公开(公告)号：US10484662B2

公开(公告)日：2019-11-19

申请号：US15742519

申请日：2016-02-27

Applicant: LEIA INC.

Inventor： David A. Fattal

IPC: H04N13/128 ,  H04N5/247 ,  H04N13/302 ,  H04N13/243 ,  H04N13/282 ,  H04N13/111 ,  H04N13/296 ,  H04N13/106 ,  H04N13/351

Abstract: A multiview camera and multiview imaging system provide a plurality of different cropped images corresponding to a virtual screen located in a scene. The multiview camera includes a plurality of cameras configured to capture different images of a scene that have an overlapping portion in common. The multiview camera further includes an image processor configured to provide cropped images from the captured images according to a cropping window defined within the overlapping portion. The cropping window corresponds to a virtual screen located within the scene. An arrangement of the cameras corresponds to an arrangement of views of a multiview display configured to display the cropped images. The multiview imaging system further includes the multiview display.

公开(公告)号：US10373544B1

公开(公告)日：2019-08-06

申请号：US16031997

申请日：2018-07-10

Applicant: LEIA INC.

Inventor： David A. Fattal

IPC: G09G3/00 ,  G09G3/20 ,  G09G3/34

Abstract: A three-dimensional (3D) display driver includes a single buffer and a mapping circuit. The single buffer is configured to store a tiled image that includes a contiguously arranged plurality of tiles. Each tile represents a different 3D view of a 3D image. The different 3D views have associated angular ranges and principal angular directions. The mapping circuit is configured to access the stored tiled image and to map pixels from the different 3D views into pixels at corresponding locations in a composite image. The composite image is configured to spatially interleave the pixels from the different 3D views so that pixels from each of the different 3D views are distributed across the composite image. A 3D electronic display includes the mapping circuit.

公开(公告)号：US20190196091A1

公开(公告)日：2019-06-27

申请号：US16253160

申请日：2019-01-21

Applicant: LEIA INC.

Inventor： Xuejian Li ,  Ming Ma ,  David A. Fattal

IPC: F21V8/00

CPC classification number: G02B6/0038 ,  G02B6/0028 ,  G02B6/003 ,  G02B6/005

Abstract: A bar collimator and a backlight system employ diffractive coupling to provide a collimated source of illumination to a backlight. The bar collimator includes a light guide and a diffraction grating disposed on a side of the light guide. The light guide is configured to guide light received from a light source as guided light. The diffraction grating is configured to diffractively couple out a portion of the guided light and to direct the diffractively coupled-out portion toward an input of a backlight as a collimated light having an extent corresponding to a length of the backlight input. A backlight system includes the bar collimator and further includes a light source and a backlight adjacent to the light guide of the bar collimator, the backlight being configured to receive collimated light from a diffraction grating of the bar collimator.

公开(公告)号：US20190018186A1

公开(公告)日：2019-01-17

申请号：US16066292

申请日：2016-07-25

Applicant: LEIA INC.

Inventor： David A. Fattal

IPC: G02B6/12 ,  G02F1/1335 ,  G02B5/18 ,  G02B27/42

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：US10120198B2

公开(公告)日：2018-11-06

申请号：US15253809

申请日：2016-08-31

Applicant: LEIA INC.

Inventor： Charles M. Santori ,  David A. Fattal ,  Marco Fiorentino ,  James A. Brug ,  Zhen Peng

IPC: G02B27/22 ,  G02B27/14 ,  G06T15/00 ,  F21V8/00 ,  G02B27/42

Abstract: A directional backlight is disclosed. The directional backlight has a plurality of light sources to generate a plurality of input planar lightbeams. The plurality of input planar lightbeams illuminates a directional backplane that has a plurality of directional pixels to scatter the plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. The directional backlight can be used to generate a 3D image by specifying the characteristics of the directional pixels in the directional backplane.

公开(公告)号：US20180024289A1

公开(公告)日：2018-01-25

申请号：US15724209

申请日：2017-10-03

Applicant: LEIA INC.

Inventor： David A. Fattal

IPC: F21V8/00

CPC classification number: G02B6/0076 ,  G02B6/0016 ,  G02B6/002 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0045

Abstract: Dual light guide, grating-based backlighting redirects light guided in a first light guide in a first direction into a second light guide in a second direction of a grating-based backlight. A dual light guide, grating-based backlight includes the first light guide, the second light guide and a redirection coupler configured to redirect the guided light beam from the first light guide into the second light guide in the second direction. The dual light guide, grating-based backlight further includes a diffraction grating configured to diffractively couple out a portion of the redirected light beam from the second light guide as a coupled-out light beam directed away from a surface of the second light guide at a predetermined principal angular direction.

公开(公告)号：US09557466B2

公开(公告)日：2017-01-31

申请号：US14814244

申请日：2015-07-30

Applicant: LEIA INC.

Inventor： David A. Fattal

IPC: F21V8/00 ,  G02B27/42

CPC classification number: G02B6/0036 ,  G02B5/1866 ,  G02B6/0018 ,  G02B6/002 ,  G02B6/0031 ,  G02B6/0035 ,  G02B6/0068 ,  G02B27/425 ,  G02B27/4294 ,  H04N13/324

Abstract: Multibeam diffraction grating-based color backlighting includes a plate light guide, a multibeam diffraction grating at a surface of the plate light guide, and light sources laterally displaced from one another in a direction corresponding to a propagation axis of the plate light guide. The light sources produce light of different colors. The plate light guide is to guide light from the light sources. The multibeam diffraction grating is to couple out a portion of the guided light using diffractive coupling as a plurality of light beams of different colors in a plurality of different principal angular directions.

Abstract translation: 基于多光束衍射光栅的彩色背光包括平板光导，平板光导的表面处的多波束衍射光栅以及在对应于平板光导的传播轴的方向上彼此横向移位的光源。 光源产生不同颜色的光。 平板导光板用于引导来自光源的光。 多光束衍射光栅是使用衍射耦合作为在多个不同主角方向上的不同颜色的多个光束来耦合输出的一部分导光。

公开(公告)号：US09389415B2

公开(公告)日：2016-07-12

申请号：US14309601

申请日：2014-06-19

Applicant: LEIA INC.

Inventor： David A. Fattal ,  James A. Brug ,  Zhen Peng ,  Marco Fiorentino ,  Raymond G. Beausoleil

IPC: G02B26/08 ,  G02F1/29 ,  G02B26/00

CPC classification number: G02B26/0808

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

Abstract translation: 公开了一种用于显示屏的定向像素。 方向像素接收平面光束并且包括光传播层和光栅，以将平面光束的一部分散射到具有由光栅控制的方向和角度扩展的定向光束中。

公开(公告)号：US09298168B2

公开(公告)日：2016-03-29

申请号：US14308961

申请日：2014-06-19

Applicant: LEIA INC.

Inventor： Brian Taff ,  David A. Fattal ,  Raymond G. Beausoleil

IPC: G04C17/00 ,  G04C17/02 ,  G04C19/00 ,  G04C19/02 ,  G02F1/03 ,  G02F1/07 ,  G02B5/18 ,  G02F1/1335 ,  G04G9/00 ,  G02B27/22 ,  G03H1/22

CPC classification number: G04G9/0041 ,  G02B5/1819 ,  G02B5/1842 ,  G02B27/2214 ,  G02B27/2242 ,  G02B27/2292 ,  G03H1/2294 ,  G04G9/0035

Abstract: A multiview 3D wrist watch is disclosed. The wrist watch has clock circuitry to determine a time and a plurality of light sources to generate a plurality of input planar lightbeams. A directional backplane having a plurality of directional pixels scatters the plurality of input planar lightbeams into a plurality of directional lightbeams, each directional lightbeam having a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. A shutter layer receives the time from the clock circuitry and modulates the plurality of directional lightbeams to generate a 3D time view.

Abstract translation: 公开了一种多视角3D手表。 手表具有确定时间的时钟电路和多个光源以产生多个输入平面光束。 具有多个方向像素的定向背板将多个输入平面光束散射成多个定向光束，每个定向光束具有由多个方向像素中的方向像素的特性控制的方向和角扩展。 快门层从时钟电路接收时间并且调制多个定向光束以产生3D时间视图。

公开(公告)号：US20160033706A1

公开(公告)日：2016-02-04

申请号：US14882113

申请日：2015-10-13

Applicant: LEIA INC.

Inventor： David A. Fattal ,  James A. Brug ,  Charles M. Santori ,  Marco Fiorentino ,  Zhen Peng

IPC: F21V8/00 ,  G02B27/22

CPC classification number: G02B6/0011 ,  G02B27/22 ,  G02B27/2214 ,  G02F1/133504 ,  G02F1/133615

Abstract: A directional backlight has a directional backplane that has a plurality of directional pixels configured to scatter a plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. A modulation layer having a plurality of modulators configured to modulate the plurality of directional lightbeams. The directional backlight is configured to generate a 3D image with multiple views by specifying the characteristics of the directional pixels in the directional backplane.

Abstract translation: 方向性背光源具有定向背板，该定向背板具有被配置为将多个输入平面光束分散成多个定向光束的多个方向性像素。 每个定向光束具有由多个方向像素中的方向像素的特性控制的方向和角度扩展。 具有多个调制器的调制层，被配置为调制多个定向光束。 定向背光被配置为通过指定定向背板中的方向像素的特性来生成具有多个视图的3D图像。