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1.发明专利
公开(公告)号：CA3086336C
公开(公告)日：2022-08-16
申请号：CA3086336
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：CA3061308C
公开(公告)日：2021-11-30
申请号：CA3061308
申请日：2017-05-11
Applicant: LEIA INC
Inventor： FATTAL DAVID A , MA MING , LI XUEJIAN
IPC: G02B30/20 , G02F1/13357 , G02F1/1677
Abstract: A multiview backlight and a multiview display employ a microstructured 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 microstructured multibeam element adjacent and external to a surface of the light guide. The microstructured multibeam element has an input aperture configured to receive a portion of guided light from the light guide and an output aperture configured to emit the plurality of directional light beams. The microstructured multibeam element comprises a microstructure having an interior surface configured to reflect the received guided light portion to provide the plurality of directional light beams at the output aperture. The multiview display includes the multiview backlight and an array of multiview pixels configured to provide different views of the multiview display.
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公开(公告)号：CA3035787C
公开(公告)日：2021-01-12
申请号：CA3035787
申请日：2017-09-28
Applicant: LEIA INC
Inventor： FATTAL DAVID A , MA MING , LI XUEJIAN
IPC: F21V8/00
Abstract: A mode-selectable backlight and display employ a plurality of directional scattering features to provide emitted light. The mode-selectable backlight includes a light guide, a first directional scattering feature to provide first emitted light from guided light having a first propagation direction within the light guide in a first operational mode, and a second directional scattering feature to provide second light from guided light having a second propagation direction within the light guide in a second operational mode. The second emitted light comprises a plurality of directional light beams having different principal angular directions from one another and the first propagation direction differing from the second propagation direction. The mode-selectable display further includes a plurality of light sources to provide the guided light and an array of light valves configured to modulate the emitted light as a displayed image.
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公开(公告)号：CA3007486C
公开(公告)日：2020-07-28
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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公开(公告)号：CA3089955A1
公开(公告)日：2019-09-06
申请号：CA3089955
申请日：2018-03-01
Applicant: LEIA INC
Inventor： LI XUEJIAN , FATTAL DAVID A , AIETA FRANCESCO , MA MING
Abstract: A static multiview display and method employ an array of diffraction gratings to provide a multiview image having a direction that is a function of both color and a propagation angle of a collimated guided light beam. The static multiview display includes a light guide configured to guide light in a longitudinal direction and a light source configured to provide the collimated guided light beam, the propagation angle within the light guide being determined by a longitudinal offset of an optical emitter of the light source. The static multiview display further includes the array of diffraction gratings are configured to scatter out a portion of the collimated guided light beam as a plurality of directional light beams representing the multiview image.
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Patent Agency Ranking
公开(公告)号：CA3044810A1
公开(公告)日：2018-07-12
申请号：CA3044810
申请日：2017-09-27
Applicant: LEIA INC
Inventor： FATTAL DAVID A , LI XUEJIAN , AIETA FRANCESCO
Abstract: 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. 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 from a portion of the guided light beams directional light beams having intensities and principal angular directions corresponding to view pixels of the static multiview image.
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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：CA3044810C
公开(公告)日：2021-05-25
申请号：CA3044810
申请日：2017-09-27
Applicant: LEIA INC
Inventor： FATTAL DAVID A , LI XUEJIAN , AIETA FRANCESCO
Abstract: 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. 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 from a portion of the guided light beams directional light beams having intensities and principal angular directions corresponding to view pixels of the static multiview image.
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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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