公开(公告)号：US20220003918A1

公开(公告)日：2022-01-06

申请号：US17481126

申请日：2021-09-21

Applicant: LEIA INC.

Inventor： Thomas Hoekman ,  David A. Fattal

IPC: F21V8/00 ,  G06K9/03

Abstract: A method of aligning a multiview backlight with a light valve array of a multiview display employs an alignment pattern that includes unit cells spaced apart from one another and having view blocks corresponding to different views of the multiview display. The method of aligning includes establishing the alignment pattern on the light valve array, illuminating the light valve array using the multiview backlight to display the alignment pattern, and adjusting a relative position of the multiview backlight and the light valve array to minimize an error measure of the unit cells within the displayed alignment pattern. A multiview display backlight alignment system includes the multiview display and a positioning stage configured to adjust the relative position to minimize the error measure. An automated multiview display backlight alignment system further includes a feedback controller, the positioning stage being motorized.

公开(公告)号：US20250060611A1

公开(公告)日：2025-02-20

申请号：US18720449

申请日：2022-02-24

Applicant: LEIA Inc.

Inventor： Thomas Hoekman ,  David A. Fattal

IPC: G02B30/33 ,  F21V8/00 ,  G02B3/00 ,  H04N13/32 ,  H04N13/351

Abstract: A multiview display and method employ an array of lenses to provide effective light sources from semi-collimated light. The multiview display includes a semi-collimated backlight configured to provide the semi-collimated light, an array of light valves arranged as multiview pixels, and an array of lenses disposed between the semi-collimated backlight and the array of lenses. Each lens of the array of lenses is configured to provide an effective light source at a focal plane of the lens to illuminate a corresponding multiview pixel.

公开(公告)号：US12072577B2

公开(公告)日：2024-08-27

申请号：US18142901

申请日：2023-05-03

Applicant: LEIA INC.

Inventor： David A. Fattal ,  Thomas Hoekman ,  Ming Ma

IPC: G02F1/13357 ,  F21V8/00 ,  G02B30/33 ,  G09G3/3208 ,  G09G3/34 ,  H04N13/32 ,  H04N13/349 ,  H04N13/351

CPC classification number: G02F1/133606 ,  G02B6/0073 ,  G02B30/33 ,  G09G3/3208 ,  G09G3/3426 ,  H04N13/32 ,  H04N13/349 ,  H04N13/351 ,  G09G2320/028

Abstract: A multiview backlight, multiview display, and method employ arrays of active emitters arranged in columns to provide directional light beams having directions corresponding to view directions of a multiview display. The multiview backlight includes a first array of active emitters arranged in columns and configured to provide a first plurality of directional light beams and a second array of active emitters arranged in columns and configured to provide a second plurality of directional light beams. Columns of the second active emitter array are disposed between and alternate with the columns of the first active emitter array. The multiview display further includes an array of light valves configured to modulate the directional light beams to display a multiview image. The view directions of the multiview display are in a plane that crosses the columns of first and second active emitter arrays.

公开(公告)号：US12032178B2

公开(公告)日：2024-07-09

申请号：US17234495

申请日：2021-04-19

Applicant: LEIA INC.

Inventor： David A. Fattal ,  Joseph D. Lowney ,  Thomas Hoekman

IPC: G02B30/33 ,  F21V8/00 ,  H04N9/31

CPC classification number: G02B30/33 ,  G02B6/0051 ,  H04N9/3197

Abstract: A multiview backlight and multiview 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 Moiréassociated with the optical mask element.

公开(公告)号：US11906758B2

公开(公告)日：2024-02-20

申请号：US17678992

申请日：2022-02-23

Applicant: LEIA INC.

Inventor： David A. Fattal ,  Thomas Hoekman

IPC: G02B30/33 ,  H04N13/351 ,  G02B5/02

CPC classification number: G02B30/33 ,  G02B5/0252 ,  G02B5/0278 ,  H04N13/351

Abstract: A multiview backlight and display employ diffusion of directional light beams to provide an image of color regions of a color-tailored multibeam element having a size comparable to a size of the color-tailored multibeam element. The multiview backlight includes an array of color-tailored multibeam elements configured to provide the directional light beams and an optical diffuser configured to spread out directional light beams to provide the color region image. The multiview display includes an array of the color-tailored multibeam elements and the optical diffuser. The multiview display further includes an array of light valves configured to modulate the directional light beams as a multiview image.

公开(公告)号：US20220179232A1

公开(公告)日：2022-06-09

申请号：US17678992

申请日：2022-02-23

Applicant: LEIA INC.

Inventor： David A. Fattal ,  Thomas Hoekman

IPC: G02B30/33 ,  G02B5/02 ,  H04N13/351

Abstract: A multiview backlight and display employ diffusion of directional light beams to provide an image of color regions of a color-tailored multibeam element having a size comparable to a size of the color-tailored multibeam element. The multiview backlight includes an array of color-tailored multibeam elements configured to provide the directional light beams and an optical diffuser configured to spread out directional light beams to provide the color region image. The multiview display includes an array of the color-tailored multibeam elements and the optical diffuser. The multiview display further includes an array of light valves configured to modulate the directional light beams as a multiview image.

公开(公告)号：US20220035088A1

公开(公告)日：2022-02-03

申请号：US17505565

申请日：2021-10-19

Applicant: LEIA INC.

Inventor： David A. Fattal ,  Thomas Hoekman

IPC: F21V8/00

Abstract: A multi-zone backlight and multi-zone multiview display with multiple zones selectively provide broad-angle emitted light corresponding to a two-dimensional (2D) image and directional emitted light corresponding to a multiview image to each zone of the multiple zones. The multi-zone backlight includes broad-angle backlight to provide the broad-angle emitted light and a multiview backlight to provide the directional emitted light. Each of the broad-angle backlight and the multiview backlight is divided into a first zone and a second zone that may be independently activated to provide the broad-angle emitted light and multiview emitted light, respectively. The multi-zone multiview display includes the broad-angle backlight and the multiview backlight and further includes an array of light valves configured to modulate the broad-angle emitted light as a two-dimensional image and the directional emitted light as a multiview image on a zone-by-zone basis.