Light Source Or Light Source Support And Luminescent Material Patents (Class 362/84)
  • Patent number: 11187845
    Abstract: A backlight module includes a light guide plate, a light source, a prism sheet, and a reflective film. The light source is disposed on a light-incident surface of the light guide plate. The prism sheet is disposed on a light exit surface of the light guide plate, and includes a plurality of first prism structures that protrude toward the light exit surface of the light guide plate. The reflective film is disposed on a reflection surface of the light guide plate, and includes a film body, a plurality of second prism structures that are disposed on the film body and that protrude from the film body toward the reflection surface, and a light absorbing layer that is disposed on the film body opposite to the second prism structures.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: November 30, 2021
    Assignee: OPTIVISION TECHNOLOGY INC.
    Inventors: Chung-Wei Wang, Li-Jen Hsu
  • Patent number: 11181778
    Abstract: The present invention provides a display device, including: a first chromatic light source configured to generate first chromatic light, a dichroic reflection layer disposed on a light emergent side of the first chromatic light source and allowing the first chromatic light to pass through, and a quantum dot layer. The dichroic reflection layer has a first surface facing away from the first chromatic light source, and the first surface has a plurality of recessed portions. The quantum dot layer includes a plurality of quantum dot blocks, and the quantum dot blocks are disposed corresponding to the recessed portions.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: November 23, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Ting-Yi Kuo, Han-Min Tsai, Pi-Fei Tsai, Hung-Chih Luan, Sheng-Hung Wang, He-Yuan Yang
  • Patent number: 11174428
    Abstract: Disclosed herein are composite materials that comprise one or more nanophosphors capable of converting higher frequency, lower wavelength radiation into visible light. As used, the produced visible light enhances the amount of visible light already present from natural or artificial sources.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: November 16, 2021
    Assignee: THE BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Wei Chen, Lun Ma
  • Patent number: 11168867
    Abstract: A lighting apparatus includes: a light source generating a first color component light; a separation element partially transmitting the first color component light, partially reflecting the first color component light, and transmitting a second color component light different from the first color component light at a certain moment; an illuminant excited by the first color component light transmitted through the separation element to generate the second color component light; and an optical system combining the first color component light made incident on the separation element from the light source and reflected by the separation element with the second color component light made incident on the separation element from the illuminant and transmitted through the separation element. The separation element is configured to have variable transmittance and reflectance with respect to the first color component light.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: November 9, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Norikazu Yamamoto
  • Patent number: 11162645
    Abstract: A light emitting device includes: a light transmissive member having an upper face, a lower face, and at least one lateral face; a light reflecting member that surrounds the at least one lateral face of the light transmissive member, the light reflecting member being made of a ceramic that contains a plurality of pores; a heat dissipation member disposed under the light reflecting member and the light transmissive member, the heat dissipation member having light transmissivity; and a light emitting element disposed apart from the heat dissipation member in such a manner as to transmit light from the light emitting element through the heat dissipation member and the light transmissive member.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: November 2, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Teruhiko Noguchi, Toshio Akita, Yasuhisa Kotani
  • Patent number: 11156871
    Abstract: A backlight module for an LCD display includes backlight units. Each backlight unit includes a backplane unit, a first reflecting unit on the backplane unit, an LED on the backplane unit extending through the first reflecting unit, and a light guiding unit on a side of the LED and the first reflecting unit away from the backplane unit. The light guiding unit is transparent. Each backlight unit further includes a second reflecting unit on a side of the light guiding unit away from the backplane unit. The second reflecting unit includes at least one reflecting region and at least one transmitting region. The reflecting region reflects light; the transmitting region allows light to pass through. At least one backlight unit comprises a quantum dot layer.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 26, 2021
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wei-Chih Chang, I-Min Lu, Kuan-Hsien Jiang
  • Patent number: 11150508
    Abstract: A light emitting device includes: a lightguide plate including a first surface on which a plurality of first recesses are provided; a light-reflective resin layer located on a bottom portion of each first recess; a plurality of light emitting elements each having an upper surface and a lateral surface, wherein each one of the plurality of light emitting elements is arranged in a corresponding one of the plurality of first recesses; and a plurality of wavelength conversion members, wherein: the upper surface of each light emitting element is attached to the light-reflective resin layer; and each of the plurality of wavelength conversion members covers the lateral surface of the light emitting element in the first recess.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: October 19, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Mamoru Imada
  • Patent number: 11145694
    Abstract: The present invention relates to an electroluminescent device and a method of fabricating the same. The electroluminescent device includes a substrate, an organic photovoltaic cell unit (OPV) and a translucent organic light-emitting diode unit (OLED), wherein the organic photovoltaic cell unit is disposed on the substrate, the translucent organic light-emitting diode unit is disposed on the organic photovoltaic cell and connected in series with the organic photovoltaic cell.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: October 12, 2021
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Na Ai
  • Patent number: 11143366
    Abstract: Provided is an LED ring lamp structure, including: an annular base provided with a plurality of bumps and a plurality of grooves radially and alternately arranged on the annular base; and an LED strip light shaped in a long strip, bendable and deformable, and capable of emitting light after being supplied with power. A plurality of LED light emitting portions are evenly disposed on the LED strip light. The plurality of LED light emitting portions are correspondingly arranged on respective bumps, remaining portions of the LED strip light are evenly disposed in respective grooves, and an arrangement of the LED light emitting portions is changed from a linear arrangement to an annular arrangement. The LED light emitting portions are arranged toward a same predetermined direction.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: October 12, 2021
    Inventor: Chien-Ting Lin
  • Patent number: 11145793
    Abstract: This specification discloses lighting device the includes a combination of a royal-blue and blue pump LEDs with a mixture of phosphors to provide light with a high melanopic content and maximize an m/p ratio while maintaining high color fidelity, and a tunable lighting system including the lighting device.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: October 12, 2021
    Assignee: LUMILEDS LLC
    Inventors: Wouter Soer, Gregory Tashjian
  • Patent number: 11131433
    Abstract: A fluorescent module includes a fluorescent member, a heat dissipation member, and an optical relaxation member. The fluorescent member includes a phosphor-containing layer, and a light reflecting layer. The fluorescent member is secured to the heat dissipation member so that the light reflecting layer is arranged between the phosphor-contacting layer and the heat dissipation member. The optical relaxation member is configured to absorb and/or diffuse light. The optical relaxation member is arranged with respect to the fluorescent member so that the light reflecting layer is arranged between the phosphor-containing layer and the optical relaxation member.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 28, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takafumi Sugiyama, Toshiyuki Hirai, Masahiko Sano, Toru Takasone
  • Patent number: 11129261
    Abstract: The lighting device includes a luminaire, duplex circuitry, a lighting control device to control a light output and operation of a light source in a vicinity of the luminaire, and a sound transducer integrated on a surface of an element of the luminaire. The sound transducer responds to vibrations of the luminaire element to detect incoming audio waves and generates outgoing audio waves in the vicinity of the luminaire. The duplex circuitry is coupled to electrical terminals of the sound transducer and configured to generate a first electrical signal of the incoming audio waves, and supply a second electrical signal to cause the sound transducer to generate the outgoing audio waves in the vicinity of the luminaire that are directly proportional to the second electrical signal.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: September 21, 2021
    Assignee: ABL IP HOLDING LLC
    Inventors: Jeffrey M. Scott, Min-Hao Michael Lu, David P. Ramer, Yan Rodriguez
  • Patent number: 11121284
    Abstract: Disclosed in an embodiment is a semiconductor device comprising: a light-emitting structure including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer disposed between the first conductive semiconductor layer and the second conductive semiconductor layer; a first electrode electrically connected to the first conductive semiconductor layer; a second electrode electrically connected to the second conductive semiconductor layer; a reflective layer disposed on the second electrode and including a first metal; and a nitride of the first metal between the second electrode and the reflective layer.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: September 14, 2021
    Assignee: SUZHOU LEKIN SEMICONDUCTOR CO., LTD.
    Inventors: Ki Man Kang, Eun Dk Lee, Hyun Soo Lim, Youn Joon Sung
  • Patent number: 11117510
    Abstract: A vehicle light assembly includes a fixed structure, at least one light and an image projector. The fixed structure is configured to be assembled to a vehicle body component of a vehicle. The at least one light is fixed to the fixed structure and is configured to illuminate a first external area that is in the vicinity of the vehicle. The image projector is fixed to the fixed structure and is configured to project an image onto a second external area that is in the vicinity of the first external area.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: September 14, 2021
    Assignee: NISSAN NORTH AMERICA, INC.
    Inventors: William Weber, Dale Butterworth
  • Patent number: 11112064
    Abstract: A light apparatus with an enlightened pattern includes a driver circuit, a LED plate, an optical light guide, a connector and a bulb shell. The LED plate connected to the driver circuit has a LED module for emitting a light. The optical light guide has a bottom end facing to the LED module for receiving the light and has a top end forming an enlightened pattern where the light escaped from the top end of the optical light guide. The connector is used for fixing the LED plate to the optical light guide for aligning the LED module to emit the light into the bottom end and for transmitting heat of the LED plate to the optical light guide.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: September 7, 2021
    Assignee: XIAMEN ECO LIGHTING CO. LTD.
    Inventors: Yanzeng Gao, Juncheng Che, Hongkui Jiang
  • Patent number: 11105480
    Abstract: An electronic lighting device and a method for manufacturing the same are disclosed. The electronic lighting device includes an outer shell with a first opening at a top surface and a core contained within the outer shell. The core includes a left semicircular structure and a right semicircular structure arranged to form a circular shape that is aligned with the first opening at the top surface of the outer shell. The device includes a flame component positioned partially in the internal cavity. The device also includes a light emitting element disposed at least partially in a lighting element installation cradle on a sidewall of the core to hold the light emitting element at a non-zero angle with respect to a longitudinal axis of the electronic lighting device to allow illumination of the flame component. The device further includes a control circuit to control an operation of the lighting emitting element.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: August 31, 2021
    Assignee: L&L Candle Company, LLC
    Inventor: Xiaofeng Li
  • Patent number: 11106059
    Abstract: A system and method providing correlated color temperature-tunable (CCT-tunable) white light using a laser diode(s) in conjunction with a III-Nitride nanowires-based LED element grown on a semi-transparent substrate. The tunability spans across yellow, amber, and red wavelengths and can be implemented by current injection. The current-dependent broad wavelength tunability enables control of wide range of CCT values (intensity, peak wavelength, and spectral coverage). The broad coverage in the yellow-amber-red color regime mimics that of a passive yellow phosphor, while the injection of current into the LED element defines an active phosphor element. The semi-transparent active phosphor element allows direct transmission of light from a laser diode(s) for achieving extreme wide tunability of CCT.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: August 31, 2021
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Boon S. Ooi, Aditya Prabaswara, Bilal Janjua, Tien Khee Ng
  • Patent number: 11099430
    Abstract: A backlight module includes a light guide panel and a backlight source, which emits light entering the light guide panel via a light receiving surface on a side of the light guide panel. The backlight source includes a base plate and a plurality of light source holders disposed on the base plate. The light source holder includes a circuit substrate having an opening and a base surface. The base surface and the opening are transitionally connected by a curved surface.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: August 24, 2021
    Assignee: Wistron Corporation
    Inventors: Bin Luo, Chih-Chou Chou, Wei-Chia Huang, Zhi-Yi Liang
  • Patent number: 11088298
    Abstract: The present disclosure provides a light-emitting device comprising a substrate with a topmost surface; a first semiconductor stack arranged on the substrate, and comprising a first top surface separated from the topmost surface by a first distance; a first bonding layer arranged between the substrate and the first semiconductor stack; a second semiconductor stack arranged on the substrate, and comprising a second top surface separated from the topmost surface by a second distance which is different form the first distance; a second bonding layer arranged between the substrate and the second semiconductor stack; a third semiconductor stack arranged on the substrate, and comprising third top surface separated from the topmost surface by a third distance; and a third bonding layer arranged between the substrate and the third semiconductor stack; wherein the first semiconductor stack, the second semiconductor stack, and the third semiconductor stack are configured to emit different color lights.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: August 10, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Chien-Fu Huang, Chih-Chiang Lu, Chun-Yu Lin, Hsin-Chih Chiu
  • Patent number: 11079078
    Abstract: Provided is a kit for assembling a luminaire comprising a bendable reflective canopy and a plurality of frame sections which define a frame and a light exit window of the luminaire. The frame sections include a pair of opposing side sections with an engagement member and side sections. The reflective canopy comprises a pair of opposing edge portions, each edge portion engaging with one of the engagement members when assembling the luminaire. The opposing side sections are spaced by the further side sections such that the reflective canopy is bent when the edge portions are engaged with the engagement members so as to cause the reflective canopy to arch over the light exit window. Solid state lighting elements are mounted on one of the side sections such that at least a part of the light emitted is redirected by the arched reflective canopy towards the light exit window.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: August 3, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventor: Lee LJ Wang
  • Patent number: 11073723
    Abstract: A backlight unit, and a display device including the backlight unit are provided. The backlight unit includes a light source member including a first substrate; and a plurality of light sources disposed on a surface of the first substrate, and a wavelength conversion member disposed on over of the light source member to overlap the light source member, the wavelength conversion member including a second substrate and a plurality of wavelength conversion patterns disposed on a surface of the second substrate, wherein the plurality of wavelength conversion patterns are disposed to be spaced apart from one another, and each of the plurality of wavelength conversion patterns covers at least one of the plurality of light sources.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: July 27, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Gyun Kim, Yong Doo Park, Bum Lee
  • Patent number: 11073249
    Abstract: A bulb-type light source includes a globe transmitting a light and at least one light emitting device filament disposed in the globe. The light emitting device filament includes a substrate including n (n is a natural number equal to or greater than 2) flat portions and n?1 bendable portions disposed between the flat portions, a plurality of light emitting device chips disposed on the flat portions, a fluorescent substance layer covering each light emitting device chip and converting a wavelength of a light from each light emitting device chip, and a connection line disposed on the flat portions and electrically connecting the light emitting device chips adjacent to each other between the adjacent light emitting device chips.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: July 27, 2021
    Assignee: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Jae Hyun Park, Seong Jin Lee, Jong Kook Lee
  • Patent number: 11067230
    Abstract: A lighting device 1 includes a circuit board that is long and flexible, light emitters mounted in a row on the circuit board, and an elongated cover. The cover includes (i) a translucent member that is made of translucent soft material and that covers the circuit board and the light emitters, and (ii) a phosphorescent member containing a phosphorescent material that is to be excited by light emitted by the light emitters. The phosphorescent member is arranged on a second area portion of the cover other than a first area portion of the cover that is located in an emission direction of light from each of the light emitters and a luminous intensity is equal to or greater than a standard luminous intensity in the emission direction.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: July 20, 2021
    Assignees: SHENZHEN XLX LIGHT SOURCES CO. LTD., FKK CORPORATION
    Inventors: Kazuo Kawata, Kazuki Yoshida
  • Patent number: 11060699
    Abstract: An illumination device includes a light source configured to generate primary light having a Gaussian intensity distribution, an intensity-distribution converting member configured to convert the primary light to generate secondary light having a top-hat type intensity distribution, a wavelength converter configured to receive the secondary light from a light-receiving surface, generate tertiary light including the secondary light and wavelength-converted light in which a wavelength of the secondary light has been converted, and emit the tertiary light from an emission surface, and an antenna array having a plurality of optical antennas formed on the emission surface of the wavelength converter and arranged at a period larger than an optical wavelength of the secondary light in the wavelength converter.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: July 13, 2021
    Assignees: KYOTO UNIVERSITY, STANLEY ELECTRIC CO., LTD.
    Inventors: Shunsuke Murai, Yusuke Yokobayashi, Masaru Kuramoto, Keijiro Takashima, Syousaku Kubo
  • Patent number: 11060693
    Abstract: An optical system has a set of inner portions, each for mounting over an LED or LED arrangement, and an outer portion, for mounting over the inner portion. The outer portion is adapted to be mountable over each one of the set of inner portions, thereby to form an output lens when the outer portion is mounted over a selected one of the set of inner portions. The output lens has an overall optical function which depends on the selected inner portion. In this way, an optical lens function may be selected simply by choosing an appropriate one from a set of inner portions (or by not using an inner portion at all). The inner portions are low cost components, and they avoid the need for any tooling changes to the larger outer portions.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: July 13, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventor: Remi Noirot
  • Patent number: 11054090
    Abstract: A white light emitting device includes a solid-state excitation source operable to generate excitation light having a dominant wavelength ranging from 440 nm to 455 nm; a first photoluminescence material which generates light having a peak emission wavelength ranging from 500 nm to 530 nm; and a second photoluminescence material which generates light having a peak emission wavelength ranging from 640 nm to 690 nm, where the device is operable to generate white light with an IEC TM-30 Gamut Index Rg ranging from 105 to 115. The device can be operable to generate white light having an IEC TM-30 Fidelity Index Rf which ranges from 85 to 95 and a sum of Gamut Index Rg and fidelity index Rf is greater than or equal to 195 and less than or equal to 200.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: July 6, 2021
    Assignee: Intematix Corporation
    Inventors: Xianglong Yuan, Yi-Qun Li
  • Patent number: 11053438
    Abstract: The invention relates to a red phosphor with a narrow full width at half maximum, having improved decay time and resolving afterglow phenomenon. The fluoride-based phosphor according to the invention is characterized in including a host having a composition of the following [Formula 1] including rubidium (Rb), cesium (Cs), silicon (Si) and fluorine (F) as constituent elements, and manganese (Mn) which is solid solution treated in the host as an activator: Rb3-xCsxSiF7??[Formula 1] (where, 0<x<3).
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: July 6, 2021
    Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
    Inventors: Kee-sun Sohn, Min-seuk Kim
  • Patent number: 11047750
    Abstract: Disclosed herein is a composition and a method for energy harvesting and the autonomous detection of structural failure. This method can be used to monitor, for example, the structural integrity of unmanned aircraft systems.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: June 29, 2021
    Assignee: New Mexico Tech University Research Park Corporation
    Inventor: Donghyeon Ryu
  • Patent number: 11047551
    Abstract: A light emitting device includes a plurality of light sources, a substrate, a partitioning member, a diffuser sheet, a plurality of first reflectors, and a second reflector. Each of the light sources includes a light emitting element and an encapsulant covering the light emitting element. The light sources are disposed on the substrate. The partitioning member surrounds the light sources and has a plurality of areas formed by walls having top parts. The walls include surfaces inclined with respect to an upper surface of the substrate to spread out from bottom parts toward the top parts. The diffuser sheet is provided over the partitioning member. The first reflectors are provided directly over the light sources, on an upper surface or a lower surface of the diffuser sheet. The second reflector is provided directly over the top parts, on the upper surface or the lower surface of the diffuser sheet.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: June 29, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takeshi Tamura, Hiroshi Fujimori, Motokazu Yamada
  • Patent number: 11043611
    Abstract: Organically capped quantum dots are made by functionalizing the surfaces of QDs of various architectures with a combination of 6-mercaptohexanol (MCH) and 2-[2-(2-methoxyethoxy)-ethoxy]-acetic acid (MEEAA). Such MCH/MEEAA-capped QDs exhibit improved compatibility with solvents used in the fabrication of QD-containing films of light emitting devices, such as liquid crystal displays.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: June 22, 2021
    Assignee: Nanoco Technologies Ltd.
    Inventors: Nigel L. Pickett, James Harris, Margaret Hines, Joseph Taylor
  • Patent number: 11041614
    Abstract: A lighting device includes a wavelength conversion unit, a driving unit, and a light source. The wavelength conversion unit includes a main body and a fluorescent powder layer. The main body has a cylindrical outer surface. The fluorescent powder layer is disposed on the cylindrical outer surface. The driving unit is configured to drive the wavelength conversion unit to rotate around an axis. The cylindrical outer surface surrounds the axis. The light source is configured to emit light toward the fluorescent powder layer.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: June 22, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Jih-Chi Li, Wen-Cheng Huang
  • Patent number: 11035537
    Abstract: The invention relates to a luminous lighting and/or signaling module for an automotive vehicle, said module comprising first means arranged to produce a first cut-off beam and second means arranged to produce at least two selectively activatable luminous segments, the luminous segments forming a second beam that is complementary to the cut-off beam, when they are activated simultaneously.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: June 15, 2021
    Assignee: Valeo Vision
    Inventors: Delphine Puech, Kostadin Beev, Antoine de Lamberterie, Eric Stefura, Marine Courcier, Paul Jacquemin
  • Patent number: 11031532
    Abstract: A light emitting device includes at least one LED package, and at least one light transmissive sealing member. Each of the at least one LED package includes a light emitting element, a wavelength converter, and a reflection member. The light emitting element is mounted on a mounting surface of a base and electrically connected to a conductor wiring. The wavelength converter is provided on an upper surface of the light emitting element. The reflection member covers a side surface and a lower surface of the light emitting element. Each of the at least one light transmissive sealing member includes a light diffusion material and covers each of the at least one LED package. Each of the at least one light transmissive sealing member has a projection shape with a substantially circular bottom surface facing the base and with a height in the light axis direction of the light emitting element.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: June 8, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Motokazu Yamada, Yuichi Yamada
  • Patent number: 11022870
    Abstract: The fluorescent light source device according to this invention includes: a light-emitting device emitting blue excitation light; a wavelength conversion device excited by the excitation light and producing yellow fluorescence; and a first dichroic mirror including a region that reflects or transmits the excitation light and a region that transmits or reflects the fluorescence and partial excitation light that was not converted by the wavelength conversion device. The fluorescent light source device mixes fluorescence and partial excitation light from the wavelength conversion device together and emits white light, and further includes an auxiliary light source emitting light in a blue region identical to that of the excitation light. Radiation light from the auxiliary light source is mixed with white light that is a mixture of the fluorescence and the partial excitation light from the first dichroic mirror.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: June 1, 2021
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Kenji Hayashi, Kiyoyuki Kabuki
  • Patent number: 11018197
    Abstract: A display panel and a fabrication method of the display panel are provided. The display panel includes a plurality of pixel rows, which includes first pixel rows and second pixel rows that are alternately arranged and is extended along a first direction. A first pixel row includes a plurality of first units, and a first unit includes two first sub-pixels arranged along a second direction with a same color. First sub-pixels in adjacent first units have different colors. The second direction intersects with and is non-perpendicular to the first direction. A second pixel row includes a plurality of second units, and a second unit includes two second sub-pixels arranged along the second direction with a same color. The first pixel rows and the second pixel rows are alternately arranged in a third direction perpendicular to the first direction. The first sub-pixels have a color different from the second sub-pixels.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: May 25, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yu Xin, Lijing Han, Xian Chen
  • Patent number: 11009208
    Abstract: A light source, specifically an LED or laser diode with a light-emitting surface from which light can be emitted during operation of the light source. An optical element made of transparent material is provided, into which the light emitted by the surface can be beamed. The optical element is molded onto at least one surface formed on the light source using a molding method. A gap is formed between the light-emitting surface and optical element.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: May 18, 2021
    Assignee: Hella GmbH & Co. KGaA
    Inventors: Bernd Fischer, Marc Kaup, Tilman Maucher, Ingo Möllers
  • Patent number: 10996451
    Abstract: A system, method and device for collimating the output of a light emitting diode (LED) are disclosed. The system, method and device include an LED substrate including a top surface from which the light is emitted, and an array of subwavelength scattering antennas positioned within the emitted light path, the array of subwavelength scattering antennas configured to select directions of scatter of the LED emitted light to provide collimated light output from the device. The array may be aligned perpendicular to the plane of propagation of the light emitted from the LED and may be positioned adjacent to the top surface. The array may be at least partially, or completely, positioned within the LED substrate. The array may be spaced a distance from the top surface and the spacing may be achieved using a dielectric spacer adjacent to the top surface. The array may be positioned within the dielectric spacer.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 4, 2021
    Assignee: Lumileds LLC
    Inventor: Venkata Ananth Tamma
  • Patent number: 10989363
    Abstract: The present disclosure relates to a LED filament and a LED bulb with the LED filament. The LED filament includes a carrier, LED chips disposed on the carrier, the carrier includes a first lateral section and a second lateral section opposite to the first lateral section, the LED chips are formed on the first lateral section, hardness of the first lateral section is less than that of the second lateral section. The disclosure further provides a LED bulb with the LED filament above. The LED filament above has benefits of improving structural strength and decreasing costs.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: April 27, 2021
    Assignees: KAISTAR LIGHTING (XIAMEN) CO., LTD., EPISTAR CORPORATION
    Inventors: Chien-Li Yang, Yu-Chun Chung, Yu Min Li
  • Patent number: 10989861
    Abstract: A lighting fixture that includes a frame, a heat sink assembly, an LED assembly, and a reflector. The frame includes a first end plate and a second end plate, each end plate including a slot formed therein. The slot extends from a top edge of the end plates towards a bottom edge of the end plates. The heat sink assembly includes one or more LEDs and a lightguide having a first longitudinal edge that receives light emitted from the LEDs. A first edge and a second edge of the lightguide are slidably inserted into respective slots. The heat sink assembly includes a heat sink base and a heat sink cap coupled thereto which forms a first cavity for housing the LEDs and a second cavity adjacent the first cavity for housing a portion of the lightguide. The reflector is coupled to the end plates.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: April 27, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: James H. Blessitt, Paul W. Lewis, Jr.
  • Patent number: 10982140
    Abstract: A nitride phosphor particle dispersion-type sialon ceramic of the present invention includes a matrix formed of a sialon-based compound; and at least one nitride phosphor which is dispersed in the matrix and contains a luminescence center element.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: April 20, 2021
    Assignees: KANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Takuma Takahashi, Junichi Tatami, Ippei Kokubun, Masahiro Yokouchi
  • Patent number: 10978622
    Abstract: A nitride phosphor, and a light emitting device and a backlight module employing the nitride phosphor. The nitride phosphor has the formula (Sr1-x, Bax)LiAl3N4-nOn:Eu3+y, Eu2+z with 0<x<1 and y/z>0.1. The light emitting device includes a light emitting diode configured to emit a first light and the nitride phosphor configured to convert a portion of the first light to a second light. A backlight module includes a printed circuit board and a plurality of the light emitting devices.
    Type: Grant
    Filed: August 11, 2019
    Date of Patent: April 13, 2021
    Assignee: Lextar Electronics Corporation
    Inventors: Yi-Ting Tsai, Yu-Chun Lee, Tzong-Liang Tsai
  • Patent number: 10976651
    Abstract: An image display apparatus according to an embodiment of the present technology includes a base, a light emission body, a dichroic film, and a heat conduction member. The light emission body is provided on the base, and emits visible light by being excited by excitation light. The dichroic film reflects at least a part of the visible light emitted from the light emission body. The heat conduction member is provided on the base, and diffuses heat transmitted from the light emission body to the base.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: April 13, 2021
    Assignee: SONY CORPORATION
    Inventor: Yoshiki Kashihara
  • Patent number: 10978525
    Abstract: An organic light emitting device having an overlapped area located at an edge of a non-display area. The organic light emitting device includes: a first electrode, a pixel definition layer, an isolation layer and a second electrode. The first electrode is arranged on a planarization layer of the overlapped area. The pixel definition layer is arranged on the first electrode, and further includes a number of pixel definition blocks. The isolation layer is arranged on the pixel definition layer, and further includes a number of supporting blocks arranged in a manner same to that of the number of pixel definition blocks of the pixel definition layer. The second electrode covers the first electrode, the pixel definition blocks, and the supporting blocks in the overlapped area. the second electrode overlaps the first electrode.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: April 13, 2021
    Assignee: KunShan Go-Visionox Opto-Electronics Co., Ltd.
    Inventors: Quan Liu, Lu Zhang, Siming Hu, Zhenzhen Han
  • Patent number: 10969671
    Abstract: A lighting device of the present disclosure includes an excitation light source, a phosphor, a spreader, a reflective layer, and a reflective region. The excitation light source emits a polarized light. The phosphor receives the light as an excitation light from the excitation light source, and emits a fluorescent light, the phosphor including a plurality of phosphor pieces adjacently disposed on the reflective layer, the plurality of phosphor pieces having a same characteristic. The spreader supports the phosphor. The reflective layer is disposed between the phosphor and the spreader, and reflects the fluorescent light. The reflective region is disposed between the plurality of phosphor pieces, the reflective region reflecting the received excitation light while keeping a polarization characteristic of the received excitation light.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: April 6, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shigekazu Yamagishi, Yusaku Nishikawa
  • Patent number: 10969064
    Abstract: A LED bulb apparatus includes a main body, a light source, two end covers, and two connectors. The main body is a hollow structure. The light source module is disposed inside the main body. The light source module has a base plate, a driver and a light source. The driver and the light source being are mounted on the base plate. The two end covers are fixed on two ends of the main body for closing the hollow structure for forming a closed container for storing the light source module and a heat dissipation gas.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 6, 2021
    Assignee: XIAMEN ECO LIGHTING CO. LTD.
    Inventors: Qiyuan Wang, Liangliang Cao, Hongkui Jiang, Wei Liu, Huiwu Chen, Feihua He
  • Patent number: 10961451
    Abstract: A fluorescent material is provided that has improved luminance and can generate fluorescence by excitation light in wider wavelength range. A fluorescent material represented by a general formula LaxCeySi6N8+x+y, wherein 2.0?x?3.5, 0<y?1.0, wherein the fluorescent material comprises 10 to 10000 ppm of Ba and/or Sr, and wherein a first wavelength and a second wavelength at which excitation intensities are 70% of the maximum of the excitation intensities are present in a wavelength range of 400 to 510 nm, the second wavelength being longer than the first wavelength, and a difference between the first wavelength and the second wavelength being 70 nm or more.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: March 30, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takashi Kaide, Shoji Hosokawa
  • Patent number: 10962821
    Abstract: A display device includes a first base substrate; a liquid crystal layer disposed on the first base substrate; an overcoat layer disposed on the liquid crystal layer and including epoxy polymer; a color conversion layer disposed on the overcoat layer; and a second base substrate disposed on the color conversion layer. The epoxy polymer is a polymer obtained by polymerizing 1 part to 50 parts by weight of a cardo-based binder resin; 1 part to 50 parts by weight of an epoxy-based monomer; and 1 part to 50 parts by weight of a bisphenol-based resin, with respect to 100 parts by weight.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: March 30, 2021
    Inventors: Jin Soo Jung, Young Gu Kim, Taek Joon Lee, Hye Lim Jang, Baek Kyun Jeon
  • Patent number: 10965097
    Abstract: A light emitting device includes: a base including: a main body, and a frame disposed on an upper surface of the main body; one or more laser elements disposed on the upper surface of the main body and positioned inward of the frame; a cover including: a support member that is fixed on an upper surface of the frame and has an opening inside the frame, and a light transmissive portion disposed so as to close the opening; and a lens body disposed on the support member and above the light transmissive portion. A difference between a thermal expansion coefficient of the light transmissive portion and a thermal expansion coefficient of the lens body is smaller than a difference between a thermal expansion coefficient of the light transmissive portion and a thermal expansion coefficient of the main body.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: March 30, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Hashimoto, Eiichiro Okahisa
  • Patent number: 10962871
    Abstract: A light source module and a projection apparatus are provided. The light source module includes a blue light source, a red light source, a wavelength conversion wheel and a filter wheel. The blue light source provides a blue light beam. The red light source provides a red light beam. The wavelength conversion wheel is disposed on a transmission path of the blue light beam and has a wavelength conversion region. The blue light beam is converted into a green light beam by the wavelength conversion region. The filter wheel is disposed on transmission paths of the blue light beam and the red light beam. The filter wheel includes a filter region and a diffusion region. A filter spectrum of the filter region includes a first bandwidth and a second bandwidth. The first bandwidth and the second bandwidth are separated with each other.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: March 30, 2021
    Assignee: Coretronic Corporation
    Inventors: Chien-Chung Liao, Hsuan-I Wu
  • Patent number: 10955103
    Abstract: A light module having light beam scanning, notably for motor vehicles, including a light source configured for generating a light beam which has a slow axis and a fast axis, a wavelength conversion element having a conversion surface, and scanning means arranged for scanning the conversion surface with the light beam, the light module including moreover a focussing system arranged for focussing the light beam onto the conversion element and for adapting the width of the light beam to the dimensions of the scanning means, the focussing system including a lens convergent along the fast and slow axes, the lens being provided with an input dioptre and an output dioptre of the light beam, the input dioptre being substantially cylindrical in such a way as to make the light beam converge only along the fast axis until inducing a point of inversion of the image of the light source inside the lens before the light beam reaches the output dioptre.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: March 23, 2021
    Assignee: Valeo Vision
    Inventor: Pierre Albou