公开(公告)号：CA3146277A1

公开(公告)日：2021-01-14

申请号：CA3146277

申请日：2019-07-11

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING

IPC: F21V8/00 ,  G02B6/122 ,  G02B30/00 ,  G02F1/13357

Abstract: A multiview backlight having applications in a multiview display employs an array of multibeam elements located a predetermined distance below a top surface of a light guide in the multiview backlight. The multibeam elements may be configured to scatter out through the top surface a portion of guided light from the light guide as directional light beams having different principal angular directions corresponding to different views of the multiview display. For example, the multibeam elements each may comprise one or more of a diffraction grating, a micro-reflective element, and a micro-refractive element. Moreover, the multiview display may include an array of light valves configured to modulate the directional light beams as a multiview image to be displayed by the multiview display, and the predetermined distance may be greater than one quarter of a size of a light valve of the set of light valves.

公开(公告)号：CA3125431A1

公开(公告)日：2020-08-20

申请号：CA3125431

申请日：2019-12-16

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING

IPC: G02B26/08 ,  G02B5/02 ,  G02B30/00

Abstract: A horizontal parallax multiview display employs a plurality of slanted multibeam columns to scatter out of a light guide a plurality of directional light beams having principal angular directions corresponding to different view directions of the horizontal parallax multiview display. The plurality of directional light beams is modulated using an array of light valves to provide a multiview image having horizontal parallax. Further, the horizontal parallax multiview display employs a light control film having a slanted light control axis aligned with slanted multibeam columns of the slanted multibeam column plurality. The light control film is configured to control a view angle of the multiview image in a direction orthogonal to the horizontal parallax. The slanted multibeam columns may provide the multiview displays with a balanced resolution.

公开(公告)号：CA3108060A1

公开(公告)日：2020-02-20

申请号：CA3108060

申请日：2018-08-13

Applicant: LEIA INC

Inventor： LI XUEJIAN ,  MA MING ,  FATTAL DAVID A

IPC: G02B27/30

Abstract: A grating collimator and backlight system provide collimated light to illuminate a backlight. The grating collimator includes a light guide configured to guide light as guided light and a light-recycling light source configured to provide light to the light guide and to recycle light received from the light guide. The grating collimator further includes a diffraction grating coupler configured to diffractively redirect the provided light into the light guide as the guided light. The backlight system includes the grating collimator configured to provide collimated output light and the backlight configured to receive the collimated output light. The backlight may be multiview backlight.

公开(公告)号：CA3079967A1

公开(公告)日：2019-05-23

申请号：CA3079967

申请日：2017-11-18

Applicant: LEIA INC

Inventor： MA MING ,  LI XUEJIAN ,  FATTAL DAVID A

IPC: F21V8/00

Abstract: A bar collimator and backlight system provide collimated light to illuminate a backlight. The bar collimator includes a light guide configured to guide light as guided light and a light extraction feature on a side of the light guide configured to scatter a portion of the guided light out of the light guide as extracted light. The bar collimator further includes a collimation film between the light guide and the backlight, the collimation film being configured to collimate the extracted light. The collimated light has an extent corresponding to a length of an input of the backlight and is configured to serve as an illumination source of the backlight. The backlight system includes the bar collimator and the backlight. The backlight may be multiview backlight.

公开(公告)号：CA3064724A1

公开(公告)日：2018-12-27

申请号：CA3064724

申请日：2017-06-21

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  LI XUEJIAN ,  MA MING ,  VO SONNY

IPC: F21V8/00 ,  G02B27/22

Abstract: A multiview backlight and a multiview display employ a microprism multibeam element to emit a plurality of directional light beams having principal angular directions corresponding to view directions of the multiview display. The multiview backlight includes a light guide and the microprism multibeam element extending from a surface of the light guide. The microprism multibeam element has an input aperture configured to receive a portion of guided light and an output aperture configured to emit the plurality of directional light beams. The microprism multibeam element includes a microprism having an inclined sidewall configured to reflect the received guided light portion and provide the plurality of directional light beams. The multiview display includes the multiview backlight and an array of multiview pixels configured to provide different views of the multiview display from the plurality of directional light beams.

公开(公告)号：CA3060435A1

公开(公告)日：2018-11-22

申请号：CA3060435

申请日：2018-05-10

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING ,  LI XUEJIAN

IPC: F21V8/00 ,  G02B6/122 ,  G02B6/35 ,  G02B27/22

Abstract: A multiview backlight includes a first array active emitters configured to provide a first plurality of directional light beams and a second array of active emitters configured to provide a second plurality of directional light beams. The second array of active emitters is interleaved between active emitters of the first array of active emitters. Further, directional light beams of each of the first and second directional light beam pluralities have directions corresponding to view directions of a multiview display. A multiview display further includes an array of light valves configured to modulate the directional light beams to display a multiview image. An image resolution of the multiview image is configured to be dynamically selectable according to operational mode.

公开(公告)号：CA3061308A1

公开(公告)日：2018-11-15

申请号：CA3061308

申请日：2017-05-11

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING ,  LI XUEJIAN

IPC: G02B27/22 ,  G02B5/02

Abstract: A multiview backlight and a multiview display employ a microstructured multibeam element to emit a plurality of directional light beams having principal angular directions corresponding to view directions of the multiview display. The multiview backlight includes a light guide and the microstructured multibeam element adjacent and external to a surface of the light guide. The microstructured multibeam element has an input aperture configured to receive a portion of guided light from the light guide and an output aperture configured to emit the plurality of directional light beams. The microstructured multibeam element comprises a microstructure having an interior surface configured to reflect the received guided light portion to provide the plurality of directional light beams at the output aperture. The multiview display includes the multiview backlight and an array of multiview pixels configured to provide different views of the multiview display.

公开(公告)号：CA3145713A1

公开(公告)日：2018-10-11

申请号：CA3145713

申请日：2017-04-08

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING

IPC: G02B30/33

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：CA3045965A1

公开(公告)日：2018-09-07

申请号：CA3045965

申请日：2017-02-28

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING

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：CA3035787A1

公开(公告)日：2018-04-12

申请号：CA3035787

申请日：2017-09-28

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  MA MING ,  LI XUEJIAN

IPC: F21V8/00 ,  G02B27/22

Abstract: A mode-selectable backlight and display employ a plurality of directional scattering features to provide emitted light. The mode-selectable backlight includes a light guide, a first directional scattering feature to provide first emitted light from guided light having a first propagation direction within the light guide in a first operational mode, and a second directional scattering feature to provide second light from guided light having a second propagation direction within the light guide in a second operational mode. The second emitted light comprises a plurality of directional light beams having different principal angular directions from one another and the first propagation direction differing from the second propagation direction. The mode-selectable display further includes a plurality of light sources to provide the guided light and an array of light valves configured to modulate the emitted light as a displayed image.