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公开(公告)号：WO2020185264A1
公开(公告)日：2020-09-17
申请号：PCT/US2019/061882
申请日：2019-11-15
Applicant: LEIA INC.
Inventor： FATTAL, David A.
IPC: G02F1/13357 , G02F1/1335
Abstract: A mode-switchable backlight and privacy display provide narrow-angle emitted light during a first mode and broad-angle emitted light in a second mode, the broad-angle emitted light being a combination of the narrow-angle emitted light and bidirectional emitted light. The mode-switchable backlight includes a first directional backlight and a second directional backlight. The first directional backlight includes an array of narrow-angle emitters configured to provide the narrow-angle emitted light during both of the first mode and second mode, while the second directional backlight includes an array of bidirectional emitters configured to provide the bidirectional emitted light exclusively during the second mode. The mode-switchable privacy display includes an array of light valves configured to modulate the narrow-angle emitted light during the first mode and to modulate broad-angle emitted light during the second mode.
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公开(公告)号：WO2020154318A1
公开(公告)日：2020-07-30
申请号：PCT/US2020/014464
申请日：2020-01-21
Applicant: LEIA INC.
Inventor： FATTAL, David A. , HOEKMAN, Thomas
IPC: F21V8/00 , G02F1/13357 , G02F1/1335
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 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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83.发明申请
公开(公告)号：WO2020131106A1
公开(公告)日：2020-06-25
申请号：PCT/US2018/067177
申请日：2018-12-21
Applicant: LEIA INC.
Inventor： FATTAL, David A. , GEISLER, Daniel, Jr.
Abstract: A multiview display system employs a multiview display configured to provide a plurality of views representing a multiview image and a view-terminus indicator associated with a terminal view of the view plurality. The view-terminus indicator is configured to alert a user of the multiview display system to an angular terminus of the view plurality.
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84.发明申请
公开(公告)号：WO2019147276A1
公开(公告)日：2019-08-01
申请号：PCT/US2018/015617
申请日：2018-01-27
Applicant: LEIA INC.
Inventor： AIETA, Francesco , LI, Xuejian , HOEKMAN, Thomas , FATTAL, David A.
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.
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公开(公告)号：WO2019125394A1
公开(公告)日：2019-06-27
申请号：PCT/US2017/067131
申请日：2017-12-18
Applicant: LEIA INC.
Inventor： FATTAL, David A.
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.
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Patent Agency Ranking
公开(公告)号：WO2019066819A1
公开(公告)日：2019-04-04
申请号：PCT/US2017/053824
申请日：2017-09-27
Applicant: LEIA INC.
Inventor： FATTAL, David A.
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.
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公开(公告)号：WO2018236372A1
公开(公告)日：2018-12-27
申请号：PCT/US2017/038600
申请日：2017-06-21
Applicant: LEIA INC.
Inventor： FATTAL, David A. , LI, Xuejian , MA, Ming , VO, Sonny
Abstract: A multiview backlight and a multiview display employ a microprism multibeam element to emit a plurality of directional light beams having principal angular directions corresponding to view directions of the multiview display. The multiview backlight includes a light guide and the microprism multibeam element extending from a surface of the light guide. The microprism multibeam element has an input aperture configured to receive a portion of guided light and an output aperture configured to emit the plurality of directional light beams. The microprism multibeam element includes a microprism having an inclined sidewall configured to reflect the received guided light portion and provide the plurality of directional light beams. The multiview display includes the multiview backlight and an array of multiview pixels configured to provide different views of the multiview display from the plurality of directional light beams.
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公开(公告)号：WO2018226235A1
公开(公告)日：2018-12-13
申请号：PCT/US2017/036647
申请日：2017-06-08
Applicant: LEIA INC.
Inventor： FATTAL, David A. , MA, Ming
IPC: H01L33/60 , H01L33/50 , F21V8/00 , G02F1/1335
Abstract: A light source includes an optical emitter configured to emit light toward an output aperture of the light source. The light source further includes a partially reflective layer at the output aperture. The partially reflective layer is configured to receive the emitted light from the optical emitter and to reflect a portion of the received light as reflected light. The light source additionally includes a scattering medium located between the partially reflective layer and the optical emitter. The scattering medium is configured to scatter the reflected light as scattered light having a different direction from the reflected light. A portion of the scattered light is redirected toward the partially reflective layer as recycled light to be emitted from the light source. A multiview backlight that employs the light source is also provided, along with a method for operating the light source.
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公开(公告)号：WO2018182917A1
公开(公告)日：2018-10-04
申请号：PCT/US2018/020544
申请日：2018-03-01
Applicant: LEIA INC.
Inventor： FATTAL, David A.
Abstract: A directional backlight, backlit display and method of directional backlight operation employ diffraction grating to provide emitted light collectively scattered out by diffraction gratings having a uniform intensity and angular spread. The directional backlight 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 directional backlight further includes an array of diffraction gratings configured to configured to scatter out a portion of a guided light beam of the guided light beam plurality as emitted light having an intensity and an angular spread that is uniform across the light guide surface. The backlit display further includes an array of light valves configured to modulate the emitted light to provide a displayed image.
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公开(公告)号：WO2018182743A1
公开(公告)日：2018-10-04
申请号：PCT/US2017/025622
申请日：2017-03-31
Applicant: LEIA INC.
Inventor： FATTAL, David A. , MA, Ming , LI, Xuejian
IPC: G02B6/12
Abstract: A backlight and a multiview display employ a light guide having angle-preserving scattering feature and a tapered collimator. The angle-preserving scattering feature is configured to scatter a portion of guided light out of the light guide as emitted light. The tapered collimator is configured to collimate light provided by a light source as collimated light and to communicate the collimated light to the light guide to guided as the guided light. The collimated light has a collimation factor configured to provide a predetermined angular spread of the guided light, the collimation factor being a function of a taper of the tapered collimator. The multiview display includes multiview pixels that include view pixels as well as the angle-preserving scattering feature that includes a multibeam element having a size that is comparable to a size of a view pixel.
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