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公开(公告)号：US20250071252A1
公开(公告)日：2025-02-27
申请号：US18724875
申请日：2022-07-27
Applicant: LEIA Inc.
Inventor： David A. Fattal , Suki Samra
IPC: H04N13/282 , H04N13/189 , H04N13/194
Abstract: 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.
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公开(公告)号：US20250060611A1
公开(公告)日：2025-02-20
申请号：US18720449
申请日：2022-02-24
Applicant: LEIA Inc.
Inventor： Thomas Hoekman , David A. Fattal
IPC: G02B30/33 , F21V8/00 , G02B3/00 , H04N13/32 , H04N13/351
Abstract: 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.
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公开(公告)号：US12177414B2
公开(公告)日：2024-12-24
申请号：US17182054
申请日：2021-02-22
Applicant: LEIA INC.
Inventor： David A. Fattal
IPC: H04N13/366 , F21V8/00 , G02B30/33
Abstract: 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.
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公开(公告)号：US12140777B2
公开(公告)日：2024-11-12
申请号：US18079187
申请日：2022-12-12
Applicant: LEIA INC.
Inventor： David A. Fattal , Xuejian Li , Francesco Aieta
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.
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5.发明授权公开(公告)号：US12078816B2
公开(公告)日：2024-09-03
申请号：US17168108
申请日：2021-02-04
Applicant: LEIA INC.
Inventor： Xuejian Li , Ming Ma , David A. Fattal
CPC classification number: G02B27/30 , G02B5/0252 , G02B27/44
Abstract: A grating collimator and backlight system provide collimated light to illuminate a backlight. The grating collimator includes a light guide configured to guide light as guided light and a light-recycling light source configured to provide light to the light guide and to recycle light received from the light guide. The grating collimator further includes a diffraction grating coupler configured to diffractively redirect the provided light into the light guide as the guided light. The backlight system includes the grating collimator configured to provide collimated output light and the backlight configured to receive the collimated output light. The backlight may be multiview backlight.
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Patent Agency Ranking
公开(公告)号：US12072577B2
公开(公告)日：2024-08-27
申请号：US18142901
申请日：2023-05-03
Applicant: LEIA INC.
Inventor： David A. Fattal , Thomas Hoekman , Ming Ma
IPC: G02F1/13357 , F21V8/00 , G02B30/33 , G09G3/3208 , G09G3/34 , H04N13/32 , H04N13/349 , H04N13/351
CPC classification number: G02F1/133606 , G02B6/0073 , G02B30/33 , G09G3/3208 , G09G3/3426 , H04N13/32 , H04N13/349 , H04N13/351 , G09G2320/028
Abstract: A multiview backlight, multiview display, and method employ arrays of active emitters arranged in columns to provide directional light beams having directions corresponding to view directions of a multiview display. The multiview backlight includes a first array of active emitters arranged in columns and configured to provide a first plurality of directional light beams and a second array of active emitters arranged in columns and configured to provide a second plurality of directional light beams. Columns of the second active emitter array are disposed between and alternate with the columns of the first active emitter array. The multiview display further includes an array of light valves configured to modulate the directional light beams to display a multiview image. The view directions of the multiview display are in a plane that crosses the columns of first and second active emitter arrays.
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公开(公告)号：US20240248324A1
公开(公告)日：2024-07-25
申请号：US18414370
申请日：2024-01-16
Applicant: LEIA INC.
Inventor： Yuanrui Li , David A. Fattal
Abstract: A static color multiview display and method provide a static color multiview image using color-selective diffractive gratings configured to emit directional light beams that encode color view pixels of the static color multiview image. The static color multiview display includes a light guide configured to guide plurality of guided light beams having different radial directions and a light source configured to provide polychromatic light to be guided as the guided light beam plurality. The static color multiview display further includes a plurality of diffraction gratings configured to a scatter out a plurality of directional light beams that encode the color view pixels, each diffraction grating being configured to scatter out from one of the guided light beams a directional light beam having a predetermined color, intensity, and direction corresponding to a color, intensity, and view direction of a color view pixel of the static color multiview image.
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公开(公告)号：US12032178B2
公开(公告)日：2024-07-09
申请号：US17234495
申请日：2021-04-19
Applicant: LEIA INC.
Inventor： David A. Fattal , Joseph D. Lowney , Thomas Hoekman
CPC classification number: G02B30/33 , G02B6/0051 , H04N9/3197
Abstract: A multiview backlight and multiview display employ an optical mask element having a first portion and a laterally displaced second portion to mitigate Moiré associated with the optical mask element. The multiview backlight includes an array of multibeam unit cells distributed across a light guide. Each multibeam unit cell has a multibeam element configured to scatter out a portion of guided light as a plurality of directional light beams having different directions corresponding to different views of the multiview display. Each multibeam unit cell further includes an optical mask element having the first portion aligned and co-extensive with the multibeam element and the second portion laterally displaced within the multibeam unit cell from the first portion. One or both of the lateral displacement and an overall size of the optical mask element is configured to mitigate Moiréassociated with the optical mask element.
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公开(公告)号：US11988863B2
公开(公告)日：2024-05-21
申请号：US17727735
申请日：2022-04-23
Applicant: LEIA INC.
Inventor： David A. Fattal , Joseph D. Lowney
IPC: F21V8/00
CPC classification number: G02B6/0058 , G02B6/0055
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.
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公开(公告)号：US11906758B2
公开(公告)日：2024-02-20
申请号：US17678992
申请日：2022-02-23
Applicant: LEIA INC.
Inventor： David A. Fattal , Thomas Hoekman
IPC: G02B30/33 , H04N13/351 , G02B5/02
CPC classification number: G02B30/33 , G02B5/0252 , G02B5/0278 , H04N13/351
Abstract: A multiview backlight and display employ diffusion of directional light beams to provide an image of color regions of a color-tailored multibeam element having a size comparable to a size of the color-tailored multibeam element. The multiview backlight includes an array of color-tailored multibeam elements configured to provide the directional light beams and an optical diffuser configured to spread out directional light beams to provide the color region image. The multiview display includes an array of the color-tailored multibeam elements and the optical diffuser. The multiview display further includes an array of light valves configured to modulate the directional light beams as a multiview image.
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