Using Polarized Light Patents (Class 359/465)
  • Patent number: 11927775
    Abstract: Provided are 3D glasses capable of reducing crosstalk when disposed on the viewer side of a liquid crystal panel that is time-divisionally driven; an optical device including the 3D glasses; and a three-dimensional image display device including the optical device. The 3D glasses include a right-eye polarizer and a left-eye polarizer, the right-eye polarizer and the left-eye polarizer each including a polarizing plate and a first ?/4 plate, at least one of the right-eye polarizer or the left-eye polarizer including a phase difference layer on or behind a back surface side of the polarizing plate, wherein a phase difference introduced by the right-eye polarizer in a thickness direction at a wavelength of 550 nm is different from a phase difference introduced by the left-eye polarizer in the thickness direction at a wavelength of 550 nm.
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: March 12, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Masahiro Hasegawa, Akira Sakai, Kiyoshi Minoura
  • Patent number: 11921379
    Abstract: The disclosure relates to a switching process for switching in an autostereoscopic display device from a first view mode to a second view mode, wherein the autostereoscopic display device comprises a display panel, a lenticular device and means for applying a voltage, the process comprising the application of a switching voltage across both switching electrodes of the lenticular device wherein a ramp voltage is applied that increases during a ramp period of at least 0.50 second from a starting voltage at which the lenticular device is in its, first view mode to a final voltage at which the lenticular device is in its second view mode, wherein during at least 0.40 second of the ramp period, the ramp voltage is at an intermediate voltage that is in the range of 5-60% of the minimal voltage; and the final voltage is equal to or higher than minimal voltage.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: March 5, 2024
    Assignee: ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL CO., LTD.
    Inventors: Patrick Godefridus Jacobus Maria Peeters, Hubertus Petrus Cornelis Vankuringen, Ivar Jacco Boerefijn, Andrii Ivanovych Rudavskyi, Pieter Wilhelmus Theodorus De Jong
  • Patent number: 11860456
    Abstract: According to one embodiment, a liquid crystal device includes a plurality of first light-shielding members arranged at a first pitch, a first organic insulating film covering the first light-shielding members, a plurality of second light-shielding members overlapping the first light-shielding members, a second organic insulating film covering the second light-shielding members, a plurality of third light-shielding members overlapping the second light-shielding members, a third organic insulating film covering the third light-shielding members, and a plurality of first electrodes arranged at a second pitch that is smaller than the first pitch.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: January 2, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Junko Nagasawa, Jin Hirosawa
  • Patent number: 11703690
    Abstract: A display assembly includes: a display module including a plurality of pixel islands; and a plurality of lens arrays laminated at a light-exiting side of the display module. Each lens array includes a substrate, a cover plate, a first transparent electrode, a second transparent electrode, and a liquid crystal layer and a diffraction lens grating arranged between the first and second transparent electrodes. The diffraction lens grating includes a plurality of diffraction lens grating units corresponding to the plurality of pixel islands. A voltage is applied to each of the first and the second transparent electrodes in such a manner that a refractive index of a liquid crystal molecule in the liquid crystal layer is equal to or not equal to a refractive index of the diffraction lens grating.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: July 18, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Jian Gao
  • Patent number: 11531212
    Abstract: Stereoscopic 3D systems include a conversion system having a polarization beam-splitting element to separate a randomly polarized incident image-beam into one transmitted image-beam and at least one reflected image-beam, first and second polarization modulators arranged to modulate states of the transmitted and reflected image-beams between first and second output linear polarization states, the modulators including first and second pi-cell liquid crystal elements aligned in mutually crossed orientation and switched between first and second optical-states, one of the optical-states having in-plane optical retardation corresponding to a quarter-wave plate (QWP), an additional QWP proximate to one of the pi-cell liquid crystal elements and perpendicularly aligned to the optical axis for the in-plane optical retardation for one of the pi-cell liquid crystal elements.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: December 20, 2022
    Inventors: Stephen Palmer, Bertrand Caillaud, YanLong Li
  • Patent number: 11476447
    Abstract: A foldable circular polarizing plate includes a polarizer and a foldable compensation film disposed on one surface of the polarizer, wherein in-plane retardations of the liquid crystal layer at 450 nm, 550 nm, and 650 nm wavelengths satisfy Relationship Equations 1 or 2, the compensation film is configured to absorb light in a wavelength region of less than or equal to 420 nm, and a reflection color in a CIE-Lab color coordinate system satisfies ?a*b*?5.0 and a foldable organic light emitting diode display including the same.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 18, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., DIC CORPORATION
    Inventors: Tsuyoshi Ohyama, Seung Hyun Lee, Hyun-Seok Choi, Hidetoshi Nakata, Toru Ishii
  • Patent number: 11467397
    Abstract: Methods are described for forming polarized image films in which a displayed image changes depending on the state of polarization of a backside illumination source. Methods are also described for eliminating the leakage of unpolarized light through certain parts of the images resulting in unwanted visual artifacts in these images. Polarized dual graphic films achieving images with higher optical density and uniformity, minimum ghosting and mis-registration, can be made by a manufacturing technique that is faster, capable of higher production volumes, and that can produce polarized images at a lower cost. An exemplary method provides for forming a polarized image or pattern on an oriented substrate by using a negative patterned resist image or pattern formed by graphic arts techniques, followed by the imbibition of a dichroic dye or iodine ink to form a corresponding positive image in the areas not protected by the resist.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: October 11, 2022
    Assignee: MicroContinuum, Inc.
    Inventors: W. Dennis Slafer, Christine Higgins
  • Patent number: 11368741
    Abstract: Method, systems, and apparatuses are described that transmit and/or receive video content. A request associated with an output device may be received. Based on the request and a mode of operation of the output device, a first data stream of a plurality of data streams is determined. Each of the plurality of data streams may be associated with a different adjusted version of video content that may be multidimensional and/or multi-perspective video content. Based on the first data stream, a first adjusted version of the video content may be determined. The output device may output the first adjusted version.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: June 21, 2022
    Assignee: Comcast Cable Communications, LLC
    Inventor: Mark David Francisco
  • Patent number: 11353767
    Abstract: A varifocal system comprises a stacked first-type liquid crystal (LC) lens structure and a stacked second-type LC lens structure in optical series. The stacked first-type LC lens structure includes a plurality of first-type LC lenses, and a first-type LC lens provides continuously variable optical states in a first step resolution. The stacked second-type LC lens structure includes a plurality of second-type LC lenses and provides a plurality of optical states in a second step resolution. The first step resolution is smaller than the second step resolution, such that when the stacked second-type LC lens structure is switched between two optical states, the first-type LC lenses provide a continuous adjustment of optical power between the two optical states. The stacked first-type LC lens structure and the stacked second-type LC lens structure together provide a continuous adjustment range of optical power for the varifocal system.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: June 7, 2022
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Lu Lu, Fenglin Peng, Douglas Lanman
  • Patent number: 11327336
    Abstract: A panel with a virtual curved display surface and a display device are provided. The virtual curved display panel includes a display panel and a grating. The grating is disposed at a light-exiting side of the display panel, and includes a plurality of light-transmitting regions and a plurality of light-shielding regions spaced apart from each other. Respective widths of the plurality of light-shielding regions of the grating are gradually decreased as respective distances from the plurality of light-shielding regions to a symmetry axis of the display panel are increased, and respective widths of the plurality of light-transmitting regions are gradually increased as respective distances from the plurality of light-transmitting regions to the symmetry axis of the display panel are increased.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 10, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jian Gao, Xiaochuan Chen, Yafeng Yang, Wei Wang, Chen Yu Chen
  • Patent number: 11276360
    Abstract: A display device includes a first display panel, a second display panel, and a controller. The first display panel includes a plurality of first subpixels which are aligned in a grid-like layout in an x-direction and a y-direction. The second display panel includes a plurality of second subpixels which are aligned in a grid-like layout along the x-direction and the y-direction at a same pitch as that of the plurality of first sub pixels. The controller controls the plurality of first subpixels and the plurality of second subpixels based on image data. At least one of the first display panel and the second display panel that is arranged on a user side is a transmissive display panel. Each of the plurality of first subpixels is superimposed on any of the plurality of second subpixels in a normal direction of the first display panel.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: March 15, 2022
    Assignee: KYOCERA Corporation
    Inventors: Kaoru Kusafuka, Mitsuhiro Murata
  • Patent number: 11269402
    Abstract: An eyewear device presents, via an image display, an initial displayed image. The initial displayed image has an initial field of view corresponding to an initial head direction or an initial eye direction. Eyewear device detects movement of a user of the eyewear device by: (i) tracking, via a head movement tracker, a head movement of a head of the user, or (ii) tracking, via an eye movement tracker, an eye movement of an eye of the user of the eyewear device. Eyewear device determines a field of view adjustment to the initial field of view of the initial displayed image based on the detected movement of the user. Field of view adjustment includes a successive field of view corresponding to a successive head direction or a successive eye direction. Eyewear device generates a successive displayed image based on the field of view adjustment and presents the successive displayed image.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: March 8, 2022
    Assignee: Snap Inc.
    Inventors: Ilteris Canberk, David Meisenholder, Jonathan M. Rodriguez, II
  • Patent number: 11206383
    Abstract: This disclosure describes a system configured to present primary and secondary, tertiary, etc., virtual reality content to a user. Primary virtual reality content may be displayed to a user, and, responsive to the user turning his view away from the primary virtual reality content, a sensory cue is provided to the user that indicates to the user that his view is no longer directed toward the primary virtual reality content, and secondary, tertiary, etc., virtual reality content may be displayed to the user. Primary virtual reality content may resume when the user returns his view to the primary virtual reality content. Primary virtual reality content may be adjusted based on a user's interaction with the secondary, tertiary, etc., virtual reality content. Secondary, tertiary, etc., virtual reality content may be adjusted based on a user's progression through the primary virtual reality content, or interaction with the primary virtual reality content.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: December 21, 2021
    Assignee: Mindshow Inc.
    Inventor: Jonathan Michael Ross
  • Patent number: 11163177
    Abstract: Architecture and designs of wearable devices for viewing multimedia in 3D are described. According to one aspect of the present invention, a display device is made in form of a pair of glasses. A separate enclosure is provided to generate content for display on the glasses. The content is optically picked up by an optical cable and transported by one or more optical fibers in the optical cable to the glasses, where an image polarizer, deposed on or included in the bridge of the glasses, receives the content and produces an alternating polarized content sequence.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: November 2, 2021
    Inventor: Darwin Hu
  • Patent number: 11019315
    Abstract: A video display system (1) includes a display device (10) displaying a display video image containing a transmitted background and a video image indicated by a video signal, and a video processing device (30) converting, based on a characteristic related to the transmitted background, the video image indicated by the video signal to be transmitted to the display device (10).
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 25, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Daizaburo Matsuki, Takashi Yamada, Yoshiaki Iwata
  • Patent number: 11002984
    Abstract: A stereoscopic display apparatus is disclosed. In the stereoscopic display apparatus, each unit pixel of a display panel includes a first transparent region. A barrier panel on the display panel may include second transparent regions overlapping with the first transparent region of each unit pixel. Thus, in the stereoscopic display apparatus, the transparency may be improved without the quality deterioration of a stereoscopic image.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 11, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Yeon Kim, Wook Jeon, Hee-Jin Im, Yong-Ku Lee, Ju-Hoon Jang, You-Yong Jin, Woon-Chan Moon
  • Patent number: 10948578
    Abstract: Distinguishing between holographic and physical objects in an environment. Determining whether an object is holographic or physical begins with monitoring locating objects within an environment. When locating an object within the environment, an object can be identified as physical by detecting a shadow cast by the object, detecting a reflection of the electromagnetic (EM) wave directed at the object, and by detecting a reflection of a sound wave directed at the object. Otherwise, when locating an object within the environment, an object is identified as holographic as a result of the object not casting a shadow, not receiving a reflection of the EM wave from the object, and not receiving a reflection of the sound wave from the object. In one or more embodiments, actions upon a particular object can be determined based on whether the object is physical or holographic.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: March 16, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Eric V. Kline, Sarbajit K. Rakshit
  • Patent number: 10942374
    Abstract: An optical film for eyewear includes a light control layer and at least one light reflection layer laminated in this order from an outer side with respect to a viewer. The light reflection layer includes a cholesteric liquid crystal layer that reflects left-handed circularly polarized light or right-handed circularly polarized light in a visible light range, and the light control layer is a quarter wave plate.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: March 9, 2021
    Assignee: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Yoshiyuki Yahagi, Kouichi Tanaka, Saki Abe, Yuki Aikawa
  • Patent number: 10852619
    Abstract: A multifocal system and a method thereof are provided. The multifocal system comprises a first adaptive lens assembly including a plurality of lenses arranged in optical series. The plurality of lenses includes at least one active liquid crystal (LC) lens having a plurality of optical states, such that the plurality of lenses provides a plurality of combinations of optical power, and the plurality of combinations of optical power provides a range of adjustment of optical power for the multifocal system. The multifocal system may include a second adaptive lens assembly configured to provide a plurality of combinations of optical power that is opposite to but having a same absolute value as the plurality of combinations of optical power provided by the first adaptive lens assembly.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: December 1, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Oleg Yaroshchuk, Junren Wang, Lu Lu
  • Patent number: 10663851
    Abstract: The present invention relates to a stereoscopic image display through which after the incident light incident from a projector lens is split into different lights according to polarized components, by selectively delaying the phase of each split light by a predetermined value through an on/off operation of an optical switch module, each light is converted to have the same polarized component, and the synthesized light obtained by synthesizing the lights having the same polarized component is projected on a screen so as to double the luminance on the screen.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: May 26, 2020
    Inventors: Sang Su Kim, Kim Hung Yu
  • Patent number: 10666916
    Abstract: Modulated circular polarization viewing systems and methods that cause temporal modulation of color, brightness, or both, of objects treated with materials having differential polarization reflectance.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: May 26, 2020
    Assignee: Beam Engineering for Advanced Measurements Co.
    Inventors: Nelson V. Tabirian, David E. Roberts
  • Patent number: 10652526
    Abstract: The invention features techniques and systems for presenting two or more perspective views to each eye of the viewer, through division multiplexing of the viewer's entrance-pupil. The system is constituted by a selective-aperture array with each aperture being transparent only to light beams with some special characteristics, at least one display screen for optical information presentation, and other optional elements. The optical message on at least one display screen propagates to the selective-aperture array directly, or be directed to the selective-aperture array or the eye of the viewer by other optional elements. Through selective filtering by the apertures with temporal filtering characteristics or exclusive filtering characteristics, multiple perspective views get presented to an eye of the viewer through the selective-aperture array.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 12, 2020
    Assignee: SUN YAT-SEN UNIVERSITY
    Inventors: Lilin Liu, Dongdong Teng
  • Patent number: 10598838
    Abstract: Disclosed herein are display panels, display panel stacks, and techniques to manufacture such display panel stacks where a polarizer is provided for each illumination element of the display panel stack. A polarizer can be formed onto each individual illumination element once the illumination element is transferred to the backplane. The polarizer can be arranged to polarize light emitted from the illumination element and light incident on the display from ambient.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 24, 2020
    Assignee: INTEL CORPORATION
    Inventors: Khaled Ahmed, Kunjal Parikh, Zhiming Zhuang, Jun Jiang
  • Patent number: 10585223
    Abstract: Provided is a depolarizing film including a depolarizing layer composed of a first region and a second region having differing optical characteristics, wherein in the depolarizing layer, the ratio between the area of the first region and the area of the second region is 0.45:0.55 to 0.55:0.45, the first region is an optically anisotropic region causing 90° optical rotation of light that is incident on one surface of the depolarizing layer before the light is emitted from the other surface, and the second region is an optically isotropic region having optical isotropy.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: March 10, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yukito Saitoh, Daisuke Kashiwagi, Ayako Muramatsu, Yujiro Yanai, Hideki Kaneiwa
  • Patent number: 10571795
    Abstract: A stereoscopic light recycling device is provided. A beam splitter is constructed of substantially orthogonally polarizing material on which divergent image light is received and is positioned at an angle to a source of the divergent image light. A phase shifting optic includes a reflective surface coated by a phase shifting film and is positioned at an angle non-perpendicular to at least a portion of the image light from the beam splitter. The angle of the phase shifting optic is dependent on the angle of the beam splitter.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: February 25, 2020
    Assignee: Lightspeed Design, Inc.
    Inventors: Chris Ward, Robert Mueller, Kirk Melby
  • Patent number: 10488672
    Abstract: The present invention provides a stereoscopic display component, a liquid crystal panel and a display device. The stereoscopic display component includes a backlight board and a grating array, wherein the backlight board includes a plurality of backlight sets, each backlight set includes a plurality of backlight strips capable of emitting light independently, the grating array includes a plurality of grating sets in one-to-one correspondence with the plurality of backlight sets, each grating set includes a plurality of gratings in one-to-one correspondence with the plurality of backlight strips in each backlight set, and each grating can be used for guiding light emitted from the backlight strip corresponding to the grating to two preset viewpoints. The present invention further provides a liquid crystal panel and a display device. The display device provided by the present invention has relatively high visual resolution.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: November 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Quanmin Zhong, Xinghua Li, Wei He, Jing Wang, Zhiyong Yang
  • Patent number: 10466500
    Abstract: This document discloses a stereoscopic image display device. In the image display device, a display device displays a first image data and a second image data in a time-dividing manner. A switchable retarder panel is configured to control light emitted from the display device and is made of electrically controlled birefringence (ECB) liquid crystals. Polarization glasses polarize the light emitted from the switchable retarder panel. The polarization glasses comprise a left eyeglass comprising a polarizer having a tilt of 45° about a light absorbing axis, and a right eyeglass comprising a polarizer having a tilt of 135° about the light absorbing axis.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: November 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: Sungmin Jung
  • Patent number: 10456035
    Abstract: An ophthalmic surgical microscope includes an observation optical system configured to guide observation luminous fluxes for a right eye and a left eye from an observation object to an imaging device, an actuator configured to move a position of the observation optical system in at least a direction intersecting with the observation luminous fluxes, a processor, and a memory storing computer-readable instructions. The computer readable instructions, when executed by the processor, cause the ophthalmic surgical microscope to cause a stereoscopic image display to display an observation image to be observed with a right eye of a user and an observation image to be observed with a left eye of the user, detect a position of the observation object with respect to the observation optical system, and correct a deviation in a relative position of the observation optical system with respect to the observation object.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: October 29, 2019
    Assignee: NIDEK CO., LTD.
    Inventors: Takayoshi Shibata, Michihiro Takii, Shinya Iwata
  • Patent number: 10412375
    Abstract: According to an aspect, a display device includes: a display unit that includes a plurality of pixels arranged in a matrix and that is configured to display images corresponding to a plurality of viewpoints; a parallax adjustment that is placed at a position facing the display unit, and in which a plurality of transmissive regions for transmitting light and a plurality of non-transmissive regions for limiting transmittance of light are provided in a switchable manner; a parallax controller that is configured to change positions of the transmissive regions and the non-transmissive regions, based on external information; and a display controller that is configured to change a number of successive pixels displaying an image corresponding to each of the viewpoints, based on external information.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: September 10, 2019
    Assignee: Japan Display Inc.
    Inventor: Daichi Suzuki
  • Patent number: 10401638
    Abstract: An imaging directional backlight apparatus including a waveguide, a light source array, for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure, in which the steps may further include extraction features optically hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. A rear reflector is arranged to receive light transmitted by the features and to provide polarization recirculation. Viewing windows are formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. Retarder stack arrangements are provided to increase the efficiency of polarization recirculation, reduce the visibility to damage and to reduce color changes with viewing angle.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: September 3, 2019
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Graham J. Woodgate
  • Patent number: 10379419
    Abstract: A varifocal block includes, in optical series, a switchable half waveplate (SHWP) and a plurality of liquid crystal (LC) lenses. The SHWP outputs circularly polarized light, and a handedness of the circularly polarized light is controlled by the SHWP being in an active state or a non-active state. Each LC lens of the plurality of LC lenses has a plurality of optical states, the plurality of optical states including an additive state that adds optical power to the LC lens and a subtractive state that removes optical power from the LC lens. The plurality of optical states of each of the plurality of the LC lenses compounded in optical series provides a range of adjustment of optical power for the varifocal block.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 13, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Lu Lu, Scott Charles McEldowney, Pasi Saarikko
  • Patent number: 10371985
    Abstract: A display panel, a polarizer and a display device are provided. The display panel includes a panel main body and a first polarizer disposed on at least one main surface of the panel main body. The first polarizer includes a first polarizing layer and a second polarizing layer which are stacked; a first polarizing region is formed on the first polarizing layer; a second polarizing region and a second light-transmitting region are alternately formed on the second polarizing layer; and an absorption axis direction of the second polarizing region is perpendicular to an absorption axis direction of the first polarizing region.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: August 6, 2019
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Lingjuan Meng, Mengjie Wang
  • Patent number: 10353213
    Abstract: Architecture and designs of wearable devices for viewing multimedia in 3D are described. According to one aspect of the present invention, a display device is made in form of a pair of glasses. A separate enclosure is provided to generate content for display on the glasses. The content is optically picked up by an optical cable and transported by one or more optical fibers in the optical cable to the glasses, where an image polarizer receives the content and produces an alternating polarized content sequence. An optical cube is provided to decouple the alternating polarized content sequence into two orthogonally polarized image sequences are respectively projected onto two lenses.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 16, 2019
    Inventor: Darwin Hu
  • Patent number: 10338399
    Abstract: Shaped glasses have curved surface lenses and spectrally complementary filters disposed on the curved surface lenses configured to compensate for wavelength shifts occurring due to viewing angles and other sources. The spectrally complementary filters include guard bands to prevent crosstalk between spectrally complementary portions of a 3D image viewed through the shaped glasses. In one embodiment, the spectrally complementary filters are disposed on the curved lenses with increasing layer thickness towards edges of the lenses. The projected complementary images may also be pre-shifted to compensate for subsequent wavelength shifts occurring while viewing the images.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 2, 2019
    Assignee: Dolby Laboratories Licensing Coporation
    Inventors: Martin J. Richards, Wilson Heaton Allen
  • Patent number: 10281813
    Abstract: A method for constructing a stereoscopic light recycling device is provided. At least one support member is affixed to a beam splitter positioned at an angle and constructed of orthogonally polarizing material on which image light is received. A phase shifting optic having a reflective surface coated by a phase shifting film is positioned at an angle non-perpendicular to at least a portion of the image light from the beam splitter. The phase shifting optic includes one of a uniform and non-uniform surface.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: May 7, 2019
    Assignee: Lightspeed Design, Inc.
    Inventors: Chris Ward, Robert Mueller, Kirk Melby
  • Patent number: 10268076
    Abstract: Display devices and related methods involving patterned phase retarding are provided. A representative display device includes: a backlight unit, having a light source and a color conversion layer having an alignment direction, the light comprising a first light exhibiting a first upstream polarization ratio, a second light exhibiting a second upstream polarization ratio, and a third light exhibiting a third upstream polarization ratio; and a patterned phase retarder positioned to receive the light, having a plurality of half-wave regions to alter polarization of light passing therethrough, and a plurality of free regions to pass light without altering the polarization; wherein polarization ratio (PR) is defined by PR=(I??I?)/(I?+I?); and wherein the first upstream polarization ratio exhibits a first sign, and both the second upstream polarization ratio and the third upstream polarization ratio exhibit a second sign opposite the first sign.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: April 23, 2019
    Assignees: A.U. VISTA INC., THE UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Hai-Wei Chen, Shin-Tson Wu, Wei Duan, Ming-Chun Li, Seok-Lyul Lee
  • Patent number: 10191293
    Abstract: The present disclosure provides a grating controlling method and apparatus, a grating, a display panel, and a 3D display device for achieving 3D displaying. The grating controlling method is applied to a grating, in which the grating cooperates with a display panel used for outputting left-eye images and right-eye images to achieve the 3D displaying. The grating controlling method may include: obtaining a current position of an eye of an observer who is observing 3D images; and adjusting slit positions of the grating according to the current position, so as to enable the left-eye images to be observed by the left-eye of the observer through the adjusted slits, while to enable the right-eye images to be observed by the right-eye of the observer through the adjusted slits.
    Type: Grant
    Filed: October 11, 2014
    Date of Patent: January 29, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHUNGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Hua Tian
  • Patent number: 10170060
    Abstract: A liquid crystal display (LCD) device is driven in interlaced scan to accommodate for liquid crystal (LC) setting times without sacrificing brightness. The LCD device includes an LCD panel including a first group of (e.g., even) pixel lines and a second group (e.g., odd) pixel lines, a backlight disposed behind the LCD panel to emit light toward the even and odd pixel lines, a shift grating disposed between the LCD and the backlight, the shift grating configured to block the light from the backlight from reaching either the first group of pixel lines or the second group of pixel lines, and a controller. The controller drives the LCD panel using an interlaced scan, coordinates the activation of the backlight (e.g., a strobed backlight), and changes the state of the shift grating to block the light from the backlight from reaching either the first group of pixel lines or the second group of pixel lines.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: January 1, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Shie Ping Jeffrey Tseng, Evan M. Richards, Jianru Shi, Yue Shi
  • Patent number: 10133074
    Abstract: Systems and methods are described for receiving image content from an emissive display toward a first filter stack, the first filter stack adapted to be oriented in a first direction from an optical axis of a first lens, and toward the first lens, transmitting the image content through a curved lens parallel to the optical axis of the first lens, wherein the curved lens transmits a portion of the image content to at least one optical element and to a second filter stack, the second filter stack being adapted to be oriented in a second direction from the optical axis of the first lens, and receiving the portion from the second filter stack and providing at least some of the portion to the first lens for viewing by a user.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: November 20, 2018
    Assignee: Google LLC
    Inventors: Jerome Carollo, Xinda Hu, Serge Bierhuizen
  • Patent number: 10073848
    Abstract: A database stores reference photographs of an assembly. The reference photographs are from different orientations relative to the assembly. By matching the query photograph to one or more of the reference photographs, the pose of the assembly in the query photograph is determined. Based on the pose, the pixels of the two-dimensional query photograph are related to a three-dimensional representation from engineering data. Using labeled parts from the engineering data, the parts represented in the query photograph are identified, and part information (e.g., segmentation, number, or other metadata) is provided relative to the query photograph.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 11, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Kluckner, Arun Innanje, Jan Ernst, Terrence Chen
  • Patent number: 10033948
    Abstract: Systems and methods are described that relate to an optical system including an image sensor optically-coupled to at least one nanophotonic element. The image sensor may include a plurality of superpixels. Each respective superpixel of the plurality of superpixels may include at least a respective first pixel and a respective second pixel. The at least one nanophotonic element may have an optical phase transfer function and may include a two-dimensional arrangement of sub-wavelength regions of a first material interspersed within a second material, the first material having a first index of refraction and the second material having a second index of refraction. The nanophotonic element is configured to direct light toward individual superpixels in the plurality of superpixels, and to direct light toward the first or second pixel in each individual superpixel based on a wavelength dependence or a polarization dependence of the optical phase transfer function.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: July 24, 2018
    Assignee: Verily Life Sciences LLC
    Inventors: Eden Rephaeli, Victor Marcel Acosta, Andrew Homyk
  • Patent number: 9977252
    Abstract: Three-dimensional display systems may include polarized displays that polarize light emitted from a first set of areas of the display with a first polarization for a first eye of the viewer and that polarizes light emitted from a second set of areas of the display with a second polarization for a second eye of the viewer. This may result in dark areas being perceived by a viewer when viewed through polarized 3D glasses. Systems and technologies according to this disclosure may include 3D glasses that have a lenses configured to redirect a portion of incoming light in a first axis to at least partially illuminate the dark areas.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: May 22, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Robert Arthur Sprague, Kari Juhani Rinko
  • Patent number: 9872013
    Abstract: Obtained is a configuration of a stereoscopic display device that allows a viewer to easily correct settings for stereoscopic display. A stereoscopic display device (1) includes: a display panel (10) for displaying an image; a switch liquid crystal panel (20) that is arranged so as to be stacked on the display panel (10); a position sensor for acquiring position information of a viewer; and a control unit for causing the switch liquid crystal panel (20) to display a parallax barrier in which transmitting regions and non-transmitting regions are formed in periodic fashion in a predetermined alignment direction. The control unit has, as operation modes, at least a tracking mode in which, according to the position information, the parallax barrier is moved in the alignment direction and is displayed on the switch liquid crystal panel (20), and a calibration mode for calibration of a reference position of the position information.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: January 16, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takuto Yoshino, Takehiro Murao, Hiroshi Fukushima, Ryoh Kikuchi
  • Patent number: 9813754
    Abstract: Transmitting and receiving 3D video content via an Internet protocol (IP) stream are described. 3D video content may be transmitted in a single IP stream and adjusted by a device associated with a display for rendering the 3D video content in a desired manner. 3D content also may be transmitted in a plurality of IP streams and a device associated with a display for rendering the 3D content may determine which of the plurality of IP streams to decode based upon a mode of operation of the device. A device receiving 3D video content may be configured to adjust the appearance of the content displayed on a display associated with the device. Such adjusting of the appearance may include moving the position of the rendered 3D video content within the display, positioning in band and/or out of band content in front of, behind, or within the rendered 3D video content.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: November 7, 2017
    Assignee: Comcast Cable Communications, LLC
    Inventor: Mark David Francisco
  • Patent number: 9787974
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a computer-readable storage medium having computer instructions to retrieve from a first high definition (HD) channel utilized for transporting two-dimensional media programs a first HD stereoscopic data stream, retrieve from a second HD channel utilized for transporting two-dimensional media programs a second HD stereoscopic data stream, and present a 3D HD imaging stream comprising the first and second stereoscopic data streams. Other embodiments are disclosed and contemplated.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: October 10, 2017
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Troy Meuninck, James Carlton Bedingfield, Sr., William Brown, Nadia Morris
  • Patent number: 9648310
    Abstract: Certain embodiments relate to systems and methods for presenting a stereoscopic, 3-dimensional image to a user. The system may comprise a mobile device having a camera and a pixel-selective mask overlaying a display. The system may perform facial and object recognition techniques to determine the location of the user's eyes. Subsequently, the system may adjust the mask so as to maintain an optimal stereoscopic effect for the user, regardless of the user's position.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: May 9, 2017
    Assignee: QUALCOMM Incorporated
    Inventor: Lawrence King
  • Patent number: 9588351
    Abstract: An objective is to provide a stereoscopic display device that can reduce moire occurring when the viewer is not at the optimum viewing position while maintaining the vertical degree of freedom. A parallax barrier (42) includes transparent portions (48) and light-shielding portions (46) arranged alternatingly. Supposing that a first direction is a direction in which the light-shielding portions (46) and the transparent portions (48) are arranged alternatingly and a second direction is a longitudinal direction of the light-shielding portions (46), a boundary portion (52) is present between two adjacent pixels (50) arranged in the first direction and extends in the second direction, and the edges (381, 382) of the light-shielding portions (46) disposed in the first direction have portions crossing a reference line (L) extending in the second direction and fluctuate in a specified cycle along the second direction.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 7, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takehiro Murao, Takuto Yoshino, Hiroshi Fukushima, Tomoo Takatani
  • Patent number: 9529326
    Abstract: The present invention relates to a light modulator device with a spatial light modulator, a structured polarizer means, a controllable polarization means and a light wave multiplexing means. The spatial light modulator comprises discretely addressable modulator cells. Two modulator cells each are combined to form a modulation element. The modulator cells modulate light waves which are capable of generating interference of a propagating light wave field with holographic information in a spatially structured way such that a specifiable spatial distribution of object light points of a three-dimensional scene is holographically reconstructed. The modulator cells of each modulation element are adjacently arranged regarding the direction of propagation of the light wave field. The light which is modulated by adjacently arranged modulator cells is given different polarization states by the structured polarizer means.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: December 27, 2016
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventors: Bo Kroll, Norbert Leister
  • Patent number: 9519091
    Abstract: The present invention provides a display device comprising a display panel and a conductive pattern, in which the conductive pattern comprises an irregular pattern.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 13, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Hyeon Choi, Sujin Kim, Ki-Hwan Kim, Young Jun Hong
  • Patent number: 9509970
    Abstract: In one example, a method includes identifying a pixel in an image frame that is a candidate for causing crosstalk between the image frame and a corresponding image frame in a multiview image system. The method further includes, for a pixel identified as a candidate for causing crosstalk, applying crosstalk correction to the pixel. The method further includes applying a location-based adjustment to the pixel, wherein the location-based adjustment is based at least in part on which of two or more portions of the image frame the pixel is in.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: November 29, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Gokce Dane, Vasudev Bhaskaran