With Polarizer Patents (Class 362/19)
  • Patent number: 10408408
    Abstract: A headlamp for a vehicle comprises: a light source emitting light forming a beam pattern, the light comprising light waves having an electric field vector oscillating in all directions perpendicular to a path of travel of the light wave, and the beam pattern comprising a foreground portion relative to a horizontal axis and a non-foreground portion; and one or more filters dedicated to the foreground portion of the beam pattern that does not transmit light waves having an electric field vector oscillating in a direction parallel to the horizontal axis. The light source can be one or more light emitting diodes. The filter can be an absorptive polarizer. The absorptive polarizer can be a polarizing sheet.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 10, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Linsheng Chen, Steven J. Antilla
  • Patent number: 10359155
    Abstract: A light-emitting apparatus includes an excitation light source that emits first light; a light-emitting device on an optical path of the first light, the light-emitting device emitting second light having a wavelength in air; and a first converging lens on an optical path of the second light. The light-emitting device comprises: a photoluminescent layer that emits the second light by being excited by the first light; and a light-transmissive layer on the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a surface structure comprising projections or recesses arranged perpendicular to a thickness direction of the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a light emitting surface perpendicular to the thickness direction, the second light emitted from the light emitting surface. The surface structure limits the directional angle of the second light emittied from the light emitting surface.
    Type: Grant
    Filed: July 10, 2016
    Date of Patent: July 23, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Taku Hirasawa, Yasuhisa Inada, Akira Hashiya, Nobuaki Nagao, Akira Tsujimoto
  • Patent number: 10283727
    Abstract: An organic EL element includes an anode, a cathode opposing the anode, a light-emitting layer disposed between the anode and the cathode, an electron transport layer disposed in contact with a cathode-side surface of the light-emitting layer, and an electron injection layer disposed between the electron transport layer and the cathode, in contact with the electron transport layer. Lowest unoccupied molecular orbital (LUMO) level of the electron transport layer is lower than at least one of LUMO level of the electron injection layer and Fermi level of a metal material included in the electron injection layer, and film thickness of the electron injection layer is greater than film thickness of the electron transport layer.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 7, 2019
    Assignee: JOLED INC.
    Inventor: Kosuke Mishima
  • Patent number: 10174249
    Abstract: Embodiments relate to a quantum rod composition, a quantum rod film, a display device with a quantum rod film, and a method of forming a quantum rod film. The quantum rod film includes a plurality of quantum rods and a polymer with a dipole side chain. Responsive to an external electric field, the major axis of the quantum rods and an axis of the dipole side chain arranges in the same direction. The display device includes a plurality of pixel and common electrodes for generating an electric field, and a backlight unit positioned under a first substrate. Responsive to receiving light from the backlight unit, the quantum rod film emits light polarized in a direction parallel to the major axis of the quantum rods.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: January 8, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Kyu-Nam Kim, Jin-Wuk Kim, Byung-Geol Kim, Kyung-Kook Jang, Hee-Yeol Kim, Sung-Il Woo, Tae-Yang Lee
  • Patent number: 10146061
    Abstract: A double-ring lens filter holder includes a limiting ring, a lock ring, a fixed filter, an adjusting ring, a rotary filter, a compression ring, and at least one guide rod. Each guide rod is mounted through a respective curved recess which is formed through the limiting ring, and each guide rod is mounted securely on the rotary filter. When the fixed filter and the rotary filter are both polarizing filters, in addition to moving the guide rod to adjust the polarizing and darkening effects, the curved recess can also limit the rotating angle of the guide rod to eliminate the cross pattern. Besides, the protruding guide rod allows the users to accurately find the position at which the rotary filter can be rotated.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: December 4, 2018
    Assignee: Microview Technology Corp.
    Inventor: Tzu-Shang Huang
  • Patent number: 10118534
    Abstract: An irradiation apparatus includes a shielded object detecting unit, an illumination setting unit, an irradiating device, and an illumination controlling unit. The shielded object detecting unit detects a shielded object. Glare is allowable to the shielded object at an upper limit of illumination brightness or less. A driver can visually recognize the shielded object at an lower limit of the illumination brightness or more. The illumination setting unit sets the illumination brightness based on the upper limit and the lower limit of the illumination brightness. The illumination controlling unit controls the irradiating device such that light is emitted in a predetermined irradiation pattern in which a first part of the shielded object is illuminated at the illumination brightness set by the illumination setting unit and a second part of the shielded object is illuminated at a higher illumination brightness than that of the first part.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: November 6, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shin-ichi Kojima, Keiichi Shimaoka, Toshihiko Tsukada, Kazuya Asaoka, Sho Masuda
  • Patent number: 10088753
    Abstract: A reconfiguring image brightness (RIB) module includes a switch, a first lens, a digital micro-mirror device (DMD), a second lens and a third lens. The switch selectively allows a first image having a light intensity distribution to pass, wherein the first image is formed after an illumination beam passes through a photomask. The first lens outputs a second image by modulating the size of the first image passes through the first lens, and the second image is imaged on the DMD. A third image having a reconfigured light intensity distribution is formed by the DMD, and the third image is outputted to the second lens by the DMD. A fourth image is formed after the third image passes through the second lens, a fifth image is formed after the fourth image passes through the third lens and the fifth image is outputted from the RIB module.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: October 2, 2018
    Assignee: Powerchip Technology Corporation
    Inventor: Chun-Liang Lin
  • Patent number: 10048426
    Abstract: A light guide includes a front surface. A back surface is opposite the front surface and includes a depression. A light incident surface introduces light. The light reflects off the depression and is emitted through the front surface. The depression includes an inclined side surface that faces the light incident surface. The inclined side surface includes a reflective curved surface that includes at least 50% of a surface area of the inclined side surface. In a cross section view of the depression in a plane substantially orthogonal to the front surface, a first tangent that touches a curved line defining the reflective curved surface of the inclined side surface and a second tangent that touches the curved line in a different location than the first tangent form a first angle that is greater than or equal to 0° and less than or equal to 30°.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: August 14, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Osamu Tanahashi, Hiroyuki Sekii
  • Patent number: 10006609
    Abstract: According to an aspect of the instant invention, an LED Engine is provided preferably for use with a Fresnel fixture having a globe socket wherein the LED Engine is plug compatible with the globe socket. A Fresnel lighting fixture generally includes a housing; a Fresnel lens supported from the housing; a focus rail; and a globe socket supported by the focus rail. The globe socket electrically receives a Fresnel globe or bulb. The plug compatible LED Engine of the present disclosure is positionable to be inserted in the globe socket of the existing Fresnel fixture thereby replacing the incandescent bulb. Alternatively, the globe socket may be removed and the LED Engine mounted to the focus rail.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: June 26, 2018
    Assignee: LITEPANELS, LTD.
    Inventors: Kevin C. Baxter, Fred H. Holmes
  • Patent number: 9955633
    Abstract: According to the present invention, provided is a system for irradiating a target object selectively with specific circularly polarized light, comprising a polarization-state control member that controls the polarization state of light to thereby generate circularly polarized light; and a circularly polarized light-reflecting member, wherein the circularly polarized light-reflecting member is disposed at a position on which the circularly polarized light emitted from the polarization-state control member can be incident; the circularly polarized light-reflecting member generates reflected light that selectively comprises circularly polarized light of the same sense as the incident circularly polarized light from the polarization-state control member; and the circularly polarized light-reflecting member is disposed such that the target object can be irradiated with at least a part of the reflected light.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 1, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Mitsuyoshi Ichihashi, Yoshihisa Usami
  • Patent number: 9939718
    Abstract: A light source apparatus includes a polarization conversion element, a fluorescent substance and a light source element. The polarization conversion element has a p/s-polarizing beam splitter film to separate polarization components of incident light into p-polarization component and s-polarization component. The fluorescent substance emits visible light as the incident light that is incident on the p/s-polarizing beam splitter film, which visible light is generated by that the fluorescent substance is excited by excitation light, and has a wavelength of longer wavelength region than a wavelength of the excitation light. The light source element emits a laser beam having a predetermined wavelength as the excitation light to irradiate the fluorescent substance with the excitation light so that a laser beam having a polarization plane between the polarization plane of p-polarized light and the polarization plane of s-polarized light exiting from the fluorescent substance is emitted as the incident light.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: April 10, 2018
    Assignee: SONY CORPORATION
    Inventor: Kazuya Matsumoto
  • Patent number: 9885813
    Abstract: A projection apparatus of the present disclosure includes a light-emitting element for emitting excitation light, a wavelength converter for receiving the excitation light, converting the excitation light into light of a different wavelength, and emitting the converted light as radiation light, and an optical filter for receiving the radiation light. The optical filter reflects long-wavelength light of wavelengths longer than wavelengths of the radiation light. With this configuration, the optical filter reflects long-wavelength light of wavelengths longer than wavelengths of the radiation light, thus being able to prevent the wavelength converter from being irradiated with long-wavelength light, and being able to prevent deterioration of the wavelength converter.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 6, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiko Yamanaka, Kiyoshi Morimoto, Seigo Shiraishi, Yoshihisa Nagasaki
  • Patent number: 9874780
    Abstract: The present invention provides a liquid crystal display device and a manufacturing method thereof. The liquid crystal display device uses a quantum rod orientation layer (2) to conduct parallel alignment of a quantum rod layer (3) so that the aligned quantum rod layer (3) may replace a conventional lower polarizer. The liquid crystal display device manufacturing method applies an inclined vapor deposition process to form a quantum rod orientation layer (2). The quantum rod orientation layer (2) includes a plurality of grooves (21) that has an extension direction substantially perpendicular to a transmission axis direction of an upper polarizer (7). A quantum rod layer (3) is then formed on the quantum rod orientation layer (2). The quantum rod layer (3) so formed includes a plurality of quantum rods (31) that has a long axis direction substantially parallel to the extension direction of the grooves (21), namely parallel alignment of the quantum rod layer (3).
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: January 23, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hongquan Wei, Yanan Wang
  • Patent number: 9863603
    Abstract: A high beam and a low beam is disclosed, the headlight including: a first light source unit; a second light source unit; a first light output unit; a second light output unit; and a controller configured to adjust a light quantity irradiated from the light source in response to a low beam mode or a high beam mode, and to control a beam output of the first light output unit and the second light output unit by allowing the first optical unit to be arranged selectively on a light path between the light source unit and the second optical unit.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: January 9, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Hong Lyeol Oh, Jun Park
  • Patent number: 9848540
    Abstract: The present invention provides a circular polarization illumination device which can irradiate right-circularly polarized light at a large light amount from a light source of right-circularly polarized light with a high efficiency and can irradiate left-circularly polarized light at a large light amount from a light source of left-circularly polarized light with a high efficiency, and a plant growth regulation method that can efficiently regulate the promotion or inhibition of the growth of plants by using the circular polarization illumination device. Moreover, the illumination device includes a light-emitting light source, a reflective polarizing plate, reirradiation unit, and circular polarization conversion unit.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: December 26, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Yoshihisa Usami, Mitsuyoshi Ichihashi, Yohsuke Takeuchi
  • Patent number: 9804312
    Abstract: A window for a display device and a display device including the same are provided. The window for the display device includes: a window substrate having a first groove in a display area transmitting an image and a second groove in a non-display area adjacent to the display area; a polarizing film in the first groove; and a printed layer in the second groove.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: October 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Seongyul Yang
  • Patent number: 9759859
    Abstract: Disclosed are a display device and a manufacturing method thereof. The display device includes a display panel and a backlight module, wherein the display panel includes a first display substrate, the backlight module includes a light guide plate and a plurality of optical films, the light guide plate and the first display substrate are subjected to assembling and aligning, and the optical films are packaged between the light guide plate and the first display substrate. The light guide plate and the first display substrate of the display device are packaged together, and the optical films are packaged therebetween, the optical films are laminated to be firmly fixed together to prevent the optical films from being scratched, so no protection layer needs to be arranged in the backlight module, in this way, the thickness of the backlight module is decreased, and the thickness of the display device is decreased beneficially.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: September 12, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qiangtao Wang, Yunsik Im
  • Patent number: 9732917
    Abstract: An optical assembly that is adapted to be located at a light path of light emitted from at least one light source and spaced apart from the at least one light source by a distance is provided. The optical assembly includes a wavelength converting device, which is a spatial structure, and a reflector. The reflector covers a portion of the wavelength converting device and exposes at least a portion of a region of at least one surface of the wavelength converting device. The light emitted from the at least one light source enters or leaves the wavelength converting device from at least the portion of area which is not covered by the reflector. An optical module including the light source and the optical assembly is further provided.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 15, 2017
    Assignee: PlayNitride Inc.
    Inventors: Sheng-Yuan Sun, Po-Jen Su, Kuan-Yung Liao, Gwo-Jiun Sheu
  • Patent number: 9720548
    Abstract: A flat illuminator having substantially reduced or no diffractive artifacts may be realized by using a partially reflective, embedded layer of extraction features, such as partially reflective facets or partially reflective bumpy surface, buried with substantially matching refractive index on both sides of layer. Implementations may be used in creating infrared (IR) illumination, either as a frontlight unit (FLU) or backlight unit (BLU), as well as for supporting a floating image of IR illumination in a retroreflective, reconvergent imaging or a retroimaging application.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 1, 2017
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: Karlton Powell
  • Patent number: 9690041
    Abstract: A light-emitting diode (LED) backlight unit includes first and second curved bottom floor reflectors exhibiting mirror image symmetry along a center line extending in a latitudinal direction, first and second sides disposed along a longitudinal direction, the first and second bottom floor reflectors disposed therebetween, first and second back reflectors disposed on distal ends of the first and second bottom floor reflectors, respectively, away from the center line, and LEDs disposed in or adjacent to the first and second back reflectors. A curvature of the first and second bottom floor reflectors respectively reach a maximum near the center line.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: June 27, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: David G Pelka, Simon Magarill
  • Patent number: 9676324
    Abstract: A device for assisting with driving an automotive vehicle, the vehicle being equipped with at least one illuminating device able to emit a beam for illuminating a road scene (SR) in front of the vehicle, the assisting device comprising a variable transmission screen that is intended to be placed between the road scene (SR) and a driver of the vehicle, the assisting device being configured to, when active, synchronously control a light emission of at least one light source of the illuminating device and a transmission coefficient of the variable transmission screen with a pulsed signal. The assisting device is configured so as to prevent antiphase and/or phase effects while and if a vehicle equipped with a device of the same type is approaching.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 13, 2017
    Assignee: Valeo Vision
    Inventors: David Hue, Hafid El Idrissi, Etienne Monchy
  • Patent number: 9664840
    Abstract: A light emitting module is provided. A light emitting unit includes a light emitting surface including a middle light emitting area and a peripheral light emitting area. The peripheral light emitting area is disposed on the opposite sides of the middle light emitting area. The light emitting unit emits light from the light emitting surface. A light guide plate includes a light incident surface adjacent to the middle light emitting area. The width of the light incident surface in a direction is smaller than the width of the light emitting surface in the direction, and the light incident surface is configured to receive part of the light that is emitted from the middle light emitting area, and another part of the light that is emitted from the peripheral light emitting area deviates from the light incident surface. A display device is also provided.
    Type: Grant
    Filed: August 23, 2015
    Date of Patent: May 30, 2017
    Assignee: E Ink Holdings Inc.
    Inventors: Sheng-Chieh Tai, I-Jeng Chen, Hsin-Tao Huang
  • Patent number: 9618791
    Abstract: The present disclosure describes an optical stack that includes an asymmetric diffuser. As described herein, use of an asymmetric diffuser in an optical stack reduces undesirable defects in a display while maintaining optical gain and/or contrast of the display. The asymmetric diffuser is less diffusive along a first direction that is parallel with linearly extending structures of an associated light directing film.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: April 11, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Adam D. Haag, Tri D. Pham, Steven H. C. Kong, Stephen J. Etzkorn, Robert L. Endres, Matthew B. Johnson
  • Patent number: 9619978
    Abstract: An operating status warning lamp apparatus for visually indicating at least one operating status or a plurality of different operating statuses for a technical appliance such as a machine, an installation, a vehicle or the like having at least one warning lamp unit (1, 4), wherein the warning lamp unit (1, 4) has at least one warning lamp element (3) for producing warning light (6), wherein the warning lamp unit (1, 4) has a radiating element (1), having at least one warning lamp radiating area (4), for radiating the warning light (6), wherein the radiating element (1) has at least one end face (2) oriented transversely with respect to the warning lamp radiating area (4), is proposed that can be produced without great design involvement, at reasonable cost and using new layout options.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: April 11, 2017
    Assignee: WERMA Holding GmbH + Co. KG
    Inventors: Daniel Kensy, Christian Hoehler
  • Patent number: 9606270
    Abstract: The disclosure provides an optical sheet roll which enables improvement of yield by reducing the parts that are not usable as an optical sheet when cutting out an optical sheet in an adequate size. Also disclosed is a method for manufacturing the optical sheet roll; a method for manufacturing an optical sheet using the optical sheet roll; and a method for manufacturing a display device using the optical sheet roll.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: March 28, 2017
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventor: Nobuo Naito
  • Patent number: 9594206
    Abstract: A complex substrate for a display apparatus, the complex substrate includes a lower base substrate including convex and concave patterns, the convex and concave patterns being integral with an upper side of the lower base substrate, a planarizing layer on the lower base substrate, the planarizing layer being integral with the convex and concave patterns, and the planarizing layer having different refractivity from the lower base substrate, and a wire grid pattern on the planarizing layer, the wire grid pattern including a plurality of nano wire metal patterns, each of the nano wire metal patterns having a width of no more than a micrometer.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: March 14, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yang-Ho Jung, Hoon Kang, Chul-Won Park, Jin-Ho Ju
  • Patent number: 9410677
    Abstract: Light sources are disclosed. A disclosed light source includes an optically reflective cavity that includes an input port for receiving light and an output port for transmitting light, a lamp that is disposed at the input port, and an optical stack that is disposed at the output port. The optical stack includes a forward scattering optical diffuser that is disposed at the output port and has an optical haze that is not less than about 20%, and an optical film that is disposed on the optical diffuser. The optical film enhance total internal reflection at the interface between the optical film and the optical diffuser. The optical film has an index of refraction that is not greater than about 1.3 and an optical haze that is not greater than about 5%. The optical stack also includes a reflective polarizer layer that is disposed on the optical film. Substantial portions of each two neighboring major surfaces in the optical stack are in physical contact with each other.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: August 9, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John A. Wheatley, Tao Liu, Encai Hao, William Blake Kolb, Michael Benton Free
  • Patent number: 9376020
    Abstract: A combination display instrument in a vehicle has a plurality of display elements and/or display scales inserted into or attached onto a common base. A polarizing film, which is designed to correspond to the base, is arranged in the line of vision of an observer in front of the base. The polarizing film is held in position on the base in a form-fitting and/or force-fitting manner in an assembled state of the combination display instrument by corresponding molded sections in or on a housing of the combination display instrument.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: June 28, 2016
    Assignee: Johnson Controls Automotive Electronics GmbH
    Inventors: Manfred Süss, Isabel Hoffmann, Gerhard Kammerer, Heinrich Behrends, Martin Mayer, Nicolas Mehl, Peter Langer
  • Patent number: 9316380
    Abstract: The present invention relates to an optical plate for lighting capable of improving the brightness of light emitted from a light source and adjusting a viewing angle to alleviate side glare phenomenon. The present invention also relates to a lighting. The purpose of the present invention is to provide a structure in which a light-diffusing member and an optical viewing angle adjusting member can independently function; an integrated optical plate for lighting, wherein the thickness of the optical plate for lighting is reduced by the lamination of a light-diffusing member, a transmission layer, and an optical viewing angle adjusting member; a lighting apparatus using thereof.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 19, 2016
    Assignee: MIRAENANOTECH CO., LTD.
    Inventors: Sung-Woo Noh, Hak-Chung Lee, Joon-Hwan Lee, Su-Young Lee
  • Patent number: 9273849
    Abstract: It is an object of the invention to provide an improved illumination apparatus for the comfortable illumination of a region monitored by a night vision instrument. To this end, an illumination apparatus 1 having an illumination device 8 is provided, the illumination device 8 comprising at least one LED 9a,b,c and the illumination device 8 being formed in order to emit mixed light with light components in the visible range, and having an optical filter device 10 for filtering the mixed light emitted by the illumination device 8, the optical filter device 10 being formed in order to block light with a cutoff wavelength of more than 610 nm, wherein the illumination device 8 comprises a white LED 9a, a green LED 9b and a red LED 9c, which together produce the mixed light.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: March 1, 2016
    Assignee: DIEHL AEROSPACE GMBH
    Inventor: Frank Schmid
  • Patent number: 9265967
    Abstract: A device for delivering light to a nasal cavity includes a base; an adjustable portion operably connected to the base. The adjustable portion permits ready manipulation of the device when in the nasal cavity. The adjustable portion includes a tapered tip for insertion into the nasal cavity; a light source disposed inside of the tapered tip; and a power source to supply power to the device.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: February 23, 2016
    Assignee: LUMIMED, LLC
    Inventor: Denis Bouboulis
  • Patent number: 9188730
    Abstract: A light source module comprises a plurality of laser light sources, a lens module, a plurality of optical components, and a light guiding plate. The lens module includes a first lens having a rear arced plane and a plurality of second lenses each having a front arced plane, and the second lenses are positioned on the first lens and protruded forwardly from the first lens toward the optical components. The optical components are positioned on light path of light emitted from the laser light sources in sequence and each correspond to one second lens, and the optical components are, except the farthest one from the laser light sources, beamsplitters, respectively and used for reflecting a part of the light emitted from the laser light sources to the second lenses and permitting another part of the light to penetrate therethrough to a next optical component.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: November 17, 2015
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Po-Chou Chen
  • Patent number: 9176365
    Abstract: An illumination device includes: an optical element which including a hologram recording medium including a first zone and a second zone and can reproduce an image of a scattering plate; an irradiation device which irradiates the optical element with a coherent light beam such that the light beam is allowed to scan the hologram recording medium; and a polarization control unit provided on an optical path of the light beam to an illuminated zone. The light beams incident on respective positions of the hologram recording medium are allowed to reproduce the image superimposed on the illuminated zone. The polarization control unit controls polarization of the light beams such that the light beam incident on the first zone to travel toward the illuminated zone and the light beam incident on the second zone to travel toward the illuminated zone are configured with different polarization components.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: November 3, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Makio Kurashige, Kazutoshi Ishida, Tomoe Takanokura, Yasuyuki Ooyagi
  • Patent number: 9170352
    Abstract: A compound optical film includes an unitary two-layer structure with of a light guide layer and a light reflective layer attached on the light guide layer. A number of light scattering particles are dispersed in the light guide layer adjacent to an interface between the light guide layer and the light reflective layer. The compound optical film can reduce the thickness of backlight module while the compound optical film is used in backlight module.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: October 27, 2015
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Da-Wei Lin, Tai-Cherng Yu
  • Patent number: 9158041
    Abstract: An optical sheet is incorporated in a direct type surface light source device including a light source and is configured to allow light emitted from the light source to exit after changing a travel direction of the light. The optical sheet has a light exiting side lens part including unit lenses juxtaposed to one another and each unit lens is convex toward a light exiting side. A light scattering layer, configured to scatter the light, is provided to each unit lens. The light scattering layer extends along a light exiting side surface of each convex unit lens and constitutes the light exiting side surface of the unit lens. A thickness of the light scattering layer around an apex portion of each unit lens is greater than the thickness of the light scattering layer around each end portion of the unit lens.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: October 13, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masahiro Goto, Daijiro Kodama, Junichi Sawanobori, Akiko Goto, Hiroshi Yamamoto, Wataru Tokuhara
  • Patent number: 9136500
    Abstract: A display panel and a method for fabricating the same are provided. The display panel includes a substrate, a transparent film, and a light-gathering film. The substrate includes organic light emitting diode (OLED) elements. The transparent film is disposed on the substrate. The light-gathering film is disposed on the transparent film. In the fabrication method of the display panel, a substrate is first provided, in which the substrate includes OLED elements. Then, a transparent film is provided, in which the transparent film has a first surface and a second surface opposite to the first surface. Thereafter, a light-gathering material is coated to form a light-gathering film on the first surface of the transparent film. Then, a sensing layer is disposed on the second surface of the transparent film. Thereafter, the transparent film is disposed on the substrate to sandwich the sensing layer between the transparent film and the substrate.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: September 15, 2015
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Chun-Pin Liu, Ming-Hung Chung, Min-Chuan Wu, Jion-Ting Wu
  • Patent number: 9122011
    Abstract: A display device includes: a display panel assembly; and a backlight unit. The backlight unit includes an optical sheet, a reflective sheet and a light source. One of the optical sheet and the reflective sheet includes a material which supplies a sound by receiving an electrical field.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Hak Oh, Ha-Yun Kang, Jong Seo Lee
  • Patent number: 9086619
    Abstract: An optical device featuring high efficiency and luminance is provided. The optical device includes carrier generation layer that causes fluorescence to occur with incident light, plasmon excitation layer that excites first surface plasmons with said fluorescence, carrier generation layer being laminated on carrier generation layer, and exit layer that extracts the first surface plasmons or light that occurs on an opposite surface of carrier generation layer contact surface of plasmon excitation layer to the outside. Carrier generation layer contains metal particles that excite second surface plasmons with said incident light.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: July 21, 2015
    Assignee: NEC CORPORATION
    Inventors: Masanao Natsumeda, Shin Tominaga, Masao Imai
  • Patent number: 9048459
    Abstract: A display device and a method of manufacturing the same. The display device includes a substrate, an organic light emitting diode (OLED) arranged on the substrate, a thin film encapsulation layer arranged on the substrate to cover the OLED and including an inorganic material layer and an organic material layer, and an anti-reflection layer arranged on the thin film encapsulation layer and including a dielectric layer and a metal layer.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: June 2, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hwan Cho, Jin Hwan Jeon, Soo Youn Kim, Sang Hyun Park, Yoon Hyeung Cho, Seung Yong Song
  • Publication number: 20150146132
    Abstract: Provided is a surface light source device capable of producing directed light. The surface light source device according to the present invention is provided with: LEDs (light source); a case having a light-emitting surface provided with at least one opening (a light-transmitting part), and enabling the light from the LED to be repeatedly reflected and guided within an internal space, and emitted through the aperture part; and a lens sheet (lens member) that is disposed facing the light-emitting surface of the casing and includes at least one lens. The position of the focal point of the lens is substantially the same as the position of the aperture.
    Type: Application
    Filed: June 7, 2013
    Publication date: May 28, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shohei Katsuta, Tsuyoshi Kamada, Daisuke Shinozaki, Masahiro Tsujimoto
  • Patent number: 9039215
    Abstract: A light source device includes a light source unit concluding LD element (1) for emitting a laser beam polarized in a particular direction and lens (2) for condensing the laser beam emitted from LD element (1) and phosphor layer (3) excited by the laser beam condensed by lens (2) of the light source unit to discharge incoherent light. The incident angle of the laser beam to phosphor layer (3) is larger than 0° and smaller than 90°, and the laser beam enters phosphor layer (3) as P-polarized light.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: May 26, 2015
    Assignee: NEC CORPORATION
    Inventor: Masahiko Ohta
  • Publication number: 20150131258
    Abstract: An illumination system defined a primary optical axis is provided. The illumination system comprises a light source, a first lens group, an integrator rod, and a second lens group successively located on the primary optical axis. The light source is configured to output a light. The first lens group is configured to reduce an aperture angle of the light to about 27 degrees. The integrator rod is configured to make the light uniformly. The second lens group is configured to amplify an illumination field of the light and reduce the aperture angle of the light to about 3 degrees.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventors: JUN ZHU, XUAN PAN, GUO-FAN JIN, SHOU-SHAN FAN
  • Patent number: 9028108
    Abstract: Illumination devices whose function are to inject light into backlights, particularly into backlights that incorporate a recycling cavity formed by a front (50) and back (52) reflector, are described. In some embodiments, the device includes a light source (59) disposed proximate the back reflector, and first (42) and second (44) reflecting structures. The first reflecting structure includes an inner reflective surface (41b) at least a portion of which is inclined to form a wedge with the back reflector. The wedge partially collimates and directs light from the light source generally away from the recycling cavity. The second reflecting structure receives light exiting the wedge and redirects such light into an injection beam directed into the recycling cavity.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: May 12, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas R. Hoffend, Jr., David G. Freier, Rolf W. Biernath, Anthony J. Piekarczyk, Michael A. Meis
  • Patent number: 9028070
    Abstract: Provided is a light-emitting element having high luminance and high directivity and emitting light in a controlled polarization state. The light-emitting element comprises substrate 3 and light emitting part 10 disposed on substrate 3 for emitting light in which light intensity of a polarization component in first direction x parallel to substrate 3 is higher than light intensities of polarization components in other directions. Light emitting part 10 includes active layer 12 for generating light and a plurality of structural bodies 14a disposed on a light-emitting side of light emitting part 10 with respect to active layer 12 and arrayed two-dimensionally along a surface substantially parallel to active layer 12. Each of structural bodies 14a has width w1 along first direction x and width w2 along second direction y perpendicular to first direction x, width w1 along first direction x and width w2 along second direction y being different from each other in a cross section parallel to active layer 12.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: May 12, 2015
    Assignee: NEC Corporation
    Inventors: Mizuho Tomiyama, Ryuichi Katayama
  • Publication number: 20150124195
    Abstract: Embodiments of a display device and a method of reducing optical leakage from a backlight unit of a display device are described. The display device includes a backlight unit, an image generating unit coupled to the backlight unit and a blocking structure. The backlight unit is configured to transit light to the image generating unit and the blocking structure is configured to prevent the light from reaching the image generating unit without passing through the optical processing unit. The backlight unit includes a light source unit and an optical processing unit having a quantum dot film coupled to the light source unit. The method of reducing optical leakage from the backlight unit of the display device includes providing a first blocking structure to a portion of the light source unit and providing a second blocking structure to a portion of the optical processing unit.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Applicant: Nanosys, Inc.
    Inventors: Jian CHEN, Steven Gensler
  • Publication number: 20150116977
    Abstract: A transparent illuminated display system, typically for use in automobile race events, including a highly flexible and transparent PCB board with ultra-low profile LED's mounted to it. The flexible and transparent PCB boards can be in the shape of a single or multiple numeric or alphanumeric displays. The face of the display which would make contact with the face of a wind screen would include an adhesive element. The transparent illuminated display is mounted to a vehicle as a kind of sticker on the inside or outside of a racecar windscreen, back window and/or side windows. Each of the displays could be wired to power and data lines and illuminate the required numbers or text to show the position and other info of the car in the race.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventor: Hendrikus A. Le Sage
  • Patent number: 9016884
    Abstract: A polarization illumination system 1000a according to the first invention of the present patent application includes an illumination means having light source means 8, polarizing means 10 for receiving and polarizing light emitted from the light source means, a birefringence medium 20 for receiving and double refracting the light emitted from the light source means and transmitted through the polarizing means. Illumination space S to which the light of the illumination means is illuminated has a polarized reflection object 60 that reflects an incident light in a way that the reflected light partly or fully polarized.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: April 28, 2015
    Inventors: Uk Choi, Ju Won Kim
  • Patent number: 9016883
    Abstract: The light emitting element includes and active layer that produces light; a polarizer layer having a first region that allows a polarization component in a first direction in the light produced in the active layer to pass through and reflects other polarization components, and a second region that allows a polarization component in a second direction perpendicular to the first direction to pass through and reflects other polarization components; a wave plate layer having a third region and a fifth region that the light exiting from the first region enters, and a fourth region and a sixth region that the light exiting from the second region enters, the wave plate layer causing the lights that have entered the third to sixth regions to exit as lights in the same polarized state; and a reflective layer that reflects the lights reflected by the first region and the second region.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: April 28, 2015
    Assignee: NEC Corporation
    Inventor: Ryuichi Katayama
  • Publication number: 20150109755
    Abstract: In an embodiment, a display panel unit includes a reflective polarizing layer, a transparent layer, and a display panel. The polarizing layer transmits a first polarized component of light incident on an incident surface to an exit surface and reflects a second polarized component of the light. The transparent layer transmits the first and second polarized component of the light incident on a second surface to a first surface adhered to the incident surface and transmits the second polarized component reflected by the polarizing layer to be incident on the first surface to the second surface. The panel faces the exit surface, and selectively transmits the light exiting from the exit surface.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 23, 2015
    Inventor: Michikazu Noguchi
  • Publication number: 20150103507
    Abstract: Light sources are disclosed. A disclosed light source includes an optically reflective cavity that includes an input port for receiving light and an output port for transmitting light, a lamp that is disposed at the input port, and an optical stack that is disposed at the output port. The optical stack includes a forward scattering optical diffuser that is disposed at the output port and has an optical haze that is not less than about 20%, and an optical film that is disposed on the optical diffuser. The optical film enhance total internal reflection at the interface between the optical film and the optical diffuser. The optical film has an index of refraction that is not greater than about 1.3 and an optical haze that is not greater than about 5%. The optical stack also includes a reflective polarizer layer that is disposed on the optical film. Substantial portions of each two neighboring major surfaces in the optical stack are in physical contact with each other.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 16, 2015
    Inventors: John A. Wheatley, Tao Liu, Encai Hao, William Blake Kolb, Michael Benton Free