Lenticular Patents (Class 359/455)
  • Patent number: 11953699
    Abstract: In order to achieve the above object, an image display apparatus according to an embodiment of the present technology includes a light source section and one or more optical components. The one or more optical components include an optical surface for dividing the light emitted from the light source into a plurality of light beams to be converged and a reflective surface for reflecting the plurality of light beams converged by the optical surface, and emit the plurality of light beams reflected by the reflective surface from the optical surface.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 9, 2024
    Assignee: Sony Group Corporation
    Inventor: Takeshi Yonezawa
  • Patent number: 11945308
    Abstract: A cluster according to an embodiment of the disclosure includes a display and a spatial image panel. The display is installed in the vehicle to output predetermined information as a 2D image. The spatial image panel is configured to output a 3D image in a predetermined space in front. The spatial image panel includes a first lens array, a second lens array, and a refractive medium. The first lens array is disposed adjacent to the display and includes a plurality of first lenses arranged on the same plane. The second lens array is disposed in parallel with the first array so that the first lenses and second lenses overlap each other. The refractive medium is disposed between the first lens array and the second lens array.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: April 2, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Yong Uk Lee, Kyung Lack Kim, Ki Hoon Lee
  • Patent number: 11892766
    Abstract: Provided is a projection screen, the taper angles of a plurality of triangular pyramid units arranged in an array are designed to gradually change according to a predetermined relationship, so that the image light emitted from the projector is reflected by a microstructure layer with a triangular pyramid unit and then converges to a range centered on the human eye, which reduces the difference in brightness at different viewing positions, so as to ensure that the projection screen has high brightness uniformity and high gain.
    Type: Grant
    Filed: June 28, 2020
    Date of Patent: February 6, 2024
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Lin Wang, Xiaofeng Tang, Wei Sun, Yi Li
  • Patent number: 11822079
    Abstract: An electronic device may have a display that provides image light to a waveguide. First and second liquid crystal lenses may be mounted to opposing surfaces of the waveguide. An coupler may couple the image light out of the waveguide through the first lens. The second lens may convey world light to the first lens. Control circuitry may control the first lens to apply a first optical power to the image light and the world light and may control the second lens to apply a second optical power to the world light that cancels out the first optical power. Each lens may include two layers of liquid crystal molecules having antiparallel pretilt angles. The pretilt angles and rubbing directions of the first lens may be antiparallel to corresponding pretilt angles and rubbing directions of the second lens about the waveguide.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: November 21, 2023
    Assignee: Apple Inc.
    Inventors: Jin Yan, Young Cheol Yang, Igor Stamenov, Scott M. DeLapp, Francesco Aieta, Bradley C. Steele, Enkhamgalan Dorjgotov, Se Baek Oh
  • Patent number: 11644602
    Abstract: By providing a rib portion 40 having a constant height in the range from 50% to 120% of the height of the highest point of a split lens structure between a plurality of split lenses, even when roll forming is performed at a high speed, trapping of air bubbles can be inhibited, and resin flow can be promoted; therefore, an optical element 10 having a surface on which a lens shape is formed and having a special optical effect can be obtained with few structural defects and high productivity.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 9, 2023
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Koichi Shinoda
  • Patent number: 11635562
    Abstract: An image source unit includes: a surface light source device including a reflective polarizing plate; a liquid crystal panel; and an optical sheet that is arranged between the surface light source device and the liquid crystal panel, the optical sheet including: an optical function layer that is laminated to one surface of a substrate layer; and a light diffuser layer that is arranged on one surface of the optical function layer, the one surface being on an opposite side of another surface of the optical function layer where the substrate layer is arranged across the optical function layer, the optical function layer including: light transmission parts that extend in a horizontal direction, and are arranged in a plurality of rows at predetermined intervals in a vertical direction; and light absorption parts that are formed between adjacent light transmission parts, and have a lower refractive index than that of the light transmission parts, wherein an angle formed by interfaces on upper sides of the light abs
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: April 25, 2023
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventor: Tsuyoshi Kashiwagi
  • Patent number: 11527741
    Abstract: The present invention provides a display panel, a display device, and a manufacturing method of a display panel. A side wall of a black matrix unit is arranged at an inclined angle, so light is more easily emitted from a black matrix, and a light emission angle is increased. Accordingly, a light transmittance and a viewing angle of an organic light-emitting diode (OLED) are increased. Therefore, the display performance of the OLED is effectively improved.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: December 13, 2022
    Inventor: Zesheng Chen
  • Patent number: 11307328
    Abstract: There is provided an optical body and a display device that enable wavelength dependence of a reflectance to be reduced and reflection of incident light to be further suppressed, the optical body including: a concave-convex structure formed on a surface of a base material. An average period of concavities and convexities of the concave-convex structure is equal to or shorter than a wavelength belonging to a visible light band. A standard deviation of differences between respective positions of bottom faces of the concavities of the concave-convex structure in a normal direction of a flat surface of the base material and a median of the positions of the bottom faces is greater than or equal to 25 nm.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: April 19, 2022
    Assignee: DEXERIALS CORPORATION
    Inventors: Shunichi Kajiya, Asahiko Nogami, Kyoko Sakurai, Kazuya Hayashibe
  • Patent number: 11269224
    Abstract: An optical assembly, a display device and a method for driving the same are provided. The optical assembly includes two substrates disposed opposite to each other, and electrodes are disposed on the two substrates respectively. Voltages are applied to the electrodes to form a transverse electric field being configured for driving liquid crystal molecules proximal to the substrates to deflect, so that liquid crystal proximal to the two substrates both form liquid crystal lenses, thereby forming a double-layer liquid crystal lens structure. Since the two substrates of a liquid crystal cell have high alignment accuracy, the electrodes on the two substrates are consistent in spatial distribution, thereby solving mura problem.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: March 8, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qian Wang, Xiaochuan Chen, Wenqing Zhao, Zhongxiao Li, Xiaochen Niu
  • Patent number: 11231644
    Abstract: A Fresnel projection screen includes: a Fresnel layer; a first micro-structure layer disposed at a light incident side of the Fresnel layer, the first micro-structure layer including a plurality of micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; and a reflective layer disposed on a side of the Fresnel layer away from the first micro-structure layer.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: January 25, 2022
    Assignee: HISENSE LASER DISPLAY CO., LTD.
    Inventors: Wei Xiao, Chao Wang, Fei Zhao, Qiang Zhong, Xiaoping Li
  • Patent number: 11209577
    Abstract: Improved optically absorptive surfaces as well as surfaces and structures exhibiting reduced or minimized optical scattering or reflection, including an improved optically black surface that can be used for stray light suppression having macroscopic repetitive features with multiple facets and/or curved faces that direct near specular rays and scattered rays from one feature element to neighboring elements.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: December 28, 2021
    Assignee: OCEAN OPTICS, INC.
    Inventor: James A. Carter
  • Patent number: 11143794
    Abstract: This application discloses an optical film, comprising: a polymer having a first surface and a second surface, the first surface and the second surface opposing to each other; a microlens structure being formed on the first surface, an accommodation structure being formed on the second surface, the accommodation structure accommodating a number of pattern structures imaging through the microlens structure; the microlens structure and the accommodation structure being integral; and the micro-focusing units and the pattern structures being adapted to each other, so that the optical film forms at least one image floating in the optical film when the optical film is viewed from a side of the pattern structures or a side of the micro-focusing units. A substrate layer is omitted from the optical film, hence, the optical film is reduced in thickness, and mechanical performance is not good, which makes the optical film easy to be cut in thermoprinting.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: October 12, 2021
    Assignee: SHINE OPTOELECTRONICS (KUNSHAN) CO., LTD
    Inventor: Jian Zhang
  • Patent number: 11143947
    Abstract: A screen comprises the following layers sequentially stacked from an incident side of projected light rays: a micro-lens layer, a transparent matrix layer, a total internal reflection layer, and a light-absorbing layer. The light-absorbing layer absorbs light passing through the micro-lens layer, the transparent matrix layer and the total internal reflection layer. The micro-lens layer comprises a plurality of micro-lens units. The total internal reflection layer comprises a plurality of microstructure units. The microstructure unit has a lower first flat surface and an upper second flat surface. The first flat surface intersects the second flat surface The micro-lens units and the microstructure units are at least partially arranged in an alternating manner. The projected light rays converged toward the first flat surface exit after being totally reflected by the first flat surface and the second flat surface sequentially.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: October 12, 2021
    Assignee: Appotronics Corporation Limited
    Inventors: Lin Wang, Fei Hu, Wei Sun, Yi Li
  • Patent number: 11105971
    Abstract: A light guide assembly, a total reflective display device and a method for manufacturing a light guide assembly are provided in the embodiments of the disclosure, the light guide assembly including: a first transparent adhesion layer, having a first profile formed thereon; a second transparent adhesion layer adhered to the first transparent adhesion layer and formed with a second profile corresponding to the first profile on a side of the second transparent adhesion layer adhered to the first transparent adhesion layer, the first profile and the second profile being formed to be in positive fit with each other and configured to incur light refraction at an interface therebetween of light rays being incident upon the first transparent adhesion layer from the second transparent adhesion layer to decrease an incident angle of the light rays; and a light guide panel, arranged on a side of the second transparent adhesion layer facing away from the first transparent adhesion layer.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: August 31, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Fei Liang, Jingjun Du, Zheng Wang, Tingxiu Hou, Xiuyun Chen, Lingyu Sun
  • Patent number: 10838255
    Abstract: A direct view display device includes a light unit, a collimating unit, an image display unit, and a contrast enhancement unit. The contrast enhancement unit includes opposing first and second major surfaces. The first major surface includes an array of optical elements. The second major surface includes a light absorbing layer and an array of apertures in the light absorbing layer and corresponding to the array of optical elements. The optical elements are disposed between the light unit and the light absorbing layer. The collimating unit is disposed between the light unit and the contrast enhancement unit. The image display unit is disposed between the collimating unit and the contrast enhancement unit. The contrast enhancement unit and the image display unit are arranged such that each optical element of the contrast enhancement unit is aligned with at least one corresponding pixel of the image display unit.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: November 17, 2020
    Assignee: Corning Incorporated
    Inventors: Kevin Thomas Gahagan, Jacques Gollier, Dmitri Vladislavovich Kuksenkov
  • Patent number: 10810909
    Abstract: Disclosed is a labeled molded container having a container main body and a label, wherein a label surface is provided with a flat portion, a concave-convex pattern, and an edge portion between the convex portion or concave portion and the flat portion, and wherein when observing the labeled molded container from a surface-side thereof by illuminating light from a backside of the container, the edge portion is seen brighter than the flat portion and the concave-convex pattern.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: October 20, 2020
    Assignee: YUPO CORPORATION
    Inventors: Mike Licata, Darren Parzych, Tom Schell, Kazuyuki Kimura
  • Patent number: 10746357
    Abstract: A lighting device includes a polychromatic light source for emitting light in a plurality of colors, a light filter, and an optical element, wherein the light filter and the optical element are sequentially provided in an optical path of the polychromatic light source; a through hole is provided in the light filter, and the through hole has a size smaller than that of light spots of the polychromatic light source reaching the through hole; and the optical element is used for adjusting the light spots. Since the through hole has a size smaller than that of the light spots of the polychromatic light source reaching the through hole, the light filter can block stray light around the light spots such that more uniform portion of the light spots passes through the through hole, thereby improving the light-emitting effect of the lighting device.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 18, 2020
    Assignee: YLX Incorporated
    Inventors: Siyuan Zou, Quan Zhang, Yi Li
  • Patent number: 10719005
    Abstract: Provided is a projection screen. The screen includes: a base layer; a cylindrical lens layer formed on a side of the base layer close to a viewer, a Fresnel structure formed on a side of the base layer facing away from the viewer, a reflective layer formed on a side of the Fresnel structure facing away from the base layer, including reflective particles and configured to scatter and reflect, in a solid angle range corresponding to a particle size of the reflective particles, incident light incident from the Fresnel structure, to form reflected light; and a light-absorbing layer formed on a side of the reflective layer facing away from the Fresnel structure. The cylindrical lens layer includes a plurality of cylindrical lenses each having an axis perpendicular to a horizontal direction, and scatters light from the Fresnel structure to increase a viewing angle in the horizontal direction.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: July 21, 2020
    Assignee: Appotronics Corporation Limited
    Inventors: Fei Hu, Hongxiu Zhang, Zuqiang Guo, Yi Li
  • Patent number: 10691010
    Abstract: A projection screen with micro lenses or micro mirrors for the purpose of suppressing ambient light by means of a patterned layer stack including at least a polarizer and a quarter wave retarder. The projection screen has a surface structure where light from a projector is focussed at positions where the light can escape from the structure and is optionally diffused. The location of the focus positions depends upon the incident angle of the light coming from the projector, and therefore the screen is tailored for a certain projector configuration and projector light direction.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: June 23, 2020
    Assignee: BARCO NV
    Inventor: Dirk Maes
  • Patent number: 10656513
    Abstract: Provided are a light-reflecting microstructure, a projection screen and a projection system. The light-reflecting microstructure includes a transparent structure, the transparent structure including a light incident surface, a light-reflecting surface and a light-absorption surface connecting the light incident surface and the light-reflecting surface; a light-absorption structure located on the light-absorption surface; and a reflection layer located on the light-reflecting surface. The transparent structure is configured to refract projected light incident on the light incident surface at a preset angle to the reflection layer, and refract stray light incident on the light incident surface at another angle to the light-absorption structure. The reflection layer is configured to reflect the projected light in such a manner that the projected light is emitted at a certain angle from the light incident surface after being refracted twice through the transparent structure.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 19, 2020
    Assignee: Appotronics Corporation Limited
    Inventors: Yuxuan Zhou, Fei Hu, Yi Li
  • Patent number: 10627562
    Abstract: An apparatus for distributing light from a planar waveguide through an array of elongated surface relief features formed in a major surface of the waveguide. Light received within a waveguide is propagated transmissively and retained by total internal reflection, except in response to impinging upon light deflecting elements which sufficiently redirect the light to escape the waveguide through the array of elongated surface relief features that further redirects and redistributes the light.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 21, 2020
    Assignee: SVV TECHNOLOGY INNOVATIONS, INC.
    Inventor: Sergiy Vasylyev
  • Patent number: 10491869
    Abstract: Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: November 26, 2019
    Assignee: SONY CORPORATION
    Inventors: Tatsuya Oiwa, Kazuyuki Takahashi, Koji Miura
  • Patent number: 10472885
    Abstract: A daylighting film (1) according to an aspect of the present invention includes a first base (2) that has optical transparency, multiple daylighting units (3) which are formed on at least a first surface (2a) of the first base (2) and each of which has the optical transparency, an opening space (9) which is provided between each of the multiple daylighting units (3), and a mark (5) which is provided on at least any one of the first surface (2a) side of the first base (2) and the second surface (2b) side that is opposite in direction to the first surface (2a), and which indicates information relating a daylighting film (1).
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: November 12, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Daisuke Shinozaki, Tsuyoshi Kamada, Shun Ueki
  • Patent number: 10429659
    Abstract: An optical arrangement having at least a lens mode in which the optical arrangement is a lens arrangement having an array (9) of lenticular lenses (11) each of which has a particular lens surface shape such that, when tracing rays through a lenticular lens after they have entered one side of the lenticular lens, there exists at least one ray that hits the lenticular lens surface perpendicularly. This arrangement gives reduced banding and loss of intensity at steep angles when used in an autostereoscopic display.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: October 1, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Siebe Tjerk De Zwart, Marcellinus Petrus Carolus Michael Krijn, Fetze Pijlman, Oscar Hendrikus Willemsen, Martin Gerard Hendrik Hiddink
  • Patent number: 10281795
    Abstract: A liquid crystal lens film structure can includes a first substrate; a second substrate opposite to the first substrate; an adhesive layer on the second substrate; and a liquid crystal lens film between the first substrate and the adhesive layer. The liquid crystal lens film includes a resin layer configured to include a plurality of concave portions and a plurality of liquid crystal portions configured to each include liquid crystal molecules filled in the respective concave portion. The adhesive layer comes in contact with the liquid crystal lens film.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 7, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seong-il Kim, Su Seok Choi, Jong Hoon Woo, Joong Ha Lee, Sang Hoon Oh
  • Patent number: 10139055
    Abstract: The fluorescence light source device of the present invention includes a fluorescence member formed from a phosphor composed of single crystal or polycrystal and excited by excitation light. A periodic structure layer made of a high refractive index material having a refractive index of not less than the refractive index of the fluorescence member is formed on the surface of the fluorescence member. The periodic structure layer has a surface with a periodic structure having a periodic array of conical or truncated projections and formed by an etching process. The aspect ratio which is a ratio of the height of the projections to the pitch in the periodic structure is within a range of 0.5 to 0.9.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: November 27, 2018
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Masaki Inoue, Seiji Kitamura
  • Patent number: 10078227
    Abstract: An autostereoscopic display screen includes a light-deflecting component and a double-sided lenticular lens. The light-deflecting component is configured to deflect a light beam towards multiple directions. The double-sided lenticular lens includes a first cylindrical lens array, a second cylindrical lens array, and a central portion. The first cylindrical lens array includes first cylindrical lenses, in which each of the first cylindrical lenses has a first length in a first axial direction. The second cylindrical lens array includes second cylindrical lenses and at least one third cylindrical lens. The second cylindrical lenses have a second length in the first axial direction and the third cylindrical lens has a third length in the first axial direction, in which the first length is greater than the second length and the second length is greater than the third length. The central portion is disposed between the first and second cylindrical lens arrays.
    Type: Grant
    Filed: October 23, 2016
    Date of Patent: September 18, 2018
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: June-Jei Huang
  • Patent number: 10025135
    Abstract: A microlens array substrate includes a substrate, a first microlens that is disposed on a face of the substrate, a first light-transmissive layer that is disposed to cover the first microlens, a second microlens that is disposed on the intermediate layer and is arranged to overlap with the first microlens in a planar view, and a second light-transmissive layer that is disposed to cover the second microlens. A first flat portion is disposed between the first microlenses that neighbor each other at a vertex. A second flat portion is disposed between the second microlenses that neighbor each other at a vertex. The first flat portion and the second flat portion are arranged in order for at least a part of the first flat portion and a part of the second flat portion to overlap with each other in a planar view.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: July 17, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Junichi Wakabayashi
  • Patent number: 10024968
    Abstract: An optical module, for use in a depth camera, includes a plurality of laser emitting elements, each of which emits a corresponding laser beam, and a micro-lens array (MLA) that includes a plurality of lenslets. Laser beams emitted by adjacent laser emitting elements at least partially overlap one another prior to being incident on the MLA For each lenslet of at least a majority of the lenslets of the MLA, the lenslet is at least partially filled by light corresponding to laser beams emitted by at least two of the laser emitting elements. The inclusion of the plurality of laser emitting elements is used to reduce speckle contrast. The overlap of the laser beams, and the at least partially filling of the lenslets of the MLA with light corresponding to laser beams emitted by multiple laser emitting elements, is used to reduce diffraction artifacts.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: July 17, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Joshua Hudman, Marshall DePue
  • Patent number: 10009527
    Abstract: A compact LED lighting unit, (1) for camera flash applications, comprising a reflective housing having (14) having a reflective base (15) and an open top (51); an LED (10) mounted within the reflective housing (14) and a beam shaping foil stack (12) provided over the open top of the housing (14); wherein, the foil stack (12) comprises first and second microstructured sheets (50, 52), each having an array of elongate locally parallel ridges (41) facing away from the LED, wherein the ridges of one sheet locally cross the ridges of the other sheet by an angle in the range 30 to 150 degrees.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: June 26, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Hendrik Johannes Boudewijn Jagt, Floris Maria Hermansz Crompvoets, Wouter Dekkers, Fritz Helmut Zahn, Olexandr Valentynovych Vdovin, Jacobus Johannes Franciscus Gerardus Heuts, Maria Johanna Helena Sander-Jochem, Christian Kleijnen
  • Patent number: 9761748
    Abstract: A photovoltaic (PV) module includes an absorber layer coupled to an optic layer. The absorber layer includes an array of PV elements. The optic layer includes a close-packed array of Keplerian telescope elements, each corresponding to one of an array of pupil elements. The Keplerian telescope substantially couple radiation that is incident on their objective surfaces into the corresponding pupil elements. Each pupil element relays radiation that is coupled into it from the corresponding Keplerian telescope element into the corresponding PV element.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: September 12, 2017
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Gregory N. Nielson, William C. Sweatt, Murat Okandan
  • Patent number: 9720312
    Abstract: A projection screen includes a flexible substrate, a reflective layer and a transparent coating layer. The flexible substrate has a first surface and a second surface opposite to each other. The reflective layer is disposed on the first surface of the flexible substrate. The transparent coating layer is coated on the reflective layer, and the transparent coating layer has a pattern on a surface opposite to the reflective layer. Moreover, a manufacturing method of the projection screen is also provided.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: August 1, 2017
    Assignee: Coretronic Corporation
    Inventors: Fang-Hsuan Su, Chia-Chi Chung, Kai-Li Chen
  • Patent number: 9703166
    Abstract: A method is provided for laser ablation that reduces or eliminates a diffraction effect produced by damage to a surface from which an ablated material is removed. The method includes at least one of reducing the amount of surface damage produced and altering the damage structure produced such that it is irregular.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: July 11, 2017
    Assignee: GENTEX CORPORATION
    Inventors: Henry A. Luten, Donald L. Bareman, Thomas J. Scott, Kurtis L. Geerlings, William L. Tonar, Niels A. Olesen
  • Patent number: 9620688
    Abstract: A display device includes a micro-lens film which has a high fill-factor and a high luminance ratio and prevents generation of moiré. The display device includes a display panel configured to display an image, a plurality of Light Emitting Diodes (LEDs) configured to generate light to supply light to the display panel, a light guide panel configured to guide light to the display panel, and a micro-lens film including a base film that concentrates and diffuses light emitted from the light guide panel, a lens unit at an upper surface of the base film, and a back-coating film at a lower surface of the base film. The lens unit includes unit block groups randomly arranged at the upper surface of the base film, each unit block group containing randomly arranged fixed-shape lenses having different sizes, and micro-beads randomly formed on surfaces of the fixed-shape lenses.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: April 11, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Hyun Lee, Won-Taek Moon, Sun-Woong Kim, Bo-Ra Kim, Sang-Dae Han, Su-Jin Chang
  • Patent number: 9571821
    Abstract: A stereoscopic image displaying device includes an outer surface that a detection target object approaches; a stereoscopic image generating unit that generates a three-dimensional stereoscopic image based on an input video signal, and a proximity sensor unit that is disposed on a side of the outer surface that is opposite to a side that the detection target object approaches and detects proximity of the detection target object to the outer surface based on a height that is a distance from the outer surface and is set based on parallax information included in the video signal.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: February 14, 2017
    Assignee: Japan Display, Inc.
    Inventors: Tsuyoshi Ohyama, Tsutomu Tanaka, Masato Imai
  • Patent number: 9448459
    Abstract: An autostereoscopic display device includes an adjuster for adjusting a direction of a light beam. The adjuster has an off-state and on-state, and includes a stack of layers. The stack includes first and second solid material layers having first and second optic axes, respectively, and a switchable birefringent material. Further, the stack includes a first interface between the first solid material layer and the birefringent material, and a second interface between the second solid material layer and the birefringent material. In the off-state, the birefringent material at the first and second interfaces are configured to have optic axes parallel to the first and second optic axes, respectively. In the on-state, the birefringent material at the first and second interfaces are configured to have optic axes perpendicular to the first and second optic axes, respectively.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: September 20, 2016
    Assignee: Koninklijke Philips N.V.
    Inventor: Fetze Pijlman
  • Patent number: 9411167
    Abstract: A billboard display system includes a light source housed in a box-like structure. The light source shines light away from a non-transparent front wall and through a transparent rear wall and thence through a sheet of projection film having an array of images thereon and thence is reflected by a corresponding array of concave mirrors back to corresponding apertures. The apertures are formed at the bottom of indentations, preferably cone-shaped throughout the area of the front wall. The light passes through the apertures and thence out of the indentations to create a 3D image in the eyes of a viewer looking at the front wall.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 9, 2016
    Inventor: Kedrick F. Brown
  • Patent number: 9395616
    Abstract: A projection screen that includes a transparent substrate, a plurality of micro-lens structures, a Fresnel lens structure, a light absorption layer, and a diffusive reflection layer is provided. The transparent substrate has a first surface and a second surface opposite to the first surface. The micro-lens structures are located at the first surface of the transparent substrate. The Fresnel lens structure is located at the second surface of the transparent substrate. The light absorption layer includes a light absorption portion. The diffusive reflection layer includes a plurality of dispersive diffusive reflection portions connected to the Fresnel lens structure. The deviation degrees of the diffusive reflection portions with respect to a plurality of optical axes of the corresponding micro-lens structures increase together with an increase in slopes of inclined surfaces of the Fresnel lens structure on the corresponding optical axes. A manufacturing method of the projection screen is also provided.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: July 19, 2016
    Assignee: Coretronic Corporation
    Inventors: Fu-Ming Chuang, Hung-Ta Chien, Fang-Hsuan Su
  • Patent number: 9285669
    Abstract: A reflection screen includes: a reflection layer provided on the back side and adapted to reflect light; and a surface shape layer provided on the reflection layer, at the image source side relative to the reflection screen, the surface shape layer having a plurality of unit optical shapes arrayed and deflecting image light toward the reflection layer side. The unit optical shape satisfies, in a section along the array direction of the unit optical shapes and orthogonal to a screen plane, the relationship of ?+2???>90°, where ? is an angle that a total reflection surface makes with a plane parallel to the screen plane, ? is an angle that an incidence surface makes with a normal direction to the screen plane, and ? is an angle that light incident on the incidence surface makes with the normal direction to the screen plane.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: March 15, 2016
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tetsuya Sadahiro, Kazunobu Ogawa
  • Patent number: 9280040
    Abstract: A projection screen includes a reflector and a plurality of compound lenses. The compound lenses are arranged at the same side of the reflector in an array manner. Each of the compound lenses has a first lens portion and a second lens portion. The first lens portion is disposed between the second lens portion and the reflector. A surface of the first lens portion opposite to the reflector has a first radius of curvature, and a surface of the second lens portion opposite to the reflector has a second radius of curvature. The first radius of curvature has a length greater than the second radius of curvature.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: March 8, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Yu-Chang Wang
  • Patent number: 9180724
    Abstract: Dry-erase drawing sheets, a drawing apparatus, and a dry-erase drawing kit are described. The drawing sheets have a non-lenticular or a lenticular lens arrangement on a top surface, material layers comprising a body of the sheet, and images printed on surfaces of one or more of the material layers. The images are configured to sufficiently interact with the lens arrangement to exhibit a three-dimensional visual and/or animated effect when viewed through the top surface. The drawing sheets also include a dry-erase compatible layer overlying the top surface. The drawing apparatus includes a frame that has a central opening and a backing member that releasably couples to the frame. Together the frame and backing member retain the drawing sheets within the central opening of the frame during use. The drawing sheets, drawing apparatus, and one or more dry-erase crayons or markers are provided in the kit.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: November 10, 2015
    Assignee: Crayola, LLC
    Inventors: Craig Skinner, Joseph Thomas Moll, Vito Niosi
  • Patent number: 9170478
    Abstract: Disclosed are a display screen of an image display system capable of displaying a 3D (three-dimensional) image and providing an image with a high contrast ratio in a bright room and a method for manufacturing the same. The display screen includes: a Fresnel lens layer; a reflective layer formed the light-exit surface of the Fresnel lens layer to reflect image light; and a protection layer formed on the light-incident surface of the Fresnel lens layer, wherein one surface of the protection layer may have an embossed pattern.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 27, 2015
    Assignee: LG Electronics Inc.
    Inventors: Sungtae Kim, Byunggil Ryu, Wonki Cho
  • Patent number: 9057941
    Abstract: Provided is a front reflection screen for a front projection display apparatus. The front reflection screen includes a reflection layer configured to reflect an incident light including an image light projected from a projector and an external light, and a tint layer disposed before the reflection layer and including light absorbing particles to block a portion of the incident light.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: June 16, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong-ho Nho, Sung-tae Kim, Sang-hyun Sohn, Won-yong Lee, Yong-Dok Cha
  • Patent number: 9030630
    Abstract: A microlens includes a lens center portion having a lens-curved surface and a lens circumference portion having a linear side surface. In the case where length of the side surface is taken as L1, length of an aperture is taken as Ax, an angle formed by a normal of the side surface and incident light on the microlens is taken as ?1, and an angle formed by the normal of the side surface and output light from the microlens is taken as ?2, a relational expression of Equation 1 is satisfied.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: May 12, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Norihiko Ozawa
  • Patent number: 9007691
    Abstract: An object is to provide an image display sheet capable of realizing a smooth pseudo moving image and observing the image with reduced in discomfort. A configuration is provided in which a lenticular sheet composed of an arrangement of a plurality of cylindrical lenses 1a and an image forming layer 3 are laminated, and the image display sheet is formed capable of observing an image formed on the image forming layer 3 from the convex shape side of the cylindrical lenses 1a of the lenticular sheet, as a virtual image with movement, or movement and deformation. The image forming layer 3 is formed repeatedly with a plurality of images 3 for displaying virtual images in association with the cylindrical lenses 1a so as to correspond to the cylindrical lenses 1a, respectively, one-on-one, and difference between an arrangement pitch length A of the cylindrical lenses 1a and a pitch length B of the repeatedly formed images 3a formed on the image forming layer 3 is in a range of 0% to 10%.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 14, 2015
    Assignee: Grapac Japan Co., Inc.
    Inventors: Yoshihide Yumoto, Kazushi Omori
  • Patent number: 8995060
    Abstract: A head-up display device includes an image module, a substrate, and an optical film. The image module has an emitting source, wherein the emitting source transmits at least one image. The substrate is disposed corresponding to the image module. The optical film is disposed on the substrate and includes at least one transmission layer, wherein each transmission layer has a plurality of transmitting column structures obliquely arranged side by side, and a longitudinal direction of the transmitting column structure has a tilt angle with respect to a normal of the substrate. The at least one image is transmitted to the optical film, and the obliquely disposed transmitting column structures cause the at least one image to scatter on the optical film.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 31, 2015
    Assignee: National Applied Research Laboratories
    Inventors: Wen-Hao Cho, Bo-Huei Liao, Donyau Chiang, Cheng-Chung Lee
  • Publication number: 20150077849
    Abstract: A reflection screen includes: a reflection layer provided on the back side and adapted to reflect light; and a surface shape layer provided on the reflection layer, at the image source side relative to the reflection screen, the surface shape layer having a plurality of unit optical shapes arrayed and deflecting image light toward the reflection layer side. The unit optical shape satisfies, in a section along the array direction of the unit optical shapes and orthogonal to a screen plane, the relationship of ?+2???>90°, where ? is an angle that a total reflection surface makes with a plane parallel to the screen plane, ? is an angle that an incidence surface makes with a normal direction to the screen plane, and ? is an angle that light incident on the incidence surface makes with the normal direction to the screen plane.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 19, 2015
    Inventors: Tetsuya SADAHIRO, Kazunobu OGAWA
  • Patent number: 8854684
    Abstract: A method of creating a lenticular imaging article. The method comprises printing an interlaced composite image according to a reference grid of a printer, providing a lenticular lens sheet having a plurality of parallel lenticular lines between a plurality of lenslets, selecting an acute angle for an intersection between the first and second axes according to a function of a resolution of the interlaced composite image and a pitch of the lenticular lens sheet, and positioning the lenticular lens sheet so that the intersection forms the acute angle.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: October 7, 2014
    Assignee: HumanEyes Technologies Ltd.
    Inventor: Assaf Zomet
  • Patent number: 8848286
    Abstract: A lens plate includes a transparent substrate wafer, and a plurality of lenses and spacers that are formed of a single portion of material on the transparent substrate wafer. An assembly includes a first lens plate that includes a first transparent substrate wafer, a plurality of first lenses and a plurality of spacers, the first lenses and spacers being formed of a single portion of material on said first transparent substrate wafer. The assembly also includes a second lens plate that includes a second transparent substrate wafer and a plurality of second lenses formed thereon, each of the plurality of second lenses corresponding to a respective one of the plurality of first lenses. The lens plates are aligned such that each of the plurality of first lenses aligns with the respective one of the plurality of second lenses, and the lens plates are bonded to one another.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: September 30, 2014
    Assignee: Omni Version Technology, Inc.
    Inventor: Leah Widmer
  • Patent number: RE46601
    Abstract: A liquid crystal display apparatus is provided in which occurrence of a moiré pattern can be prevented without largely reducing front luminance. A liquid crystal display apparatus 1 includes a surface light source 4, a liquid crystal display panel 2, and first and second prism sheets 5 and 6 for condensing light emitted from the surface light source 4 and guiding the light toward the liquid crystal display panel. The first and second prism sheets 5 and 6 are disposed such that prism array directions thereof are orthogonal to each other. When a pixel pitch of the liquid crystal display panel 2 is defined as Pp [?m]; a prism array pitch of the first prism sheet 5 is defined as Px [?m]; and a prism array pitch of the second prism sheet 6 is defined as Py [?m], relationships of Px?Pp/(14?0.045 Pp) and Py?Pp/(11.5?0.032 Pp) are satisfied.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: November 7, 2017
    Assignee: Saturn Licensing LLC
    Inventors: Kiyohiro Kimura, Makoto Aoki, Jun Sasaki, Toru Abiko