公开(公告)号：CA3089955A1

公开(公告)日：2019-09-06

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：HK1250191A1

公开(公告)日：2018-11-30

申请号：HK18109568

申请日：2018-07-24

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B20060101 ,  H04N20060101

公开(公告)号：CA3053815A1

公开(公告)日：2018-10-04

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：HK1246955A1

公开(公告)日：2018-09-14

申请号：HK18106475

申请日：2018-05-18

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G01S17/931

公开(公告)号：CA3044810A1

公开(公告)日：2018-07-12

申请号：CA3044810

申请日：2017-09-27

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  LI XUEJIAN ,  AIETA FRANCESCO

IPC: F21V8/00 ,  G02B27/22 ,  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. The static multiview display 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 static multiview display further includes a plurality of diffraction gratings configured to provide from a portion of the guided light beams directional light beams having intensities and principal angular directions corresponding to view pixels of the static multiview image.

公开(公告)号：CA3044192A1

公开(公告)日：2018-07-05

申请号：CA3044192

申请日：2016-12-28

Applicant: LEIA INC

Inventor： MA MING ,  FATTAL DAVID A

IPC: F21V8/00

Abstract: Multiview displays include a reflective support structure located between a backlight and a screen. The backlight includes a plate light guide configured to couple out light that propagates within the plate light guide using multibeam elements. The reflective support structure reflects light incident on a portion of the surface that abuts the reflective support structure back into the plate light guide. The screen includes an array of multiview pixels configured to modulate coupled out light to create a multiview image.

公开(公告)号：CA2993939A1

公开(公告)日：2017-03-09

申请号：CA2993939

申请日：2016-07-02

Applicant: LEIA INC

Inventor： FATTAL DAVID A

IPC: G02B27/01 ,  G02B6/12 ,  G02F1/1335

Abstract: A diffractive backlight system includes a light source and a planar plate light guide. A surface of the plate light guide is configured with a diffraction grating that couples light out of the plate light guide and concentrates the light into a localized region of space. The diffractive backlight system may be used with at least one light-valve array to form a display that generates images for viewing in the localized region of space. The display may be incorporated in head-mounted displays in order to generate focused augmented or virtual reality images for wearers.

公开(公告)号：HK1206101A1

公开(公告)日：2015-12-31

申请号：HK15106380

申请日：2015-07-06

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  BRUG JAMES A ,  PENG ZHEN ,  FIORENTINO MARCO ,  BEAUSOLEIL RAYMOND G

IPC: G02B20060101

Abstract: A directional pixel for use in a display screen is disclosed. The directional pixel receives a planar Iightbeam and includes a light propagating layer and a grating to scatter a portion of the planar Iightbeam into a directional Iightbeam having a direction and angular spread controlled by the grating.

公开(公告)号：CA3045965C

公开(公告)日：2022-11-01

申请号：CA3045965

申请日：2017-02-28

Applicant: LEIA INC

Inventor： MA MING ,  FATTAL DAVID A

IPC: G02B6/12 ,  F21V8/00

Abstract: Multiview backlighting having a color-tailored emission pattern provides directional light beams corresponding to a plurality of different views of a multiview image. A multiview backlight includes a light guide configured to guide light as guided light and a color-tailored multibeam element. The color-tailored multibeam element is configured to provide emitted light having the color-tailored emission pattern from the guided light. The emitted light includes a plurality of directional light beams having different principal angular directions corresponding to respective different view directions of a multiview display. The color-tailored emission pattern corresponds to an arrangement of color sub-pixels of a view pixel in the multiview display.

公开(公告)号：ES2905638T3

公开(公告)日：2022-04-11

申请号：ES15903284

申请日：2015-11-18

Applicant: LEIA INC

Inventor： MA MING ,  FATTAL DAVID A

IPC: G02B30/22 ,  F21V8/00 ,  G02B19/00 ,  G02B27/30 ,  G02B30/33 ,  G02F1/13357

Abstract: Un colimador de superficie doble (100, 210, 310) que comprende: una superficie de entrada (110, 212) que tiene una forma curva, estando configurada la superficie de entrada para refractar la luz incidente de una fuente de luz; y una superficie reflectora (120, 214) opuesta a la superficie de entrada y que tiene otra forma curva, estando configurada la superficie reflectora para reflejar la luz refractada hacia la superficie de entrada, caracterizada porque la superficie de entrada está configurada además para reflejar la luz reflejada por reflexión interna total hacia una abertura de salida (108) del colimador de superficie doble, y porque las formas curvas y una orientación relativa de la superficie de entrada y la superficie reflectora, en combinación, están configuradas para convertir la luz incidente en luz colimada de dirección doble en la abertura de salida, teniendo la luz colimada de doble dirección un ángulo de propagación distinto de cero con respecto a un plano horizontal del colimador de superficie doble.