Patents Assigned to LEIA INC.
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Patent number: 12587627Abstract: Methods and system of multiview video rendering, preparing a multiview video cache, and real-time multiview video conversion employ video information having multiview frames corresponding to multiview video timestamps to generate views of a multiview frame using cache data entries of a multiview video cache corresponding to a target time stamp. The cache data entries may include a first cache data entry corresponding to a first multiview frame preceding the target timestamp and a second cache data entry corresponding to a second multiview frame following the target timestamp. The target timestamp for a particular multiview frame to be rendered may be based on a user input. The system may include a processor circuit and a memory that stores a plurality of instructions that, when executed by the processor circuit, cause the processor circuit to perform one or both of multiview video rendering and preparing a multiview video cache.Type: GrantFiled: July 27, 2022Date of Patent: March 24, 2026Assignee: LEIA Inc.Inventors: David A. Fattal, Suki Samra
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Patent number: 12567201Abstract: In multiview image generation and display, a computing device can synthesize view images of a multiview image of a scene from a color image and a depth map. Each view image can include color values at respective pixel locations. The computing device can render the view images of the multiview image on a multiview display. Synthesizing a view image can include, for a pixel location in the view image, the following operations. The computing device can cast a ray from the pixel location toward the scene in a direction corresponding to a view direction of the view image. The computing device can determine a ray intersection location at which the ray intersects a virtual surface specified by the depth map. The computing device can set a color value of the view image at the pixel location to correspond to a color of the color image at the ray intersection location.Type: GrantFiled: January 13, 2024Date of Patent: March 3, 2026Assignee: LEIA Inc.Inventor: Vadym Suprun
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Patent number: 12445592Abstract: A predictive head-tracking multiview display includes a multibeam backlight that provides a plurality of light beams having different principal angular directions corresponding to different view directions of a multiview image. A processor receives a plurality of provisional views of the multiview image. The provisional views correspond to the different view directions. The processor receives information about a predicted position of a user. The processor shifts the provisional views with respect to the view directions to form a plurality of shifted views that correspond to the different view directions. The shifted views are shifted by a shift value that varies as a function of the predicted position of the user and varies over a field of view of the multiview image. A light valve array modulates the plurality of light beams to provide the plurality of shifted views of the multiview image to the view directions as the multiview image.Type: GrantFiled: May 6, 2023Date of Patent: October 14, 2025Assignee: LEIA Inc.Inventors: David A. Fattal, George Shakula
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Patent number: 12418641Abstract: Systems and methods are directed to a camera system configured to capture a multiview image of an object along an arc. Each camera in the camera system may correspond to a common field of view. In addition, a computing system coupled to the camera system may calculate a target camera baseline based on a first value and a second value, and dynamically adjust an inter-camera capture distance to match the target camera baseline. The first value may indicate the common field of view and the second value may indicate a distance between the camera system and the object.Type: GrantFiled: January 16, 2024Date of Patent: September 16, 2025Assignee: LEIA Inc.Inventors: David A. Fattal, Selim Cayligil
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Patent number: 12345900Abstract: A time-multiplexed multiview backlight, display, and method of time-multiplexed multiview backlight operation provide one or both of enhanced spatial resolution and enhanced angular resolution using time-multiplexing. The time-multiplexed multiview backlight includes a light guide configured to guide light as time-multiplexed guided light having different directions during different time intervals and an array of multibeam elements configured to scatter the time-multiplexed guided light as directional light beams. A first set of multibeam elements is configured to selectively scatter out the time-multiplexed guided light having the first direction and a second set of multibeam elements of the multibeam element array is configured to selectively scatter out the time-multiplexed guided light having the second direction.Type: GrantFiled: December 7, 2021Date of Patent: July 1, 2025Assignee: LEIA Inc.Inventors: Ming Ma, David A. Fattal
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Patent number: 12326580Abstract: A multiview display and method employ an array of lenses to provide effective light sources from semi-collimated light. The multiview display includes a semi-collimated backlight configured to provide the semi-collimated light, an array of light valves arranged as multiview pixels, and an array of lenses disposed between the semi-collimated backlight and the array of lenses. Each lens of the array of lenses is configured to provide an effective light source at a focal plane of the lens to illuminate a corresponding multiview pixel.Type: GrantFiled: February 24, 2022Date of Patent: June 10, 2025Assignee: LEIA Inc.Inventors: Thomas Hoekman, David A. Fattal
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Patent number: 12316821Abstract: An adaptive background multiview image display system and method provides improved multiview image quality. Systems and methods may involve generating crosstalk data that reduces crosstalk between a first view of subject image and a second view of the subject image. The subject image may be a multiview image to be overlaid on a background image. A crosstalk violation may be detected in the subject image based on the crosstalk data. At least one of a color value or a brightness value of the background image is determined according to a degree of the crosstalk violation to generate the background image. The subject image may then be overlaid on the generated background image.Type: GrantFiled: March 15, 2023Date of Patent: May 27, 2025Assignee: LEIA Inc.Inventors: Daniel Geisler, David A. Fattal
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Patent number: 12313872Abstract: 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: GrantFiled: August 25, 2022Date of Patent: May 27, 2025Assignee: LEIA Inc.Inventors: David A. Fattal, Thomas Hoekman
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Patent number: 12253692Abstract: 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 principal angular directions corresponding to different view directions of the horizontal parallax multiview display. The plurality of directional light beams is modulated using an array of light valves to provide a multiview image having horizontal parallax. Further, the horizontal parallax multiview display employs a light control film having a slanted light control axis aligned with slanted multibeam columns of the slanted multibeam column plurality. The light control film is configured to control a view angle of the multiview image in a direction orthogonal to the horizontal parallax. The slanted multibeam columns may provide the multiview displays with a balanced resolution.Type: GrantFiled: August 2, 2021Date of Patent: March 18, 2025Assignee: LEIA Inc.Inventors: David A. Fattal, Ming Ma
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Patent number: 12216296Abstract: A multiview display employs an array of multibeam elements configured to provide directional light beams having different principal angular directions corresponding to different view directions of the multiview display. Moreover, the multiview display includes an array of light valves configured to modulate the directional light beams as a multiview image to be displayed by the multiview display, where a multiview pixel of the multiview display includes a set of light valves of the light valve array corresponding to a multibeam element of the multibeam element plurality and being configured to modulate directional light beams from the multibeam element. Furthermore, a shape of the multiview pixel is dynamically reconfigurable to provide the multiview image having a dynamic field of view (FOV). The FOV may be modified based on a monitored orientation of the multiview display, a monitored position of a user relative to the multiview display, or both.Type: GrantFiled: December 19, 2020Date of Patent: February 4, 2025Assignee: LEIA INC.Inventor: David A. Fattal
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Patent number: 12204137Abstract: A multiview backlight, multiview display, and method of multiview backlight operation include reflective 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 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. Each reflective sub-element protrudes from a guiding surface of the light guide by a respective protrusion distance. At least some of the protrusion distances can vary as a function of distance along a length of the light guide.Type: GrantFiled: October 25, 2023Date of Patent: January 21, 2025Assignee: LEIA INC.Inventors: David A. Fattal, Thomas Hoekman, Colton Bukowsky, Ming Ma
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Patent number: 12196983Abstract: A multiview display includes an array of light valves having rows of a repeating plurality of color sub-pixels and arranged as a plurality of multiview pixels configured to modulate directional light beams as color pixels of views of a multiview image. A first row of the repeating plurality of color sub-pixels is offset from a second row of the repeating plurality of color sub-pixels in a row direction by an integer multiple of a width of a color sub-pixel. The offset of the first and second rows is configured to provide corresponding color sub-pixels in adjacent multiview pixels having different colors to mitigate color fringing associated with the color pixel of the multiview image. The multiview display further includes a light control film configured to control a view angle of the multiview image.Type: GrantFiled: August 4, 2021Date of Patent: January 14, 2025Assignee: LEIA Inc.Inventors: David A. Fattal, Ming Ma
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Patent number: 12177414Abstract: A user-tracking multiview display and a user-tracking multiview display system selectively provide a primary set of views and a secondary view according to a location of a user determined by a both a relative motion of the user-tracking multiview display and a periodic user location measurement. The user-tracking multiview display includes a multibeam backlight configured to provide directional light beams corresponding to different view directions of a multiview image and a light valve array configured to modulate the directional light beams to provide a plurality of views including the primary view set and the secondary view. The user-tracking multiview display system further includes a user tracker configured to determine a position of a user using both a periodic user location measurement and relative motion of the user-tracking multiview display system.Type: GrantFiled: February 22, 2021Date of Patent: December 24, 2024Assignee: LEIA Inc.Inventor: David A. Fattal
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Patent number: 12164119Abstract: A multiview display and a method of multiview display operation employ an array of light valves having a repeating plurality of color sub-pixels and an array of multibeam emitters providing directional light beams. The array of light valves having the repeating plurality of color sub-pixels is configured to modulate the directional light beams as color pixels of views of a multiview image. A first multibeam emitter and a second multibeam emitter of the multibeam emitter array are offset from one another with respect to the array of light valves. The offset is configured to direct to a color pixel of the multiview image a modulated directional light beam from each of the first multibeam emitter and the second multibeam emitter having an equivalent angular direction relative to one another. The equivalent angular direction may mitigate color fringing within the color pixel.Type: GrantFiled: May 2, 2021Date of Patent: December 10, 2024Assignee: LEIA INC.Inventor: David A. Fattal
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Patent number: 12159372Abstract: A system and method of multiview style transfer apply a style transfer to individual views of a multiview image in a way that produces consistent results across all images. In some embodiments, the multiview style transfer includes receiving first and second images representative of first and second perspectives of a scene and first and second disparity maps corresponding to the first and second images, generating a first stylized image, generating a stylized shifted image based on the first stylized image and the first disparity map, generating a second stylized image based on a guided filter of the stylized shifted image and the second image, and generating a first and second stylized image based on the stylized shifted images and the disparity maps.Type: GrantFiled: July 31, 2022Date of Patent: December 3, 2024Assignee: LEIA Inc.Inventors: Nicolas Dahlquist, Saravana Gunaseelan, Puneet Kohli, Edward Li
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Patent number: 12140791Abstract: A multi-zone backlight and multi-zone multiview display with multiple zones selectively provide broad-angle emitted light corresponding to a two-dimensional (2D) image and directional emitted light corresponding to a multiview image to each zone of the multiple zones. The multi-zone backlight includes broad-angle backlight to provide the broad-angle emitted light and a multiview backlight to provide the directional emitted light. Each of the broad-angle backlight and the multiview backlight is divided into a first zone and a second zone that may be independently activated to provide the broad-angle emitted light and multiview emitted light, respectively. The multi-zone multiview display includes the broad-angle backlight and the multiview backlight and further includes an array of light valves configured to modulate the broad-angle emitted light as a two-dimensional image and the directional emitted light as a multiview image on a zone-by-zone basis.Type: GrantFiled: October 19, 2021Date of Patent: November 12, 2024Assignee: LEIA INC.Inventors: David A. Fattal, Thomas Hoekman
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Patent number: 12140777Abstract: 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: GrantFiled: December 12, 2022Date of Patent: November 12, 2024Assignee: LEIA INC.Inventors: David A. Fattal, Xuejian Li, Francesco Aieta
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Patent number: 12124073Abstract: Fabricating a diffractive backlight employs a universal grating and selects a portion of the universal grating using a reflective island to define a grating element, a reflective diffraction grating element of the diffractive backlight including the grating element and the reflective island. A method of fabricating a diffractive backlight includes forming the universal grating, forming the reflective island, and selecting a portion of the universal grating using the reflective island to define the grating element. The method of fabricating a diffractive backlight may include forming the reflective island on a light guide surface and forming the universal grating over the reflective island. Alternatively, the method of fabricating a diffractive backlight may include forming the universal grating on the light guide surface and forming the reflective island over the universal grating.Type: GrantFiled: October 24, 2021Date of Patent: October 22, 2024Assignee: LEIA Inc.Inventors: Thomas Hoekman, David A. Fattal, Ming Ma, Zhen Peng
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Patent number: 12117693Abstract: A multiview backlight, multiview display, and method employ arrays of active emitters and a diffuser to provide an effective active emitter from emitted light from each active emitter. The multiview backlight includes an array of active emitters and a diffuser configured to provide effective active emitters having a predetermined size that is between one quarter and two times a size of a light valve of the multiview display. The multiview display includes an array of effective active emitters including active emitters and a diffuser configured to provide output emitted light. The multiview display further includes an array of light valves configured to modulate output emitted light to provide a displayed image. A spacing between effective active emitters is an integer multiple of a spacing between light valves of the multiview display.Type: GrantFiled: May 4, 2023Date of Patent: October 15, 2024Assignee: LEIA Inc.Inventors: David A. Fattal, Thomas Hoekman, Ming Ma
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Patent number: 12111489Abstract: A multibeam backlight and multiview display employ a filling fraction of a diffraction grating to control diffractive scattering efficiency. The multibeam backlight includes a light guide configured to guide light and a plurality of multibeam elements, a multibeam element of the multibeam element plurality including a diffraction grating. The multibeam element is configured to diffractively scatter a portion of the guided light out of the light guide as directional light beams having different directions corresponding to different view directions of a multiview display. A filling fraction of diffractive features within the diffraction grating is configured to control a diffractive scattering efficiency of the multibeam element. The multiview display further includes an array of light valves configured to modulate the directional light beams to provide a multiview image. The filling fraction may be a ratio of diffractive features to filling features within the diffraction grating.Type: GrantFiled: April 9, 2022Date of Patent: October 8, 2024Assignee: LEIA Inc.Inventors: David A. Fattal, Joseph D. Lowney