Patents by Inventor David A. Fattal

David A. Fattal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10901212
    Abstract: A head-up display and a three-dimensional (3D) head-up display system provide a plurality of different views of an image combined with a view of a physical environment to an eye box as a combined image to be viewed by a user. The head-up display includes a multibeam diffraction grating-based display configured to provide the different views and an optical combiner configured to relay the different views to the eye box along with the physical environment view. The different views provided by the 3D head-up display system represent different perspective views of a 3D image.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: January 26, 2021
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 10884175
    Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a tilted plurality of light beams having different principal angular directions corresponding to different view directions of a plurality of views of the multiview display. Further, the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views. The multiview backlight includes a light guide and an array of the multibeam elements. The multiview display further includes multiview pixels that include view pixels to modulate the tilted plurality of light beams having the tilt and the different principal angular directions.
    Type: Grant
    Filed: June 30, 2018
    Date of Patent: January 5, 2021
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Publication number: 20200409172
    Abstract: A horizontal parallax multiview display employs a plurality of slanted multibeam columns to scatter out of a light guide a plurality of directional light beams having different principal angular directions corresponding to view directions of the multiview display. The slanted multibeam columns may provide the multiview displays with a balanced resolution.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventor: David A. Fattal
  • Publication number: 20200386937
    Abstract: A static multiview display and method employ an array of diffraction gratings to provide a multiview image having a direction that is a function of both color and a propagation angle of a collimated guided light beam. The static multiview display includes a light guide configured to guide light in a longitudinal direction and a light source configured to provide the collimated guided light beam, the propagation angle within the light guide being determined by a longitudinal offset of an optical emitter of the light source. The static multiview display further includes the array of diffraction gratings are configured to scatter out a portion of the collimated guided light beam as a plurality of directional light beams representing the multiview image.
    Type: Application
    Filed: August 21, 2020
    Publication date: December 10, 2020
    Inventors: Xuejian Li, David A. Fattal, Francesco Aieta, Ming Ma
  • Patent number: 10852560
    Abstract: A two-dimensional/three-dimensional (2D/3D) switchable display backlight and a 2D/3D switchable electronic display employ a switchable diffuser to support 2D/3D switching. The 2D/3D switchable display backlight includes a plate light guide, a multibeam diffraction grating to couple light out of the plate light guide and the switchable diffuser to intercept and selectably either pass or scatter light beams of the coupled-out light. The 2D/3D switchable electronic display includes the backlight and further includes a light valve array to modulate the coupled-out light. The switchable diffuser facilitates selectability between a three-dimensional pixel and a two-dimensional pixel of the 2D/3D switchable electronic display.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: December 1, 2020
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 10838134
    Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a plurality of light beams having different principal angular directions corresponding to different view directions of the multiview display. The display includes multiview pixels that include sub-pixels. A size of the multibeam element is comparable to a size of a sub-pixel in a multiview pixel of the multiview display.
    Type: Grant
    Filed: June 16, 2018
    Date of Patent: November 17, 2020
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Ming Ma, Xuejian Li
  • Patent number: 10830939
    Abstract: Multibeam diffraction grating-based backlighting includes a light guide and a multibeam diffraction grating at a surface of the light guide. The light guide is configured to guide light from a light source. The multibeam diffraction grating is configured to couple out a portion of the guided light using diffractive coupling and to direct the diffractively coupled out portion away from the light guide as a plurality of light beams with different principal angular directions having directions corresponding to view directions of a multiview display.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: November 10, 2020
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Zhen Peng, Charles M. Santori
  • Publication number: 20200341182
    Abstract: A polarization recycling backlight and a multiview display employ a polarization-selective scattering feature configured to preferentially scatter out a first polarization component of guided light and a polarization conversion structure configured to convert a portion of a second polarization component of the guided light into the first polarization component. The polarization conversion structure includes a subwavelength grating.
    Type: Application
    Filed: July 12, 2020
    Publication date: October 29, 2020
    Inventors: Francesco Aieta, Xuejian Li, Thomas Hoekman, David A. Fattal
  • Patent number: 10810917
    Abstract: A dual layer backlight employs a first planar backlight to emit light and a second planar backlight to provide a plurality of coupled-out light beams. The second planar backlight includes a plate light guide and a multibeam diffraction grating configured to diffractively couple out a portion of a guided light beam within the plate light guide as the plurality of coupled-out light beams. A light beam of the coupled-out light beam has a different principal angular direction from other light beams of the coupled-out light beam plurality. A two-dimensional/three-dimensional (2D/3D) mode-switchable electronic display includes the dual layer backlight and a light valve array configured to selectively modulate emitted light as 2D pixels in a first mode and the coupled-out light beams as 3D pixels corresponding to the different 3D views in a second mode of the electronic display.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: October 20, 2020
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 10802212
    Abstract: Multiview displays include a backlight and a screen used to form a plurality of multiview pixels. Each multiview pixel includes a plurality of sets of light valves. The backlight includes a light source optically coupled to a plate light guide configured with a plurality of multibeam elements. Each multibeam element corresponds to a set of light valves and is spatially offset with respect to a center of the set of light valves toward a center of the multiview pixel. The plurality of multibeam elements are also configured to couple out light from the plate light guide with different angles and angular offsets such that at least a portion of the coupled-out light beams interleave and propagate in different view directions of the multiview display.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: October 13, 2020
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 10802443
    Abstract: Multiview displays include a backlight and a screen used to form a plurality of multiview pixels. Each multiview pixel includes a plurality of sets of light valves. The backlight includes a light source optically coupled to a plate light guide configured with a plurality of multibeam diffraction gratings. Each multibeam diffraction grating corresponds to a set of light valves and is spatially offset with respect to a center of the set of light valves toward a center of the multiview pixel. The plurality of multibeam diffraction gratings is also configured to diffractively couple out light beams from the plate light guide with different diffraction angles and angular offsets such that at least a portion of the coupled-out light beams interleave and propagate in different view directions of the multiview display.
    Type: Grant
    Filed: March 4, 2018
    Date of Patent: October 13, 2020
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Publication number: 20200322590
    Abstract: A cross-render multiview camera provides a multiview image of a scene using a synthesized image generated from a disparity map of the scene. The cross-render multiview camera includes a plurality of cameras along a first axis and configured to capture a plurality of images of the scene. The cross-render multiview camera further includes an image synthesizer configured to generate the synthesized image from the disparity map determined from the image plurality, the synthesized image representing a view of the scene from a perspective corresponding to a location of a virtual camera on a second axis displaced from the first axis. A cross-render multiview system further includes a multiview display configured to display the multiview image. A method of cross-render multiview imaging includes capturing of the plurality of images of the scene and generating the synthesized image using the disparity map.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: David A. Fattal, Roger Dass, Edmund A. Dao
  • Publication number: 20200319513
    Abstract: A mode-selectable backlight and privacy display employ directional scattering features to provide emitted light. The mode-selectable backlight includes a light guide, a first directional scattering feature to provide broad-angle emitted light from guided light having a first propagation direction within the light guide during a public mode, and a second directional scattering feature to provide directional emitted light from guided light having a second propagation direction within the light guide during a privacy mode. The directional emitted light the provided during the privacy mode is directed into a viewbox. The mode-selectable privacy display further includes light sources configured to provide the guided light having the first and second propagation directions along with an array of light valves configured to modulate the broad-angle emitted light as a public image and the directional emitted light as a private image visible within the viewbox.
    Type: Application
    Filed: June 20, 2020
    Publication date: October 8, 2020
    Inventors: David A. Fattal, Ming Ma, Xuejian Li
  • Patent number: 10798371
    Abstract: A head-tracking multiview display and a head-tracking multiview display system selectively provide a primary set of views and a secondary view representing a perspective view of a scene that is angularly adjacent to the primary view set. The head-tracking multiview display includes a multibeam backlight configured to provide a plurality of light beams corresponding to different view directions of a multiview image and a light valve array configured to modulate the light beams to provide a plurality of views including the primary view set and the secondary view. The head-tracking multiview display system further includes a head tracker configured to determine a position of a user. At a first determined position the head-tracking multiview display is configured to provide the primary view set and at a second determined position the head-tracking multiview display being configured to provide the augmented view set.
    Type: Grant
    Filed: September 4, 2016
    Date of Patent: October 6, 2020
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Publication number: 20200310115
    Abstract: A head-up display and a multiview head-up display system provide a plurality of different views of a multiview image combined with a view of a physical environment to an eye box as a combined view. The head-up display includes a multibeam element-based display configured to provide the different views of the multiview image and an optical combiner configured to relay the different views to the eye box along with the view of the physical environment view. The multibeam element-based display includes an array of multibeam elements configured to provide a plurality of directional light beams having directions corresponding to respective view directions of the plurality of different views and an array of light valves configured to modulate the plurality of directional light beams to provide the multiview image.
    Type: Application
    Filed: June 13, 2020
    Publication date: October 1, 2020
    Inventor: David A. Fattal
  • Publication number: 20200310135
    Abstract: A near-eye display and a binocular near-eye display system provide a plurality of different views of a multiview image to different locations within an eye box to impart focus depth cues to a user. The near-eye display includes a multibeam element-based display configured to provide the different views and an optical system configured to relay the different views to the different locations within the eye box. The binocular near-eye display system includes a pair of the multibeam element-based displays and a binocular optical system configured to provide and relay a pair of multiview images as a stereoscopic image pair representing a three-dimensional (3D) scene to a corresponding pair of laterally displaced eye boxes.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventor: David A. Fattal
  • Patent number: 10788619
    Abstract: Dual light guide, grating-based backlighting redirects light guided in a first light guide in a first direction into a second light guide in a second direction of a grating-based backlight. A dual light guide, grating-based backlight includes the first light guide, the second light guide and a redirection coupler configured to redirect the guided light beam from the first light guide into the second light guide in the second direction. The dual light guide, grating-based backlight further includes a diffraction grating configured to diffractively couple out a portion of the redirected light beam from the second light guide as a coupled-out light beam directed away from a surface of the second light guide at a predetermined principal angular direction.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: September 29, 2020
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Publication number: 20200301165
    Abstract: A mode-switchable backlight and mode-switchable display employ a first planar backlight to emit broad-angle emitted light during a first mode and a second planar backlight to emit directional emitted light during a second mode. The second planar backlight includes a plate light guide and an array of multibeam elements configured to scatter out guided light from the light guide during a second mode as the directional emitted light including a plurality of directional light beams having principal angular directions corresponding to view directions of a multiview image. The mode-switchable display further includes a light valve array configured to modulate the broad-angle emitted light to provide a two-dimensional image during the first mode and to modulate the directional emitted light to provide a multiview image during the second mode.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 24, 2020
    Inventor: David A. Fattal
  • Publication number: 20200290622
    Abstract: Vehicle monitoring employs three-dimensional (3D) information in a region adjacent to a vehicle to visually highlight objects that are closer to the vehicle than a threshold distance. A vehicle monitoring system includes a 3D scanner to scan the region adjacent to the vehicle and provide a 3D model including a spatial configuration of objects located within the scanned region. The vehicle monitoring system further includes a 3D electronic display to display a portion of the scanned region using the 3D model and to visually highlight an object within the displayed portion that is located less than the threshold distance from the vehicle.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventor: David A. Fattal
  • Patent number: 10768357
    Abstract: A polarization-mixing light guide includes a plate light guide and a polarization retarder within the plate light guide. The light guide is to guide a beam of light at a non-zero propagation angle. The light beam includes a first polarization component and a second polarization component. The polarization retarder is to redistribute the first and second polarization components of the guided light beam into predetermined combinations of the polarization components. The light guide is to preferentially scatter out a portion of the guided light beam having the first polarization component. A three-dimensional (3-D) electronic display includes an array of multibeam diffraction gratings at a surface of the plate light guide to preferentially couple out the first polarization component of the guided light beam as a plurality of light beams having different principal angular directions.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: September 8, 2020
    Assignee: LEIA INC.
    Inventor: David A. Fattal