-
21.发明授权公开(公告)号：US11232729B2
公开(公告)日：2022-01-25
申请号：US17206039
申请日：2021-03-18
Applicant: LEIA INC.
Inventor： David A. Fattal
Abstract: A multiview display and method employ light valves configured to be driven according to a polarity inversion protocol along with multibeam emitters arranged in offset rows. The multiview display includes an array of the multiview pixels comprising the light valves and a multibeam backlight having a plurality of the multibeam emitters arranged in the offset rows. A method of multiview display operation includes emitting directional light beams using an array of multibeam elements in offset rows and modulating the directional light beams using an array of light valves to display an image. Sets of light valves of the light valve array correspond to multiview pixels of the multiview display and the light valve array is driven according to a polarity inversion protocol. In both the multiview display and the method, adjacent offset rows are offset by a distance between repeating polarities of the plurality inversion protocol in a row direction.
-
公开(公告)号：US20210250572A1
公开(公告)日：2021-08-12
申请号：US17239649
申请日：2021-04-25
Applicant: LEIA INC.
Inventor： David A. Fattal
IPC: H04N13/398 , H04N13/351 , H04N13/359 , H04N13/32
Abstract: A contextual lightfield display system and contextual lightfield multiview display provide a plurality of lightfield display modes based on a display context. The contextual lightfield display system includes a multiview display configured to provide the lightfield display modes and a lightfield mode selector configured to determine the display context and to select a lightfield display mode using the determined display context. The contextual lightfield multiview display includes multibeam elements configured to provide directional light beams and light valves configured to modulate the directional light beams as a multiview image. Selectable lightfield display modes may include a stereoscopic three-dimensional (3D) display mode, a unidirectional parallax display mode, a full parallax display mode, and a two-dimensional (2D) display mode.
-
23.发明申请公开(公告)号：US20210209980A1
公开(公告)日：2021-07-08
申请号：US17206039
申请日：2021-03-18
Applicant: LEIA INC.
Inventor： David A. Fattal
Abstract: A multiview display and method employ light valves configured to be driven according to a polarity inversion protocol along with multibeam emitters arranged in offset rows. The multiview display includes an array of the multiview pixels comprising the light valves and a multibeam backlight having a plurality of the multibeam emitters arranged in the offset rows. A method of multiview display operation includes emitting directional light beams using an array of multibeam elements in offset rows and modulating the directional light beams using an array of light valves to display an image. Sets of light valves of the light valve array correspond to multiview pixels of the multiview display and the light valve array is driven according to a polarity inversion protocol. In both the multiview display and the method, adjacent offset rows are offset by a distance between repeating polarities of the plurality inversion protocol in a row direction.
-
公开(公告)号：US11048085B2
公开(公告)日：2021-06-29
申请号：US15755535
申请日：2016-06-30
Applicant: LEIA INC.
Inventor： David A. Fattal
Abstract: A light concentrating backlight includes a light guide to guide light and a diffraction grating configured to diffractively couple out a portion of the guided light as diffractively coupled-out light and to concentrate the diffractively coupled-out light into an eyebox. A near-eye display system includes the light guide and the diffraction grating, and further includes a light valve array configured to modulate the diffractively coupled-out light to form an image in the eyebox. The formed image is configured to be viewable within the eyebox by a user.
-
公开(公告)号：US11048036B2
公开(公告)日：2021-06-29
申请号：US16447884
申请日：2019-06-20
Applicant: LEIA INC.
Inventor： Ming Ma , David A. Fattal
IPC: G02F1/13357 , F21V8/00 , G02B27/42 , G02B30/26
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.
-
Patent Agency Ranking
公开(公告)号：US10969532B2
公开(公告)日：2021-04-06
申请号：US15904404
申请日：2018-02-25
Applicant: LEIA INC.
Inventor： David A. Fattal
Abstract: Time-multiplexed backlighting includes a time-multiplexed light source to provide a light beam having a first non-zero propagation angle during a first time interval and a second non-zero propagation angle during a second time interval. A time-multiplexed backlight includes a light guide configured to guide the light beam and a diffraction grating configured to coupled out a portion of the guided light beam with a different principal angular direction in each of the first time interval and the second time interval. A multiview display includes the time-multiplexed light source and a multibeam backlight to provide coupled-out light beams during each of the first and second time intervals, wherein the principal angular directions of the coupled-out light beams correspond to different view directions of the multiview display.
-
公开(公告)号：US20210072452A1
公开(公告)日：2021-03-11
申请号：US17102175
申请日：2020-11-23
Applicant: LEIA INC.
Inventor： David A. Fattal
IPC: F21V8/00
Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a tilted plurality of light beams having different principal angular directions corresponding to different view directions of a plurality of views of the multiview display. Further, the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views. The multiview backlight includes a light guide and an array of the multibeam elements. The multiview display further includes multiview pixels that include view pixels to modulate the tilted plurality of light beams having the tilt and the different principal angular directions.
-
公开(公告)号：US10928564B2
公开(公告)日：2021-02-23
申请号：US16563758
申请日：2019-09-06
Applicant: LEIA INC.
Inventor： David A. Fattal
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：US10884175B2
公开(公告)日：2021-01-05
申请号：US16024838
申请日：2018-06-30
Applicant: LEIA INC.
Inventor： David A. Fattal
IPC: F21V8/00
Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a tilted plurality of light beams having different principal angular directions corresponding to different view directions of a plurality of views of the multiview display. Further, the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views. The multiview backlight includes a light guide and an array of the multibeam elements. The multiview display further includes multiview pixels that include view pixels to modulate the tilted plurality of light beams having the tilt and the different principal angular directions.
-
公开(公告)号：US10810917B2
公开(公告)日：2020-10-20
申请号：US15866372
申请日：2018-01-09
Applicant: LEIA INC.
Inventor： David A. Fattal
Abstract: A dual layer backlight employs a first planar backlight to emit light and a second planar backlight to provide a plurality of coupled-out light beams. The second planar backlight includes a plate light guide and a multibeam diffraction grating configured to diffractively couple out a portion of a guided light beam within the plate light guide as the plurality of coupled-out light beams. A light beam of the coupled-out light beam has a different principal angular direction from other light beams of the coupled-out light beam plurality. A two-dimensional/three-dimensional (2D/3D) mode-switchable electronic display includes the dual layer backlight and a light valve array configured to selectively modulate emitted light as 2D pixels in a first mode and the coupled-out light beams as 3D pixels corresponding to the different 3D views in a second mode of the electronic display.
-
-
-
-
-
-
-
-
-
Search Results
259
records
(took 0.025 seconds)
