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: 11650359
    Abstract: A multicolor static multiview display and method of multicolor static multiview display operation provide a color static multiview image using diffractive gratings to diffractively scatter light from guided light beams having a selectable color and different radial directions. The multicolor static multiview display includes a light guide configured to guide plurality of guided light beams and a multicolor light source configured to provide the guided light beam plurality having the selectable color and the different radial directions. The multicolor static multiview display further includes a plurality of diffraction gratings configured to provide from a portion of the guided light beams directional light beams having a color, intensities, and principal angular directions corresponding to color view pixels of the color static multiview image.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: May 16, 2023
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 11635619
    Abstract: A backlit transparent display and a transparent display system provide a displayed image while enabling a background scene to be visible through the display. The backlit transparent display includes a light guide, a plurality of scattering elements, and an array of light valves configured to modulate emitted light scattered from the light guide to provide modulated emitted light representing a displayed image. Transparency of the backlit transparent display is configured to enable the background scene to be visible through the backlit transparent display. The transparent display system includes the array of light valves and a transparent backlight. The transparent display system is configured to provide the displayed image as superimposed on the background scene visible through the transparent display system.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: April 25, 2023
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Publication number: 20230107214
    Abstract: A static multiview display and method of static multiview display operation provide a static multiview image using diffractive gratings to that encode pixels of the static multiview image. The static multiview display includes a light guide configured to guide plurality of guided light beams and a light source configured to provide the guided light beam plurality having the different radial directions. The static multiview display further includes a plurality of diffraction gratings configured to provide different individual directional light beams from a portion of the radially directed guided light beams. The different individual directional light beams having different intensities and directions corresponding to and representing different view pixels of the static multiview image.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 6, 2023
    Inventors: David A. Fattal, Xuejian Li, Francesco Aieta
  • Publication number: 20220413203
    Abstract: A static-image augmented privacy display, mode-switchable privacy display system, and method provide a private image to a first view zone and a static image to a second view zone. The static-image augmented privacy display includes a privacy backlight configured to provide directional emitted light to the first view zone and an array of light valves configured to modulate the directional emitted light to provide a private image within the first view zone. The static-image augmented privacy display also includes a static display layer configured to provide a static image in a second view zone. The mode-switchable privacy display includes a broad-angle backlight configured to provide broad-angle emitted light to both a first view zone and a second view zone during a shared mode, a shared image being provided by modulation of the broad-angle emitted light using the light valve array.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 29, 2022
    Inventors: David A. Fattal, Thomas Hoekman
  • Patent number: 11531152
    Abstract: Time-multiplexed backlighting includes a time-multiplexed light source to provide a light beam having a first non-zero propagation angle during a first time interval and a second non-zero propagation angle during a second time interval. A time-multiplexed backlight includes a light guide configured to guide the light beam and a diffraction grating configured to coupled out a portion of the guided light beam with a different principal angular direction in each of the first time interval and the second time interval. A multiview display includes the time-multiplexed light source and a multibeam backlight to provide coupled-out light beams during each of the first and second time intervals, wherein the principal angular directions of the coupled-out light beams correspond to different view directions of the multiview display.
    Type: Grant
    Filed: March 7, 2021
    Date of Patent: December 20, 2022
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 11526008
    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: Grant
    Filed: June 13, 2020
    Date of Patent: December 13, 2022
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Publication number: 20220392136
    Abstract: An animated static display, animated static display system, and method provide a plurality of static images. The animated static display includes a plurality of directional scattering elements arranged across a light guide and configured to scatter out light provided from different light sources and guided by the light guide as directional light beams having different directions corresponding to the different light sources. The animated static display also includes a barrier layer having different sets of apertures configured to pass directional light beams having the different directions to provide corresponding different static images of the static image plurality. The animated static display system further includes a mode controller configured to selectively activate the different light sources to provide an animated image comprising the different static images.
    Type: Application
    Filed: August 18, 2022
    Publication date: December 8, 2022
    Inventor: David A. Fattal
  • Publication number: 20220357500
    Abstract: A multiview backlight, multiview display, and method of multiview backlight operation include reflective multibeam elements having one or more curved reflective surfaces configured to provide emitted light having directional light beams with directions corresponding to view directions of a multiview image. The multiview backlight includes a light guide configured to guide light and an array of the reflective multibeam elements. Each reflective multibeam element includes a plurality of reflective sub-elements and is configured to reflectively scatter out a portion of the guided light as the emitted light. The multiview display includes the multiview backlight and an array of light valves to modulate the directional light beams to provide the multiview image. A reflective sub-element of the reflective sub-element plurality includes a curved reflective surface, a surface curvature of the curved reflective surface being in a plane parallel to a guiding surface of the light guide.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 10, 2022
    Inventors: David A. Fattal, Thomas Hoekman, Colton Bukowsky, Ming Ma
  • Publication number: 20220350072
    Abstract: A micro-slit scattering element based backlight, a multiview display, and a method of backlight operation include reflective micro-slit scattering elements configured to provide emitted light having a predetermined light exclusion zone. The micro-slit scattering element based backlight includes a light guide configured to guide light and a plurality of the reflective micro-slit scattering elements having sloped reflective sidewalls configured to reflectively scatter out the guided light as the emitted light. The sloped reflective sidewalls of the reflective micro-slit scattering elements are configured to provide the predetermined light exclusion zone of the emitted light. The multiview display includes the reflective micro-slit scattering elements arranged as an array of micro-slit multibeam elements. The multiview display also includes an array of light valves to modulate the directional light beams to provide the multiview image, except within the predetermined light exclusion zone.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 3, 2022
    Inventors: David A. Fattal, Thomas Hoekman, Colton Bukowsky, Ming Ma
  • Publication number: 20220350071
    Abstract: A reflective microprism scattering element based backlight, a multiview display, and a method backlight operation include reflective microprism scattering elements configured to provide emitted light having a predetermined light exclusion zone. The reflective microprism scattering element based backlight includes a light guide configured to guide light and a plurality of the reflective microprism scattering elements having sloped reflective sidewalls configured to reflectively scatter out the guided light as the emitted light. The sloped reflective sidewalls of the reflective microprism scattering elements are configured to provide the predetermined light exclusion zone of the emitted light. The multiview display includes the reflective microprism scattering elements arranged as an array of reflective microprism multibeam elements.
    Type: Application
    Filed: July 20, 2022
    Publication date: November 3, 2022
    Inventors: David A. Fattal, Thomas Hoekman, Colton Bukowsky, Ming Ma
  • Publication number: 20220334387
    Abstract: A multi-user multiview display, system, and method selectively provide either a multiview image when a group of users is within a predefined viewing zone or a two-dimensional (2D) image when the group of users is outside of the predefined viewing zone. The multi-user multiview display includes a broad-angle backlight configured to provide broad-angle emitted light and a multiview backlight configured to directional emitted light. The multi-user multiview display further includes an array of light valves configured to modulate the broad-angle emitted light to provide the 2D image and to modulate the directional emitted light to provide the multiview image within a predefined viewing zone. A head tracker may be employed to track users of the group of user to determine whether or not to provide the multiview image or the 2D image based on a location of the group of users.
    Type: Application
    Filed: July 5, 2022
    Publication date: October 20, 2022
    Inventor: David A. Fattal
  • Patent number: 11467421
    Abstract: A multi-directional backlight and a multi-user multiview display provide emitted light and associated multiview images having different mutually exclusive angular ranges and different user-specific view zones. The multi-directional backlight includes first and second multiview backlights, each of which includes multibeam elements configured to provide emitted light having directional light beams with directions corresponding to view directions of a respective multiview images. The emitted light provided by the first multiview backlight has a first angular range that is mutually exclusive of a second angular range of emitted light provided by the second multiview backlight, at respective first and second convergence distances. The multi-user multiview display includes a first multiview display configured to provide a first multiview image to a first user in a first view zone and a second multiview display configured to provide a second multiview image to a second user in a second view zone.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: October 11, 2022
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Thomas Hoekman
  • Patent number: 11448896
    Abstract: A multilayer static multiview display and method of multilayer multiview display operation provide a plurality of multiview images using diffractive scattering of light from guided light beams having different radial directions. The static multiview display includes a first multiview display layer configured to emit directional light beams representing a first multiview image by diffractive scattering light from a radial pattern of guided light beams within the first multiview display layer. The static multiview display further includes a second multiview display layer configured to emit directional light beams representing a second static multiview image by diffractive scattering light from a radial pattern of guided light beams within the second multiview display layer. The provided plurality of multiview images may include a composite color multiview image, a static multiview image, or an animated or quasi-static multiview image.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: September 20, 2022
    Assignee: LEIA INC.
    Inventors: David A. Fattal, Xuejian Li, Francesco Aieta
  • Patent number: 11442221
    Abstract: A method of aligning a multiview backlight with a light valve array of a multiview display employs an alignment pattern that includes unit cells spaced apart from one another and having view blocks corresponding to different views of the multiview display. The method of aligning includes establishing the alignment pattern on the light valve array, illuminating the light valve array using the multiview backlight to display the alignment pattern, and adjusting a relative position of the multiview backlight and the light valve array to minimize an error measure of the unit cells within the displayed alignment pattern. A multiview display backlight alignment system includes the multiview display and a positioning stage configured to adjust the relative position to minimize the error measure. An automated multiview display backlight alignment system further includes a feedback controller, the positioning stage being motorized.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: September 13, 2022
    Assignee: LEIA INC.
    Inventors: Thomas Hoekman, David A. Fattal
  • Patent number: 11428860
    Abstract: A static multiview display and method of static multiview display operation provide a static multiview image using diffractive gratings to diffractively scatter light from guided light beams having different radial directions provided by a horizontal diffuser. The static multiview display includes a light guide configured to guide the light beams; the horizontal diffuser configured to provide the guided light beams with the different radial directions using light from a directional light source; and a plurality of diffraction gratings configured to scatter out light from the guided light beam plurality as directional light beams representing the static multiview image. The method of static display operation includes providing and diffusing directional light to provide guided light beams having different radial directions, and further scattering out light from the guided light beam as directional light beams representing the static multiview image.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: August 30, 2022
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Publication number: 20220260833
    Abstract: A backlit transparent display and a transparent display system provide a displayed image while enabling a background scene to be visible through the display. The backlit transparent display includes a light guide, a plurality of scattering elements, and an array of light valves configured to modulate emitted light scattered from the light guide to provide modulated emitted light representing a displayed image. Transparency of the backlit transparent display is configured to enable the background scene to be visible through the backlit transparent display. The transparent display system includes the array of light valves and a transparent backlight. The transparent display system is configured to provide the displayed image as superimposed on the background scene visible through the transparent display system.
    Type: Application
    Filed: May 2, 2022
    Publication date: August 18, 2022
    Inventor: David A. Fattal
  • Patent number: 11418775
    Abstract: A multiview display includes a multiview backlight configured to emit directional light beams configured to converge at points within a convergence plane, and an array of light valves configured to modulate the directional light beams at the convergence plane. A distance between the multiview backlight and the light valve array is configured to be adjustable to shift a corresponding location of the convergence plane relative to the multiview display.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: August 16, 2022
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Publication number: 20220244447
    Abstract: A multiview backlight, multiview display, and method of multiview backlight operation include micro-slit multibeam elements configured to provide emitted light having directional light beams with directions corresponding to view directions of a multiview image. The multiview backlight includes a light guide configured to guide light and an array of the micro-slit multibeam elements, each micro-slit multibeam element including a plurality of micro-slit sub-elements and being configured to reflectively scatter out a portion of the guided light as the emitted light. Each micro-slit sub-element of the micro-slit sub-element plurality includes a sloped reflective sidewall having a slope angle tilted away from the propagation direction of the guided light. The multiview display includes the multiview backlight and an array of light valves to modulate the directional light beams to provide the multiview image.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 4, 2022
    Inventors: David A. Fattal, Thomas Hoekman, Colton Bukowsky, Ming Ma
  • Publication number: 20220244449
    Abstract: A multibeam backlight and multiview display employ a multibeam element having a shaped edge with a shape configured to disperse spurious diffraction components. The multibeam backlight includes a light guide configured to guide light in a propagation direction and a plurality of multibeam elements spaced apart from one another across the light guide, the multibeam element plurality being configured to scatter out the guided light as emitted light. A multibeam element of the multibeam element plurality includes the shaped edge oriented orthogonal to the propagation direction. The shape of the shaped edge is configured to disperse spurious diffraction components in the emitted light associated with an interaction between the guided light and the multibeam element. The multiview display includes a light valve array configured to modulate the emitted light as a multiview image having a plurality of views in a similar plurality of different view directions.
    Type: Application
    Filed: April 23, 2022
    Publication date: August 4, 2022
    Inventors: David A. Fattal, Joseph D. Lowney
  • Patent number: 11402689
    Abstract: A mixed-format backlight and display employ a multiview zone to provide directional emitted light corresponding to a multiview portion of a mixed-format displayed image and a two-dimensional (2D) zone to provide broad-angle emitted light corresponding to a 2D portion of the mixed-format displayed image. A size of a multibeam emitter of the multiview zone is comparable to a size of a light valve of the mixed-format display.
    Type: Grant
    Filed: December 26, 2020
    Date of Patent: August 2, 2022
    Assignee: LEIA INC.
    Inventor: David A. Fattal