公开(公告)号：WO2021151009A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/014776

申请日：2021-01-22

Applicant: LEIA INC.

Inventor： FATTAL, David A. ,  HOEKMAN, Thomas ,  BUKOWSKY, Colton ,  MA, Ming

IPC: F21V8/00 ,  G02F1/1335

Abstract: A reflective microprism scattering element based backlight, a multiview display, and a method backlight operation include reflective microprism reflective scattering elements configured to provide emitted light having a predetermined light exclusion zone. The reflective microprism scattering element based backlight includes a light guide configured to guide light and a plurality of the reflective microprism scattering elements having sloped reflective sidewalls configured to reflectively scatter out the guided light as the emitted light. The sloped reflective sidewalls of the reflective microprism scattering elements are configured to provide the predetermined light exclusion zone of the emitted light. The multiview display includes the reflective microprism scattering elements arranged as an array of reflective microprism multibeam elements. The multiview display also includes an array of light valves to modulate the directional light beams to provide the multiview image, except within the predetermined light exclusion zone.

公开(公告)号：WO2021150658A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/014281

申请日：2021-01-21

Applicant: LEIA INC.

Inventor： FATTAL, David A. ,  HOEKMAN, Thomas ,  BUKOWSKY, Colton ,  MA, Ming

IPC: G09F9/30 ,  G02F1/13357

Abstract: A multiview backlight, multiview display, and method of multiview backlight operation include reflective multibeam elements having one or more curved reflective surfaces configured to provide emitted light having directional light beams with directions corresponding to view directions of a multiview image. The multiview backlight includes a light guide configured to guide light and an array of the reflective multibeam elements. Each reflective multibeam element includes a plurality of reflective sub-elements and is configured to reflectively scatter out a portion of the guided light as the emitted light. The multiview display includes the multiview backlight and an array of light valves to modulate the directional light beams to provide the multiview image. A reflective sub-element of the reflective sub-element plurality includes a curved reflective surface, a surface curvature of the curved reflective surface being in a plane parallel to a guiding surface of the light guide.

公开(公告)号：WO2021150461A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/013835

申请日：2021-01-18

Applicant: LEIA INC.

Inventor： FATTAL, David A.

IPC: G09F9/30 ,  G02F1/13357

Abstract: A multi-user multi view display, system, and method selectively provide either a multiview image when a group of users is within a predefined viewing zone or a two- dimensional (2D) image when the group of users is outside of the predefined viewing zone. The multi-user multi view display includes a broad-angle backlight configured to provide broad-angle emitted light and a multi view backlight configured to directional emitted light. The multi-user multi view display further includes an array of light valves configured to modulate the broad-angle emitted light to provide the 2D image and to modulate the directional emitted light to provide the multi view image within a predefined viewing zone. A head tracker may be employed to track users of the group of user to determine whether or not to provide the multi view image or the 2D image based on a location of the group of users.

公开(公告)号：WO2020131090A1

公开(公告)日：2020-06-25

申请号：PCT/US2018/066968

申请日：2018-12-20

Applicant: LEIA INC.

Inventor： FATTAL, David A.

IPC: G02B27/00

Abstract: A multiple view-zone static multiview display employs diffraction gratings configured to provide directional light beams having principal angular directions for views of multiview images of the static multiview display. The multiple view-zone static multiview display includes a light guide that guides light from a light source. The light source may include an optical emitter, which may be offset in a longitudinal direction. The optical emitter of the light source provides within the light guide a collimated guided light beam having a propagation angle determined by the longitudinal offset of the optical emitter. Moreover, different sets of diffraction gratings scatter or diffract out different portions of the collimated guided light beam as different pluralities of directional light beams representing the multiview images into different view zones. These view zones may have different, non-overlapping angular ranges, which may be separated by a blank zone.

公开(公告)号：WO2020005291A1

公开(公告)日：2020-01-02

申请号：PCT/US2018/040420

申请日：2018-06-29

Applicant: LEIA INC.

Inventor： FATTAL, David A.

IPC: G02B27/22 ,  G02F1/1333

Abstract: A multiview display employs an array of multibeam elements configured to provide directional light beams having different principal angular directions corresponding to different view directions of the multiview display. Moreover, the multiview display includes an array of light valves configured to modulate the directional light beams as a multiview image to be displayed by the multiview display, where a multiview pixel of the multiview display includes a set of light valves of the light valve array corresponding to a multibeam element of the multibeam element plurality and being configured to modulate directional light beams from the multibeam element. Furthermore, a shape of the multiview pixel is dynamically reconfigurable to provide the multiview image having a dynamic field of view (FOV). The FOV may be modified based on a monitored orientation of the multiview display, a monitored position of a user relative to the multiview display, or both.

公开(公告)号：WO2019125393A1

公开(公告)日：2019-06-27

申请号：PCT/US2017/067130

申请日：2017-12-18

Applicant: LEIA INC.

Inventor： FATTAL, David A.

IPC: G02B27/01 ,  F21V8/00 ,  G02B27/22

Abstract: A head-up display and a multiview head-up display system provide a plurality of different views of a multiview image combined with a view of a physical environment to an eye box as a combined view. The head-up display includes a multibeam element-based display configured to provide the different views of the multiview image and an optical combiner configured to relay the different views to the eye box along with the view of the physical environment view. The multibeam element-based display includes an array of multibeam elements configured to provide a plurality of directional light beams having directions corresponding to respective view directions of the plurality of different views and an array of light valves configured to modulate the plurality of directional light beams to provide the multiview image.

公开(公告)号：WO2019017960A1

公开(公告)日：2019-01-24

申请号：PCT/US2017/043220

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.

公开(公告)号：WO2018231257A1

公开(公告)日：2018-12-20

申请号：PCT/US2017/038013

申请日：2017-06-16

Applicant: LEIA INC.

Inventor： FATTAL, David A. ,  RAYFIELD, John

IPC: F21V8/00 ,  G02F1/1335

Abstract: A multiview backlight and a multiview display employ a multibeam element configured to provide a tilted plurality of directional light beams having different principal angular directions corresponding to view directions of a plurality of view in a view zone. The multiview backlight includes a light guide configured to guide light as guided light and the multibeam element configured to couple out a portion of the guided light as the tilted plurality of directional light beams. A tilt angle of the tilted directional light beam plurality is provided by an offset of the multibeam element and a corresponding multiview pixel. The multiview display includes an array of multibeam elements and an array of multiview pixels.

公开(公告)号：WO2018213101A1

公开(公告)日：2018-11-22

申请号：PCT/US2018/032142

申请日：2018-05-10

Applicant: LEIA INC.

Inventor： FATTAL, David A. ,  MA, Ming ,  LI, Xuejian

IPC: F21V8/00 ,  G02B6/122 ,  G02B27/22 ,  H04N13/30

Abstract: A multiview backlight and a multiview display employ active emitters configured to provide a plurality of light beams having different principal angular directions corresponding to different view directions of the multiview display. A size of the active emitter is comparable to a size of a view pixel in the multiview display. A distance between active emitters is commensurate with a distance between adjacent multiview pixels of the multiview display. A multiview display further includes an array of light valves configured to modulate the directional light beams to display a multiview image.

公开(公告)号：WO2018067381A1

公开(公告)日：2018-04-12

申请号：PCT/US2017/054148

申请日：2017-09-28

Applicant: LEIA INC.

Inventor： FATTAL, David A. ,  MA, Ming ,  LI, Xuejian

IPC: F21V8/00 ,  G02B27/22

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.

Abstract translation: 模式可选背光和显示器采用多个定向散射特征来提供发射光。 模式可选背光源包括光导，第一定向散射特征和第二定向散射特征，第一定向散射特征用于在第一工作模式下提供来自在光导内具有第一传播方向的被引导光的第一发射光，第二定向散射特征用于提供来自被引导的第二光 在第二操作模式下在光导内具有第二传播方向的光。 第二发射光包括具有彼此不同的主角方向以及不同于第二传播方向的第一传播方向的多个定向光束。 模式选择显示器还包括多个光源以提供被引导的光和被配置为将所发出的光调制为显示图像的光阀阵列。