Plural Patents (Class 362/613)
  • Patent number: 11500245
    Abstract: The present application discloses a backlight module and a display device. The backlight module includes a plurality of first regions and a plurality of second regions arranged adjacently; the backlight module includes a substrate, including a light-transmitting region, in which the light-transmitting region is at least partially located in the second regions; a plurality of first light-emitting elements, arranged at a side of the substrate, in which the first light-emitting elements are located in the first regions, and the first light-emitting elements emit light along a direction perpendicular to a plane where the substrate is located; a light-guiding plate, arranged at a side of the substrate away from the first light-emitting elements, in which the light-guiding plate includes a plurality of light-supplementing portions located in the second regions; and at least one second light-emitting element, arranged at a side face of the light-guiding plate.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: November 15, 2022
    Assignee: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Zhiqiang Zhu, Yaozuo Ke
  • Patent number: 11500147
    Abstract: A backlight source module and a display device are provided. The backlight source module includes a back plate structure and a rubber member. The back plate structure includes a bottom plate, and a first side plate and a second side plate respectively connected with the bottom plate, and the first side plate and the second side plate oppose each other. A light-emitting portion, a light-guiding component and the rubber member are sequentially disposed on the bottom plate along a first direction pointing from the first side plate to the second side plate. The rubber member is only disposed at the second side plate.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: November 15, 2022
    Assignees: BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wenjun Li
  • Patent number: 11493681
    Abstract: A backlight unit and a display device including the backlight unit are discussed. The backlight unit can include a printed circuit, a plurality of light sources disposed on the printed circuit, and a first base film disposed on the printed circuit and including a plurality of first holes provided in an area where the plurality of light sources are disposed and a plurality of second holes spaced apart from the plurality of first holes, wherein the plurality of second holes surround the plurality of first holes. The backlight unit can further include a plurality of light source protectors disposed on the printed circuit and disposed in the plurality of first holes, a plurality of light path converters disposed on the printed circuit and including a material different from the light source protectors, and a light control film disposed on the light source protectors and the light path converters.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: November 8, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Suhun Lee
  • Patent number: 11480838
    Abstract: The purpose of the invention is to realize the display whose screen is seen as floating in the transparent medium. The present invention, for example, takes a following structure. A display device including a transparent display device being fixed in a pedestal including: the transparent display device having a display area and a first transparent medium, the first transparent medium existing between the display area and the pedestal, in which scanning lines and video signal lines are formed in the display area, scanning line lead wires and video signal lead wires are formed in the first transparent medium, and provided an area of the display area is S1, and an area of the first transparent medium is S2, S2/S1 is 0.5 or more.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: October 25, 2022
    Assignee: Japan Display Inc.
    Inventor: Youhei Iwai
  • Patent number: 11467421
    Abstract: A multi-directional backlight and a multi-user multiview display provide emitted light and associated multiview images having different mutually exclusive angular ranges and different user-specific view zones. The multi-directional backlight includes first and second multiview backlights, each of which includes multibeam elements configured to provide emitted light having directional light beams with directions corresponding to view directions of a respective multiview images. The emitted light provided by the first multiview backlight has a first angular range that is mutually exclusive of a second angular range of emitted light provided by the second multiview backlight, at respective first and second convergence distances. The multi-user multiview display includes a first multiview display configured to provide a first multiview image to a first user in a first view zone and a second multiview display configured to provide a second multiview image to a second user in a second view zone.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: October 11, 2022
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Thomas Hoekman
  • Patent number: 11460180
    Abstract: A Light Emitting Diode (LED) Luminaire retrofit kit used with Exit Signs. This kit has an integral Driver On-Board (DOB) . The integrated Circuit Chip (IC Chip) on Printed circuit Board (PCB) eliminates the need for a separate LED Driver to drive the LEDs is on Board. The PCB includes a metal oxide varistor (MOV), and an array of Light Emitting Diodes (LEDs) arranged in an optimized configuration. An integral plastic Diffuser provides a uniform Light to the exit sign. All the components are laid out in a single low profile PC Board. The system provides maximum power output consuming very low input power. The system can operate at 120 or 277 Volts 60 Hz. The specially designed diffuser is positioned over LEDs for uniform illumination over desired area eliminating the Dot Matrix Pattern produced by LEDs. The luminaire can be made to varying lengths.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: October 4, 2022
    Assignee: Radionic Industries, Inc.
    Inventors: Jeffrey Winton, Sri Sridharan
  • Patent number: 11430921
    Abstract: Apparatus, systems, methods, and articles of manufacture to generate, trap, and convert light using a micro light emitting diode (LED) or similar device are disclosed. An example apparatus includes a first mirror to reflect a first wavelength light and a second wavelength light. The example apparatus includes a micro LED on the first mirror, the micro LED to generate the first wavelength light. The example apparatus includes a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light. The example apparatus includes a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 30, 2022
    Assignee: Intel Corporation
    Inventor: Khaled Ahmed
  • Patent number: 11422407
    Abstract: A light source device comprises a diffuser plate and a light source module disposed behind the diffuser plate. The light source module includes a substrate, a plurality of light emitting diodes mounted on the substrate, and a plurality of reflective layers each provided on a front surface of the plurality of light emitting diodes. When a distance between the centers of each of the plurality of light emitting diodes is referred to as a pitch, and a distance between the diffuser plate and the substrate is referred to as an optical distance, a ratio of the pitch to the optical distance satisfies the following expression: 2.5?pitch/optical distance?4.5.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: August 23, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chunsoon Park, Sungyeol Kim, Kyehoon Lee
  • Patent number: 11415740
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a light source including a plurality of light emitting devices disposed on the substrate; a resin layer disposed on the substrate; and a first diffusion layer disposed on the resin layer, wherein the resin layer includes a first resin portion disposed on the light source, and a second resin portion adjacent to the first resin portion and disposed on the substrate. The upper surface of the first resin portion has an inclination and is spaced apart from the first diffusion layer, the second resin portion includes a material different from that of the first resin portion, and the second resin portion based on the upper surface of the substrate. The height of the upper surface may be greater than the lowermost height of the upper surface of the first resin portion.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: August 16, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Young Jae Choi
  • Patent number: 11397350
    Abstract: A backlight module is provided, which includes a circuit board, a plurality of light-emitting elements, a light guide plate, a first reflective element, and a second reflective element. The circuit board has a plurality of light-reflecting regions. The light-emitting elements are arranged on the circuit board along a first direction. The light guide plate is disposed on the circuit board. The first reflective element is disposed between the light guide plate and the circuit board. The first reflective element surrounds the light-emitting elements. The second reflective element is disposed between the light guide plate and the circuit board. The second reflective element corresponds to the light-reflecting regions. The first reflective element has a first reflectivity R1. The second reflective element has a second reflectivity R2. The first reflectivity R1 and the second reflectivity R2 satisfy the following formula: 0?|(R1?R2)|/Max(R1, R2)<20%.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: July 26, 2022
    Assignee: Innolux Corporation
    Inventors: May Pan, Fu Kuo, Maggy Hsu
  • Patent number: 11385395
    Abstract: The present application discloses a light guide plate and a display device. The light guide plate has a light emitting surface configured to guide light out, the light emitting surface is provided with first micro structures, and the first micro structures protrude from the light emitting surface; the first micro structures are gradually tightly arranged on the light emitting surface inwards from the light incident surface; widths of the first micro structures gradually reduce inwards from the light incident surface. Light passes through the first micro structures protruding from the light emitting surface, an incident angle is reduced, so that the light is not prone to generate total reflection, a penetration rate of the light on the light emitting surface of the light guide plate is improved, and a light utility rate is increased.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: July 12, 2022
    Assignee: JRD COMMUNICATION (SHENZHEN) LTD.
    Inventors: Zhuwei Qiu, Jitao Ma, Ke Lin, Yang Yu
  • Patent number: 11359791
    Abstract: A luminaire includes a housing, a downlight that includes one or more first light sources configured to emit a first light downwardly from the housing, a waveguide, and one or more second light sources. The waveguide is formed of a portion of an optical material and characterized by opposing planar faces joined by one or more edge faces about a periphery of the optical material. The waveguide forms at least a portion of an uppermost optical surface of the luminaire. The one or more second light sources are coupled with the housing and configured to emit a second light into the optical material through at least one of the one or more edge faces. The waveguide is configured to emit at least a portion of the second light upwardly from an upper one of the planar faces.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: June 14, 2022
    Assignee: ABL IP Holding LLC
    Inventors: Douglas Dewayne Grove, Benjamin Bruckner
  • Patent number: 11339941
    Abstract: Provided are a surface light emitting module for an LED light source, a vehicle lamp using the same, and a method of assembling the same, so as to solve the technical problem that the existing LED light emitting module cannot achieve uniform lighting and cannot be used for the high brightness function as a brake lamp, a turn signal lamp, or the like. The surface light emitting module for an LED light source described in the present disclosure comprises: a back plate, a light guide plate, and an optical film disposed sequentially from back to front; and specifically, an LED light source and a PCB are disposed on a side of the light guide plate, and a plurality of concave/convex microstructures are disposed at intervals on the light guide plate.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: May 24, 2022
    Assignee: HASCO VISION TECHNOLOGY CO., LTD.
    Inventor: Xiyuan Liu
  • Patent number: 11339942
    Abstract: A vehicle lamp includes a light source and a plate-shaped light guide including a first plate surface on which a plurality of reflective elements are formed and a second plate surface. The plate-shaped light guide is configured to totally reflect light from the light source by the plurality of reflective elements. The plurality of reflective elements are arranged in a state of being continuously arranged along a line extending in a direction, and are arranged in a plurality of rows on the line. The plate-shaped light guide is configured to allow the light from the light source to reach a position of the line from a first direction. Each of the reflective elements has a substantially concave curved surface shape, and as compared to reflective elements constituting a first row, reflective elements constituting a second row is formed at a deeper position from the first plate surface.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 24, 2022
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Akihito Horikawa
  • Patent number: 11327337
    Abstract: A mode-switchable backlight and mode-switchable display employ a first planar backlight to emit broad-angle emitted light during a first mode and a second planar backlight to emit directional emitted light during a second mode. The second planar backlight includes a plate light guide and an array of multibeam elements configured to scatter out guided light from the light guide during a second mode as the directional emitted light including a plurality of directional light beams having principal angular directions corresponding to view directions of a multiview image. The mode-switchable display further includes a light valve array configured to modulate the broad-angle emitted light to provide a two-dimensional image during the first mode and to modulate the directional emitted light to provide a multiview image during the second mode.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 10, 2022
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 11300271
    Abstract: The invention provides a light source module including a light guide plate and light emitting elements. The light guide plate includes a main plate body and a plurality of optical microstructures. The main plate body has a light emitting surface and a back surface opposite to each other, and a light incident surface connected therebetween. The optical microstructures are formed on the back surface. Each optical microstructure includes at least two sections connected to each other, each section having a reflective surface. The light emitting elements are disposed on the light incident surface, and light emitted by each of the light emitting elements is reflected by at least some of the reflective surfaces and transmitted to the light emitting surface. In any optical microstructure, the reflective surfaces are not parallel to each other.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: April 12, 2022
    Assignee: CHAMP VISION DISPLAY INC.
    Inventors: Hsin-Hung Lee, Chin-Ku Liu, Chung-Hao Wu, Kun-Hsien Lee
  • Patent number: 11302222
    Abstract: A display device is provided and includes a supporting substrate, a first flexible substrate, an oxide layer, a first insulating layer, a light emitting unit, and a protective layer. The first flexible substrate is disposed on the supporting substrate, and the oxide layer is disposed on the first flexible substrate. The first insulating layer is disposed on the oxide layer, and in a cross-sectional view, the first insulating layer has at least one opening. The light emitting unit is disposed on the first insulating layer, the protective layer is disposed on the light emitting unit, and at least a portion of the protective layer is disposed in the at least one opening.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: April 12, 2022
    Assignee: InnoLux Corporation
    Inventors: Hsiao-Lang Lin, Tsung-Han Tsai
  • Patent number: 11287558
    Abstract: A luminaire includes a housing, a light diffusion panel, a reflective surface, and a plurality of light sources. The light diffusion panel includes a light source aperture, an edge surface bounding the light source aperture, and an emission surface. The emission surface includes first and second emission surface sections. The second emission surface section is disposed on an opposite side of the light source aperture from the first emission surface section. The reflective surface is disposed on a side of the light diffusion panel opposite the emission surface. The light sources project light into the light diffusion panel through the edge surface. The light sources include first and second light sources. The first light source projects light into the light diffusion panel and through the first emission surface section. The second light source projects light into the light diffusion panel and through the second emission surface section.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: March 29, 2022
    Assignee: Hubbell Lighting, Inc.
    Inventors: Christopher Bailey, Ezekial Thomas Hill, III
  • Patent number: 11237433
    Abstract: Embodiments of the present disclosure provides a transparent liquid crystal display device and a display method thereof. The transparent liquid crystal display device includes a transparent liquid crystal display panel and a transparent backlight module, the transparent liquid crystal display panel includes a color filter substrate, the transparent backlight module is disposed on a non-display side of the transparent liquid crystal display panel and includes a transparent light guide plate and an ultraviolet light source, the ultraviolet light source is disposed on a side end of the transparent light guide plate, the color filter substrate includes color resin lasers with different colors, and the color resin layers with different colors are mixed with fluorescent materials which are excitable to emit corresponding colors.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: February 1, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xinli Ma, Xiaochuan Chen
  • Patent number: 11231159
    Abstract: A system can include a light emitting diode (LED) and a transparent structure disposed over the LED. The transparent structure includes a first surface that reflects light extracted from the LED and incident on the first surface. The transparent structure also includes an exit surface opposite the first surface. The exit surface includes a first area that is textured to diffuse light over a first angular range and a second area that is textured to diffuse light over a second angular range. The second angular range is wider than the first angular range.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: January 25, 2022
    Assignee: Lumileds LLC
    Inventor: Rob Jacques Paul Engelen
  • Patent number: 11167531
    Abstract: A vehicle glazing (10) wherein a light guide stack (22) is located between a portion of the inner transparency (26) and the outer transparency (28). The light guide stack includes a polycarbonate film (32) that is bonded to the transparencies by layers of PET (38, 40) that are secured to the polycarbonate film on one side by silicone (34, 36) and that are secured to the transparencies on the other side by PVB (42, 44). The terminal end of an extending tab of the polycarbonate film forms an edge that is connected to a light bar (14) that such visible light propagates through the light bar and into the polycarbonate film through the edge. Visible light propagates through etchings in the smooth surface of the polycarbonate film to form an image. An extension of one of the transparencies protects the polycarbonate tab and supports the light bar during installation of the glazing into the vehicle portal.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: November 9, 2021
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: Lauren Black
  • Patent number: 11162652
    Abstract: A minimally complex, low cost/economical luminaire that distributes point source light for general lighting applications, the luminaire having a substrate with a linear array of discrete light sources positioned to emit light into an air-filled cavity and a light redirecting assembly on the other side the air-filled cavity, the assembly comprising a clear, light transmissive rigid cover and a clear, light transmissive semi-rigid flexible film positioned between the cover and the substrate, wherein the film is non-adhesively secured within the luminaire and flexed to generally conform to the shape of the cover and wherein the surface of the film facing into the air-filled cavity comprises an array of optical relief structures extending into the air-filled cavity.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: November 2, 2021
    Assignee: ABL IP Holding LLC
    Inventors: John N. Magno, Eric W. Teather, Christopher C. Rich
  • Patent number: 11100309
    Abstract: A fingerprint sensing device including a light guide cover plate, a light source, an image sensor, and a light output element is provided. The light guide cover plate includes a flat plate portion and a light entering portion. The flat plate portion has a first surface and a second surface opposite to each other. The light entering portion is located at the second surface, and has an inclined light incident surface inclined with respect to the first surface and the second surface. The light source is configured to emit a light beam. The light beam is transmitted to the light entering portion and the flat plate portion in sequence via the inclined light incident surface. The light output element is disposed on the second surface, and guides the light beam in the flat plate portion to the image sensor.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: August 24, 2021
    Assignee: Guangzhou Tyrafos Semiconductor Technologies Co., LTD
    Inventors: Jun-Wen Chung, Hsu-Wen Fu
  • Patent number: 11046184
    Abstract: A cluster includes a segment liquid crystal display (LCD) panel including a plurality of segments, a liquid crystal region comprising liquid crystals, and at least one liquid crystal dam region configured such that the liquid crystals are not arranged therein, a substrate arranged under the segment LCD panel, at least one first light source, corresponding to a backlight of the segment LCD panel, arranged on the substrate, and at least one second light source, lighting of which is individually controlled, arranged on the substrate, wherein at least a portion of the at least one liquid crystal dam region overlaps each second light source in a vertical direction.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: June 29, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chong Bae Park, Min Ah Ryu
  • Patent number: 11029461
    Abstract: A lighting display assembly for use with a display monitor includes a light guide plate and a light source. The light guide plate is formed from a single piece of material that is transparent to visible light. The light guide plate includes a center opening extending between its front and rear surfaces and defining an inner sidewall. The light source is configured to emit visible light and is positioned facing the inner sidewall so that light emitted therefrom passes through the inner sidewall and into the light guide plate. A pattern is formed in the light guide plate and positioned to be illuminated by the visible light emitted from the light source so that the illuminated pattern is visible through the front surface of the light guide plate. The lighting display assembly is mounted behind a display monitor and is sized to extend laterally beyond an outer peripheral edge of the display monitor such that the illuminated pattern is visible from in front of the display monitor.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: June 8, 2021
    Inventor: David Thompson
  • Patent number: 11016240
    Abstract: A light guide film that is bendable, has a strong resistance to impact, and can perform the adjustment of the brightness per region, and a backlight unit. The light guide film includes a plurality of optical units each of which includes a light guide portion and an emission portion; and a resin portion that is filled between the optical units adjacent to each other, in which the light guide portion guides light incident from a light source to the emission portion, the emission portion emits light guided and incident from the light guide portion from a light emission surface, the plurality of optical units are arranged in a plane direction of the light emission surfaces such that the light emission surfaces of the emission portions are parallel to each other, and the light guide portions and the emission portions are arranged in the plane direction of the light emission surfaces.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: May 25, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Megumi Sekiguchi, Naoyoshi Yamada
  • Patent number: 10996511
    Abstract: A display including a curved backlight and system for stray light control is disclosed. In embodiments, the curved backlight includes a curved substrate and an array of light sources disposed on the curved substrate, collimating optics, and a diffuser. The array of light sources includes a first group of light sources and a second group of light sources. The collimating optics are arranged to receive and collimate light only from the first group of light sources. The diffuser is arranged to receive and diffuse the collimated light from the collimating optics and light from the second group of light sources. The display further includes a liquid crystal layer arranged to receive light generated by the array of light sources and to display an image. The display further includes a controller configured to control the array of light sources such that at least some of the light sources emit light.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: May 4, 2021
    Assignee: Rockwell Collins, Inc.
    Inventors: Brian W. Walker, Albert N. Stuppi, Clint L. Gosch, Ricky J. Johnson
  • Patent number: 10989862
    Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: April 27, 2021
    Assignee: Japan Display Inc.
    Inventors: Masayuki Mifune, Makoto Miyao
  • Patent number: 10928676
    Abstract: A display device is provided. The display device includes a display panel, a frame including a back plate therein, a backlight module including a light source used for emitting light to the display panel. The light source includes a light bar with a plurality of light emitting units. The light bar is fixed on the back plate, and the light bar is oppositely disposed on the back plate, so that portions of light emitted by the light emitting units near two ends of the back plate on the light bar are shifted to corners of the display panel correspondingly.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: February 23, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Jianfeng Shan
  • Patent number: 10921647
    Abstract: A display device is provided. The display device includes a display panel, a frame including a back plate therein, a backlight module including a light source used for emitting light to the display panel. The light source includes a light bar with a plurality of light emitting units. The light bar is fixed on the back plate, and the light bar and the back plate have the same shape, so that portions of light emitted by the light emitting units near two ends of the back plate on the light bar are shifted to corners of the display panel.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: February 16, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Jianfeng Shan
  • Patent number: 10908017
    Abstract: In accordance with one implementation, a method for multiple source light output smoothing includes measuring a light distribution generated by multiple light sources arranged within an electronic device and determining at least one brightness adjustment based on the measured light distribution that is sufficient to locally reduce light output within a discrete region of a surface of the electronic device to satisfy predefined luminosity criteria. The method further includes applying an optical filter between the multiple light sources and the surface, the optical filter configured to reduce light output within the discrete region according to the determined at least one brightness adjustment.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: February 2, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: David M. Lane, Andrew W. Hill
  • Patent number: 10883670
    Abstract: A light guide module and a light source module are provided. The light guide module includes a light guide plate (LGP) and a first reflective component. The LGP includes a plate body and first microstructures. The plate body has a first light incident surface, a first side surface and a first surface connected thereto. The first microstructures are located on the first surface, and each of the first microstructures has a first optical surface facing the first side surface and the first microstructures are arranged in a first microstructure pattern. The first reflective component is located beside the first side surface, wherein the first microstructures are adapted to cause a light beam reflected by the first reflective component to present a first pattern through the first optical surfaces.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: January 5, 2021
    Assignee: CHAMP VISION DISPLAY INC.
    Inventors: Chin-Ku Liu, Hsin-Hung Lee, Chung-Hao Wu
  • Patent number: 10866453
    Abstract: A display panel, a method for fabricating a display panel, a display device and a display method are provided. In an embodiment, the light extraction element extracts light from the light guide plate. The extracted light travels substantially to the liquid crystal layer in a direction perpendicular to the light guide plate. An orthographic projection of the light blocking portion of each pixel region on the first surface covers an orthographic projection of the light extraction element corresponding to the pixel region on the first surface. With the refraction of the liquid crystal lens formed by the liquid crystal layer, the extracted light may be blocked by the light blocking portion or may be emitted from a first light transmitting portion. Thereby, an image display is realized by means of the refraction of the liquid crystal lens without providing a polarizer, improving light utilization efficiency of the display device.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: December 15, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jifeng Tan
  • Patent number: 10838133
    Abstract: A screen with a transmissive image generator with pixels which is operable in at least two operating modes, B1 for a free viewing mode and B2 for a restricted viewing mode, and with an illuminating apparatus comprising a backlight that has a planar extension and radiates light in a restricted angular range, a plate-shaped light guide arranged in front of the backlight and provided with outcoupling elements on one of the large surfaces and/or within its volume, the light guide being transparent to at least 70% of the light emitted by the backlight; and light sources arranged laterally at edges of the light guide. In mode B2, the backlight is switched on and the light sources are switched off, and in mode B1 at least the light sources are switched on. In interaction with the transmissive image generator the illuminating apparatus constitutes an advantageous screen permitting the operating modes.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: November 17, 2020
    Assignee: siOPTICA GmbH
    Inventors: André Heber, Uwe Schroeter, Juergen Schwarz, Ambrose Peter Nari, Markus Klippstein, Stepan Alkhimenko
  • Patent number: 10823895
    Abstract: The present disclosure provides a light-emitting module. The light-emitting module includes a light guide plate, a light source, and a brightness adjustment element. The light guide plate has a light incident surface, a front surface, and a back surface opposite the front surface. The light incident surface is located between the front surface and the back surface and is adjacent to the front surface and the back surface. The brightness adjustment element has a strip portion and at least one protruding portion. The strip portion has a first edge proximal to the light incident surface. The protruding portion is located on the first edge of the strip portion, and the protruding portion is aligned with the light source and extends away from the first edge.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 3, 2020
    Assignee: E Ink Holdings Inc.
    Inventors: Yao-Tsung Shih, Mei-Chen Chang, Yu-Nan Pao, Hsin-Tao Huang
  • Patent number: 10810950
    Abstract: A control unit is configured to enhance the contrast of an image through a simple process. The control unit is capable of connecting in a communicable manner to a point-of-gaze detection sensor and includes: a light-emission-intensity determination unit configured to determine a light emission intensity for each LED unit in such a manner that the light emission intensities of those LED units which are associated with a range of gaze including a point of gaze on a display screen are increased in excess of respective light emission intensities specified based on an image obtained from an HDR signal; and a light emission control unit configured to control light emission of the LED units.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 20, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masayuki Takahashi
  • Patent number: 10809435
    Abstract: A backlight unit, a method for manufacturing the same and a display device are provided. The backlight unit includes a light guide plate, an LED layer and an optical microstructure layer. The light guide plate includes a light incident surface and a light exit surface opposite to the light incident surface. The LED layer is provided on the light incident surface of the light guide plate, and includes plural LED chips arranged in an array. The optical microstructure layer is provided on one of the light incident surface and the light exit surface of the light guide plate, and includes plural optical microstructures in one-to-one correspondence with the plural LED chips. Each of the plural optical microstructures is configured to cause at least a portion of light emitted from a corresponding LED chip to propagate in the light guide plate by total internal reflection.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: October 20, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Wang, Xiandong Meng, Jifeng Tan, Jian Gao, Xiaochuan Chen, Jing Lv, Xue Dong
  • Patent number: 10795069
    Abstract: A light guide plate includes a body region and a light incident region. The body region has a light exiting surface, an opposite base surface, and a side surface between the light exiting surface and the base surface. The light incident region is located at the side surface of the body region for receiving incident light and includes projections protruding outwards from the side surface of the body region, and a cavity is defined between adjacent projections. Each projection has a top surface and outer side walls. The outer side walls also define inner side walls of each cavity together with a bottom surface. The top surface, side walls, and bottom surface together are a light incident surface of the light incident region. An angle between the top surface and each outer side wall is called an apex angle, which is greater than 90 degrees.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: October 6, 2020
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qiang Zhang, Hui Dong, Mookeun Shin, Haifeng Xu, Xiaojun Wu, Zhenyu Han, Aixia Sang, Xiaochun Shi, Kaiwen Wang, Kai Wang
  • Patent number: 10768418
    Abstract: A head-up display device has a backlight unit configured to illuminate a liquid crystal panel from a back side. The backlight unit has an optical condenser configured to condense the light emitted from a light source toward the liquid crystal panel, and a microlens array arranged in an optical path between the optical condenser and the liquid crystal panel to diffuse the light condensed by the optical condenser. The microlens array has a light emission face arranged in a position optically conjugated with an eyebox to emit the light incident from the optical condenser.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: September 8, 2020
    Assignee: YAZAKI CORPORATION
    Inventor: Noriaki Narushima
  • Patent number: 10754078
    Abstract: A light source, a shaping system using the light source, and a method of using the light source in a shaping system. The light source may comprise one or more actinic energy sources; and a light guide plate. The light guide plate may have at least: a light output face; an input edge; and a back surface facing opposite the light output face. Wherein, the input edge of the light guide plate may be arranged to receive UV light from the one or more actinic energy sources. Wherein, the light guide plate may have a plurality of scattering features that are configured to scatter UV light received from the input edge. Wherein, the back surface may reflect UV light towards the light output face and is transparent to non-UV light.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: August 25, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Seth J. Bamesberger
  • Patent number: 10739511
    Abstract: A decorative component for a vehicle includes a plurality of light source sections, a housing configured to hold the plurality of light source sections, a light guide member that has a first surface and a second surface that face each other and that is configured to guide light emitted from the plurality of light source sections thereinto, and a plurality of light emitting sections that are provided on the light guide member and that are configured to emit light guided through the light guide member from the first surface as emission pattern light having a predetermined shape, wherein a plurality of pattern forming sections are constituted by the light source section and the light emitting section that correspond to each other, and in each of the pattern forming sections, the light emitting section selectively reflects the light emitted from the corresponding light source section.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: August 11, 2020
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Rumi Itabashi, Toshiyuki Kondo
  • Patent number: 10728979
    Abstract: A lighting fixture may provide a proximal lighting effect and a distal lighting effect. In some cases, the lighting fixture may include a multi-channel driver and multiple groups of LEDs. Based on an adjustable input level, the driver may provide current to subgroups of the LEDs, arranged at various areas of the lighting fixture. Responsive to the level of the input, the driver may provide current to various LED subgroups at the various areas, such that a particular proximal effect is provided at a particular area of the lighting fixture based on the particular value of the input level. In addition, the distal lighting effect may have a stable value across the adjustments to the input level, and the corresponding adjustments to the proximal effects. The distal effect may be perceivable at a location remote from the lighting fixture, such as a work surface.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 28, 2020
    Assignee: ABL IP Holding LLC
    Inventors: Benjamin Marshall Suttles, Daniel Aaron Weiss
  • Patent number: 10705380
    Abstract: A display including a curved backlight and system for stray light control is disclosed. In embodiments, the curved backlight includes a curved substrate and an array of light sources disposed on the curved substrate, collimating optics, and a diffuser. The array of light sources includes a first group of light sources and a second group of light sources. The collimating optics are arranged to receive and collimate light only from the first group of light sources. The diffuser is arranged to receive and diffuse the collimated light from the collimating optics and light from the second group of light sources. The display further includes a liquid crystal layer arranged to receive light generated by the array of light sources and to display an image. The display further includes a controller configured to control the array of light sources such that at least some of the light sources emit light.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: July 7, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Brian W. Walker, Albert N. Stuppi, Clint L. Gosch, Ricky J. Johnson
  • Patent number: 10698151
    Abstract: A substrate with a textured surface is disclosed. The substrate may be, for example, a light emitter comprising a light guide, for example a backlight element for use in a display device, wherein a surface of the light guide, for example a glass substrate, is configured to have a textured surface with a predetermined RMS roughness and a predetermined correlation length of the texture. A plurality of light scatter suppressing features can be provided on the textured surface. Textured surfaces disclosed herein may be effective to reduce electrostatic charging of the substrate surface. Methods of producing the textured surface are also disclosed.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: June 30, 2020
    Assignee: CORNING INCORPORATED
    Inventors: James Patrick Hamilton, Karl William Koch, III, Aize Li, Jonathan Michael Mis, Vasudha Ravichandran, Nicholas James Smith, Christine Coulter Wolcott, Ruchirej Yongsunthon
  • Patent number: 10690838
    Abstract: A liquid crystal display device and a backlight module are provided. The backlight module includes a frame, a light source, and a light guide plate. The light guide plate includes a light incident surface, a bottom portion and a top portion. The frame includes a lateral plate disposed opposite to the light incident surface. The light source includes a flexible printed circuit and a LED, and the flexible printed circuit includes a vertical portion and a first horizontal portion, wherein the vertical portion is disposed between the lateral plate and the light incident surface, the LED is disposed on a surface of the vertical portion facing the light guide plate, and the first horizontal portion is a part of the vertical portion bending toward the light guide plate. By practice of the disclosure, the narrow border design of the liquid crystal display device could be achieved.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: June 23, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Mei Han, Gege Zhou
  • Patent number: 10670795
    Abstract: An optical structure, a light guide, and a display device can reduce an influence of diffraction and improve optical performance more than conventionally possible. A reflective pattern (10A) is an optical structure that changes a traveling direction of light and emits the light, the optical structure including: a reflective surface (20) formed of a flat surface and configured to change a traveling direction of light; and a both-end curved surface (30) formed adjacent to the reflective surface (20) and having a surface in a curved shape corresponding to a side surface of a cylinder.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: June 2, 2020
    Assignee: Omron Corporation
    Inventors: Masayuki Shinohara, Gouo Kurata, Tsuyoshi Arai, Norikazu Kitamura, Yuto Mori
  • Patent number: 10649275
    Abstract: A display is described. The display includes an array of light sources, collimating optics, a diffuser, a liquid crystal layer and a controller. The array of light sources includes a first group of light sources and a second group of light sources. The collimating optics are arranged to receive and collimate light from the first group of light sources, but not the second group of light sources. The diffuser is arranged to receive and diffuse the collimated light, directed normal to the diffuser, from the collimating optics and light from the second group of light sources. The liquid crystal layer is arranged to receive light from the diffuser and to display an image. The controller is configured to control the array of light sources such that at least some of the light sources emit light.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: May 12, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Rick J. Johnson, Albert N. Stuppi
  • Patent number: 10651419
    Abstract: According to some example embodiments of the present invention, a display device includes: a display panel, the display panel being flexible and including an active region for displaying an image, and a peripheral region outside the active region when viewed in a plan view; a window structure on the display panel; a printed circuit board electrically connected to the display panel; a flexible circuit board connecting the display panel to the printed circuit board; and a cover structure adjacent to the window structure, when viewed in the plan view, wherein the cover structure includes: a cover portion overlapped with the flexible circuit board, when viewed in the plan view; and a sidewall portion extending downwardly from the cover portion, and the cover portion has a bottom surface that is coplanar with a bottom surface of the window structure.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sangwol Lee
  • Patent number: 10620364
    Abstract: A display device includes a backlight module and a display panel. The display panel includes a first display mode to display a first light transmissive pattern and a second display mode to display a second light transmissive pattern. The backlight module includes a first light guide plate having a plurality of first microstructures, a second light guide plate having a plurality of second microstructures, a first light source and a second light source. The first light source is configured to emit a first light beam into the first light guide plate, and the first light beam is emerged from the first light guide plate through the first microstructures. The second light source is configured to emit a second light beam into the second light guide plate, and the second light beam is emerged from the second light guide plate through the second microstructures.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: April 14, 2020
    Assignee: Coretronic Corporation
    Inventors: Pei-Ting Huang, Bing-Han Tsai
  • Patent number: 10584850
    Abstract: Films useful as optical reflectors are prepared by coating a sheet of polyethylene terephthalate or other thermoplastic with acrylic polymer, white pigment, and optionally other additives such as impact modifiers, matting agents and UV stabilizers.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: March 10, 2020
    Assignee: Arkema France
    Inventors: Jiaxin Jason Ge, Mark A. Aubart