Light Source Patents (Class 362/611)
  • Patent number: 10712598
    Abstract: A display apparatus includes a display unit, a support, a cover member, and a first interposition member. The display unit displays an image. The support supports the display unit. The cover member is disposed with a gap between the cover member and the display unit and covers the display unit. The first interposition member is interposed between the support and the cover member, and is in contact with the support and the cover member. The first interposition member has elasticity and thermal conductance.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 14, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidefumi Takeuchi, Tadaaki Yoshikane
  • Patent number: 10711960
    Abstract: Side light LED troffer tube. In an aspect, a side light LED tube is provided that includes a tube having at least one light receiving portion configured to receive light and gradient optics formed on the tube. The gradient optics providing a transparency gradient configured to distribute the light to achieve a selected emitted light intensity variation across a selected surface of the tube.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 14, 2020
    Assignee: BRIDGELUX INC.
    Inventor: Todd Farmer
  • Patent number: 10674108
    Abstract: An image display device is a self-luminous type device including a light emitting portion, and a casing portion of a display device unit has a heat dissipating structure portion through which a part of the image display device is exposed for heat dissipation. In manufacturing the display device unit, when performing simple and reliable assembly while securing a high heat dissipation characteristic, for example, by using characteristics of a silicon substrate, high accurate positioning is performed in a display device positioning portion.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takahiro Totani, Masayuki Takagi, Yoshitaka Hama
  • Patent number: 10620358
    Abstract: A light guide film which is adapted for use with a light source has a light transmissive substrate and a light-transmissive member unit. The substrate has a light-exiting top surface, a bottom surface that is opposite to the top surface and a lateral surface that interconnects the top and bottom surfaces and that is adapted to face toward the light source. The member unit includes a bottom member that is disposed on the bottom surface of the substrate, and a lateral member that is connected to the lateral surface of the substrate and that is adapted to be disposed between the light source and the lateral surface of the substrate. The substrate has a refractive index which is less than that of the member unit.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: April 14, 2020
    Assignees: RADIANT OPTO-ELECTRONICS (SUZHOU) CO., LTD., RADIANT OPTO-ELECTRONICS CORPORATION
    Inventors: Yuan-Chen Chung, Wei-Hsuan Chen
  • Patent number: 10606123
    Abstract: A display device includes a backlight unit. A display module configured to display an image is disposed on the backlight unit. A light conversion member is disposed between the display module and the backlight unit. The backlight unit includes a light source unit configured to generate light and a light guide plate configured to guide the light generated by the light source unit. The light conversion member includes a transfer layer disposed on the backlight unit and a light conversion layer disposed on the transfer layer.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: March 31, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jinho Park, Sang-gil Lee, Taegil Kang, Namheon Kim, Hyuk-hwan Kim, Haeil Park, Baekhee Lee, Eunguk Lee, Jaejin Choi
  • Patent number: 10596543
    Abstract: A light irradiation device includes a light source having a plurality of solid-state elements disposed on a substrate to be defined by a first direction and a second direction in a plurality of rows and irradiate the irradiation target with light from a third direction, an optical element refracting light from the solid-state elements, emitting the light and narrowing a spread angle of light to be emitted from the solid-state elements relative to the third direction, a first reflection portion having at least two first reflection surfaces on a downstream side in the third direction of the irradiation target and reflecting a part of light incident on the first reflection surface to the irradiation target, and a second reflection portion having a pair of second reflection surfaces disposed between the optical element and the first reflection portion and guiding light from the optical element to the first reflection surface.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: March 24, 2020
    Assignee: HOYA CANDEO OPTRONICS CORPORATION
    Inventor: Kazutaka Shito
  • Patent number: 10536603
    Abstract: An objective of the present disclosure is to obtain a light guide and an image reading apparatus capable of efficiently irradiating an object to be irradiated (1). The light guide and the image reading apparatus include a rod-shaped light guide main body (2) extending in the longitudinal direction, a first end face (3) that is an end face of the light guide main body (2) along the transverse direction, a light scattering pattern (5) that scatters light that enters from the first end face (3) and is guided inside the light guide main body (2), and a light emission surface portion (6) formed on the light guide main body along a longitudinal direction, the light emission surface portion (6) being a surface from which the light scattered at the light scattering pattern (5) is emitted to outside the light guide main body (2) after being reflected on a wall surface of the light guide main body (2).
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: January 14, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Taku Matsuzawa, Toru Shiraki, Hideki Kunishio, Daisuke Ohama
  • Patent number: 10528086
    Abstract: A wearable device and an electronic device are provided. The wearable device includes a flexible circuit configured to electrically connect a touch sensor to a main board, a first waterproof member contacting a first surface of the flexible circuit and being elastically deformable, and a second waterproof member contacting a second surface of the flexible circuit and being elastically deformable.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: January 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Seokwhan Chung
  • Patent number: 10527250
    Abstract: Embodiments of the present invention relate to a lighting apparatus which allows a three dimensional effect to be felt while surface light is emitted in a light source using a half-mirror member configured to reflect and transmit some light. Particularly, the present invention employs a half-mirror member configured to transmit some light emitted from a light source module configured to emit surface light and reflect the remaining light to implement an image like that reflected by a mirror when the lighting apparatus is off and a light image through which various three-dimensional images are felt when the lighting apparatus is on.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: January 7, 2020
    Assignee: LG Innotek Co., Ltd.
    Inventors: Moo Hyun Cho, Ki Beom Kim, Hyun Duck Yang, Ki Chang Lee, Byoung Eon Lee
  • Patent number: 10473957
    Abstract: A reflective display apparatus including a reflective display panel, a transparent cover plate, and a light source is provided. The transparent cover plate is disposed on one side of the reflective display panel. An air gap exists between the reflective display panel and the transparent cover plate. The light source is disposed between the reflective display panel and the transparent cover plate, and a light emitted by the light source travels towards the air gap before irradiating the transparent cover plate or the reflective display panel.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: November 12, 2019
    Assignee: E Ink Holdings Inc.
    Inventors: Sheng-Chieh Tai, Chao-Chun Cheng, Ching-Huan Liao
  • Patent number: 10466540
    Abstract: A display device is provided that includes a display panel, a light guide plate on a rear side of the display panel, a reflector on a rear surface of the light guide plate, a cover bottom on a rear surface of the reflector, wherein the cover bottom is made of a glass material, and a light-emitting diode (LED) housing including an LED on one end thereof to supply light to an end of the light guide plate, another end of the LED housing being coupled to a rear surface of an end of the cover bottom.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: November 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: JongTak Aeo, SangMo Yang
  • Patent number: 10347123
    Abstract: Method for controlling the light distribution of a traffic route luminaire (1) in a network of luminaires, which is preferably also organized as a mesh network. The luminaire has a luminaire head having a settable light module and a controller, the light distribution of the luminaire being variable. The luminaire communicates luminaire data to at least one server, the luminaire data being luminaire-specific and including the installation location of the luminaire. The method comprises the steps of: —automatically allocating a light distribution to the luminaire (1) in accordance with the communicated luminaire data; —automatically setting the light module on the basis of the allocated light distribution; and determining, by said at least one server, a light distribution class of the traffic route luminaire on the basis of a traffic route topology (2,3,4,5,6).
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: July 9, 2019
    Assignee: SCHREDER
    Inventors: Didier Wellens, Helmut Schröder, Daniel Brand, Jörg Richter
  • Patent number: 10310168
    Abstract: A light guide plate includes a light incident surface to which a light is configured to be incident, a light exit surface from which the light incident through the light incident surface is configured to exit, a bottom surface facing the light exit surface configured to reflect at least a portion of the incident light, and a scattering pattern disposed on the bottom surface. The scattering pattern includes a first protrusion portion protruding from the bottom surface, a recess portion disposed along a circumference of the first protrusion portion and recessed from the bottom surface and a second protrusion portion spaced apart from the first protrusion portion and disposed along a portion of the recess portion.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: June 4, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-Joo Kim, Sunhee Oh, Dongyeon Kang
  • Patent number: 10267971
    Abstract: A light guide film which is adapted for use with a light source has a light transmissive substrate and a light-transmissive member unit. The substrate has a light-exiting top surface, a bottom surface that is opposite to the top surface and a lateral surface that interconnects the top and bottom surfaces and that is adapted to face toward the light source. The member unit includes a bottom member that is disposed on the bottom surface of the substrate, and a lateral member that is connected to the lateral surface of the substrate and that is adapted to be disposed between the light source and the lateral surface of the substrate. The substrate has a refractive index which is less than that of the member unit.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: April 23, 2019
    Assignees: RADIANT OPTO-ELECTRONICS (SUZHOU) CO., LTD., RADIANT OPTO-ELECTRONICS CORPORATION
    Inventors: Yuan-Chen Chung, Wei-Hsuan Chen
  • Patent number: 10241596
    Abstract: Disclosed is a touch keypad comprising: an upper plate having a flat plate shape; a touch sensor formed on an upper side of the upper plate; a lower plate disposed to be spaced on a lower side of the upper plate; a connection member connecting the upper plate to the lower plate and supporting the upper plate so that the upper plate ascends and descends; a position sensor for detecting whether the upper plate ascends or descends; and a control unit for selecting a keypad mode or mouse mode according to a detected value of the position sensor.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: March 26, 2019
    Assignees: WOORI ENGINEERING CO., LTD., LENTUS
    Inventors: Seung Min Hong, Hyun Dong Jin
  • Patent number: 10215907
    Abstract: The present invention relates to a substrate for color conversion, a manufacturing method therefor, and a display device comprising the same and, more specifically, to a substrate for color conversion for not only securing the long-term stability of quantum dots but also exhibiting excellent color conversion efficiency, a manufacturing method therefor, and a display device comprising the same. To this end, the present invention provides a substrate for color conversion, a manufacturing method therefor, and a display device, the substrate for color conversion comprising: a thin plate glass; a coating layer for quantum dots formed on one surface of the thin plate glass; a light guide plate disposed to face the coating layer for quantum dots, a light emitting diode being disposed on the sides thereof; and a sealing material which is formed between the thin plate glass and the light guide plate and which blocks the coating layer for quantum dots from the outside.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: February 26, 2019
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Yoon Seuk Oh, Hyung Soo Moon, Ki Yeon Lee, Young Suk Lee, Nae Young Jung, Yoon Young Kwon, Choon Bong Yang
  • Patent number: 10203533
    Abstract: A display device includes a display panel, a cover, a bonding member, a guide mold and at least one fastening member. The cover is above the display panel. The bonding member is on a surface of the cover and includes a plurality of non-recessed portions and a plurality of recessed portions between the plurality of non-recessed portions. The guide mold accommodates a light source below the display panel and includes a plurality of protruding portions protruding from a side surface thereof, each of the plurality of protruding portions respectively corresponding to each of the plurality of non-recessed portions. The at least one fastening member penetrates a corresponding one of the plurality of protruding portions of the guide mold to be fastened to a corresponding one of the plurality of recessed portions.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: February 12, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventor: ChangGong Kang
  • Patent number: 10126488
    Abstract: Exemplary embodiments of the inventive concept provide a display device including a bottom cover having a bottom portion and a sidewall and a support frame. The bottom portion has at least one rounded corner having a first radius, and a sidewall is bent upward from an edge of the bottom portion. The support frame includes at least one rounded corner having a shape corresponding to the rounded corner of the bottom portion and having a second radius greater than the first radius.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: November 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Geonwoo Lee, Byungjin Kim, Kyung-ryul Yu, Jungsoo Ok
  • Patent number: 10129977
    Abstract: A semiconductor device mounting structure includes a semiconductor device and a mounting substrate. The semiconductor device includes a first external connection terminal and a device-side mounting insulating region. The first external connection terminal is provided at a first end and has a metal region on a semiconductor mounting surface of the semiconductor device. The device-side mounting insulating region is defined by the metal region on the semiconductor mounting surface. The semiconductor mounting surface faces a substrate mounting surface. The mounting substrate has on the substrate mounting surface a land pattern made of an electrically conductive material to be electrically connected to the first external connection terminal. The land pattern is provided in a first shape to surround the device-side mounting insulating region and includes a land-side insulating region which has a second shape to correspond to a periphery of the device-side mounting insulating region.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: November 13, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Nakabayashi, Akira Hori
  • Patent number: 10107950
    Abstract: A liquid crystal display (LCD) device including a backlight with an LED assembly. The LED assembly includes a flexible light combiner and two or more different color LEDs optically coupled with a first end of the flexible light combiner. The flexible light combiner includes light channels that transmit color light, and output the color light at a second end of the flexible light combiner. The second end defines a light output region of the flexible light combiner. The light output regions of multiple LED assemblies are arranged behind an LCD panel, along one or more edges, to illuminate the LCD panel. The LED assembly provides edge-lit backlighting with enhanced brightness and color gamut, and flexible LED placement within the LCD device.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: October 23, 2018
    Assignee: Facebook Technologies, LLC
    Inventors: Shie Ping Jeffrey Tseng, Evan M. Richards, Jianru Shi, Yue Shi
  • Patent number: 10082617
    Abstract: This invention relates to a light guide plate and a backlight unit including the same, and more particularly to a light guide plate, which is configured such that a surface layer having desired optical properties and hardness is provided in the form of a thin film on one surface of a substrate layer having excellent optical properties and exhibiting dimensional stability regardless of an external environment, thus manifesting superior processability and scratch resistance and minimizing luminance degradation, and to a backlight unit including the same.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: September 25, 2018
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Min Jeong Kim, Kyoung Hwa Kim, Sang Hwa Shim, Chun Sung Cho
  • Patent number: 10078173
    Abstract: A display device includes a backlight unit and a display panel disposed on the backlight unit. The backlight unit includes a light guide plate including a plurality of charged particles, a light source unit disposed at a side of the light guide plate and providing light to the light guide plate, and a transparent electrode disposed under the light guide plate. Each of the plurality of charged particles includes first and second charged portions which have charge values of which polarities are different from each other. The first charged portion reflects the light received from the light source unit, and the second charged portion absorbs the light received from the light source unit. Positions of the first and second charged portions of each of the plurality of charged particles are controlled based on a voltage applied to the transparent electrode.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 18, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junwoo You, Taeho Lee, Sunhee Oh
  • Patent number: 10031280
    Abstract: A display device includes: a lower frame having a planar shape, where a first groove is defined in an edge of the lower frame; a first intermediate frame coupled to the lower frame to define an accommodating space, where the first intermediate frame includes a side wall portion on an edge of the lower frame; a first adhesive member on the first groove, where the first adhesive member fixes the first intermediate frame to the lower frame; a second intermediate frame on the first intermediate frame; a display panel on an upper surface of the second intermediate frame; and a second adhesive member on the upper surface of the second intermediate frame, where the second adhesive member fixes the display panel to the second intermediate frame.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: July 24, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seongsik Choi, Cheuljin Park
  • Patent number: 9785040
    Abstract: A wavelength conversion element includes: a substrate; an intermediate layer that is provided on the substrate and has a refractive index less than a refractive index of the substrate; a dichroic layer that is provided on the intermediate layer; and a fluorescent layer that is provided on the dichroic layer and that is excited by light with a first wavelength band and thereby emits light with a second wavelength band different from the first wavelength band.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: October 10, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Wataru Yasumatsu
  • Patent number: 9780268
    Abstract: Submount based surface mount design (SMD) light emitter components and related methods are disclosed. In some aspects, light emitter components can include a submount with a first side having a first surface area, first and second electrical contacts disposed on the first side of the submount, and at least one light emitter chip on the first side. In some aspects, the electrical contact area can be less than half of the first surface area of the first side of the submount. Components disclosed herein can include low profile parts or domes where a ratio between a dome height and a dome width is less than 0.5. A method of providing components can include providing a panel of material and LED chips, dispensing a liquid encapsulant material over the panel, and singulating the panel into individual submount based components after the encapsulant material has hardened.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 3, 2017
    Assignee: Cree, Inc.
    Inventors: Christopher P. Hussell, Erin Welch, Jesse Colin Reiherzer, Peter Scott Andrews
  • Patent number: 9709728
    Abstract: A light guide includes an incident surface, an exit surface and a reflective surface. The reflective surface is located opposite to the exit surface to extend in the main scanning direction and includes a plurality of light reflecting patterns formed to reflect the incident light toward the exit surface. The light reflecting patterns have an oval hemispherical shape rising toward the exit surface and a first diameter of the oval hemispherical shape along a sub-scanning direction is equal to or longer than a second diameter thereof along the main scanning direction. The light reflecting patterns are formed to vary the ratio of the first diameter to the height of the oval hemispherical shape depending upon the location on the reflective surface in the main scanning direction.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: July 18, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Kei Ouchi
  • Patent number: 9703031
    Abstract: A light guide includes opposed major surfaces and a light input edge extending therebetween. An array of micro-optical elements of well-defined shape at at least one of the opposed major surfaces corresponds to the light input edge. Each of the micro-optical elements in the array includes a longitudinal axis arranged within the range of angles relative to the light input edge. A path linearly extending along the light guide from the light input edge intersects at least a portion of the micro-optical elements in the array, at least one of the micro-optical elements along the path arranged with its longitudinal axis at a positive angle relative to the light input edge, and at least another one of the micro-optical elements along the path arranged with its longitudinal axis at a negative angle relative to the light input edge.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: July 11, 2017
    Assignee: Rambus Delaware LLC
    Inventors: Dane A. Sahlhoff, Greg Coghlan, Todd Winski, Kurt Starkey
  • Patent number: 9366802
    Abstract: A curved display device includes a display panel having a display area on which an image is displayed; a receiving member receiving the display panel; and a cover member covering a border of the display panel to combine with the receiving member. The display panel has a bent shape along a first direction and a second direction crossing the first direction and each of the receiving member and the cover member is bent to maintain the bent shape of the display panel.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Cheolse Lee, Jeongman Son, Cheong Hun Lee, JinYoung Lee, Yun-Gun Lee
  • Patent number: 9297506
    Abstract: LED-based light fixtures are presented that are configured for attachment to a substrate to advantageously function without a reflector and without a backing plate. A light fixture according to an embodiment includes a waveguide having a front surface and a rear surface for emitting light, the waveguide configured to optically couple to a surface of a substrate. The light fixture also includes at least one LED light source disposed on an edge of the waveguide to emit light into the waveguide. The waveguide is configured to emit a first portion of the light above the rear surface for reflection by the surface of the substrate back into the waveguide and through the front surface of the waveguide, and to emit a second portion of the light through the front surface.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: March 29, 2016
    Assignee: GE LIGHTING SOLUTIONS, LLC
    Inventors: Sebastien Magnan, Christopher Henry Wilson, Francois Turgeon
  • Patent number: 9201269
    Abstract: The present invention discloses a backlight module configured with a light source, a waveguide, a reflector and an optical film. The waveguide includes a light inlet surface facing the light source, and a light emitting surface which is adjacent to the light inlet surface, and a bottom surface opposite to the light emitting surface. The reflector is disposed under the bottom surface of the waveguide. An optical film is disposed above the light emitting surface of the waveguide. Wherein the reflector is coated with a gradation color layer composed by yellow graduating to blue so as to ensure the projected light from the light source is homogeneous with reduced chromatic aberration.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 1, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Jianfa Huang
  • Patent number: 9116274
    Abstract: A lighting assembly includes a light engine and a light guide. The light engine edge lights the light guide and includes a control assembly that controls light output according to one or more parameters to produce light output from the lighting assembly with a desired characteristic. Lighting assemblies are combined to form a modular lighting assembly.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: August 25, 2015
    Assignee: Rambus Delaware LLC
    Inventors: Jeffrey R Parker, Timothy A McCollum, Matthew R Wancata, Fumitomo Hide, Alexey Titov, Ian Hardcastle
  • Publication number: 20150146452
    Abstract: A quantum rod luminescent display device includes a first substrate having a plurality of pixel regions; a plurality of first electrodes alternately arranged with a plurality of second electrodes in each of the plurality of pixel regions; a plurality of quantum rod compound layers over the first electrodes and the second electrodes, respectively in each of the plurality of pixel regions, each of the quantum rod compound layers including a quantum rod having a core, a shell surrounding the core, and an electron acceptor; a second substrate facing the first substrate; and a backlight unit at an outer surface of the first substrate. The electron acceptor is attached to or adjacent to the quantum rod.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Kyu-Nam KIM, Jin-Wuk KIM, Byung-Geol KIM, Sung-Woo KIM, Kyung-Kook JANG, Hee-Yeol KIM, Sung-Il WOO
  • Publication number: 20150146110
    Abstract: A backlight unit 24 includes a light guide plate 20, a heat dissipation member 36, a LED board 30, and LEDs 27 mounted on the LED board 30. The light guide plate 20 includes a light exit surface 20b on a front surface thereof, an opposite surface 10c on a rear surface thereof, a groove 20d in the opposite surface 20c, a light entrance surface 20d1 on one side surface in the groove 20d, and an opposite side surface 20d3 on another side surface in the groove 20d. The heat dissipation member 36 includes a portion in contact with the opposite side surface 20d3 and a portion on a side of one edge surface 20a of the light guide plate 20 with the one edge surface being opposite to the opposite side surface 20d3, the heat dissipation member 36 holding a part of the light guide plate 20 between the portions thereof. The light source board 30 is arranged on a surface that is opposite to a surface of the portion of the heat dissipation member 36 that is in contact with the opposite side surface 20d3.
    Type: Application
    Filed: July 12, 2013
    Publication date: May 28, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Toshikazu Matsukawa
  • Publication number: 20150146453
    Abstract: A planar light source device includes a housing having an opening, point light sources arranged on at least one side surface in the housing, a light guide plate arranged in the housing and having a light-emitting surface facing the opening and a counter-emitting surface being opposite to the light-emitting surface, a reflecting sheet arranged on the counter-emitting surface side of the light guide plate in the housing, and a reflecting region arranged on at least a part of a peripheral portion of the point light sources on the side surface on which the point light sources are arranged in the housing and absorbing light having at least some wavelength.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 28, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Seiji SAKAI
  • Publication number: 20150138833
    Abstract: The present disclosure relates to a backlight module and a liquid crystal display device including the backlight module. The backlight module includes a light guide plate and a planar reflecting sheet arranged below the light guide plate, wherein a plurality of lattice points are provided on the upper surface of the light guide plate so that the upper surface forms a light-emitting surface, and a plurality of cylindrical projections in contact with the planar reflecting sheet are formed on the lower surface of the light guide plate. With this backlight module, the probability of the lattice points being scratched can be significantly reduced, and the quality of the final product can be improved.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 21, 2015
    Inventor: Hu He
  • Publication number: 20150138834
    Abstract: A light source device includes: a light source; a package that houses the light source and has an opening section configured to emit light from the light source; a light reduction unit provided on the opening section and configured to reduce the light emitted from the opening section; and a light guide plate having: an incidence surface configured such that the light reduced by the light reduction unit is incident on the incidence surface; a light guide section configured to guide the light which is incident on the incidence surface; and an emission surface configured to emit the light guided by the light guide section.
    Type: Application
    Filed: October 22, 2014
    Publication date: May 21, 2015
    Applicant: Nikon Corporation
    Inventors: Takeshi YAGI, Motoo Koyama
  • Publication number: 20150138835
    Abstract: Embodiments of the invention provide a light guide plate comprising a light guide layer and a reflective layer; a lower surface of the light guide being a reflective surface; an upper surface of the light guide layer being a stepped surface and comprising an upper step surface, a lower step surface and an inclined surface connecting the upper step surface and the lower step surface; wherein the lower step surface is a light exiting surface and the reflective surface is coated on the inclined surface. Embodiments of the invention further provide a method for manufacturing the light guide plate, a backlight module provided with such a light guide plate, and a display device provided with such a backlight module.
    Type: Application
    Filed: December 16, 2013
    Publication date: May 21, 2015
    Inventors: Tae Sung Kang, Young Man Kwon
  • Publication number: 20150138447
    Abstract: A liquid crystal display device 10 includes LEDs 17, a light guide plate 16, a mating portion 33, a positioning portion 34, a heat dissipation member 19 on which the LEDs 17 are mounted, and a restriction portion 35. The light guide plate 16 includes a peripheral surface facing the LEDs 17 and configured as a light entrance surface 16b through which light from the LEDs 17 enters and a plate surface configured as a light exit surface 16a through which light exits. The mating portion 33 protrudes from a portion of a peripheral surface 16e of the light guide plate 16 adjacent to the light entrance surface 16b or is a recess formed in the peripheral surface 16e adjacent to the light entrance surface 16b. The positioning portion 34 is fitted with the mating portion 33 as a protrusion and recess fitting such that the light guide plate 16 is positioned with respect to an arrangement direction of the LEDs 17 and the light guide plate 16.
    Type: Application
    Filed: June 27, 2013
    Publication date: May 21, 2015
    Inventor: Hirokazu Mouri
  • Publication number: 20150131323
    Abstract: A method for manufacturing a light guide apparatus includes the following steps. A first mold and a second mold are provided. The first mold and the second mold respectively include a first molding surface and a second molding surface facing each other. A protrusion is disposed at the first or second molding surfaces. Sheet materials are provided. Each sheet material includes an opening corresponding to the protrusion, a first surface and a circuit layer disposed on the first surface. One of the sheet materials is disposed on the first mold with first surface facing the first mold. The first mold and the second mold are closed. An optical plastic material is injected into the space between the first and second molding surfaces to form a light guide plate having a via corresponding to the protrusion for embedding a light source. The sheet material is laminated on the light guide plate.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 14, 2015
    Inventors: Chung-Lin Tsai, Ching-Ling Wang
  • Publication number: 20150131319
    Abstract: A backlight assembly includes a light source unit configured to generate light, a lower receiving container having a bottom portion and a side wall and being configured to receive the light source unit, the lower receiving container shaped to cover a lower surface of the light source unit and a mold frame formed directly on the lower receiving container and having a cut portion, the cut portion having a first end portion and a second end portion, the first end portion and the second end portion spaced apart from each other and facing each other with a gap therebetween.
    Type: Application
    Filed: August 4, 2014
    Publication date: May 14, 2015
    Inventors: Sang-Gil KWAK, Man-Soo KIM, Joon-Ik LEE
  • Publication number: 20150131307
    Abstract: A backlight module is provided and includes a back plate, a light guide plate, a light source, a frame, at least one first positioning member and at least one second positioning member. The back plate includes at least one first limiting hole. The light guide plate is disposed on the back plate. The light source is disposed on the back plate and located at one side of the light guide plate. The frame is disposed on the back plate and includes at least one second limiting hole. The first positioning member is inserted into the first limiting hole and the second limiting hole along a first direction and includes a positioning portion. The second positioning member is inserted into the frame along a second direction and fixed in the positioning portion. The first direction is different from the second direction.
    Type: Application
    Filed: March 4, 2014
    Publication date: May 14, 2015
    Applicant: Radiant Opto-Electronics Corporation
    Inventor: Tsai-Cheng HUANG
  • Publication number: 20150131318
    Abstract: A backlight module and a display device are provided. The backlight module includes a light guide, a bottom frame, and a first light bar. The light guide has a first light incident surface. The bottom frame has a clip portion, a first hole, and a first tongue piece, wherein the light guide is disposed in the bottom frame and clipped by the clip portion. A driver board is locked to the first tongue piece, and the first tongue piece is folded from the first hole. The first light bar is disposed between the first light incident surface of the light guide and the bottom frame, and the first light bar has a first connector. The first connector passes through the first hole, so that the first connector is outside the bottom frame.
    Type: Application
    Filed: April 30, 2014
    Publication date: May 14, 2015
    Applicant: Au Optronics Corporation
    Inventor: Keng-Yi Lee
  • Publication number: 20150130626
    Abstract: A sensing device comprises a sensor housing defined in part by two or more outer planes, a light guide including one or more legs, where the light guide defined in part by a vertical plane, and the light guide is an indicator for the sensing device. The light guide extends along a first portion and a second portion, where the first portion is disposed along at a first outer plane of the housing, the second portion is disposed along a second outer plane of the housing. The sensing device further includes a light source disposed adjacent to the light guide, and the light guide includes at least one slot therein. The slot of the light guide has an angle of about 18-24 degrees relative to a longitudinal axis of the first portion. The light source is directed toward the slot, and a surface within the slot transmits light in multiple directions.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Inventors: Roberto Santos, Frank L. Leard
  • Publication number: 20150124196
    Abstract: The backlight unit whose luminance life can be extended without increasing the cost and the power consumption includes: a light source unit to which a light source is mounted; a light guide plate which converts light from the light source to a surface light beam and emits the beam; and supporting members provided between the light source unit and the light guide plate, wherein each of the supporting members is a member having a function of shortening the distance between the light source unit and the light guide plate by the changes generated over time.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 7, 2015
    Inventor: Shin-Ichirou ONO
  • Publication number: 20150124482
    Abstract: Provided are a light source device and a display device capable of preventing the user from recognizing unevenness in luminance due to reflection, by a reflection sheet, of the unevenness in luminance occurring at a cut-out part of a light guide plate.
    Type: Application
    Filed: March 12, 2013
    Publication date: May 7, 2015
    Applicant: Sakai Display Products Corporation
    Inventor: Yasumori Kuromizu
  • Publication number: 20150124177
    Abstract: A backlight device (a lighting device) 12 includes LEDs (a light source) 17, a light guide plate 16, a chassis 14, LED boards 18, and heat dissipation members 19. The light guide plate 16 includes an end surface that is opposite the LEDs 17 and configured as a light entrance surface 16b through which light from the LEDs 17 enters. One of the plate surfaces of the light guide plate 16 is configured as a light exit surface 16a through which the light exits. The chassis 14 supports another plate surface 16c of the light guide plate 16 opposite from the light exit surface 16a. Each LED board 18 includes a bottom plate 18b that extends parallel to at least the other plate surface 16c of the light guide plate 16. Each heat dissipation member 19 extends parallel to a plate surface 18b1 of the bottom plate 18b and is in surface contact with the plate surface 18b1 of the bottom plate 18b.
    Type: Application
    Filed: July 26, 2013
    Publication date: May 7, 2015
    Inventor: Kaori Ikuta
  • Publication number: 20150124483
    Abstract: A display apparatus includes a display panel configured to display an image using light, a backlight assembly including a light source unit configured to generate the light, a lower receiving container including a bottom portion covering a lower surface of the light source unit and a side wall extended from an edge of the bottom portion, and a mold frame including a transmission portion between and facing a upper surface of the light source unit and the display panel, and a supporting portion facing a side surface of the lower receiving container, and a cover member covering a side surface of the mold frame and a lower surface of the lower receiving container.
    Type: Application
    Filed: March 26, 2014
    Publication date: May 7, 2015
    Applicant: Samsung Display Co., LTD
    Inventors: Chung-Hui LEE, Seung-Won KUK, Joon-Seok AHN, Jee-Su PARK
  • Publication number: 20150124481
    Abstract: Windows, or other types of transparent materials, may be constructed to passively allow light from alternate sources to pass therethrough, while also being able to actively produce artificial light for providing illumination from one side of the window by means of an incorporated optical waveguide that accepts light from an edge of the window and disperses it from only one side of the window.
    Type: Application
    Filed: May 11, 2012
    Publication date: May 7, 2015
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Gary Lynn Duerksen, Seth Adrian Miller
  • Publication number: 20150117055
    Abstract: A display apparatus is provided. A display unit has a display region. A protecting cover has a patterned region, wherein the patterned region does not overlap the display region. A light guide plate is disposed between the display unit and the protecting cover and has a first light scattering region and a second light scattering region. The first light scattering region at least partially overlaps the display region, and the second light scattering region at least partially overlaps the patterned region. A light emitting unit emits a light beam to the light guide plate. After the light beam enters the light guide plate, a part of the light beam is scattered to the display region by the first light scattering region and another part of the light beam is scattered to the patterned region by the second light scattering region.
    Type: Application
    Filed: April 9, 2014
    Publication date: April 30, 2015
    Applicant: E Ink Holdings Inc.
    Inventors: I-Jeng Chen, Sheng-Chieh Tai, Tsai-Wei Shei, Yao-Tsung Shih, Yu-Nan Pao
  • Publication number: 20150117056
    Abstract: An aroma machine that uses a replaceable aroma container is provided. The aroma machine includes a housing, a top cap, and a light-guiding accommodation unit coupled between the housing and the top cap. The light-guiding accommodation unit serves as a basic limiting component for the production of the aroma machine, for the components to be assembled quickly and correctly. The replaceable aroma container is placed in light-guiding accommodation unit, and is heated to release fragrance. The aroma container is disposable, or recycled. It is easy to use and replace the aroma. The light-guiding accommodation unit is made of a transparent material. Light emitted by a light emitting device in the aroma machine is guided to the light-guiding accommodation unit, and forms light decoration on an outside of the aroma machine.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 30, 2015
    Inventor: Ming Jen Hsiao