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1.发明申请公开(公告)号：US20220357500A1
公开(公告)日：2022-11-10
申请号：US17868623
申请日：2022-07-19
申请人： LEIA INC.
发明人： David A. Fattal , Thomas Hoekman , Colton Bukowsky , Ming Ma
摘要： 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.
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公开(公告)号：US11327337B2
公开(公告)日：2022-05-10
申请号：US16894234
申请日：2020-06-05
申请人： LEIA INC.
发明人： David A. Fattal
摘要： 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.
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公开(公告)号：US11320578B2
公开(公告)日：2022-05-03
申请号：US17352331
申请日：2021-06-20
申请人： LEIA INC.
摘要： A multiview display, system and method includes an array of light valves having 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, and an array of multibeam emitters configured to provide the directional light beams. A location of a multiview pixel relative to a location of color sub-pixels is configured to be shifted as a function of a position of a user of the multiview display to provide dynamic color sub-pixel remapping.
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公开(公告)号：US11307344B2
公开(公告)日：2022-04-19
申请号：US16579751
申请日：2019-09-23
申请人： LEIA INC.
发明人： David A. Fattal , Andre Krebbers
摘要： A dual view zone backlight and dual-mode display employ a first backlight region to provide directional emitted light toward a first view zone and a second backlight region to provide broad-angle emitted light toward the first and a second view zone in a first mode. The dual-mode display includes a second backlight to provide broad-angle light toward both the first view zone and the second view zone in a second mode.
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公开(公告)号：US20210333570A1
公开(公告)日：2021-10-28
申请号：US17370989
申请日：2021-07-08
申请人： LEIA INC.
发明人： David A. Fattal , Thomas Hoekman
摘要： 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.
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6.发明申请公开(公告)号：US20210294017A1
公开(公告)日：2021-09-23
申请号：US17336206
申请日：2021-06-01
申请人： LEIA INC.
发明人： David A. Fattal
摘要： 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.
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公开(公告)号：US20210255476A1
公开(公告)日：2021-08-19
申请号：US17246688
申请日：2021-05-02
申请人： LEIA INC.
发明人： David A. Fattal
摘要： 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.
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公开(公告)号：US20210239895A1
公开(公告)日：2021-08-05
申请号：US17237980
申请日：2021-04-22
申请人： LEIA INC.
发明人： David A. Fattal , Ming Ma
IPC分类号： F21V8/00
摘要： Multiview backlighting having a color-tailored emission pattern provides directional light beams corresponding to a plurality of different views of a multiview image. A multiview backlight includes a light guide configured to guide light as guided light and a color-tailored multibeam element. The color-tailored multibeam element is configured to provide emitted light having the color-tailored emission pattern from the guided light. The emitted light includes a plurality of directional light beams having different principal angular directions corresponding to respective different view directions of a multiview display. The color-tailored emission pattern corresponds to an arrangement of color sub-pixels of a view pixel in the multiview display.
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9.发明申请公开(公告)号：US20210157160A1
公开(公告)日：2021-05-27
申请号：US17168108
申请日：2021-02-04
申请人： LEIA INC.
发明人： Xuejian Li , Ming Ma , David A. Fattal
摘要： 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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公开(公告)号：US20210149213A1
公开(公告)日：2021-05-20
申请号：US17128099
申请日：2020-12-19
申请人： LEIA INC.
发明人： David A. Fattal
摘要： 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.
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