranged between the first micro light source, the second micro light source and a film paper. The microlens is arranged between the first micro light source, the second micro light source and the rod lens array. The microlens is used for converging the projection angles of the first light beams and the second light beam. The microlens has an optical axis. The second micro light source is arranged along the optical axis. The first micro light source is arranged beside a first side of the optical axis.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: June 30, 2020
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Yun-Yi Lin, Mu-Jung Wang
  • Patent number: 10687478
    Abstract: A lighting array for providing artificial light include a square or rectangular frame on which a plurality of chip on board (COB) units are mounted. Each COB units includes a light emitting diode (LED) element. The COB units are mounted in an arrangement of columns and rows, where there are an odd number of columns defined, and COB units on odd numbered columns do not share rows with COB units positioned on even numbered columns. The arrangement achieves a greater uniformity of light intensity over a given growing area compared to conventional lighting systems, at similar light output levels.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: June 23, 2020
    Inventors: Austin Rouse, Anne-Marie Rouse
  • Patent number: 10670940
    Abstract: A display panel including a substrate, a display device, a dielectric layer, and an optical resonance structure is provided. The substrate has a layout area and a light transmitting area located outside the layout area. The display device is disposed on the layout area of the substrate. The display device includes a first display electrode, a second display electrode, and a display media layer deposited between the first display electrode and the second display electrode. The dielectric layer is disposed on the substrate and covers the display device. The optical resonance structure is disposed on the dielectric layer and distributed correspondingly to the display device. The optical resonance structure includes a first transflective layer and a second transflective layer stacked on the display device and separated from each other.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: June 2, 2020
    Assignees: Industrial Technology Research Institute, Intellectual Property Innovation Corporation
    Inventors: Chih-Chia Chang, Yi-Hsiang Huang, Kai-Ming Chang, Kuan-Ting Chen
  • Patent number: 10662375
    Abstract: A method for producing a nitride fluorescent material having high emission luminance can be provided. The method includes heat-treating a raw material mixture containing silicon nitride, silicon, an aluminium compound, a calcium compound, and a europium compound.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: May 26, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Kazuya Nishimata, Hiroyuki Watanabe, Shoji Hosokawa
  • Patent number: 10605422
    Abstract: An organic light-emitting diode comprising an organic layer sequence, a radiation exit area and an encapsulation. The organic layer sequence comprises at least one radiation-emitting region which generates electromagnetic radiation in the spectral range from infrared radiation to UV radiation during operation. The radiation exit area is structured, so that the electromagnetic radiation has a directional emission profile. The encapsulation forms a seal of the organic layer sequence against environmental influences.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 31, 2020
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Ulrich Kastner-Jung, Markus Klein, Stan Maes, Romana Sigl, Annette Haid, Stephan Lintner, Julian Herget, Gregor Matjan
  • Patent number: 10586890
    Abstract: An opto-electronic device with two-dimensional injection layers is described. The device can include a semiconductor structure with a semiconductor layer having one of an n-type semiconductor layer or a p-type semiconductor layer, and a light generating structure formed on the semiconductor layer. A set of tilted semiconductor heterostructures is formed over the semiconductor structure. Each tilted semiconductor heterostructure includes a core region, a set of shell regions adjoining a sidewall of the core region, and a pair of two-dimensional carrier accumulation (2DCA) layers. Each 2DCA layer is formed at a heterointerface between one of the sidewalls of the core region and one of the shell regions. The sidewalls of the core region, the shell regions, and the 2DCA layers each having a sloping surface, wherein each 2DCA layer forms an angle with a surface of the semiconductor structure.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 10, 2020
    Assignee: Sensor Electronic Technology, Inc.
    Inventors: Grigory Simin, Michael Shur, Alexander Dobrinsky
  • Patent number: 10584853
    Abstract: A light-emitting device includes a plurality of semiconductor laser elements including a first semiconductor laser element, and a plurality of reflectors including a first reflector for reflecting light emitted from the first semiconductor laser element, each of reflectors reflecting light emitted from corresponding one of the plurality of semiconductor laser elements. Light emitted from the first semiconductor laser element passes through a gap between two of the plurality of reflectors excluding the first reflector and reaches the first reflector. Lights emitted from the plurality of semiconductor laser elements are extracted in a direction different than an incident direction thereof toward the plurality of reflectors.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: March 10, 2020
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Masao Kamiya, Masaaki Osawa, Satoshi Wada, Yuhki Kawamura, Kento Hayashi
  • Patent number: 10582842
    Abstract: A light source apparatus irradiates an observation target with first light in a wavelength region which does not include a wavelength region where an absorption peak of a target substance included in the observation target is present and second light in a wavelength region where the absorption peak is present. An image acquiring circuit includes an emphasized image information generating circuit which generates emphasized image information on the basis of first image information acquired by an imaging apparatus when the observation target is irradiated with the first light and second image information acquired by the imaging apparatus when the observation target is irradiated with the second light.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 10, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuaki Tamura, Takeshi Ito
  • Patent number: 10573790
    Abstract: An optoelectronic arrangement having a radiation conversion element and a method for producing a radiation conversion element are disclosed. In an embodiment, an optoelectronic arrangement includes a semiconductor chip having an active region configured to generate radiation, a radiation conversion element arranged downstream of the semiconductor chip in an emission direction and a reflective polarization element arranged downstream of the radiation conversion element in the emission direction. The radiation conversion element has a plurality of conversion elements, each of which has an axis of symmetry, the spatial orientation of the axes of symmetry has a preferred direction and a radiation emitted by the radiation conversion element has a preferred polarization. The reflective polarization element largely allows radiation with the preferred polarization to pass through and largely reflects radiation polarized perpendicularly to the preferred polarization.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: February 25, 2020
    Assignee: OSRAM OLED GMBH
    Inventors: Wolfgang Mönch, Britta Göötz, Frank Singer, Martin Straßburg, Tilman Schimpke
  • Patent number: 10539297
    Abstract: Light modules for converting the wavelength of light are described herein along with methods for using and making such modules and devices incorporating such modules.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: January 21, 2020
    Assignee: CRYSTALPLEX CORPORATION
    Inventors: Gregory Miller, William R. Freeman
  • Patent number: 10497651
    Abstract: An encapsulated integrated circuit is provided that includes an integrated circuit (IC) die. An encapsulation material encapsulates the IC die. An electromagnetic interference (EMI) shield is provided by a photonic bandgap (PBG) structure that is included within the encapsulation material. The PBG structure is configured to have a photonic bandgap with a frequency range approximately equal to a range of frequencies that may cause EMI.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 3, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Benjamin Stassen Cook, Daniel Lee Revier
  • Patent number: 10488018
    Abstract: An integrated light source includes: an emissive radiation source having a first spectrum; an optical element located to direct emissions from the emissive radiation source; a volumetric spectrum converter located to convert emissions directed from the emissive radiation source to emissions having a second spectrum different from the first spectrum; an optical reflector located about the converter; an output filter, the reflector being located to reflect the converter emissions towards the output filter; and a package body having an internal cavity containing the emissive radiation source, optical element, converter, reflector, and filter, wherein desired light radiates from the cavity through the filter.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: November 26, 2019
    Assignee: INFINITE ARTHROSCOPY, INC. LIMITED
    Inventors: Eugene Malinskiy, Ilya Malinskiy, Daniel Dudley, Howard Fein
  • Patent number: 10451880
    Abstract: A display device includes a frame and an image display device. The image display device includes an image forming device, a light guide device, and a lens system. The image forming device includes light emitting elements 300 arranged in a two-dimensional matrix. Each of the light emitting elements 300 has a laminated structure 301 including at least one layer of light emitting laminates 310, 320, and 330 each including a first electrode, a second electrode, and a light emitting layer provided between the first electrode and the second electrode. The laminated structure 301 has a through hole 360 through which light from the light emitting layer is emitted toward the lens system. An antireflection layer 370 is formed in a portion of the laminated structure facing the lens system.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 22, 2019
    Assignee: SONY CORPORATION
    Inventor: Kazuma Aiki
  • Patent number: 10439109
    Abstract: A method of combining a first phosphor material and a second phosphor material and devices made therefrom. The method includes providing a first phosphor material, combining the first phosphor material with a host matrix to create a first phosphor mixture, curing the first phosphor mixture at one or more predetermined temperatures, and depositing the cured first phosphor mixture onto a substrate having a second phosphor material. The first phosphor material includes red emission phosphor particles and the second phosphor material includes yellow emission phosphor particles and the host matrix includes a silsesquioxane host material, silsesquioxane-silicate host material, a sol gel host material, or an alkali/silicate water glass host material.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: October 8, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Nicholas Francis Borrelli, Nadja Teresia Lonnroth, Wageesha Senaratne
  • Patent number: 10417943
    Abstract: A point-of-sale advertising system for use with a display case having a front glass sheet positioned in front of a cavity for accepting goods, the system containing a transparent LCD positioned behind the front glass sheet, and a plurality of LEDs positioned adjacent to one pair of opposing edges of the LCD and arranged so that light which is emitted from the LEDs is directed backwards towards the cavity. Further embodiments may also contain a door assembly and frame surrounding the front glass sheet and LCD, a switch positioned to determine when the door assembly is open or closed, and electrical circuitry adapted to turn off the LEDs when the door is open and turn on the LEDs when the door is closed.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: September 17, 2019
    Assignee: Manufacturing Resources International, Inc.
    Inventor: William Dunn
  • Patent number: 10353223
    Abstract: A backlight assembly includes a light source portion including a plurality of light sources. The light sources are configured to emit light. A wavelength conversion member is disposed on the light source portion. The wavelength conversion member is configured to convert a wavelength of light emitted from the light source portion. The wavelength conversion member includes a first substrate disposed on the light source portion, a second substrate disposed on the first substrate, and a plurality of wavelength conversion layers interposed between the first substrate and the second substrate. Each of the plurality of wavelength conversion layers correspond to a light source of the plurality of light sources.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: July 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Hoon Kim, Dong Hyeon Lee, Seung Hwan Baek, Ju Young Yoon, Han Moe Cha, Young Jun Choi
  • Patent number: 10355181
    Abstract: A light-emitting device includes: a base member having a conductive pattern; a light-emitting element arranged on the base member so as to be electrically connected to the conductive pattern; and a dielectric multi-layer film located on an upper surface of the light-emitting element. The dielectric multi-layer film has a first spectral reflectivity in an emission peak wavelength region of the light-emitting element and a second spectral reflectivity in a region that is located at a longer wavelength side of the emission peak wavelength region by 50 nm, and the second spectral reflectivity is greater by 10% or more than the first spectral reflectivity.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: July 16, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Motokazu Yamada
  • Patent number: 10330964
    Abstract: The present disclosure provides a color changing device, a display module, a manufacturing method thereof, and a display control method. The color changing device includes a plurality of color changing blocks and a color control circuit connected to the plurality of color changing blocks and configured to control each color changing block to exhibit a corresponding color. Each color changing block includes a transparent electrode, a transparent insulation layer arranged on the transparent electrode and provided with a groove, gold nanoparticles filled in the groove and electrically connected to the transparent electrode, and a plurality of electrode sheets coated with silver ions and covering the groove. The electrode sheets of different color changing blocks are insulated from each other.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 25, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yanqiu Li, Hetao Wang
  • Patent number: 10327293
    Abstract: A display device includes a substrate, a first light emitting element, and a second light emitting element. The substrate includes at least one pixel area. The first light emitting element and the second emitting element are disposed in the pixel area. The first light emitting element emits light of a first color and has a first luminous efficiency-injection current density function. The second light emitting element emits light of a second color and has a second luminous efficiency-injection current density function, intersected with the first luminous efficiency-injection current density function to define a critical transform current density. The light of the first color and the light of the second color have a same color system.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: June 18, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Kuo-Lung Lo, Chin-Yuan Ho, Chen-Chi Lin
  • Patent number: 10312304
    Abstract: An organic light-emitting diode panel and a manufacturing method using the same are provided in the present invention. The OLED panel includes at least a pixel. The pixel includes an anode conducting layer, an insulation layer, an emitting layer (EML), a cathode layer and a reference voltage layer. The anode conducting layer is disposed on a transparent substrate. The insulation layer is disposed on the anode conducting layer and has a first cavity and a second cavity, wherein there is a distance between the first anode layer and the bottom of second cavity. There are a hole injection layer (HIL) and a hole transmission layer (HTL). The HIL is disposed on the first anode conducting layer. The HTL is disposed on the HIL. There are a cathode layer, an electronic injection layer (EIL) and an electronic transmission layer (ETL) in the second cavity. The cathode layer is exposed by the bottom of the second cavity. The EIL is disposed on the cathode layer. The ETL is disposed on the EIL.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: June 4, 2019
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Chun-Fu Wang
  • Patent number: 10288939
    Abstract: The present disclosure discloses a backlight and a manufacturing method thereof, a light guide plate and a manufacturing method thereof and a display device. The backlight is a direct type backlight, and the backlight includes: a light guide plate having a main body of a plate shape, a plurality of light emitting units that are placed toward to a plane side of the light guide plate; where the light guide plate comprises a Quantum Dot (QD) layer on a first surface of the main body wherein the first surface is substantially flat.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: May 14, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Huijuan Wang, Xue Dong, Yonglian Qi, Fei Wang, Zhenhua Lv, Hongshu Zhang
  • Patent number: 10264226
    Abstract: Light is made more expressive by a simple configuration of an illumination device. An illumination device (10) includes: a projection section on which beams of light which beams are emitted from a first LED (1A) and a second LED (1B), respectively, are to be projected; and a light emission control section (3) configured to control the first LED (1A) and the second LED (1B) so as to temporally change intensities of the beams of light. The first LED (1A) and the second LED (1B) are provided so that the beams of light which beams are emitted from the first LED (1A) and the second LED (1B), respectively, overlap in part in the projection section, and assuming that a part of the projection section in which part the beams of light overlap is an overlapping part, the light emission control section (3) changes the intensities of the beams of light so that at least any one of a size, a location, and a shape of the overlapping part is temporally changed.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: April 16, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Takeshi Arai
  • Patent number: 10253950
    Abstract: A method for producing a multifunctional layer, a method for producing an electrophoresis substrate, and a method for producing a converter plate and an optoelectronic component are disclosed. In an embodiment the method includes providing an electrophoresis substrate comprising a carrier having a front side and a back side, wherein a first electrically conductive layer and a second electrically conductive layer are located on the front side, electrophoretically depositing a first material onto the first electrically conductive layer, electrophoretically depositing a second material onto the second electrically conductive layer and arranging a filler material between the first material and the second material, wherein the filler material forms a common boundary surface with the first material and the second material.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 9, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Ion Stoll, Frank Singer, Georg Dirscherl
  • Patent number: 10249152
    Abstract: The described embodiments relate generally to an accessory device for a tablet device. The accessory device takes the form of a flexible screen protector that can be disposed over a display portion of the tablet device. Because the flexible screen protector covers the display of the tablet there is no visual way for the tablet to provide notifications to the user while the screen protector overlays it. By providing a data and power connection between the tablet and the accessory device, the processor of the tablet device can command illumination elements disposed in the accessory device to be illuminated in any of a number of illumination states. Each of the illumination states can be associated with an operating state of the tablet device thereby allowing the tablet device to visually communicate operating state information while the display is covered.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: April 2, 2019
    Assignee: Apple Inc.
    Inventors: Jared A. Sartee, Justin Richard Wodrich
  • Patent number: RE47591
    Abstract: An LED lamp provides a strong red color with a natural appearance. The LED lamp is provided with an LED module and a filter. The LED module includes a blue LED with a main emission peak in the 440 nm to 460 nm wavelength band, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor. The filter reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by the LED module.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: September 3, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoko Matsubayashi, Hiroshi Yagi, Masanori Shimizu, Yoshio Manabe, Atsushi Motoya, Kazuhiro Matsuo, Toshio Mori