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公开(公告)号：US11880103B2
公开(公告)日：2024-01-23
申请号：US17709791
申请日：2022-03-31
Applicant: Meta Platforms Technologies, LLC
Inventor： Jasmine Soria Sears , Afsoon Jamali , Yun-Han Lee
IPC: G02F1/1333 , G02F1/137 , G02F1/01 , G02B27/01
CPC classification number: G02F1/133382 , G02F1/0126 , G02F1/137 , G02F1/133308 , G02B27/0172 , G02F2202/14
Abstract: An optical element includes a first boundary layer and a second boundary layer. A solution is disposed between the first boundary layer and the second boundary layer. The solution includes liquid crystals co-mingled with oblong photochromic dye molecules. The photochromic dye molecules are matched to the liquid crystals to offset a decrease in absorption of the photochromic dye molecules in response to a temperature increase of the photochromic dye molecules.
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公开(公告)号：US11754870B2
公开(公告)日：2023-09-12
申请号：US17944183
申请日：2022-09-13
Applicant: Meta Platforms Technologies, LLC
Inventor： Junren Wang , Yuge Huang , Yun-Han Lee , Lu Lu
IPC: G02F1/1334 , G02F1/1337 , G02F1/13363
CPC classification number: G02F1/13342 , G02F1/13363 , G02F1/133707
Abstract: A device is provided. The device includes a polarization hologram polymer layer having a wavy surface, an optic axis of the polarization hologram polymer layer being configured with a spatially varying orientation in a first predetermined in-plane direction. The device also includes a compensation layer disposed at the wavy surface of the polarization hologram polymer layer and configured to compensate for the wavy surface in shape.
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公开(公告)号：US11619774B2
公开(公告)日：2023-04-04
申请号：US17383245
申请日：2021-07-22
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Jacques Gollier , Fenglin Peng , Alexander Koshelev , Giuseppe Calafiore , Lu Lu , Ying Geng , Yun-Han Lee
Abstract: An illuminator for a display panel includes a light source for providing a light beam and a lightguide coupled to the light source for receiving and propagating the light beam along the substrate. The lightguide includes an array of out-coupling gratings that runs parallel to the array of pixels for out-coupling portions of the light beam from the lightguide such that the out-coupled light beam portions propagate through the substrate and produce an array of optical power density peaks at the array of pixels due to Talbot effect. A period of the array of peaks is an integer multiple of a pitch of the array of pixels.
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公开(公告)号：US11467331B1
公开(公告)日：2022-10-11
申请号：US16666823
申请日：2019-10-29
Applicant: Meta Platforms Technologies, LLC
Inventor： Yun-Han Lee , Lu Lu , Mengfei Wang , Fenglin Peng , Junren Wang , Oleg Yaroshchuk , Yingfei Jiang , Babak Amirsolaimani , Scott Charles Mceldowney
Abstract: An optical device includes a display configured to generate an image light; and a waveguide optically coupled with the display and configured to guide the image light to an exit pupil of the optical device. The waveguide includes an in-coupling element configured to couple the image light into the waveguide, and an out-coupling element configured to decouple the image light out of the waveguide. The out-coupling element includes a grating having a diffraction efficiency gradient along a predetermined direction at a plane of the grating.
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公开(公告)号：US20240345437A1
公开(公告)日：2024-10-17
申请号：US18613563
申请日：2024-03-22
Applicant: Meta Platforms Technologies, LLC
Inventor： Shenglin Ye , Xinyu Zhu , Xiangtong Li , Yu-Jen Wang , Yun-Han Lee , Linghui Rao
IPC: G02F1/13357 , G02F1/1335 , G02F1/1362
CPC classification number: G02F1/133611 , G02F1/133607 , G02F1/136222 , G02F1/136286
Abstract: A liquid crystal display (LCD) system for a head mounted display includes an LCD panel and a backlight unit. The LCD panel includes a color filter on array (COA) configuration. The backlight unit includes a light adjustment layer to adjust at least one characteristic of illumination light from a light source to tune the illumination light for enlarging an emission cone of display light.
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Patent Agency Ranking
公开(公告)号：US12092850B2
公开(公告)日：2024-09-17
申请号：US17073249
申请日：2020-10-16
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Lu Lu , Xiayu Feng , Mengfei Wang , Hao Yu , Ryan Li , Yun-Han Lee , Junren Wang , Barry David Silverstein
CPC classification number: G02B5/32 , G02B5/203 , G02B5/3016 , G03H1/0248 , G03H1/0402 , G03H2001/0413 , G03H2001/0439 , G03H2260/12
Abstract: A first layer of anisotropic material extends along a first plane and includes anisotropic components being parallel to a second plane non-parallel and non-perpendicular to the first plane. The anisotropic components are arranged in cycloidal or helical patterns. The cycloidal or helical patterns define one or more Bragg planes that are non-parallel and non-perpendicular to the first plane and either substantially parallel or substantially perpendicular to the second plane.
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公开(公告)号：US11874474B1
公开(公告)日：2024-01-16
申请号：US17018579
申请日：2020-09-11
Applicant: Meta Platforms Technologies, LLC
Inventor： Yun-Han Lee , Mengfei Wang , Junren Wang , Lu Lu , Robin Sharma , Gregory Olegovic Andreev , Garam Young , Andrew John Ouderkirk , Babak Amirsolaimani , Fenglin Peng , Barry David Silverstein
CPC classification number: G02B27/0179 , G02B27/0172 , G02B27/283 , G02B27/286 , G02B27/4205 , G02F1/31 , H04N23/55 , H04N23/75 , G02B2027/011 , G02B2027/0138 , G02B2027/0187 , G02F2203/01 , G02F2203/07 , G02F2203/24
Abstract: A system includes a diffractive optical element including at least one substrate and a grating structure. The grating structure is configured to diffract a first light having an incidence angle within a predetermined range, and the at least one substrate is configured to reflect a second light. The system also includes a polarization selective mechanism configured to generate images based on the first light and the second light, respectively.
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公开(公告)号：US11740471B2
公开(公告)日：2023-08-29
申请号：US17401160
申请日：2021-08-12
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Fenglin Peng , Ying Geng , Lu Lu , Yun-Han Lee , Alexander Koshelev , Giuseppe Calafiore , Jacques Gollier
IPC: G02F1/1335 , G02B27/01 , F21V8/00 , G02F1/13357
CPC classification number: G02B27/0172 , G02B6/005 , G02B6/0078 , G02B27/0179 , G02F1/133536 , G02F1/133553 , G02B2027/0178 , G02B2027/0187 , G02F1/133524 , G02F1/133526 , G02F1/133606 , G02F1/133621
Abstract: A display device with a transparent illuminator and an liquid crystal (LC) display panel is disclosed. The transparent illuminator includes a light source and a transparent lightguide, which may be based on a slab of transparent material with zigzag light propagation of the illuminating light in the slab and/or a transparent photonic integrated circuit with singlemode ridge waveguides for spreading the illuminating light in a plane parallel to the plane of LC display panel. The lightguide includes a plurality of grating out-couplers whose position is coordinated with positions of LC pixels for higher throughput. A reflective offset-to-angle optical element may be provided to form an image in angular domain through the LC panel and through the transparent illuminator, resulting in an overall compact and efficient display configuration.
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公开(公告)号：US11650429B2
公开(公告)日：2023-05-16
申请号：US17671348
申请日：2022-02-14
Applicant: Meta Platforms Technologies, LLC
Inventor： Junren Wang , Mengfei Wang , Yun-Han Lee , Yuge Huang , Lu Lu , Barry David Silverstein
CPC classification number: G02B27/286 , G02B5/1814 , G02B5/1833 , G02B5/3016 , G02B27/0172 , G02B27/30 , G02B2027/0123 , G02B2027/0138 , G02B2027/0178 , G02B2027/0187
Abstract: A polarization conversion device includes a geometric phase grating and an angular selective waveplate. The geometric phase grating includes a first liquid crystal layer and is configured to diffract a unpolarized or partially polarized incident light beam into a first light beam and a second light beam (e.g., in two different diffraction orders). The first light beam is characterized by a first polarization state and propagates in a first direction. The second light beam is characterized by a second polarization state and propagates in a second direction. The angular selective waveplate includes a second liquid crystal layer, and functions as a zero or full-wave plate for the first light beam incident in the first direction and a half-wave plate for the second light beam incident in the second direction.
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公开(公告)号：US11635624B1
公开(公告)日：2023-04-25
申请号：US17135994
申请日：2020-12-28
Applicant: Meta Platforms Technologies, LLC
Inventor： Babak Amirsolaimani , Scott Charles McEldowney , Yun-Han Lee , Lu Lu
Abstract: A device includes a light guide and at least one in-coupling element configured to couple an image light into the light guide. The device also includes a first out-coupling element configured to couple a first portion of the image light out of the light guide as a plurality of first output lights. The device further includes a second out-coupling element spaced apart from the first out-coupling element by a distance and configured to couple a second portion the image light out of the light guide as a plurality of second output lights. The second output lights are substantially non-overlapping with the first output lights.
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