公开(公告)号：HK1206091A1

公开(公告)日：2015-12-31

申请号：HK15106382

申请日：2015-07-06

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  PENG ZHEN ,  SANTORI CHARLES M

IPC: F21S20060101 ,  F21V20060101 ,  G02F20060101

Abstract: Multibeam diffraction grating-based backlighting includes a light guide and a multibeam diffraction grating at a surface of the light guide. The light guide is configured to guide light from a light source. The multibeam diffraction grating is configured to couple out a portion of the guided light using diffractive coupling and to direct the diffractively coupled out portion away from the light guide as a plurality of light beams with different principal angular directions having directions corresponding to view directions of a multiview display.

公开(公告)号：HK1205563A1

公开(公告)日：2015-12-18

申请号：HK15106094

申请日：2015-06-26

Applicant: LEIA INC

Inventor： SANTORI CHARLES M ,  FATTAL DAVID A ,  FIORENTINO MARCO ,  BRUG JAMES A ,  PENG ZHEN

IPC: G02B20060101

Abstract: A directional backlight is disclosed. The directional backlight has a plurality of light sources to generate a plurality of input planar lightbeams. The plurality of input planar lightbeams illuminates a directional backplane that has a plurality of directional pixels to scatter the plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread control led by characteristics of a directional pixel in the plurality of directional pixels. The directional backlight can be used to generate a 3D image by speci fying the characteristics of the directional pixels in the directional backplane.

公开(公告)号：HK1204684A1

公开(公告)日：2015-11-27

申请号：HK15105244

申请日：2015-06-02

Applicant: LEIA INC

Inventor： TAFF BRIAN M ,  FATTAL DAVID A ,  BEAUSOLEIL RAYMOND G

IPC: G04C20060101 ,  G02B20060101 ,  H04N20060101

Abstract: A multiview 3D wrist watch is disclosed. The wrist watch has clock circuitry to determine a time and a plurality of light sources to generate a plurality of input planar lightbeams. A directional backplane having a plurality of directional pixels scatters the plurality of input planar lightbeams into a plurality of directional lightbeams, each directional lightbeam having a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. A shutter layer receives the time from the clock circuitry and modulates the plurality of directional lightbeams to generate a 3D time view.

公开(公告)号：CA2991923C

公开(公告)日：2022-11-01

申请号：CA2991923

申请日：2015-10-20

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING ,  LI XUEJIAN

IPC: G02B27/30

Abstract: Dual-direction collimation and a dual-direction optical collimator provide dual-direction collimated light at a non-zero propagation angle. The dual-direction collimator includes a vertical collimator configured to collimate light in a vertical direction and a horizontal collimator configured to collimate the vertically collimated light in a horizontal direction. The horizontal collimator is located at an output of the vertical collimator. A three-dimensional (3D) display includes the dual-direction collimator, a plate light guide and an array of multibeam diffraction gratings at a surface of the plate light guide to couple out the dual-direction collimated light guided in the plate light guide as a plurality of light beams corresponding to different 3D view of the 3D electronic display.

公开(公告)号：CA3089955C

公开(公告)日：2022-10-18

申请号：CA3089955

申请日：2018-03-01

Applicant: LEIA INC

Inventor： LI XUEJIAN ,  FATTAL DAVID A ,  AIETA FRANCESCO ,  MA MING

IPC: F21V8/00 ,  G02B27/42

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.

公开(公告)号：CA3055529C

公开(公告)日：2022-08-30

申请号：CA3055529

申请日：2017-09-27

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  LI XUEJIAN ,  AIETA FRANCESCO

IPC: G02B30/33 ,  F21V8/00 ,  G02B27/42

Abstract: A multilayer static multiview display and method of multilayer multiview display operation provide a plurality of multiview images using diffractive scattering of light from guided light beams having different radial directions. The static multiview display includes a first multiview display layer configured to emit directional light beams representing a first multiview image by diffractive scattering light from a radial pattern of guided light beams within the first multiview display layer. The static multiview display further includes a second multiview display layer configured to emit directional light beams representing a second static multiview image by diffractive scattering light from a radial pattern of guided light beams within the second multiview display layer. The provided plurality of multiview images may include a composite color multiview image, a static multiview image, or an animated or quasi-static multiview image.

公开(公告)号：CA3075296C

公开(公告)日：2022-07-19

申请号：CA3075296

申请日：2017-10-27

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: F21V8/00

Abstract: A backlit transparent display and a transparent display system provide a displayed image while enabling a background scene to be visible through the display. The backlit transparent display includes a light guide, a plurality of scattering elements, and an array of light valves configured to modulate emitted light scattered from the light guide to provide modulated emitted light representing a displayed image. Transparency of the backlit transparent display is configured to enable the background scene to be visible through the backlit transparent display. The transparent display system includes the array of light valves and a transparent backlight. The transparent display system is configured to provide the displayed image as superimposed on the background scene visible through the transparent display system.

公开(公告)号：CA3035799C

公开(公告)日：2022-07-19

申请号：CA3035799

申请日：2017-10-04

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: F21V8/00 ,  G02B27/42 ,  G02B30/33

Abstract: A transparent display and a transparent multiview display an image while enabling a background scene to be visible through the display. The transparent display includes a light guide having a scattering feature and an array of light valves configured to modulate emitted light scattered from the light guide to provide modulated emitted light representing a displayed image. Transparency of a combination of the light guide and the array of light valves is configured to enable the background scene to be visible through the transparent display. The transparent multiview display includes the light guide and a plurality of multibeam elements configured to scatter guided light from the light guide as a plurality of directional light beam. The transparent multiview display further includes an array of light valves to modulate the directional light beams to provide the display image as a multiview image.

公开(公告)号：CA2996925C

公开(公告)日：2022-06-28

申请号：CA2996925

申请日：2016-06-30

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B27/01 ,  F21V8/00

Abstract: A light concentrating backlight includes a light guide to guide light and a diffraction grating configured to diffractively couple out a portion of the guided light as diffractively coupled-out light and to concentrate the diffractively coupled-out light into an eyebox. A near-eye display system includes the light guide and the diffraction grating, and further includes a light valve array configured to modulate the diffractively coupled-out light to form an image in the eyebox. The formed image is configured to be viewable within the eyebox by a user.

公开(公告)号：CA2996967C

公开(公告)日：2022-05-31

申请号：CA2996967

申请日：2016-09-04

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B27/00 ,  G02B27/01

Abstract: A head-tracking multiview display and a system provide a plurality of views of a scene as a multiview image. The plurality of views includes a set of primary views of the scene and a secondary view representing a perspective view of the scene that is angularly adjacent to the primary view set. The display and system are multibeam diffraction grating-based and configured to selectively provide the primary view set and an augmented set of views that includes the secondary view and a subset of the views of the primary view set based on a tracked position of a user or a users head. At a first position the display is configured to provide the primary view set and at a second position the display is configured to provide the augmented view set.