UNILATERAL BACKLIGHT, MULTIVIEW DISPLAY, AND METHOD EMPLOYING SLANTED DIFFRACTION GRATINGS

    公开(公告)号:CA3055533A1

    公开(公告)日:2018-10-11

    申请号:CA3055533

    申请日:2018-03-01

    Applicant: LEIA INC

    Abstract: A unilateral backlight and a unilateral multiview display employ an array of unilateral diffractive elements configured to provide directional light beams having a unilateral direction. A unilateral diffractive element of the unilateral diffractive element array comprises a slanted diffraction grating configured to provide a directional light beam by diffractive scattering of light guided in a light guide. The unilateral multiview display further includes light valves configured to modulate a plurality of directional light beams as multiview image having the unilateral direction.

    BACKLIGHT, MULTIVIEW DISPLAY AND METHOD EMPLOYING TAPERED COLLIMATOR

    公开(公告)号:CA3053760A1

    公开(公告)日:2018-10-04

    申请号:CA3053760

    申请日:2017-03-31

    Applicant: LEIA INC

    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.

    MULTIVIEW BACKLIGHTING EMPLOYING PLASMONIC MULTIBEAM ELEMENTS

    公开(公告)号:CA3045328A1

    公开(公告)日:2018-08-02

    申请号:CA3045328

    申请日:2017-01-30

    Applicant: LEIA INC

    Abstract: Multiview backlighting employs a plasmonic multibeam element having a color-tailored emission pattern to provide 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 plasmonic multibeam element. The plasmonic multibeam element includes a plasmonic material and is configured to provide emitted light having a color-tailored emission pattern from the guided light. The emitted light including a plurality of directional light beams having different principal angular directions corresponding to respective different view directions of a multiview display and the color-tailored emission pattern corresponds to an arrangement of color sub-pixels of a view pixel in the multiview display.

    MULTIVIEW BACKLIGHTING EMPLOYING FLUORESCENT MULTIBEAM ELEMENTS

    公开(公告)号:CA3044193A1

    公开(公告)日:2018-07-05

    申请号:CA3044193

    申请日:2016-12-28

    Applicant: LEIA INC

    Abstract: Multiview backlighting employs a fluorescent multibeam element having a color-tailored emission pattern to provide 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 fluorescent multibeam element. The fluorescent multibeam element includes a fluorescent material and is configured to provide emitted light having a color-tailor emission pattern from the guided light. The emitted light including a plurality of directional light beams having different principal angular directions corresponding to respective different view directions of a multiview display and the color-tailored emission pattern corresponds to an arrangement of color sub-pixels of a view pixel in the multiview display.

    BAR COLLIMATOR, BACKLIGHT SYSTEM AND METHOD

    公开(公告)号:CA3027156A1

    公开(公告)日:2018-02-01

    申请号:CA3027156

    申请日:2016-07-26

    Applicant: LEIA INC

    Abstract: A bar collimator and a backlight system employ diffractive coupling to provide a collimated source of illumination to a backlight. The bar collimator includes a light guide and a diffraction grating disposed on a side of the light guide. The light guide is configured to guide light received from a light source as guided light. The diffraction grating is configured to diffractively couple out a portion of the guided light and to direct the diffractively coupled-out portion toward an input of a backlight as a collimated light having an extent corresponding to a length of the backlight input. A backlight system includes the bar collimator and further includes a light source and a backlight adjacent to the light guide of the bar collimator, the backlight being configured to receive collimated light from a diffraction grating of the bar collimator.

    MULTIBEAM ELEMENT-BASED BACKLIGHT AND DISPLAY USING SAME

    公开(公告)号:CA3007486A1

    公开(公告)日:2017-08-03

    申请号:CA3007486

    申请日:2016-06-08

    Applicant: LEIA INC

    Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a plurality of light beams having different principal angular directions corresponding to different view directions of the multiview display. The display includes multiview pixels that include sub-pixels. A size of the multibeam element is comparable to a size of a sub-pixel in a multiview pixel of the multiview display.

    MULTIBEAM DIFFRACTION GRATING-BASED HEAD-UP DISPLAY

    公开(公告)号:CA3006560A1

    公开(公告)日:2017-07-20

    申请号:CA3006560

    申请日:2016-01-16

    Applicant: LEIA INC

    Inventor: FATTAL DAVID A

    Abstract: A head-up display and a three-dimensional (3D) head-up display system provide a plurality of different views of an image combined with a view of a physical environment to an eye box as a combined image to be viewed by a user. The head-up display includes a multibeam diffraction grating-based display configured to provide the different views and an optical combiner configured to relay the different views to the eye box along with the physical environment view. The different views provided by the 3D head-up display system represent different perspective views of a 3D image.

    MULTIBEAM DIFFRACTION GRATING-BASED NEAR-EYE DISPLAY

    公开(公告)号:CA2994231A1

    公开(公告)日:2017-04-20

    申请号:CA2994231

    申请日:2016-01-16

    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 an image to different locations within an eye box to impart focus depth cues to a user. The near-eye display includes a multibeam diffraction grating-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 diffraction grating-based displays and a binocular optical system configured to provide and relay a stereoscopic image pair representing a three-dimensional (3D) scene to a corresponding pair of laterally displaced eye boxes.

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