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11.发明申请
公开(公告)号：WO2020036587A1
公开(公告)日：2020-02-20
申请号：PCT/US2018/046562
申请日：2018-08-13
Applicant: LEIA INC.
Inventor： LI, Xuejian , MA, Ming , FATTAL, David A.
IPC: G02B27/30
Abstract: 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：WO2019168538A1
公开(公告)日：2019-09-06
申请号：PCT/US2018/020541
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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公开(公告)号：WO2019099041A1
公开(公告)日：2019-05-23
申请号：PCT/US2017/062439
申请日：2017-11-18
Applicant: LEIA INC.
Inventor： MA, Ming , LI, Xuejian , FATTAL, David A.
IPC: F21V8/00
Abstract: A bar collimator and backlight system provide collimated light to illuminate a backlight. The bar collimator includes a light guide configured to guide light as guided light and a light extraction feature on a side of the light guide configured to scatter a portion of the guided light out of the light guide as extracted light. The bar collimator further includes a collimation film between the light guide and the backlight, the collimation film being configured to collimate the extracted light. The collimated light has an extent corresponding to a length of an input of the backlight and is configured to serve as an illumination source of the backlight. The backlight system includes the bar collimator and the backlight. The backlight may be multiview backlight.
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公开(公告)号：WO2018213100A1
公开(公告)日：2018-11-22
申请号：PCT/US2018/032131
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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15.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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Patent Agency Ranking
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：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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公开(公告)号：WO2018022028A1
公开(公告)日：2018-02-01
申请号：PCT/US2016/044124
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.
Abstract translation: 棒准直器和背光系统采用衍射耦合来为背光提供准直照明源。 棒准直器包括设置在光导的一侧上的光导和衍射光栅。 光导被配置为引导从光源接收的光作为被引导的光。 衍射光栅被配置为衍射耦合出导光的一部分并且将衍射耦合输出部分朝向背光的输入引导为具有与背光输入的长度对应的范围的准直光。 背光系统包括条准直器并且还包括光源和与条准直器的光导相邻的背光，背光被配置为接收来自条准直器的衍射光栅的准直光。
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公开(公告)号：EP3735557A1
公开(公告)日：2020-11-11
申请号：EP18908238.1
申请日：2018-03-01
Applicant: LEIA Inc.
Inventor： LI, Xuejian , FATTAL, David A. , AIETA, Francesco , MA, Ming
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公开(公告)号：EP3622340A1
公开(公告)日：2020-03-18
申请号：EP17909424.8
申请日：2017-05-11
Applicant: LEIA Inc.
Inventor： FATTAL, David A. , MA, Ming , LI, Xuejian
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