公开(公告)号：ES2907502T3

公开(公告)日：2022-04-25

申请号：ES16843169

申请日：2016-09-04

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B5/18 ,  F21V8/00 ,  G02B27/00 ,  G02B30/27 ,  G02B30/33 ,  H04N13/351 ,  H04N13/366 ,  H04N13/376

Abstract: Una pantalla de vistas múltiples de seguimiento de la cabeza (100, 210) que comprende: una luz de fondo (110) basada en red de difracción multihaz configurada para proporcionar una pluralidad de haces de luz que tienen diferentes direcciones angulares principales correspondientes a diferentes direcciones de vista de una imagen de vistas múltiples; y una matriz de válvulas de luz (120) configurada para modular la pluralidad de haces de luz (112) para proporcionar una pluralidad de vistas de una escena como la imagen de vistas múltiples, comprendiendo la pluralidad de vistas un conjunto de vistas primarias (102a) y una vista secundaria que representa una vista en perspectiva de la escena que es angularmente adyacente al conjunto de vistas primarias, en donde la pantalla de vistas múltiples de seguimiento de la cabeza está configurada para proporcionar selectivamente el conjunto de vistas primarias o un conjunto de vistas aumentadas (102b) que comprende la vista secundaria y un subconjunto de las vistas de la vista principal se establecen de acuerdo con una ubicación rastreada de un usuario.

公开(公告)号：CA3085870C

公开(公告)日：2021-12-21

申请号：CA3085870

申请日：2017-12-21

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING ,  LI XUEJIAN

IPC: F21V8/00

Abstract: A mode-selectable backlight and privacy display employ directional scattering features to provide emitted light. The mode-selectable backlight includes a light guide, a first directional scattering feature to provide broad-angle emitted light from guided light having a first propagation direction within the light guide during a public mode, and a second directional scattering feature to provide directional emitted light from guided light having a second propagation direction within the light guide during a privacy mode. The directional emitted light the provided during the privacy mode is directed into a viewbox. The mode-selectable privacy display further includes light sources configured to provide the guided light having the first and second propagation directions along with an array of light valves configured to modulate the broad-angle emitted light as a public image and the directional emitted light as a private image visible within the viewbox.

公开(公告)号：CA3060437C

公开(公告)日：2021-12-21

申请号：CA3060437

申请日：2018-05-10

Applicant: LEIA INC

Inventor： MA MING ,  FATTAL DAVID A ,  LI XUEJIAN

IPC: G02B30/33 ,  F21V8/00 ,  H04N13/349

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：CA3053819C

公开(公告)日：2021-11-30

申请号：CA3053819

申请日：2018-03-01

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: F21V8/00 ,  G02B27/42

Abstract: A directional backlight, backlit display and method of directional backlight operation employ diffraction grating to provide emitted light collectively scattered out by diffraction gratings having a uniform intensity and angular spread. The directional backlight includes a light guide configured to guide plurality of guided light beams and a light source configured to provide the guided light beam plurality having the different radial directions. The directional backlight further includes an array of diffraction gratings configured to configured to scatter out a portion of a guided light beam of the guided light beam plurality as emitted light having an intensity and an angular spread that is uniform across the light guide surface. The backlit display further includes an array of light valves configured to modulate the emitted light to provide a displayed image.

公开(公告)号：CA3053815C

公开(公告)日：2021-10-19

申请号：CA3053815

申请日：2018-03-15

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: F21V8/00

Abstract: A mode-switchable backlight and mode-switchable privacy display provide narrow-angle emitted light during a first mode and broad-angle emitted light in a second mode, the broad-angle emitted light being a combination of the narrow-angle emitted light and bidirectional emitted light. The mode-switchable backlight includes a first directional backlight and a second directional backlight. The first directional backlight is configured to provide the narrow-angle emitted light during both of the first mode and second mode, while the second directional backlight is configured to provide the bidirectional emitted light exclusively during the second mode. The mode-switchable privacy display includes an array of light valves configured to modulate the narrow-angle emitted light as a private displayed image during the first or privacy mode and to modulate broad-angle emitted light as a public displayed image during the second or public mode.

公开(公告)号：CA3053760C

公开(公告)日：2021-08-03

申请号：CA3053760

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.

公开(公告)号：CA3007627C

公开(公告)日：2021-05-25

申请号：CA3007627

申请日：2016-07-25

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B6/12 ,  F21V8/00

Abstract: A privacy display provides a private image exclusively visible within a viewing cone of a viewbox. The privacy display includes a light guide to guide light, a diffraction grating configured to diffractively couple out a portion of the guided light as diffractively coupled-out light and to direct the diffractively coupled-out light into the viewbox, and a light valve array configured to modulate the diffractively coupled-out light to provide the private image. An extent of the viewbox is determined by a collimation factor of the guided light. A dual-mode privacy display system further includes a broad-angle backlight configured to provide broad-angle light to separately provide a public image visible both inside and outside the viewing cone. The private image may be provided in a privacy mode and the public image may be provided in a public mode of the dual-mode privacy display system.

公开(公告)号：CA3156403A1

公开(公告)日：2021-04-29

申请号：CA3156403

申请日：2020-10-20

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  HOEKMAN THOMAS ,  BUKOWSKY COLTON ,  MA MING

Abstract: A multiview backlight, multiview display, and method multiview backlight operation include micro-slit multibeam elements 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 micro-slit multibeam elements, each micro-slit multibeam element including a plurality of micro-slit sub-elements and being configured to reflectively scatter out a portion of the guided light as the emitted light. Each micro-slit sub-element of the micro-slit sub-element plurality includes a sloped reflective sidewall having a slope angle tilted away from the propagation direction of the guided 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.

公开(公告)号：ES2819239T3

公开(公告)日：2021-04-15

申请号：ES15894424

申请日：2015-05-30

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: B60W50/14 ,  B60W40/02 ,  G01S17/931 ,  G08G1/16

Abstract: Un sistema de vigilancia de vehículos (100, 300) que comprende: un escáner tridimensional 3D, (110, 310) configurado para escanear una región (102) adyacente a un vehículo, siendo utilizado el escaneo para proporcionar un modelo 3D que incluye una configuración espacial de objetos ubicados dentro de la región escaneada; y una pantalla electrónica (120, 330) configurada para mostrar una parte (108) de la región escaneada usando el modelo 3D y para resaltar visualmente un objeto (104') dentro de la parte mostrada que se encuentra a menos de un umbral de distancia del vehículo, en donde el resaltado visual está configurado para mejorar la percepción del usuario del objeto que está más cerca del vehículo que la distancia de umbral caracterizado porque la pantalla electrónica comprende una pantalla electrónica 3D, la distancia de umbral corresponde a un plano de disparidad cero asociado con la parte de la región escaneada mostrada por la pantalla electrónica 3D, y en donde el resaltado visual del objeto ubicado a menos de la distancia umbral (106) del vehículo es una percepción visual del objeto que está frente al plano de disparidad cero en la pantalla electrónica 3D.

公开(公告)号：CA3136673A1

公开(公告)日：2020-11-05

申请号：CA3136673

申请日：2020-04-25

Applicant: LEIA INC

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

IPC: G02F1/1335

Abstract: Diffractive backlight fabrication employs a diffraction grating to scatter light from a light guide and define a reflective island that is aligned with the diffraction grating. A method of fabricating a diffractive backlight includes providing the light guide having the diffraction grating, diffractively scattering guided light out of the light guide using the diffraction grating to selectively expose photoresist and provide an opening in the photoresist, and depositing a reflective material into the opening to form a reflective island that is aligned with the diffraction grating. A reflective diffraction grating element of the diffractive backlight includes the diffraction grating and reflective island.