With Integral Optical Element For Guiding Or Distributing Light From The Light Source Patents (Class 349/62)
  • Patent number: 10845524
    Abstract: An object is to promote a reduction in thickness of a light guide plate and suppress brightness non-uniformity of the light guide plate. A light guide plate, including: a light exit surface from which light is emitted; an opposite surface on an opposite side of the light exit surface; a depressed portion provided on the opposite surface; and a plurality of scattering portions which are provided on the light exit surface, the opposite surface, and a bottom surface of the depressed portion and which refract and scatter light, wherein the depressed portion has a tapered surface which spreads from the bottom surface of the depressed portion toward an opening of the depressed portion.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: November 24, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Shotaro Watanabe, Kazuhide Hirota, Naoki Ishimi
  • Patent number: 10847098
    Abstract: An information handling system may comprise a liquid crystal display having a plurality of pixels, an electrochromic material layer having a plurality of electrodes disposed between an interior surface of a chassis and a transistor-array layer, and a high reflection layer reflecting light emitted from an LED disposed between the electrochromic material layer and the transistor-array layer away from the interior surface of the chassis. A processor may execute code instructions of an electrochromic material regional backlight unit dimming control system to identify a low-intensity pixel region including a subset of the plurality of pixels associated within high dynamic ratio image data with a low intensity value, identify an electrode of the electrochromic material layer associated with the low-intensity pixel region; and pass a current through the electrode such that a portion of the electrochromic material becomes opaque to the light reflected from the high reflection layer.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 24, 2020
    Assignee: Dell Products, LP
    Inventors: Ching-Feng Chen, Meng-Feng Hung, Yi Fan Wang, Tsung-Chin Cheng, Pavel Sergei Olchovik
  • Patent number: 10838134
    Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a plurality of light beams having different principal angular directions corresponding to different view directions of the multiview display. The display includes multiview pixels that include sub-pixels. A size of the multibeam element is comparable to a size of a sub-pixel in a multiview pixel of the multiview display.
    Type: Grant
    Filed: June 16, 2018
    Date of Patent: November 17, 2020
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Ming Ma, Xuejian Li
  • Patent number: 10840302
    Abstract: An image sensor includes a first light sensor layer including light sensing cells configured to sense first light of an incident light and generate electrical signals based on the sensed first light, and a color filter array layer disposed on the first light sensor layer, and including color filters respectively facing the light sensing cells. The image sensor further includes a second light sensor layer disposed on the color filter array layer, and configured to sense second light of the incident light and generate an electrical signal based on the sensed second light. Each of the color filters includes a nanostructure including a first material having a first refractive index, and a second material having a second refractive index greater than the first refractive index, the first material and the second material being alternately disposed with a period.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: November 17, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Kwanghee Lee, Yongwan Jin, Yongsung Kim, Changgyun Shin, Jeongyub Lee, Amir Arbabi, Andrei Faraon, Yu Horie
  • Patent number: 10831086
    Abstract: The light source apparatus includes a light source and a wavelength conversion element containing quantum rods capable of converting a first linearly polarized light from the light source into a second linearly polarized light whose wavelength is different from that of the first linearly polarized light3. The apparatus further includes a changer configured to change a polarization direction of the first linearly polarized light entering the quantum rods.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: November 10, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Minoru Ohkoba
  • Patent number: 10831062
    Abstract: To provide a luminous flux control member capable of mitigating effects of leg parts on a luminance distribution in the luminous flux control member. [Solution] Provided is a luminous flux control member that controls distribution of light emitted from a light source. The bottom surface positioned on the light source side of the luminous flux control member has at least an inclined section inclined upward from the central axis side toward the periphery side of the luminous flux control member. Leg parts protruding toward the light source side are arranged on the inclined section. At least a part of the back side of the side surface of each leg part relative to the central axis includes a plane or a curved surface protruding toward the central axis side or toward the periphery side and having a radius of curvature equal to or greater than a radius of curvature of a central circumscribed circle that is centered around the central axis and that is tangent to the back side of the side surface of the leg part.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: November 10, 2020
    Assignee: Enplas Corporation
    Inventor: Haruto Nagami
  • Patent number: 10824010
    Abstract: The present disclosure provides a backlight module and a display apparatus. The backlight module of the present disclosure may connect at least one of the diffuser film, the lower anti-reflection film and the upper anti-reflection film with the middle frame so as to avoid the problems of drop-off or movement of the at least one of the diffuser film, the lower anti-reflection film and the upper anti-reflection film. Thus, the solidity and the stability of the at least one of the diffuser film, the lower anti-reflection film and the upper anti-reflection film may be improved. The problems of uneven light distribution due to drop-off and movement of the at least one of the diffuser film, the lower anti-reflection film and the upper anti-reflection film may be avoided.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: November 3, 2020
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Quan Li
  • Patent number: 10816718
    Abstract: A display device including a back plate, a light emitting module, a light guide plate and a fixing member is provided. The back plate has an inner surface and an outer surface opposite to the inner surface. The light emitting module is disposed on a side of the inner surface of the back plate. The light guide plate is disposed opposite to the inner surface of the back plate. The fixing member includes a portion, which leans on the outer surface of the back plate.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: October 27, 2020
    Assignee: Qisda Corporation
    Inventor: Hsiao-Yun Chen
  • Patent number: 10811569
    Abstract: An inorganic light-emitting diode display panel and manufacturing method thereof and a display device are provided. The inorganic light-emitting diode display panel includes: a base substrate; a microcavity structure and an inorganic light-emitting diode which are disposed on the base substrate. The microcavity structure includes a reflective layer, a semi-reflective layer and a dielectric layer located between the reflective layer and the semi-reflective layer; the inorganic light-emitting diode includes a light-emitting layer, and the light-emitting layer is located in the dielectric layer; and a distance between the reflective layer and the semi-reflective layer is in a same order of magnitude as a wavelength of light emitted by the inorganic light-emitting diode.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: October 20, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Wang, Can Zhang, Han Yue, Ming Yang, Ning Cong, Minghua Xuan, Xiaochuan Chen
  • Patent number: 10809568
    Abstract: A light convergence structure includes light convergence portions. Each light convergence portion includes a frustum structure and a plano-convex structure. The frustum structure includes a first end surface and an opposite second end surface. An area of the first end surface is less than an area of the second end surface. The plano-convex structure is on the second end surface of the frustum structure. The plano-convex structure includes a flat surface and an opposite convex spherical surface. The flat surface is in contact with the second end surface. An area of the flat surface is equal to the area of the second end surface. The first end surfaces of the light convergence portions are coplanar and together define a light incident surface of the light convergence structure.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: October 20, 2020
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hai Tang, Jingbin Jie, Lu Gao, Jianwei Qin, Liang Gao, Bo Han
  • Patent number: 10809507
    Abstract: A light emitting module including a circuit board, light emitting elements disposed on the circuit board, each light emitting element including light emitting diode chips and a wavelength conversion layer coated on the light emitting diode chips, and a lens disposed on the light emitting elements and configured to diffuse light emitted from the light emitting elements, in which the lens includes a concave part having a light incident surface and an upper surface through which light exits out from the lens, the upper surface includes a convex portion including sections, at least two of the sections having different curvatures from each other, and the at least two of the sections each has a thickness equal to or greater than 1 ?m, and less than the width of the light emitting element.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: October 20, 2020
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Eun Ju Kim, Ki Bum Nam
  • Patent number: 10802306
    Abstract: A viewing angle switchable device including an absorptive polarizer, a reflective polarizer and an electrically controlled viewing angle switching element is provided. A transmission axis of the reflective polarizer is parallel to a transmission axis of the absorptive polarizer. The electrically controlled viewing angle switching element is disposed between the absorptive polarizer and the reflective polarizer and includes two transparent substrates, two transparent conductive layers and a liquid crystal layer including a plurality of liquid crystal molecules. When there is a potential difference between the two transparent conductive layers, an orthogonal projection of an optical axis of each of the plurality of liquid crystal molecules on the absorptive polarizer is parallel to or perpendicular to the transmission axis of the absorptive polarizer and the transmission axis of the reflective polarizer. A viewing angle switchable display module including the viewing angle switchable device is also provided.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 13, 2020
    Assignee: Coretronic Corporation
    Inventors: Ping-Yeng Chen, Chong-Yang Fang, Yang-Ching Lin, Jen-Wei Yu
  • Patent number: 10775542
    Abstract: A lighting device includes light sources and a light guide plate having a first side face and a second side face opposite to the first side face. The light guide plate includes a first recess portion in a part of the first side face and a second recess portion in a part of the second side face. The first recess portion and the second recess portion are disposed in a point symmetrical manner with respect to a central position of the light guide plate as a symmetric point. The light sources are arranged in such a manner as to face a portion of the first side face except for the first recess portion and a portion of the second side face except for the second recess portion, and are arranged on a first side face side and on a second side face side in an offset manner.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: September 15, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Ichiroh Fukunishi, Hayato Nakamura
  • Patent number: 10768357
    Abstract: A polarization-mixing light guide includes a plate light guide and a polarization retarder within the plate light guide. The light guide is to guide a beam of light at a non-zero propagation angle. The light beam includes a first polarization component and a second polarization component. The polarization retarder is to redistribute the first and second polarization components of the guided light beam into predetermined combinations of the polarization components. The light guide is to preferentially scatter out a portion of the guided light beam having the first polarization component. A three-dimensional (3-D) electronic display includes an array of multibeam diffraction gratings at a surface of the plate light guide to preferentially couple out the first polarization component of the guided light beam as a plurality of light beams having different principal angular directions.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: September 8, 2020
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 10753546
    Abstract: A lighting module disclosed in an embodiment comprises: a substrate; a light-emitting element arranged on the substrate; and a resin member arranged on the substrate and the light-emitting element. The resin member comprises a plurality of side surfaces and an exit surface on the upper portion thereof. The plurality of side surfaces of the resin member comprise a first side surface adjacent to the light emitting device, a second side surface facing the first side surface, and third and fourth side surfaces arranged between the first and second side surfaces so as to face each other. The exit surface of the resin member comprises a light extraction structure having a large length in a first direction and having a concavo-convex pattern in a second direction that is perpendicular to the first direction. The light emitting device comprises an exit area corresponding to a part of the second side surface in the first direction.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: August 25, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Seong Jin Hwang, Se Eun Kang, Jin Hee Kim, Gyeong Il Jin
  • Patent number: 10754217
    Abstract: A display structure and an electronic device having the same are provided. The display structure includes a display screen and a light adjusting component located at a light emitting side of the display screen. An operating state of the light adjusting component comprises a light transmitting state and a polarization state, and the light adjusting component comprises a first region and a second region which are independently controllable. The display screen comprises a plurality of independently controllable pixels. Further, when the first region of the light adjusting component is in the light transmitting state, the pixels that are in the display screen and correspond to the first region are disabled to allow light emitted from the first region to penetrate through the display screen.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: August 25, 2020
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventors: Zhihui Zeng, Anyu Liu, Lei Tang, Zhongsheng Jiang, Shaoxing Hu, Chengfang Sun
  • Patent number: 10754084
    Abstract: A light source device includes a light source configured to emit illumination light and a flat plate shaped transparent lightguide element. The lightguide element includes: an incident surface facing the light source; a reflecting surface formed in one of side surfaces of the lightguide element to reflect the illumination light incident into the lightguide element from the incident surface; and an exit surface formed in a side surface of the lightguide element on an opposite side to the reflecting surface, the illumination light reflected by the reflecting surface exiting from the exit surface. The reflecting surface is formed into a curved surface, the curved surface collimating the illumination light reflected by the reflecting surface in a surface including a lengthwise direction of the reflecting surface, and the reflecting surface is formed into a concave mirror in a surface including a short direction of the reflecting surface.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: August 25, 2020
    Assignee: OMRON Corporation
    Inventors: Masayuki Shinohara, Yuto Mori, Norikazu Kitamura, Yasuhiro Tanoue
  • Patent number: 10732341
    Abstract: There is provided an optical body including: a base material; a second optical layer, formed on at least one surface of the base material, that reduces a reflection of extraneous light; and a first optical layer, laminated on top of a part of the second optical layer, that extracts internally propagating light incident inside the base material from a side face of the base material to an outside of the base material. On a surface of the first optical layer, a first concave-convex structure that reflects the internally propagating light is formed.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 4, 2020
    Assignee: DEXERIALS CORPORATION
    Inventors: Koji Sasaki, Hiroshi Sugata, Naoki Hanashima
  • Patent number: 10725238
    Abstract: A display assembly includes at least two display devices and two image compensating elements at a junction of every adjacent two display devices. Each display device includes a front surface that is viewed by user. Each front surface defines a display area and a border area. Each image compensating element is on the front surface. Each image compensating element includes a light-incident surface on the display area, a light-emitting surface coupling to the light-incident surface, and a connecting surface coupling between the light-incident surface and the light-emitting surface. Each image compensating element includes a plurality of light guiding channels. Light guiding paths of the light guiding channels extend along a direction from the light-incident surface toward the light-emitting surface.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: July 28, 2020
    Assignee: SEAMLESS TECHNOLOGY INC.
    Inventors: I-Wei Wu, Chih-Lung Hung, Hsiao-Min Yin
  • Patent number: 10712609
    Abstract: A liquid crystal display includes: a liquid crystal module; a backlight member arranged under the liquid crystal module and having a first through hole; a light guide member arranged in the first through hole and having a second through hole, the light guide member including a light incident surface and a first light emergent surface on a wall surrounding the second through hole, the first light emergent surface being obliquely arranged towards the liquid crystal module; and a light emission member arranged opposing the light incident surface and configured to emit light into the light guide member therethrough. A part of the light entering the light guide member is projected on a portion of the liquid crystal module corresponding to a center area of the first through hole after being emitted from the first light emergent surface.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: July 14, 2020
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Chiafu Yen, Jianglin Gu, Yajun Pan
  • Patent number: 10705289
    Abstract: A lighting device includes a light-guiding plate and a light source. The light-guiding plate includes a light entrance surface, an entrance opposite surface located opposite to the light entrance surface, a light exit surface, and an exit opposite surface located opposite to the light exit surface. The light-guiding plate has a notch formed by notching a part thereof. A region between the notch and the entrance opposite surface is a shielded region where the notch blocks light guided through inside the light-guiding plate from the light entrance surface toward the entrance opposite surface, and a condensing member having a reflecting surface that reflects, in a condensing manner toward the shielded region, light having leaked out through the exit opposite surface is provided opposite the exit opposite surface of the light-guiding plate.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: July 7, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hidetaka Terazawa
  • Patent number: 10705262
    Abstract: A lens includes immobilized liquid crystals. The liquid crystals in a first region are aligned in a first orientation. The liquid crystals in a second region, located between the first region and a third region and adjacent to the first region and the third region, are aligned in a second orientation that is distinct from the first orientation. The liquid crystals in the third region, located between the second region and a fourth region and adjacent to the second region and the fourth region, are aligned in the first orientation. The liquid crystals in the fourth region, located adjacent to the third region, are aligned in the second orientation. A device with the lens and an array of light emitting devices is also disclosed.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 7, 2020
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Jianru Shi, Mary Lou Jepsen
  • Patent number: 10690976
    Abstract: A display device includes a display panel, an optical member, a fixing member, and a control substrate. The display panel is capable of displaying an image. The optical member imparts predetermined optical effects to light emitted toward the display panel. The fixing member fixes the optical member to another member. The control substrate controls display of the image. The control substrate includes a ground section including a conductor pattern. The fixing member has electrical conductivity and electrically connects the optical member directly or indirectly to the ground section.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: June 23, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Shuichiro Asatani
  • Patent number: 10690832
    Abstract: The present disclosure relates to the field of display technology, and provides a liquid crystal display panel, a display device, and a driving method for the same. The liquid crystal display panel includes an array of pixel units, wherein each pixel unit includes a plurality of sub-pixel units. The liquid crystal display panel further includes: a first substrate, a second substrate, a liquid crystal layer, a pixel electrode layer, a common electrode layer, and a waveguide grating which are stacked over each other.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 23, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongxiao Li, Xiaochuan Chen, Wenqing Zhao, Wei Wang
  • Patent number: 10690964
    Abstract: A display device is provided, such as for motor vehicles. The device comprises a display element that is backlit via a light source. A lightguide conducts light from the source. A pre-assembled back-lighting module serves to illuminate the display element, and facilitates manufacture and assembly of the device.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: June 23, 2020
    Assignee: Visteon Global Technologies, Inc.
    Inventor: Christophe Cuvillier
  • Patent number: 10684511
    Abstract: A transparent display panel and display apparatus are disclosed. The display apparatus includes: a first substrate; an optical waveguide member over the first substrate; a liquid crystal layer between the first substrate and the optical waveguide member, the transparent optical waveguide member having a light exit face facing towards the liquid crystal layer; a light source at a side surface of the optical waveguide member; light exit members distributed in an array on the light exit face of the optical waveguide member; and a photoluminescent layer on a side of the light exit members facing towards a light exit face of the display apparatus. The photoluminescent layer includes photoluminescent parts. A light entering the optical waveguide member exits through the light exit members, then enters the liquid crystal layer, and is controlled by the liquid crystal layer to irradiate the photoluminescent parts for performing a luminous display.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: June 16, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wei Wei
  • Patent number: 10677981
    Abstract: A light source (25) for emitting collimated light (29) in particular for a large area luminaire (21) comprises a light guide unit (43) comprising a plurality of light guide strips (91) configured for guiding light received at the at least one lateral coupling face (47), for example, by total internal reflection. The light guide strips comprise a plurality of localized light source regions (57) at a main front face (55A) for having light pass there through, wherein the light source regions (57) are provided along the light guide strip (91) within a non-source region (59). The light source (25) further comprising a plurality of light emitting units (41) for emitting light into the light guide strips (91) through respective portions of the at least one coupling face (47), and a collimation unit (45) extending along the main front face (55A) and comprising a plurality of collimating elements.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: June 9, 2020
    Assignee: CoeLux S.r.l.
    Inventors: Paolo Di Trapani, Davide Magatti, Antonio Lotti, Michael Ragan Krames
  • Patent number: 10677423
    Abstract: A light emitting device includes a circuit board, light-emitting diodes, an optically clear adhesive layer and a transparent film. The light-emitting diodes are disposed on a surface of the circuit board. The optically clear adhesive layer is disposed on the surface of the circuit board and covers the light-emitting diodes. The transparent film is disposed over a side of the optically clear adhesive layer distant from the circuit board. A hardness of the transparent film is greater than a hardness of the optically clear adhesive layer.
    Type: Grant
    Filed: December 9, 2018
    Date of Patent: June 9, 2020
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Yin-Cyuan Wu, Yu-Chang Wu, Yun-Yi Tien
  • Patent number: 10677410
    Abstract: A light beam adjusting device performs a process on at least two kinds of light beams in combination. Through this light beam adjusting device, a part of a first light beam is emitted from a first light exit face and another part thereof may be emitted from a second light exit face. Similarly, a part of the second light beam is also emitted from the first light exit face, and another part thereof may be emitted from the second light exit face. In this way, regardless of whether the first light beam is turned on or the second light beam is turned on, the light adjusted by the light beam adjusting device can be simultaneously emitted from the first light exit face and the second light exit face.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: June 9, 2020
    Assignee: Valeo Lighting Hubei Technical Center Co. Ltd.
    Inventors: Sihua Wu, Bing Zhang
  • Patent number: 10677973
    Abstract: A polarizer protective sheet includes a base material layer and a light diffusing layer formed on a surface of the base material layer. A plurality of protrusions are formed on an opposite surface of the light diffusing layer from the base material layer, and the protrusions have a substantially arc-shaped section. The average radius of the protrusions is 10 ?m or more and 100 ?m or less, and the average height of the protrusions is 10 ?m or less.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: June 9, 2020
    Assignee: KEIWA INC.
    Inventor: Motohiko Okabe
  • Patent number: 10670904
    Abstract: The present invention relates to a technology of liquid crystal display, and more particularly, to publish a display module, which comprises a middle frame; and a panel cartridge is recessed in the middle frame for accommodating a panel module; a component cartridge is arranged relatively under the panel cartridge and is recessed in the middle frame for accommodating a backlight module; the display module further comprises a light shielding component which is arranged between the panel module and the middle frame for preventing light entering the panel module from the side of the panel module. The invention can prevent the light from entering the panel module from the side wall of the panel module by introducing a light shielding component, the problem of white spot in view area can be solved and the visual effect of the display can be improved.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: June 2, 2020
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Wei Zhang
  • Patent number: 10670798
    Abstract: A liquid crystal display device includes a liquid crystal panel, a backlight unit disposed on a rear surface of the liquid crystal panel to irradiate light, a guide panel to accommodate the liquid crystal panel and the backlight unit, a light blocking tape provided between the liquid crystal panel and the backlight unit to fix the liquid crystal panel and the backlight unit to the guide panel and a step compensating tape to compensate for a step which is a distance between the light blocking tape and the liquid crystal panel, and the step compensating tape has an adhesive force only on one surface thereof that is attached to the light blocking tape.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 2, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yeounjei Jung, Hakyeol Kwon
  • Patent number: 10661533
    Abstract: A laminated glass article includes at least a first layer, a second layer in direct contact with the first layer, and an optical property difference between the first layer and the second layer. The optical property difference includes at least one of: (a) a transmission profile difference between a transmission profile of the first and second layers in a wavelength range from 200 nm to 2500 nm; or (b) a light-polarizing difference, whereby the second layer is light-polarizing with respect to electromagnetic irradiation in the wavelength range from 200 nm to 2500 nm; or (c) a refractive index difference between refractive indices of the first and second layers of at least 0.005, wherein one layer includes a base glass composition and the other layer includes the base glass composition and a dopant in an amount sufficient to cause the refractive index difference.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: May 26, 2020
    Assignee: Corning Incorporated
    Inventors: Olus Naili Boratav, Ming-Jun Li, Piotr Janusz Wesolowski
  • Patent number: 10663127
    Abstract: A thin profile surface mount LED lighting apparatus includes a housing, an LED board including multiple LEDs, and a lens. The lens has a back side facing the LED board and a front side that provides a downward facing surface when the LED lighting apparatus is installed in an opening of a ceiling. The lens is disposed with respect to the LED board such that the LEDs illuminate the back side of the lens. A first spacing of the LEDs causes resulting light from the downward facing surface of the lens to be substantially uniform during operation of the apparatus. In one example, a thin front edge of a sidewall of the housing, forming a perimeter around the lens, is flush with the lens and is appreciably thin (e.g., a thickness of less than three millimeters), and a depth of the sidewall housing is less than one inch.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: May 26, 2020
    Assignee: DMF, Inc.
    Inventors: Michael D. Danesh, Vincent Williams, Mark Jongewaard
  • Patent number: 10663630
    Abstract: Light control films are provided that confine light transmitted therethrough to be within a 360° view region and block light outside of this view region. The light control films can provide security in all directions including right-and-left and up-and-down of the films, without compromising light transmittance compared to one-dimensional light control films. The light control films include an array of light transmissive, tapered posts and absorptive regions disposed between the posts.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: May 26, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jeremy K. Larsen, Kurt J. Halverson, Jeffrey L. Solomon
  • Patent number: 10663790
    Abstract: A display panel including a base substrate which includes a display area and a non-display area, a polarizing member disposed on a surface of the base substrate and including a plurality of grid patterns overlapping the display area and a reflective pattern overlapping the non-display area, and a pixel array layer which overlaps the polarizing member and is insulated from the polarizing member. A first height from the surface of the base substrate to an upper surface of the reflective pattern is different from a second height from the surface of the base substrate to upper surfaces of the grid patterns.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 26, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Won Park, Dae Young Lee, Dong Eon Lee, Dae Hwan Jang, Gug Rae Jo
  • Patent number: 10663638
    Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable backlight unit and an image display apparatus using the 2D/3D switchable backlight unit are provided. The 2D/3D switchable backlight unit includes: a light source unit; a first light guide plate, within which light from the light source unit is totally internally reflected; and a plurality of refraction patterns, each having a trapezoidal form. The light source unit may include a first light source and a second light source.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: May 26, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hongseok Lee, Geeyoung Sung, Joonyong Park, Hoon Song, Bongsu Shin, Yoonsun Choi
  • Patent number: 10663657
    Abstract: Disclosed embodiments include an energy waveguide system having an array of waveguides and an energy inhibiting element configured to substantially fill a waveguide element aperture and selectively propagate energy along some energy propagation paths through the array of waveguides. In an embodiment, such an energy waveguide system may define energy propagation paths through the array of waveguides in accordance to a 4D plenoptic system. In an embodiment, energy propagating through the energy waveguide system may comprise energy propagation for stimulation of any sensory receptor response including visual, auditory, somatosensory systems, and the waveguides may be incorporated into a holographic display or an aggregated bidirectional seamless energy surface capable of both receiving and emitting two dimensional, light field or holographic energy through waveguiding or other 4D plenoptic functions prescribing energy convergence within a viewing volume.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 26, 2020
    Assignee: LIGHT FIELD LAB, INC.
    Inventors: Jonathan Sean Karafin, Brendan Elwood Bevensee
  • Patent number: 10656415
    Abstract: Head-up display includes display device, projection optical system, a polarization member, and a first polarizer. Display device displays an image. Projection optical system includes refraction lens. Projection optical system projects the image displayed on display device to an observer. The polarization member is disposed between projection optical system and a reflection member that reflects light from projection optical system. Transmittance of the polarization member depends on a polarization direction of transmitted light. The first polarizer is disposed behind refraction lens on an optical path starting from display device. The first polarizer rotates a predetermined polarized component by a quarter of wavelength.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: May 19, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Kuzuhara, Hiroaki Okayama, Yosuke Asai
  • Patent number: 10651351
    Abstract: Solid-state lighting devices including light-emitting diodes (LEDs) and more particularly LED packages are disclosed. A light-altering material may be provided in particular configurations within an LED package to redirect light toward a primary emission direction. The light-altering material may be arranged on any of a first face, a second face, or a plurality of sidewalls of an LED chip in the LED package. In certain embodiments, a lumiphoric material may be arranged on one or more of the sidewalls. A superstrate may be arranged to mechanically support the LED chip from the first face. The light-altering material may be arranged on or dispersed within the superstrate. In certain embodiments, the primary emission direction of the LED package is substantially parallel to the second face of the LED chip in the LED package. An overall thickness or height of the LED package may be less than or equal to 0.25 mm.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: May 12, 2020
    Assignee: Cree, Inc.
    Inventor: Christopher P. Hussell
  • Patent number: 10649248
    Abstract: A display may have display layers such as liquid crystal display layers having a liquid crystal layer interposed between a color filter layer and a thin-film transistor layer or organic light-emitting diode layers having organic light-emitting diodes formed from thin-film transistor circuitry. The display layers may be configured to form an array of pixels that display images and may include a polarizer. An angle-of-view adjustment layer may overlap the display layers. The angle-of-view adjustment layer may include one or more liquid crystal layers. A first polarizer may be interposed between first and second liquid crystal layers and the second liquid crystal layer may be overlapped by a second polarizer. The first and second polarizers may have pass axes that are aligned with a pass axis of the polarizer in the display layers. One or more liquid crystal layers in the angle-of-view adjustment layer may include dichroic dye.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: May 12, 2020
    Assignee: Apple Inc.
    Inventors: Shih-Chyuan Fan Jiang, Shih-Wei Chang, Yuan Chen, Zhibing Ge, Cheng Chen
  • Patent number: 10642102
    Abstract: The present disclosure provides a light homogenizing structure, a front light source and a display device. The light homogenizing structure comprises a transparent substrate and a plurality of light homogenizing units arranged on a surface of the transparent substrate facing the display panel; wherein a surface of each of the light homogenizing units away from the transparent substrate is a reflective surface tilted relative to the transparent substrate, light rays emitted from the light-emitting unit facing a light entry surface of the light homogenizing structure are incident into the display panel after being reflected on the reflective surface, the light entry surface is other than a surface of the light homogenizing structure facing the display panel and its opposite surface, and an orthographic projection of one of the light homogenizing units on the display panel is located on a border between pixels of the display panel.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: May 5, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hongyu Zhao, Kai Diao, Jie Liu, Zongjie Bao, Han Zhang, Yang Chu, Wenjia Sun
  • Patent number: 10627561
    Abstract: A lighting system is disclosed. The lighting system comprises at least one light source comprising a light emitting diode (LED) and one or more phosphors optically coupled to the LED to convert at least a portion of original light emitted by the LED to provide a modified LED light having a first predetermined spectral output, and an optical material that is optically coupled to at least a portion of a surface of a light guide plate and optically coupled to receive at least a portion of the modified LED light and to convert at least a portion of the modified LED light to at least one predetermined wavelength to provide modified light having a second predetermined spectral output, wherein the optical material comprises one or more types of quantum confined semiconductor nanoparticle. A device including a lighting system is also disclosed.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: April 21, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seth Coe-Sullivan, John R. Linton, Daniel Cohen, John E. Ritter
  • Patent number: 10622527
    Abstract: An infrared LED comprising an insulating film formed on an element and a microlens formed on the insulating film, wherein the insulating film and the microlens are formed using radiation-sensitive resin compositions each containing a cyclic olefin polymer (A) having a protonic polar group, a radiation-sensitive compound (B), and a cross-linking agent (C), is provided.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: April 14, 2020
    Assignee: ZEON CORPORATION
    Inventor: Tsutomu Haneda
  • Patent number: 10605976
    Abstract: An edge light type backlight unit includes: a light source; a light guide plate which has an end surface, on which light emitted from the light source is incident, and propagates the light incident from the end surface; a rear-side reflective plate which is disposed on a surface side of the light guide plate; a perforated reflective plate which is disposed on a surface side of the light guide plate and has a plurality of fine holes, which penetrate from a surface on the light guide plate side to an emission-side surface facing the light guide plate-side surface and transmit light, and in which both the surface and the surface are reflection surfaces and a depolarization degree of the surface is 60% or less; and a circular polarization reflection film which is disposed on the surface side of the perforated reflective plate.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: March 31, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yukito Saito, Kotaro Yasuda
  • Patent number: 10606127
    Abstract: In a liquid crystal apparatus, a second substrate is provided with an optical compensation layer having inclined surfaces at a first substrate side. A liquid crystal layer includes liquid crystal molecules having negative dielectric anisotropy. While no voltage is applied to the liquid crystal layer, an angle between a long axis direction of the liquid crystal molecules and each of the inclined surfaces is set to an angle smaller than 90°.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: March 31, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Junichi Wakabayashi
  • Patent number: 10598987
    Abstract: A liquid crystal grating includes a liquid crystal layer arranged between a first substrate and a second substrate; a quantum dot layer including a plurality of sub-pixels distributed in an array, each of the sub-pixels includes a light-shielding region located at a central portion of the sub-pixel and a quantum dot region that is separate from the light-shielding region; an electrode structure distributed across the plurality of sub-pixels; and a light input layer defining a plurality of light input ports each arranged opposite to the light-shielding region of a respective one of the sub-pixels. The electrode structure is configured to change light transmission of the liquid crystal layer depending on control voltages applied to the electrode structure.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 24, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Haiyan Wang
  • Patent number: 10595372
    Abstract: An illumination device and method is provided herein for calibrating individual LEDs in the illumination device, so as to obtain a desired luminous flux and a desired chromaticity of the device over changes in drive current, temperature, and over time as the LEDs age. The calibration method may include subjecting the illumination device to a first ambient temperature, successively applying at least three different drive currents to a first LED to produce illumination at three or more different levels of brightness, obtaining a plurality of optical measurements from the illumination produced by the first LED at each of the at least three different drive currents, obtaining a plurality of electrical measurements from the photodetector and storing results of the obtaining steps within the illumination device to calibrate the first LED at the first ambient temperature.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 17, 2020
    Assignee: Lutron Ketra, LLC
    Inventors: Horace C. Ho, Jason E. Lewis, David J. Knapp
  • Patent number: 10585324
    Abstract: Disclosed is a transparent display device including an electrochromic element. The electrochromic element includes an electrochromic layer, a counter layer, and an electrolyte layer. An image is displayed through an oxidation-reduction reaction, and the display device is in a transparent mode when a voltage is not applied. The electrochromic layer and the counter layer may further include a core material for changing a color at a high speed.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: March 10, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyun Jin An, Jong Moo Kim, Jin Hyun Jung
  • Patent number: 10585329
    Abstract: According to one embodiment, a photodetector includes a sensor unit including at least one photosensor, a liquid crystal element including a first substrate includes a plurality of first control electrodes, a second substrate including a second control electrode, and a liquid crystal layer held between the first substrate and the second substrate, a liquid crystal controller which controls a voltage to be applied to the liquid crystal layer for forming a first lens that is opposed to the photosensor in the liquid crystal layer, and a sensor controller which controls the sensor unit.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: March 10, 2020
    Assignee: Japan Display Inc.
    Inventors: Takayuki Nakanishi, Tatsuya Yata, Takeo Koito