Diffuser Between Light Source And Liquid Crystal Patents (Class 349/64)
  • Patent number: 10886503
    Abstract: Novel microlens array architectures for enhanced light outcoupling from light emission are provided. Organic light emitting devices (OLEDs) that include an outcoupling layer including these novel microlens array architectures and method for fabricating such OLEDs are provided. These devices may be used to provide OLEDs with optimized light extraction.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 5, 2021
    Assignees: Universal Display Corporation, Kent State University
    Inventors: Yue Cui, Deng-ke Yang, Ruiqing Ma, Gregory McGraw, Julia J. Brown
  • Patent number: 10871610
    Abstract: A lighting device includes: a light source; a plate-like optical member on which light from the light source falls; an optical sheet that imparts an optical effect to light emitted from the optical member; and an accommodating member that surrounds outer peripheral edges of the optical member and outer peripheral edges of the optical sheet. The optical sheet has a body part having a polygonal shape, extension portions provided on side portions of the body part and placed between the outer peripheral edges of the optical member and the chassis, and curtain portions, provided in corner portions of the body part, each of which connects the extension portions provided on adjacent ones of the side portions, and the extension portions and the curtain portions are provided with folds, respectively.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: December 22, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tsuyoshi Miyata
  • Patent number: 10859736
    Abstract: Provided is an optical sheet which is excellent in anti-glare property, contrast, and image clarity, as well as capable of displaying a powerful moving image, wherein at least one surface of the optical sheet is an uneven surface, and the uneven surface satisfies following conditions (1) to (3), provided that Rz0.8 is a ten-point average roughness according to JIS B0601: 1994 with a cut-off value of 0.8 mm, Rz0.25 is a ten-point average roughness according to JIS B0601: 1994 with a cut-off value of 0.25 mm, and SD is a standard deviation of an arithmetic average roughness Ra0.8 according to JIS B0601: 1994 with a cut-off value of 0.8 mm: 0.300 ?m?Rz0.8?0.650 ?m??(1) 0.170 ?m?Rz0.25?0.400 ?m??(2) SD?0.015 ?m??(3).
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: December 8, 2020
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Junya Eguchi, Yoshinari Matsuda, Hiroyuki Morikane, Shubou Taya, Yuki Tobe
  • Patent number: 10851970
    Abstract: A method of fabricating a casing including steps of providing a polycarbonate substrate, printing a first material on the polycarbonate substrate to form a light shielding layer by using a first screen, and printing a second material on the light shielding layer to form a light transmission layer by using a second screen is provided. The light shielding layer has at least one patterned transmissive region. The light transmission layer covers the at least one patterned transmissive region and a portion of polycarbonate substrate exposed by the at least one patterned transmissive region. Mesh counts of the first screen is greater than that of the second screen. A casing including a polycarbonate substrate, a light shielding layer, and a light transmission layer is provided. A thickness of the light transmission layer is greater than a thickness of the light shielding layer. An electronic device adopting the casing is provided.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: December 1, 2020
    Assignee: Wistron Corporation
    Inventors: Yi-An Chen, Hsin-Chi Chen, Yu-Teng Chang, Ying-Chi Wu, Hsiang-Ho Lo
  • Patent number: 10816714
    Abstract: A light guide element includes: an incidence surface wherefrom light enters from a light source; a first reflection surface configured to totally reflect at least a portion of the light entering from the incidence surface; a second reflection surface configured to totally reflect at least a portion of the light totally reflected by the first reflection surface as parallel light; and an emission surface configured to emit the parallel light totally reflected by the second reflection surface.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: October 27, 2020
    Assignee: Omron Corporation
    Inventors: Yuto Mori, Gouo Kurata, Norikazu Kitamura
  • Patent number: 10816834
    Abstract: A backlight module, a display device and a driving method are disclosed. The backlight module includes a first light guide plate and a second light guide plate arranged oppositely, a first light source and a second light source. A surface of the first light guide plate facing the second light guide plate is a light exit surface of the first light guide plate. The first light source is arranged at a light entrance surface of the first light guide plate. The second light source is arranged at a light entrance surface of the second light guide plate. The first light guide plate includes a light guide element guiding light along a direction perpendicular to the light exit surface of the first light guide plate. The second light guide plate includes a scattering element.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: October 27, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yanbing Wu
  • Patent number: 10809442
    Abstract: A light emitting device of the disclosure includes a first light source and a second light source, a light-guiding plate having a first main surface and a second main surface that face each other, a first end surface facing the first light source, and a second end surface facing the first end surface and the second light source, a prism sheet disposed to face the first main surface, and a reflection sheet disposed to face the second main surface. The light-guiding plate includes a plurality of first slope sections and a plurality of second slope sections both provided on one of the first main surface and the second main surface. A proportion of area occupied by the second slope sections increases in a predetermined range from the second end surface, as a distance from the second end surface increases.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 20, 2020
    Assignee: Saturn Licensing LLC
    Inventor: Shingo Ohkawa
  • Patent number: 10806040
    Abstract: A large-sized display device having a partially curved part, includes: a partially curved transparent panel fixing plate comprising a curved part, formed so as to have a predetermined curved surface, and a flat part, formed so as to be continuous with the curved part; a curved display panel formed so as to have a curved surface corresponding to the curved surface of the curved part for displaying an image through the panel fixing plate; and a flat display panel installed at the flat part for displaying an image through the panel fixing plate.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 13, 2020
    Assignee: TOVIS CO., LTD.
    Inventor: Yong Beom Kim
  • Patent number: 10754173
    Abstract: The invention provides a display device including a panel module, a reflection module and a light guide module. The panel module has a display area for displaying an image and a perspective area for displaying a background. The reflection module is disposed at a side of the panel module. A reflective sheet on the reflection module faces the panel module. The shape and position of the reflective sheet correspond to the shape and position of the display area, respectively. The light guide module includes a light guide plate and a light source. The light guide module is disposed between the panel module and the reflection module. The light guide plate has a plurality of optical microstructures, and light emitted by the light source is at least partially directed away from the panel module by the optical microstructures and is transmitted to the reflection module.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 25, 2020
    Assignee: CHAMP VISION DISPLAY INC.
    Inventors: Chin-Ku Liu, Jhong-Hao Wu, Fa-Chih Liu
  • Patent number: 10749076
    Abstract: A light-emitting device includes a light-emitting structure with an electrode layer, a light-transmitting body, a reflective layer and a metal bump. The light-transmitting body covers the light-emitting structure, and has a first side surface and a second side surface which are substantially perpendicular to each other. The reflective layer covers the first side surface without covering the second side surface. The metal bump is directly formed on the electrode layer.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: August 18, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Liu Chun-Hung, Liao Shih-An, Liu Chien-Liang
  • Patent number: 10712850
    Abstract: Embodiments of a vehicle interior system are disclosed. In one or more embodiments, the system includes a base with a curved surface, and a display or touch panel disposed on the curved surface. The display includes a cold-bent glass substrate with a thickness of 1.5 mm or less and a first radius of curvature of 20 mm or greater, and a display module and/or touch panel attached to the glass substrate having a second radius of curvature that is within 10% of the first radius of curvature. Methods for forming such systems are also disclosed.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: July 14, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Fabio Lopes Brandao Salgado, Thomas Michael Cleary, Steven Edward DeMartino, Timothy Michael Gross, Atul Kumar, Cheng-Chung Li, Torsten Nath, Wendell Porter Weeks
  • Patent number: 10712612
    Abstract: To provide a display device whereby luminance distribution uniformity within a display surface can be improved. A display device of the present invention is provided with: a rectangular display panel, one surface of which displays an image; a substrate, which is disposed to face the other surface of the display panel, said the other surface being on the reverse side of the one surface, and on which a plurality of light sources are mounted; a diffuser plate disposed between the display panel and the substrate; and a supporting member, which has an opening, which light emitted from the light sources passes through, and which supports the peripheral end of the diffuser plate. The display device is also provided with reflecting members, which are respectively provided at the peripheries of the light sources close to four corner portions of the display panel, and which reflect light diffused by the diffuser plate to the corner portions of the display panel.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: July 14, 2020
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Daisuke Teragawa, Noriaki Miyoshi, Tomohiro Asamizu
  • Patent number: 10705283
    Abstract: A light source module including a first light guide plate, a first light source, a second light guide plate, a second light source, and a turning film is provided. The first light guide plate and the second light guide plate are sequentially stacked up. The second light guide plate is disposed between the first light guide plate and the turning film. The turning film has a plurality of prism columns, the prism columns face the second light guide plate. The first light guide plate includes a first light exiting surface, the first light exiting surface is located at a side facing the turning film and has a plurality of lenticular lens structures. The lenticular lens structures are arranged along a first direction and extended along a second direction perpendicular to the first direction. Besides, a display apparatus is also provided.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: July 7, 2020
    Assignee: Nano Precision Taiwan Limited
    Inventors: Kuan-Wen Liu, Chi-Lung Lee, Hao-Jan Kuo
  • Patent number: 10705379
    Abstract: An LCD device having light weight, slimness, and high luminance, includes: a display panel; a light source providing a light to the display panel; and a light guide plate including an upper surface facing the display panel, an opposing lower surface, a light incidence surface facing the light source, and a light opposing surface opposing the light incidence surface, the light guide plate including a prism area and a non-prism area on the lower surface. The light guide plate further includes a plurality of prisms arranged at the prism area along a first direction which is perpendicular to the light incidence surface, a linear portion disposed at the non-prism area and extending from the plurality of prisms, a first resin layer on the linear portion, and a second resin layer on the first resin layer, wherein the first resin layer is thinner than the second resin layer.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jiwon Lee, Seungbeom Park, Jaesul An, Juyoung Yoon
  • Patent number: 10690841
    Abstract: The present disclosure relates to the field of display technology, and provides a backlight module including a light guide plate, a diffusion assembly and a light source assembly. The light guide plate is provided with a hole thereon. The diffusion assembly is disposed over the light guide plate. The light source assembly has a light emitting portion. The light emitting portion is disposed within the hole, and includes a COB light source with an out-light surface facing towards the diffusion assembly and a LED light source with an out-light surface facing towards a hole wall of the hole. A transmittance at a position of the diffusion assembly opposite to the COB source light is smaller than a transmittance at a remaining position thereof.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: June 23, 2020
    Assignees: Beijing BOE Chatani Electronics Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongqiang Chen, Ting Li, Qilin Li
  • Patent number: 10692423
    Abstract: The present invention provides a backlight light emitting diode arrangement process, which comprises the following steps: (1) determining a number Z of a backlight light emitting diode; (2) determining a distribution region of the backlight light emitting diode according to a space calculation formula, the space calculation formula comprising Y×A=Y×F×Q %, A=Q %×F, and A+F=(X/Z)×2; (3) further calculating distribution sizes of intermediate regions B, C, D and E using a gradually widened average value obtained through a formula (F?A)/(Z/2?1) according to the A and F calculated in step (2); (4) calculating a specific position of the backlight light emitting diode; and (5) drawing a ladder diagram.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: June 23, 2020
    Inventor: Jun Ju
  • Patent number: 10684506
    Abstract: The present disclosure relates to a direct-type backlight module and a liquid crystal display the direct-type backlight module includes a back frame, a backlight source, optical films and the elastic rope. The install pillars are arranged on the first edge and the second edge opposite to the first edge of the back frame. The backlight source is arranged within the back frame. The elastic rope and the install pillars cooperatively defines the supporting net opposite to the backlight source. The optical films are arranged on the supporting net, and thus may be supported by the supporting net. In this way, the optical films may be prevented from collapse, so as to exclude the diffusion plate. Not only the cost of the manufacturing process may be reduced, and the thin design of the backlight module may be realized.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: June 16, 2020
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gang Yu, Dehua Li
  • Patent number: 10670962
    Abstract: A photosensitive composition, a quantum dot polymer composite pattern prepared therefrom, and a layered structure and an electronic device including the same. The photosensitive composition includes a quantum dot; a carboxylic acid group-containing binder; a multi-thiol compound including a thiol group at each terminal end of the multi-thiol compound; a photopolymerizable monomer including a carbon-carbon double bond; a metal oxide fine particle; a polymeric stabilizer; a photoinitiator; and a solvent, wherein the polymeric stabilizer includes a polymer including —RO—, —R1COO—, —R1OCO—, —CR1R2—CAR—, —OCONH—R—NHCOO—R?—, or a combination thereof, as a repeating unit.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: June 2, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DSPLAY CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Shang Hyeun Park, Shin Ae Jun
  • Patent number: 10668995
    Abstract: A method of anti-fouling of a surface while said surface is at least partially submersed in an liquid environment, comprising: providing an anti-fouling light; distributing at least part of the light through an optical mediumcomprising a silicone material and/or UV grade fused silica; emitting the anti-fouling light from the optical medium and from the surface.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: June 2, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Bart Andre Salters, Roelant Boudewijn Hietbrink, Ivo Wilhelmus Johannes Marie Rutten, Hendrik Van Houten
  • Patent number: 10663860
    Abstract: A photosensitive composition including a quantum dot; a carboxylic acid group-containing binder; a multi-thiol compound including at least two thiol groups at its terminal ends; a photopolymerizable monomer including a carbon-carbon double bond; a metal oxide fine particle including an organic compound represented by Chemical Formula 1 or a moiety derived from the organic compound at a surface of the metal oxide fine particle; a polymeric stabilizer; a photoinitiator; and a solvent, a production method thereof, a quantum dot polymer composite prepared therefrom, and a layered structure and an electronic device including the same are disclosed: (AnSiR)4-n??Chemical Formula 1 wherein n, A, and R are the same as defined in the specification.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: May 26, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ha Il Kwon, Tae Gon Kim, Jongmin Lee, Shin Ae Jun
  • Patent number: 10656324
    Abstract: A display device includes a display panel and a backlight. The display panel includes a first substrate, a second substrate, and a heatsink. The first substrate includes a second substrate non-overlapping portion on which the second substrate is not disposed but a driving component is disposed. The backlight includes a light guide plate and a light source. The light source emits light toward an end surface of the light guide plate. The heatsink includes a display panel overlapping portion, a light source overlapping portion, and a connecting portion. The display panel overlapping portion is on a rear surface of the first substrate at least over an area corresponding to the driving component. The light source overlapping portion is on a side of the backlight remote from the display panel. The connecting portion connects the display panel overlapping portion and the light source overlapping portion to each other.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: May 19, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tokumi Hayashi, Tomoya Ide, Shigenori Morioka
  • Patent number: 10643556
    Abstract: A video display device includes: a display panel that displays an image based on an image signal; a light source substrate disposed on a rear side of the display panel; a plurality of light emitting elements each of which is attached to a surface of the light source substrate on a side toward the display panel to emit light to the display panel; a reflection sheet; and driver elements that drive each of the plurality of light emitting elements. Partitioning wall portions are formed in the reflection sheet, each of partitioning wall portions separates adjacent ones of the light emitting elements, and expands toward the display panel. The reflection sheet covers the surface of the light source substrate on the side toward the display panel except for portions provided with the light emitting elements. Each of the driver elements is attached to the surface of the light source substrate on the side toward the display panel in a portion surrounded by the corresponding partitioning wall portions.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: May 5, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasuhiro Kumamoto, Takeichi Shinya, Koujirou Higa, Masaaki Ofuji, Taizou Takeuchi, Takahiro Kugimaru
  • Patent number: 10598971
    Abstract: A display device includes: a panel including a display screen and a side face that extends along a periphery of the display screen; a backlight located on a side of the panel opposite to the display screen to radiate light on the panel; a case, for containing the backlight, including a bottom that faces the panel with the backlight in between and a side wall that stands at a periphery of the bottom and faces the side face of the panel; and a combining member provided between the side face of the panel and the side wall to combine the panel and the case.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: March 24, 2020
    Assignee: Japan Display Inc.
    Inventor: Ken Hirabayashi
  • Patent number: 10598973
    Abstract: A display device includes a cover bottom, a guide panel, and a guide holder. The cover bottom includes a horizontal portion covering a back surface of a light guide plate and a vertical portion extended from the horizontal portion that covers a side of the light guide plate. The guide panel includes a liquid crystal display panel supporter disposed under a liquid crystal display panel and positioned on the same plane as an optical sheet in parallel with the optical sheet, and an extension that is extended from the liquid crystal display panel supporter that covers the vertical portion. The guide holder is disposed between the light guide plate and the vertical portion. The optical sheet includes a protrusion protruding toward the vertical portion. The guide holder includes a body, a stopper protruding from the body, and a first boss protruding from the body.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 24, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Yongtaek Woo, Hyoungje Cho
  • Patent number: 10600997
    Abstract: An electronic device may be provided with a display mounted in a housing. The display may have an array of display pixels that provide image light to a user. The array of display pixels may form an active display structure with a rectangular shape. The rectangular active display structure may be surrounded by an inactive border region. Optical structures such as a sheet of glass or another optical member may have portions that are configured to bend light from the display pixels along the periphery of the active display structure. The optical member may have an area that is larger than the area of the active display structure, so that the presence of the optical member may serve to enlarge the apparent size of the display. Solidified liquid polymer may be used to support the optical structures and may be interposed between the optical structures and the active display structures.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: March 24, 2020
    Assignee: Apple Inc.
    Inventors: Tseng-Mau Yang, Christopher D. Prest, Dale N. Memering
  • Patent number: 10591644
    Abstract: An optical laminate includes a translucent substrate, and at least one optical functional layer provided on the translucent substrate. The optical functional layer has a concave-convex shape on at least one surface. The optical functional layer contains two types of inorganic fine particles, and resin particles. The optical laminate has an internal haze X and a total haze Y satisfying (1) Y>X, (2) Y?X+25, (3) Y?50, and (4) 7?X?25. The optical laminate has a transmitted image clarity of 15% to 55% as measured using a 0.5-mm width optical comb. The number of projections having a height of not smaller than 0.1 ?m is not less than 900 per mm2 of measurement area in the concave-convex shape as measured by optical interferometry at an outermost surface of the optical functional layer.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: March 17, 2020
    Assignee: TOPPAN TOMOEGAWA OPTICAL FILMS CO., LTD.
    Inventors: Naoki Serizawa, Takayuki Nakanishi
  • Patent number: 10578793
    Abstract: Color-scanning grating-based backlighting includes a color scanning protocol to provide different colors of light in different regions of a plate light guide with an intervening dark region. A color-scanning grating-based backlight includes the plate light guide and a diffraction grating configured to diffractively couple out a portion of a guided light beam as a coupled-out light beam directed away from a plate light guide surface at a predetermined principal angular direction. The backlight further includes a multicolor light source configured to provide the different colors of light to the plate light guide as the guided light beam according to the color scanning protocol. Provided light of a first color in a first region is separated from provided light of a second color in a second region one or both by the intervening dark region and by a light-confining wall of the plate light guide.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: March 3, 2020
    Assignee: LEIA INC.
    Inventors: James A. Baldwin, David A. Fattal
  • Patent number: 10564475
    Abstract: The present disclosure is directed to a liquid crystal display device including a display panel having a red pixel, a green pixel, and a blue pixel; and a backlight unit which emits light to the display panel. The backlight unit includes a light source which outputs a first color light; a color conversion layer which is disposed on the light source and converts the first color light into a second color light; an optical sheet which diffuses or condenses the second color light; and an air gap formed between the color conversion layer and the optical sheet.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: February 18, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Yul Moon, Je-Beom Park, Se-Hyun Park, Ji-Su Yoon, Kyu-Hwan Lee
  • Patent number: 10503010
    Abstract: A light-emitting apparatus including a light-emitting element and a lens covering the light-emitting element. The lens includes an upper surface having a convex shape and a lower surface including a cavity to which light emitted from the light-emitting elements is incident, in which the cavity includes an apex facing an upper surface of the light-emitting element and configured to reduce Fresnel reflections emitted vertically.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: December 10, 2019
    Assignees: Seoul Semiconductor Co., Ltd., InteLED Corp.
    Inventor: David Pelka
  • Patent number: 10475372
    Abstract: The object is to provide a technology capable of enhancing an image quality of a light-emitting unit. The light-emitting unit includes a substrate having a first surface and a second surface that is on an opposite side to the first surface, a plurality of light-emitting elements arranged in the first surface, and a plurality of light-emitting-element driving portions each for driving at least two light-emitting elements included in the plurality of light-emitting elements. The plurality of light-emitting-element driving portions are arranged in the second surface in a plurality of aligned states that are different from one another, or arranged in the second surface in an unaligned state.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: November 12, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Shota Kaneko
  • Patent number: 10466534
    Abstract: Occurrence of coloration at a screen end portion is suppressed when a backlight device having a configuration combining a blue LED and a wavelength conversion sheet is adopted. In a backlight device (600) adopting a configuration combining a blue LED (63) and a phosphor sheet (65) in order to obtain white light, a reflection partition (67) is provided on an LED substrate (62) so as to surround the blue LED (63) (more specifically, so as to surround an LED unit including one or a plurality of blue LEDs (63)). A surface of the reflection partition (67) is formed of a reflection material. A height and an angle of the reflection partition (67) is designed so that light emitted from the blue LED (63) corresponding to each area does not reach other areas.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: November 5, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Yuhsaku Ajichi
  • Patent number: 10459151
    Abstract: An optical sheet for a liquid crystal display device has functions of condensing rays of light with respect to a specific direction in a plane of the optical sheet, and diffusing rays of light with respect to a direction perpendicular to the specific direction. A backlight unit for a liquid crystal display device includes: a light guide film for guiding rays of light incident on an end face of the light guide film toward a front face side; at least one LED light source disposed along the end face of the light guide film; the optical sheet disposed on the front face side; and a prism sheet disposed on a front face of the optical sheet, with the specific direction being parallel to a direction of rays of light emitted by the at least one LED light source and perpendicular to a direction of prism rows of the prism sheet.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: October 29, 2019
    Assignee: Keiwa Inc.
    Inventors: Kenichi Harada, Yoshitada Namikawa, Tadayoshi Fukuda, Yuki Matsuno
  • Patent number: 10444563
    Abstract: A reflective polarizing film for a liquid crystal display polarizer that has a high polarization performance and eliminates a hue shift at an oblique azimuth of 45°, a polarizer for a liquid crystal display composed of the same, an optical member for a liquid crystal display, and a liquid crystal display are provided. In a reflective polarizing film for a liquid crystal display polarizer composed of a uniaxially stretched multi-layer laminate film in which a first layer and a second layer are alternately laminated, the reflective polarizing film has a polarization degree of 99.5% or more and an amplitude of a transmittance waveform of 2.0% or less in a wavelength range of 450 to 650 nm measured with respect to the polarized light incident at an incident angle of 60° on an incident plane including an azimuth angle of 45°, among polarized light components parallel to the transmission axis.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: October 15, 2019
    Assignee: TEIJIN LIMITED
    Inventors: Tomoko Shimizu, Taro Oya, Takashi Nakahiro, Koji Kubo
  • Patent number: 10408991
    Abstract: A backlight module includes first and second light emitting layers. The first light emitting layer is disposed above the second light emitting layer and each includes at least one light guide plate and light source disposed next to the respective light guide plate. Each light guide plate has at least one light transmissive region and light exit region. Each light transmissive region of the first light emitting layer corresponds to each light exit region of the second light emitting layer. Each light exit region of the first light emitting layer corresponds to each light transmissive region of the second light emitting layer. Each light source is next to each light transmissive region. Each light transmissive region is between each light source and light exit region. Each light exit region of the first light emitting layer corresponds to each light transmissive region and light source of the second light emitting layer.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: September 10, 2019
    Assignee: Coretronic Corporation
    Inventor: Cheng-Hsi Hsieh
  • Patent number: 10401539
    Abstract: According to one or more embodiments described herein, a coated article may comprise a transparent substrate and an optical coating. The transparent substrate may have a major surface, and the optical coating may be disposed on the major surface of the transparent substrate and form an air-side surface. The optical coating may comprise one or more layers of deposited material and one or more light-altering features which may reduce oscillations in the reflectance spectrum of the coated article. The coated article may exhibit a maximum hardness of about 8 GPa or greater, have an average photopic transmittance of about 50% or greater, and exhibit an angular color shift of less than about 10 from a reference illumination angle in a range of 0-10 degrees to an incident illumination angle in a range of 30-60 degrees relative to the air-side surface.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: September 3, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Robert Alan Bellman, Shandon Dee Hart, Karl William Koch, III
  • Patent number: 10401679
    Abstract: The display apparatus reflects the light emitted from the light source to a display panel using a reflective member without a member such as a light guide plate. The reflective member is configured so that the light emitted from the light source can be provided uniformly and introduced uniformly to the display panel. Even if a board with the light source disposed at a side of the reflective member, the light emitted from the light source can be radiated substantially uniformly to the entire area of the display panel by the reflective surface of the reflective member.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: September 3, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Dok Cha, Jong Bin Kim, Jeong Shan Na, Young Chol Lee, Jae Hak Cho, Jean Hur
  • Patent number: 10401558
    Abstract: An edge-lit backlight unit and a display device are provided. The backlight unit includes a light guide plate and a rubber frame, wherein, the light guide plate includes a main body portion, the main body portion is of a flat plate structure and includes a first main surface, and a second main surface which are opposite to each other and a lateral surface, and the lateral surface includes a first lateral surface portion used as a light incident side and a second lateral surface portion outside the first lateral surface portion; the light guide plate further includes an extending portion extending outwards from at least a part of the second lateral surface portion of the main body portion, and a thickness of the extending portion is smaller than that of the main body portion.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: September 3, 2019
    Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventors: Hanqi Chu, Site Cai, Jinmoo Park, Wei Lei
  • Patent number: 10393342
    Abstract: In various embodiments, a lighting device for a motor vehicle is provided. The lighting device includes at least one light source, and at least one layer of a lacquer embodied such that light may be coupled into the lacquer for achieving a luminous effect. Scattering particles are provided in the lacquer for output coupling of the light.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: August 27, 2019
    Assignee: OSRAM GmbH.
    Inventors: Thomas Feil, Daniel Weissenberger, Martin Petzold
  • Patent number: 10353136
    Abstract: A planar illumination apparatus according to an embodiment includes a light guide plate that outputs light entered into the light guide plate through a side face of the light guide plate, a plurality of light sources that are arranged on the side face side, and emit light to be entered into the side face, a substrate having a mounting surface where the light sources are mounted, and first wiring that is formed on an opposite surface opposite to the mounting surface of the substrate, and connects serially the light sources with each other.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 16, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Makoto Furuta
  • Patent number: 10355066
    Abstract: The present disclosure is provided a display device including a lower substrate, a display area, and a guideline. The display area is disposed on the lower substrate. The guideline includes a guideline disposed in an outer region of the display area. The guideline includes: a first guideline layer disposed on the lower substrate, having separation spaces, and divided into multiple parts; and a second guideline layer disposed on the first guideline layer and divided into multiple parts.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 16, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Kyungyun Kang, Jaewoong Youn, Kihyung Lee
  • Patent number: 10345510
    Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal panel, a light guide plate disposed under a back surface of the liquid crystal panel and having a light incident surface, a light source module including at least one light source disposed opposite the light incident surface and supporting an edge of one side of the liquid crystal panel at a lower part of the liquid crystal panel, and a cover bottom supporting an edge of the other side of the liquid crystal panel at the lower part of the liquid crystal panel and covering at least a portion of the light guide plate and at least a portion of the light source module.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 9, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Yongik Hwang, Changhee Choi
  • Patent number: 10317040
    Abstract: A diffuser sheet and display device having the same are provided. The diffuser sheet includes a base layer, a first skin layer on an upper surface of the base layer, and a second skin layer on a lower surface of the base layer. The base layer includes a base resin, a plurality of beads dispersed in the base resin, and a plurality of pores dispersed in the base resin.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: June 11, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Donghyun Chung, Jongwan Park, Kiduck Park, Junsoo Park
  • Patent number: 10310274
    Abstract: A display system adapted to display images with animation and depth without requiring a viewer to wear special 3D eyewear. The system includes a controller and a programmable light source operating in response to control signals from the controller to output light. The system further includes an edge-lit layer with an edge optically coupled to the programmable light source, and the output light is trapped in the layer with total internal reflection (TIR), The layer is divided into first and second segments, and an optical barrier is inserted between the segments. First and second display areas, such as etched graphics, are provided on surfaces of the two segments, and the display areas are configured to enable the light trapped via TIR to escape. Independent lighting of the segments can be used to provide animation. Depth is provided by stacking one-to-many additional similar layers on the first layer.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 4, 2019
    Assignee: DISNEY ENTERPRISES, INC.
    Inventor: Mark A. Reichow
  • Patent number: 10310327
    Abstract: A backlight module includes a supporting plate, a light source module, and an optical modulation film. The light source module includes a plurality of light sources disposed on a supporting surface of the supporting plate. The optical modulation film is disposed above the light source module and has a plurality of light emitting holes. Light from the light source module is distributed by the optical modulation film and emitted via light emitting holes at different positions. The optical modulation film has a periphery area and a central area. An average perpendicular distance between the periphery area and the supporting surface is different from an average perpendicular distance between the central area and the supporting surface.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: June 4, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Yung-Hsin Liu, Chiung-Han Wang, Li-Jia Chen
  • Patent number: 10302836
    Abstract: A backlight module includes a backplane including a base plate, and a light guide plate disposed at a side of the base plate. A mounting hole is formed in the base plate, and a light source is installed in the mounting hole. The light guide plate includes a light guide portion located within a frame area of the backlight module, and a light emitting portion located within a transparent area of the backlight module. An orthographic projection of the light guide portion on the base plate at least covers the mounting hole, and the light guide portion is configured to reflect the light emitted by the light source to the light emitting portion.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: May 28, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hongyu Zhao, Zongjie Bao, Jie Liu, Kai Diao, Jinku Lv
  • Patent number: 10289153
    Abstract: A member for chassis is provided. The member for chassis includes a frame part that is made of a thermoplastic resin bonded to at least a part of an external-form end face of a laminated sheet with an intermediate layer arranged between a pair of fiber reinforced resin sheets. The thermoplastic resin that configures the frame part is extended to a surface of the laminated sheet. An opening is provided on the surface of the laminated sheet that has been covered with the extended thermoplastic resin, and the member for chassis includes an anchor part formed by putting the thermoplastic resin into the opening.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: May 14, 2019
    Assignee: Lenovo (Singapore) PTE LTD
    Inventors: Fumitake Mizoguchi, Takehito Yamauchi, Yoshiyuki Shibayama, Yuta Tsuganezawa
  • Patent number: 10281635
    Abstract: A light guide plate and a backlight module are described. The light guide plate includes a main body and a plurality of stripe microstructures. The main body includes a light incidence surface, a light-emitting surface and a light reflective surface. The light-emitting surface is opposite to the light reflective surface, and the light incidence surface is connected between the light-emitting surface and the light reflective surface. The light-emitting surface includes a microstructure region adjacent to the light incidence surface. The stripe microstructures are arranged in the microstructure region, and parallel to a normal line of the light incidence surface.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 7, 2019
    Assignees: Radiant Opto-Electronics (Suzhou) Co.,Ltd., Radiant Opto-Electronics Corporation
    Inventors: Chia-Yin Chang, Chin-Ting Weng
  • Patent number: 10267983
    Abstract: A planar illumination apparatus according to an embodiment includes: a light-guiding plate that emits light made incident from a side face; a plurality of light sources that are arranged on the side face side and have respective light-emitting faces that emit light to be made incident on the side face; a substrate having a mounting face on which the light sources are mounted, the mounting face facing a face of the light sources opposite the light-emitting faces; and wiring that is formed on a face of the substrate opposite the mounting face and are connected to the light sources. The wiring includes wiring extending from both ends of the light sources connected in series.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: April 23, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Makoto Furuta, Takahito Yoshida
  • Patent number: 10257508
    Abstract: A light source device may include a first light source, a second light source, a light guide plate (LGP) configured to guide a light incident from at least one of the first light source and the second light source, an optical film configured to form a distribution of directional light by controlling a progress path of a light output from the LGP, and a controller configured to control activation of at least one of the first light source and the second light source in order to control the distribution of directional light.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: April 9, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoonsun Choi, Jinho Lee, Dong Kyung Nam, Kyuhwan Choi
  • Patent number: 10241255
    Abstract: The present disclosure discloses a backlight module and a liquid crystal display, the backlight module comprises: a light guide plate, a first light source and a second light source; wherein said light guide plate comprises a light emitting surface and a bottom surface as well as a side surface; said light emitting surface and said bottom surface define thickness of said light guide plate, said light guide plate at least comprises a first portion which is relatively thicker and a second portion which is relatively thin; said first light source is provided opposite the side of said light guide plate, said second light source is provided opposite said bottom surface or said light emitting surface of said light guide plate second portion. Through the above way, the present disclosure can achieve the split-screen display of the display device, simultaneously reducing the power consumption of the display device.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: March 26, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Guowei Zha