公开(公告)号：CA3136670A1

公开(公告)日：2020-11-05

申请号：CA3136670

申请日：2020-04-25

Applicant: LEIA INC

Inventor： HOEKMAN THOMAS ,  FATTAL DAVID A ,  MA MING ,  PENG ZHEN

IPC: G02F1/01 ,  G02B27/44 ,  G02B30/33 ,  G02F1/13357

Abstract: Fabricating a diffractive backlight employs a universal grating and selects a portion of the universal grating using a reflective island to define a grating element, a reflective diffraction grating element of the diffractive backlight including the grating element and the reflective island. A method of fabricating a diffractive backlight includes forming the universal grating, forming the reflective island, and selecting a portion of the universal grating using the reflective island to define the grating element. The method of fabricating a diffractive backlight may include forming the reflective island on a light guide surface and forming the universal grating over the reflective island. Alternatively, the method of fabricating a diffractive backlight may include forming the universal grating on the light guide surface and forming the reflective island over the universal grating.

公开(公告)号：CA3125202A1

公开(公告)日：2020-07-30

申请号：CA3125202

申请日：2020-01-21

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  HOEKMAN THOMAS

IPC: F21V8/00 ,  G02F1/1335 ,  G02F1/13357

Abstract: A multi-directional backlight and a multi-user multiview display provide emitted light and associated multiview images having different mutually exclusive angular ranges and different user-specific view zones. The multi-directional backlight includes first and second multiview backlights, each of which includes multibeam elements configured to provide emitted light having directional light beams with directions corresponding to view directions of a respective multiview images. The emitted light provided first multiview backlight has a first angular range that is mutually exclusive of a second angular range of emitted light provided by the second multiview backlight, at respective first and second convergence distances. The multi-user multiview display includes a first multiview display configured to provide a first multiview image to a first user in a first view zone and a second multiview display configured to provide a second multiview image to a second user in a second view zone.

公开(公告)号：CA3120072A1

公开(公告)日：2020-06-25

申请号：CA3120072

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：CA3116115A1

公开(公告)日：2020-06-11

申请号：CA3116115

申请日：2018-12-08

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B30/33 ,  G02B5/02 ,  G02B5/18 ,  G02B27/30 ,  G02B27/42

Abstract: A static multiview display and method of static multiview display operation provide a static multiview image using diffractive gratings to diffractively scatter light from guided light beams having different radial directions provided by a horizontal diffuser. The static multiview display includes a light guide configured to guide the light beams; the horizontal diffuser configured to provide the guided light beams with the different radial directions using light from a directional light source; and a plurality of diffraction gratings configured to scatter out light from the guided light beam plurality as directional light beams representing the static multiview image. The method of static display operation includes providing and diffusing directional light to provide guided light beams having different radial directions, and further scattering out light from the guided light beam as directional light beams representing the static multiview image.

公开(公告)号：CA3116006A1

公开(公告)日：2020-05-07

申请号：CA3116006

申请日：2019-10-25

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  LOWNEY JOSEPH D ,  HOEKMAN THOMAS

IPC: F21V8/00

Abstract: A multi view backlight and multi view display employ an optical mask element having a first portion and a laterally displaced second portion to mitigate Moiré associated with the optical mask element. The multiview backlight includes an array of multibeam unit cells distributed across a light guide. Each multibeam unit cell has a multibeam element configured to scatter out a portion of guided light as a plurality of directional light beams having different directions corresponding to different views of the multiview display. Each multibeam unit cell further includes an optical mask element having the first portion aligned and co-extensive with the multibeam element and the second portion laterally displaced within the multibeam unit cell from the first portion. One or both of the lateral displacement and an overall size of the optical mask element is configured to mitigate Moiré associated with the optical mask element.

公开(公告)号：CA3101585A1

公开(公告)日：2020-01-02

申请号：CA3101585

申请日：2018-06-29

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B30/33 ,  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：HK1255334A1

公开(公告)日：2019-08-16

申请号：HK18114470

申请日：2018-11-13

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B20060101 ,  F21V20060101

公开(公告)号：HK1254460A1

公开(公告)日：2019-07-19

申请号：HK18113546

申请日：2018-10-23

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B20060101

公开(公告)号：CA3084344A1

公开(公告)日：2019-06-27

申请号：CA3084344

申请日：2017-12-18

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B27/01 ,  F21V8/00

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：HK1252029A1

公开(公告)日：2019-05-10

申请号：HK18111359

申请日：2018-09-05

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B20060101 ,  F21V20060101