Plural Patents (Class 362/613)
  • 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
  • Patent number: 10578283
    Abstract: A linear light fixture can include a housing that includes at least one wall that forms a cavity. The linear light fixture can also a light board having multiple light sources disposed thereon, where the light sources are arranged in a linear fashion with respect to each other on the light board, where the light board is disposed within the cavity of the housing. The linear light fixture can further include a lens slidably disposed within a receiving feature of the housing. The linear light fixture can also include a first auxiliary optical member disposed within cavity of the housing, where the first auxiliary optical member includes a first body having a first end and a second end, where the first body includes a light diffusion film. The first auxiliary optical member can fill a first gap between the lens and a first side wall of the housing.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: March 3, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Gregory Howard Parker, II, Timothy Bingaman, Jason Medric Eubanks, John Strom, John Leon
  • Patent number: 10578789
    Abstract: An optical system and method provides at least one, and preferably an array of relatively small, high brightness light sources with a surrounding surface that exhibits brightness, thereby reducing the contrast between the high brightness produced by the light sources and the brightness of their surrounding surfaces. The optical system includes a light waveguide structure that captures a portion of the light from the individual high-brightness light sources, and then re-emits the source light to create brightness in the light sources' surrounding surfaces. The optical system is particularly adapted for use with LEDs, but could be used with LEDs, but could be used with other high brightness light sources.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: March 3, 2020
    Assignee: ABL IP Holding, LLC
    Inventor: Peter Y. Y. Ngai
  • Patent number: 10578792
    Abstract: A light source module includes a light guide member, a light exiting member, a first collimating light source, and a first light modulating member. The light guide member includes a first surface and a second surface disposed opposite to the first surface, the first surface is configured as a light exiting surface and comprise a light exiting region; the light exiting member is disposed on the first surface in the light exiting region; the first collimating light source is configured to provide a first collimated light; and the first light modulating member is disposed on one of the first surface and the second surface and configured to change a transmission direction of the first collimated light so as to make it incident into the light guide member and make at least part of the first collimated light meet a total reflection condition of the light guide member.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: March 3, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiandong Meng, Wei Wang, Xiaochuan Chen, Jifeng Tan, Jian Gao, Xianqin Meng
  • Patent number: 10557613
    Abstract: A light guide including a transparent body which is generally elongated in a principal direction with an outer facet forming a diopter with the environment of the body, a first row of inclined facets adapted to reflect the rays in order for them to exit, and at least one second row of reflecting facets of smaller size than the corresponding reflecting facets of the first row. The light reflected by the second row or rows is added to the light beam coming from the first row. The widths of the first row and the second rows can respectively and progressively increase and decrease from the light source so as to compensate the progressive losses of light traveling in the light guide.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: February 11, 2020
    Assignee: VALEO VISION
    Inventors: Antoine De Lamberterie, Christophe Valois
  • Patent number: 10527776
    Abstract: A display device includes a light guide plate, a first light source, a second light source, and a light transmitting portion. The light guide plate includes a first reflecting prism and a second reflecting prism. The first reflecting prism has an inclined surface that reflects the light incident from the first side surface toward the main surface. The second reflecting prism has an inclined surface that reflects the light incident from the second side surface toward the main surface. The longitudinal direction of the inclined surface of the first reflecting prism is parallel or substantially parallel to a line connecting the second light source and the inclined surface of the first reflecting prism.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazumasa Takata, Wahei Agemizu
  • Patent number: 10520153
    Abstract: A light source module includes: a substrate; and multiple light sources mounted on a first surface of the substrate in a thickness direction of the substrate in a matrix. The light sources include a set of light sources arranged in a row direction and a set of light sources arranged in a column direction. Each of the light sources includes a first electric supply pad and a second electric supply pad. A first electric supply wire extends along the column direction and supplies electricity to each of the first electric supply pads. Second electric supply wires extend in the column direction and supply electricity to each of the second electric supply pads. Portions of light sources arranged in the column direction overlap at least one of the second electric supply wires and first electric supply pads.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: December 31, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuharu Ueno, Yoshihiko Kanayama, Hiroya Tsuji, Tomoyuki Ogata
  • Patent number: 10514576
    Abstract: Image display apparatus includes liquid crystal cell, flat plate-shaped back frame, light guide plate, and a pair of support mechanisms. The pair of support mechanisms are fixed to back frame in positions at which light guide plate is clamped at both sides that intersect a first axis (X-axis). The pair of support mechanisms each includes movable component that supports light guide plate, body component that movably retains movable component, and elastic member that pushes movable component toward opposite support mechanism. Protrusion is disposed on movable component, and engagement section with which protrusion engages is disposed on light guide plate. Engagement section includes tab that is formed outwardly on an end surface of light guide plate, and notch disposed on tab and engages with protrusion.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 24, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shigeru Aruga, Masashi Imai, Yoshitoshi Ooki
  • Patent number: 10466538
    Abstract: A display device according to one aspect of the present invention includes a first substrate including a pixel portion and a terminal portion, a second substrate arranged to face the pixel portion, a first light source device arranged in the terminal portion, and irradiating a first end surface of the second substrate with first light, a liquid crystal layer arranged between the first substrate and the second substrate, and a semiconductor element arranged on a side opposite to a side of the pixel portion across the first light source device, and electrically coupled with the terminal portion, wherein the first light is propagated while reflected between the first substrate and the second substrate, and the liquid crystal layer modulates the propagated first light.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: November 5, 2019
    Assignee: Japan Display Inc.
    Inventors: Hiroki Sugiyama, Kentaro Okuyama, Hideki Kaneko, Hiroshi Inamura, Manabu Mizuno
  • Patent number: 10466410
    Abstract: A backlight device is disclosed. The backlight device includes a reflection sheet; a frame in contact with the reflection sheet; and a light guiding plate surrounded by the frame; wherein the frame comprises: a first surface in contact with the reflection sheet, a second surface spaced apart from the reflection sheet, at least one groove configured to secure a light emitting element, and a heat dissipation channel in at least one of the first surface and the second surface of the frame, wherein the heat dissipation channel is located at periphery of the groove.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: November 5, 2019
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jiang Chen, Chao Dai
  • Patent number: 10437088
    Abstract: Disclosed is a backlight module. The backlight module includes: a light source flexible printed circuit; a light-emitting diode disposed on the light source flexible printed circuit; a reflector plate disposed on the light-emitting diode; a sealant frame and a light guide plate that are respectively disposed at two opposite sides of the light-emitting diode; an optical film disposed on the light guide plate; and an upper graphite sheet disposed on the reflector plate. The backlight module has a simple structure, can increase utilization efficiency of light, and has a good heat dissipation effect.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: October 8, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jie Zeng
  • Patent number: 10359176
    Abstract: A light generating member includes a light source which generates a first light, a light conversion member which converts the first light into a second light, a bottom portion which includes long sides facing each other and short sides which are connected to ends of the long sides and face each other, first sidewall portions which are connected to the long sides, extend in a direction crossing a plane of the bottom portion and face each other, and second sidewall portions which are connected to the first sidewall portions and face each other, where the light source is disposed between the bottom portion and the first sidewall portions, the light conversion member is disposed between the second sidewall portions, and the long sides have a predetermined curvature.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hanmoe Cha, Donghyeon Lee, Seokhyun Nam
  • Patent number: 10358099
    Abstract: An exterior trim for a motor vehicle has a body that forms a surface of the exterior trim. The body has an exterior surface and an interior surface, and defines a recess or cut-out. The body has a single undulating wall formed on the interior surface of the body substantially perpendicular to a plane defined by the body, and the single undulating wall at least partially surrounds the recess or cut-out. The exterior trim also includes a human-machine interface (HMI) device disposed at least partially within the recess or cut-out of the body. The HMI device may be used to externally control certain features of the motor vehicle.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: July 23, 2019
    Assignee: DURA AUTOMOTIVE HOLDINGS U.K., LTD.
    Inventors: Jochen Schulze zur Wiesche, Axel Nüsken, Jan Stegemann
  • Patent number: 10345503
    Abstract: A display device includes a light guide plate, and light sources allowing light to be incident on a first side surface and a second side surface of the light guide plate. First incidental side surface light from the first light source is reflected to an upper surface side by first reflection parts formed on a bottom surface to display a first pattern, and second incidental side surface light from the second light source is reflected to the upper surface side by second reflection parts formed on the bottom surface to display a second pattern. Slopes are provided at parts of the first side surface and the second side surface of the light guide plate, and light reflected on a facing reflection surface and propagating in the light guide plate again is reduced by the slopes.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: July 9, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazumasa Takata, Kenji Takamoto, Wahei Agemizu
  • Patent number: 10338296
    Abstract: A display apparatus includes: a light guide plate; a light source that causes light to be incident on an end surface of the light guide plate; a hiding plate that is provided on a side of an emission surface of the light guide plate, and that includes a light transmission part which transmits light emitted from the emission surface and a light shielding part which has lower light transmittance than the light transmission part; and a colored board that has light reflectance closer to light reflectance of the light shielding part than light reflectance of the light transmission part in each wavelength, and that is provided on a side of a reflection surface of the light guide plate so as to overlap the light transmission part of the hiding plate when viewed from a direction perpendicular to the emission surface of the light guide plate.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: July 2, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazumasa Takata, Wahei Agemizu, Kenji Takamoto
  • Patent number: 10302841
    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: October 24, 2017
    Date of Patent: May 28, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Daniel Aloysius Nolan, Vasudha Ravichandran, Ioannis Georgios Roudas, Christine Coulter Wolcott
  • Patent number: 10281767
    Abstract: A display apparatus includes a backlight unit comprising a light source emitting blue light, a green color conversion material and a red color conversion material, a first polarizer disposed on the backlight unit, a first base substrate disposed on the first polarizer, a thin film transistor disposed on the first base substrate, a second polarizer disposed on the thin film transistor, a first color conversion pattern and a second color conversion pattern disposed on the second polarizer, a first color filter disposed on the first color conversion pattern, a second color filter disposed on the second color conversion pattern, a second base substrate disposed on the first and second color filters, and a third polarizer disposed on the second base substrate and having a polarizing axis same as a polarizing axis of the second polarizer.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 7, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Tae Yoon, Junghyun Kwon, Kisoo Park, Haeil Park, Moonjung Baek
  • Patent number: 10253948
    Abstract: Lighting system including: two edge-lit lightguide panels; three visible-light sources; and total internal reflection lens or bowl reflector. Each edge-lit lightguide panel is extended along longitudinal axis, has pair of mutually-opposing panel surfaces, and has peripheral edge extended along and spaced transversely away from longitudinal axis. Panel surfaces include first and second light output interfaces. Two visible-light sources located along panel peripheral edges for directing light into panels. Lens or reflector has reflective side surface and central axis transverse to longitudinal axis for directing light to third light output interface located between the others. Output interfaces cooperatively define emission aperture forming shielding zone for redirecting combined light emissions.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 9, 2019
    Assignee: ECOSENSE LIGHTING, INC.
    Inventor: Paul Pickard
  • Patent number: 10242647
    Abstract: A data segmenter is configured to determine indices using numbers of most significant bits (MSBs) of fractional values of floating-point representations of component values of an input color that are selected based on exponent values of the floating-point representations. The component values are defined according to a source gamut. The data segmenter is also configured to determine offsets associated with the indices using subsets of the fractional values. An interpolator configured to map the input color to an output color defined according to a destination gamut based on a location in a three-dimensional (3-D) look up table (LUT) indicated by the indices and offsets.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: March 26, 2019
    Assignee: ATI Technologies ULC
    Inventor: Yuxin Chen
  • Patent number: 10203535
    Abstract: The present disclosure discloses a mosaic screen. The mosaic screen comprises a box body, a backlight module and a plurality of display modules spliced with each other. The box body comprises four side walls and one box bottom. The plurality of display modules and the box bottom are oppositely fixed on the box body. The backlight module comprises a plurality of lamp panels arranged on the four side walls. Each of the lamp panels comprises: a baseplate, a light source fixing plate, and a light source fixed on the light source fixing plate. The light source fixing plate is connected with a first side of the baseplate close to the display modules, and forms an included angle with the baseplate.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: February 12, 2019
    Assignee: Boe Technology Group Co., Ltd.
    Inventors: Yang Fan, She Lin, Xin Wang
  • Patent number: 10197834
    Abstract: The present disclosure provides a curved-surface backlight source and a display device comprising the curved-surface backlight source. The curved-surface backlight source comprises: a frame, an optical film and a plurality of light source assemblies; the light source assemblies are disposed on the frame, the optical film is disposed on light emergent sides of the light source assemblies, and the light source assemblies and the optical film are in a curved shape.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: February 5, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qing Liu, Zhongbao Wu, Zezhou Yang