公开(公告)号：CA3055658A1

公开(公告)日：2018-10-11

申请号：CA3055658

申请日：2018-03-18

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  KREBBERS ANDRE

IPC: F21V8/00

Abstract: A dual view zone backlight and dual-mode display employ a first backlight region to provide directional emitted light toward a first view zone and a second backlight region to provide broad-angle emitted light toward the first and a second view zone in a first mode. The dual-mode display includes a second backlight to provide broad-angle light toward both the first and the second view zones in a second mode.

公开(公告)号：CA3055556A1

公开(公告)日：2018-10-11

申请号：CA3055556

申请日：2017-04-08

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING

IPC: H04N13/32 ,  G02B27/22 ,  G02F1/13357 ,  G02F1/1677 ,  H04N13/356

Abstract: A multiview backlight and mode-switchable backlight employ a planar backlight to emit scattered light and light-blocking layer having a plurality of apertures to provide a plurality of directional light beams from the scattered light. The mode-switchable backlight further includes another planar backlight configured to provide diffuse light in a two-dimensional (2D) operational mode, the plurality of directional light beams being provided in a three-dimensional (3D) mode. A 2D/3D mode-switchable display includes the mode-switchable backlight and a light valve array. A method of backlight operation includes directing scattered light from a planar backlight toward a light-blocking layer having a plurality of apertures and providing a plurality of directional light beams using an aperture of the aperture plurality.

公开(公告)号：CA3035799A1

公开(公告)日：2018-04-12

申请号：CA3035799

申请日：2017-10-04

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: F21V8/00 ,  G02B27/22 ,  G02B27/42

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：CA3016413A1

公开(公告)日：2017-09-28

申请号：CA3016413

申请日：2016-03-23

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B6/34 ,  G02B5/18 ,  G02B27/22 ,  G02F1/13357

Abstract: Grating-based backlighting includes a light guide and a plurality of reflective grating islands spaced apart from one another and optically coupled to the light guide. The light guide is to guide a light beam at a non-zero propagation angle and a reflective grating island includes a reflection mode diffraction grating that is configured to diffractively couple out a portion of the guided light beam as a coupled-out light beam at a predetermined principal angular direction.

公开(公告)号：CA2996925A1

公开(公告)日：2017-03-09

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：CA2994254A1

公开(公告)日：2017-03-09

申请号：CA2994254

申请日：2016-02-26

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING

IPC: G02F1/13357

Abstract: Polychromatic backlighting employs a grating coupler to diffractively split and redirect collimated light coupled into a light guide. A polychromatic grating-coupled backlight includes a light guide configured to guide light and a light source to provide collimated polychromatic light. The polychromatic grating-coupled backlight further includes the grating coupler diffractively split and redirect to provide a plurality of light beams. Each light beam of the plurality represents a respective different color of the polychromatic light and is configured to propagate within the light guide as guided light at a color-specific, non-zero propagation angle corresponding to the respective different color of polychromatic light. An electronic display includes the polychromatic grating-coupled backlight and further includes a diffraction grating to diffractively couple out a portion of the guided light and a light valve array to modulate the coupled-out light as an electronic display pixel.

公开(公告)号：HK1205793A1

公开(公告)日：2015-12-24

申请号：HK15106381

申请日：2015-07-06

Applicant: LEIA INC

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

IPC: G02B20060101

Abstract: A directional backlight is disclosed. The directional backlight has a directional backplane that has a plurality of directional pixels to scatter a plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. A modulation layer having a plurality of modulators modulates the plurality of directional lightbeams. The directional backlight can be used to generate a 3D image with multiple views by specifying the characteristics of the directional pixels in the directional backplane.

公开(公告)号：CA3084793C

公开(公告)日：2022-08-30

申请号：CA3084793

申请日：2017-12-18

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: F21V8/00 ,  G02B27/42

Abstract: A mode-switchable backlight and mode-switchable display employ a first planar backlight to emit broad-angle emitted light during a first mode and a second planar backlight to emit directional emitted light during a second mode. The second planar backlight includes a plate light guide and an array of multibeam elements configured to scatter out guided light from the light guide during a second mode as the directional emitted light including a plurality of directional light beams having principal angular directions corresponding to view directions of a multiview image. The mode-switchable display further includes a light valve array configured to modulate the broad-angle emitted light to provide a two-dimensional image during the first mode and to modulate the directional emitted light to provide a multiview image during the second mode.

公开(公告)号：CA3064551C

公开(公告)日：2021-12-21

申请号：CA3064551

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：CA2990591C

公开(公告)日：2021-12-21

申请号：CA2990591

申请日：2015-07-23

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02F1/13357

Abstract: A dual layer backlight employs a first planar backlight to emit light and a second planar backlight to provide a plurality of coupled-out light beams. The second planar backlight includes a plate light guide and a multibeam diffraction grating configured to diffractively couple out a portion of a guided light beam within the plate light guide as the plurality of coupled-out light beams. A light beam of the coupled-out light beam has a different principal angular direction from other light beams of the coupled-out light beam plurality. A two-dimensional/three-dimensional (2D/3D) mode-switchable electronic display includes the dual layer backlight and a light valve array configured to selectively modulate emitted light as 2D pixels in a first mode and the coupled-out light beams as 3D pixels corresponding to the different 3D views in a second mode of the electronic display.