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    MICROPRISM MULTIBEAM ELEMENT BACKLIGHT AND MULTIVIEW DISPLAY USING SAME
    31.
    发明申请
    MICROPRISM MULTIBEAM ELEMENT BACKLIGHT AND MULTIVIEW DISPLAY USING SAME 审中-公开

    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

    IPC: F21V8/00 ,  G02B27/22

    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.

    LIGHT SOURCE AND MULTIVIEW BACKLIGHT USING THE SAME
    32.
    发明申请
    LIGHT SOURCE AND MULTIVIEW BACKLIGHT USING THE SAME 审中-公开

    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.

    BACKLIGHT, MULTIVIEW DISPLAY AND METHOD EMPLOYING TAPERED COLLIMATOR
    33.
    发明申请
    BACKLIGHT, MULTIVIEW DISPLAY AND METHOD EMPLOYING TAPERED COLLIMATOR 审中-公开

    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.

    MULTIVIEW DISPLAYS HAVING A REFLECTIVE SUPPORT STRUCTURE
    34.
    发明申请
    MULTIVIEW DISPLAYS HAVING A REFLECTIVE SUPPORT STRUCTURE 审中-公开

    公开(公告)号：WO2018125091A1

    公开(公告)日：2018-07-05

    申请号：PCT/US2016/068935

    申请日：2016-12-28

    Applicant: LEIA INC.

    Inventor： MA, Ming ,  FATTAL, David A.

    IPC: F21V8/00

    Abstract: Multiview displays include a reflective support structure located between a backlight and a screen. The backlight includes a plate light guide configured to couple out light that propagates within the plate light guide using multibeam elements. The reflective support structure reflects light incident on a portion of the surface that abuts the reflective support structure back into the plate light guide. The screen includes an array of multiview pixels configured to modulate coupled out light to create a multiview image.

    BAR COLLIMATOR, BACKLIGHT SYSTEM AND METHOD
    35.
    发明申请
    BAR COLLIMATOR, BACKLIGHT SYSTEM AND METHOD 审中-公开
    BAR COLLIMATOR，背光系统和方法

    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.

    IPC: F21V8/00 ,  G02B6/10

    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。

    DUAL SURFACE COLLIMATOR AND 3D ELECTRONIC DISPLAY EMPLOYING GRATING-BASED BACKLIGHTING USING SAME
    36.
    发明申请
    DUAL SURFACE COLLIMATOR AND 3D ELECTRONIC DISPLAY EMPLOYING GRATING-BASED BACKLIGHTING USING SAME 审中-公开
    使用相同的双面表面贴装机和3D电子显示器采用基于镀层的背光

    公开(公告)号：WO2017039729A1

    公开(公告)日：2017-03-09

    申请号：PCT/US2015/061417

    申请日：2015-11-18

    Applicant: LEIA INC.

    Inventor： MA, Ming ,  FATTAL, David A.

    IPC: G02B27/30 ,  G02B27/22 ,  G02F1/1335

    CPC classification number: G02B6/0031 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0068 ,  G02B27/22 ,  G02B27/225 ,  G02B27/30 ,  G02F1/133615 ,  G02F2201/305 ,  G02F2203/12 ,  H04N13/31

    Abstract: Dual-direction collimation and a dual surface collimator provide dual-direction collimated light at a non-zero propagation angle. The dual surface collimator includes an entrance surface and a reflector surface each having a curved shape. The entrance surface is configured to refract incident light and the reflector surface is configured to reflect the refracted light back toward the entrance surface. The entrance surface is further configured to re-reflect the reflected light by total internal reflection toward an output aperture. Curved shapes and relative orientation of the entrance and reflector surfaces, in combination, are configured to convert the incident light into dual-direction collimated light having the non-zero propagation angle. A three-dimensional (3D) display includes the dual surface collimator, a plate light guide and an array of multibeam diffraction gratings to provide a plurality of light beams corresponding to different 3D view of the display.

    Abstract translation: 双向准直和双面准直器提供非零传播角度的双向准直光。 双面准直仪包括入射面和各具有弯曲形状的反射器表面。 入射面被配置为折射入射光，并且反射器表面被配置为将折射光反射回入射面。 入射面进一步构造成通过全内反射朝向输出孔再反射反射光。 组合的入射面和反射器表面的弯曲形状和相对取向被构造成将入射光转换成具有非零传播角度的双向准直光。 三维（3D）显示器包括双面准直仪，平板光导和多波束衍射光栅阵列，以提供对应于显示器的不同3D视图的多个光束。

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