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公开(公告)号：CA3085870A1
公开(公告)日：2019-06-27
申请号：CA3085870
申请日：2017-12-21
Applicant: LEIA INC
Inventor： FATTAL DAVID A , MA MING , LI XUEJIAN
IPC: F21V8/00
Abstract: A mode-selectable backlight and privacy display employ directional scattering features to provide emitted light. The mode-selectable backlight includes a light guide, a first directional scattering feature to provide broad-angle emitted light from guided light having a first propagation direction within the light guide during a public mode, and a second directional scattering feature to provide second light from guided light having a second propagation direction within the light guide during a privacy mode. The directional emitted light the provided during the privacy mode is directed into a viewbox. The mode-selectable privacy display further includes light sources configured to provide the guided light having the first and second propagation directions along with an array of light valves configured to modulate the broad-angle emitted light as a public image and the directional emitted light as a private image visible within the viewbox.
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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
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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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
Inventor： FATTAL DAVID A , MA MING
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.
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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
Inventor： LI XUEJIAN , MA MING , FATTAL DAVID A
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.
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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
Inventor： FATTAL DAVID A , MA MING , LI XUEJIAN
IPC: G02B27/42
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.
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Patent Agency Ranking
公开(公告)号：CA3070560C
公开(公告)日：2022-05-24
申请号：CA3070560
申请日：2017-07-21
Applicant: LEIA INC
Inventor： MA MING , FATTAL DAVID A , AIETA FRANCESCO
IPC: F21V8/00 , G02F1/1335
Abstract: A multiview backlight and a multiview display employ a microlens to adjust directional light beams to have directions corresponding to respective different view directions of the multiview display. The multiview backlight includes a light guide configured to guide light as guided light, a multibeam element configured to scatter from the light guide a portion of the guided light as a plurality of directional light beams, and the microlens configured to adjust directions of the directional light beams. The multiview display further includes a multiview pixel configured to modulate the plurality of directional light beams and provide a plurality of different views of the multiview display, the microlens being between the multibeam element and the multiview pixel.
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公开(公告)号：CA3060435C
公开(公告)日：2021-12-28
申请号：CA3060435
申请日：2018-05-10
Applicant: LEIA INC
Inventor： FATTAL DAVID A , MA MING , LI XUEJIAN
Abstract: A multiview backlight includes a first array active emitters configured to provide a first plurality of directional light beams and a second array of active emitters configured to provide a second plurality of directional light beams. The second array of active emitters is interleaved between active emitters of the first array of active emitters. Further, directional light beams of each of the first and second directional light beam pluralities have directions corresponding to view directions of a multiview display. A multiview display further includes an array of light valves configured to modulate the directional light beams to display a multiview image. An image resolution of the multiview image is configured to be dynamically selectable according to operational mode
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公开(公告)号：CA3027156C
公开(公告)日：2021-05-25
申请号：CA3027156
申请日：2016-07-26
Applicant: LEIA INC
Inventor： LI XUEJIAN , MA MING , FATTAL DAVID A
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.
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公开(公告)号：CA3035801C
公开(公告)日：2021-01-12
申请号：CA3035801
申请日：2017-10-04
Applicant: LEIA INC
Inventor： FATTAL DAVID A , MA MING , LI XUEJIAN
IPC: F21V8/00 , G02F1/1335
Abstract: A polarized backlight employs a light source configured to provide polarized light and a light guide to guide the polarized light. A polarization-preserving scattering feature optically coupled to the light guide is configured to scatter a portion of the guided polarized light out of the light guide as emitted polarized light. A polarization of the emitted polarized light is determined by a polarization of the guided polarized light.
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公开(公告)号：CA3044193C
公开(公告)日：2020-12-22
申请号：CA3044193
申请日：2016-12-28
Applicant: LEIA INC
Inventor： FATTAL DAVID A , MA MING
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.
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