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公开(公告)号:US12282222B1
公开(公告)日:2025-04-22
申请号:US18493738
申请日:2023-10-24
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor: Sheng Ye , Ryan Li , Tingling Rao , Lafe Joseph Purvis, II , Oleg Yaroshchuk , Tanya Malhotra , Andrew John Ouderkirk
IPC: G02F1/1333 , C08J5/18 , C09K19/12 , C09K19/18 , C09K19/20 , C09K19/22 , C09K19/24 , C09K19/30 , C09K19/34 , C09K19/36 , G02F1/1335 , C09K19/58
Abstract: An optical film includes a plurality of helically arranged liquid crystals and organic solid crystal structures at least partially surrounding the plurality of helically arranged liquid crystals. A method of making the optical film includes obtaining a substrate with an alignment layer and a film of a first solution on the alignment layer. The first solution includes liquid crystals and organic crystal molecules. The liquid crystals form a plurality of helically arranged liquid crystals on the alignment layer. The method also includes forming organic solid crystal structures by crystallizing the organic crystal molecules. The organic solid crystal structures at least partially surround the plurality of helically arranged liquid crystals.
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公开(公告)号:US12276772B1
公开(公告)日:2025-04-15
申请号:US18493734
申请日:2023-10-24
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor: Sheng Ye , Li Yao , Tingling Rao , Lafe Joseph Purvis, II , Tanya Malhotra , Andrew John Ouderkirk , Arman Boromand
IPC: G02F1/1333 , C09K19/02 , C09K19/38 , G02B1/08 , G02B5/30 , G02F1/1335
Abstract: An optical film includes a block copolymer film defining a plurality of helically shaped cavities and a plurality of helically shaped organic solid crystals positioned within the plurality of helically shaped cavities. A method of making the optical film includes obtaining a film of a block copolymer solution including a chiral block copolymer and a non-chiral block copolymer on a substrate. The method includes annealing the film, thereby forming a plurality of helical structures from the chiral block copolymer defined within the non-chiral block copolymer and removing the plurality of helical structures, thereby creating a plurality of helically shaped cavities. The method further includes forming organic solid crystals inside the plurality of helically shaped cavities, thereby forming the optical film.
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公开(公告)号:US20250093563A1
公开(公告)日:2025-03-20
申请号:US18732070
申请日:2024-06-03
Applicant: Meta Platforms Technologies, LLC
Inventor: Zhimin Shi , Zhaoyu Nie , Sheng Ye , Arman Boromand , Xiayu Feng , Andrew John Ouderkirk
IPC: G02B5/30
Abstract: An optical element includes a display device and an angular occlusion filter disposed over at least one surface of the display device. The angular occlusion filter may be configured to modulate one or more of transmission, reflection, and polarization of image or ambient light incident upon the display device.
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公开(公告)号:US12140730B2
公开(公告)日:2024-11-12
申请号:US17369861
申请日:2021-07-07
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor: Tingling Rao , Tanya Malhotra , Andrew John Ouderkirk , Lafe Joseph Purvis, II , Sandeep Rekhi , Arman Boromand , Sheng Ye , Oleg Yaroshchuk , Anurag Tyagi
Abstract: An optical film includes an organic solid crystal film formed of a contiguous organic solid crystal having a first dimension no less than 100 micrometer and a second dimension distinct from the first dimension no less than one centimeter. Methods for making the organic solid crystal film are also described.
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公开(公告)号:US20240210611A1
公开(公告)日:2024-06-27
申请号:US18371780
申请日:2023-09-22
Applicant: Meta Platforms Technologies, LLC
Inventor: Miaomiao Xu , Ying Geng , Sheng Ye , Andrew John Ouderkirk , Liliana Ruiz Diaz , Zhaoyu Nie
CPC classification number: G02B6/0055 , G02B27/0172 , G02B2027/0178
Abstract: A lightguide with partially reflective slanted polarization-selective bulk mirrors is disclosed. The lightguide may be used in a near-eye display with a polarized image source. The polarization-selective bulk mirrors reflect light of the polarized image source, and fully transmit light of the orthogonal polarization, causing the mirrors to be less conspicuous to an external viewer while preserving high efficiency of delivery of the image light to the viewer.
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公开(公告)号:US20240142677A1
公开(公告)日:2024-05-02
申请号:US18483141
申请日:2023-10-09
Applicant: Meta Platforms Technologies, LLC
Inventor: Zhaoyu Nie , Sheng Ye , Liliana Ruiz Diaz , Weihua Gao , Spencer Allan Wells , Andrew John Ouderkirk , Arman Boromand , Junren Wang , Tingling Rao , Lafe Joseph Purvis, II , Hend Baza
IPC: G02B5/20
CPC classification number: G02B5/20
Abstract: A notched filter includes a multilayer having alternating first and second polymer layers, the first polymer layers each including an isotropic polymer thin film having in-plane refractive indices n1x and n1y, and the second polymer layers each including an isotropic or anisotropic polymer thin film having in-plane refractive indices n2x and n2y, where a thickness of each successive first polymer layer decreases with increasing distance from a centerline of the multilayer, and a thickness of each successive second polymer layer increases with increasing distance from the centerline. Such a filter may be configured to reflect incident light having a desired polarization state within a predetermined and relatively narrow band.
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公开(公告)号:US20240121882A1
公开(公告)日:2024-04-11
申请号:US18378010
申请日:2023-10-09
Applicant: Meta Platforms Technologies, LLC
Inventor: Brian Toleno , Michael Nikkhoo , Arman Boromand , Sheng Ye , Andrew John Ouderkirk , Jonathan Robert Peterson
CPC classification number: H05K1/0209 , H05K1/113 , H05K1/145 , H05K3/368 , H05K2201/10378
Abstract: A thermoplastic interposer formed of ordered polymer sheets that may be configured to act as an interconnect and as a thermal energy spreader. In examples, the thermoplastic interposer may include one or more extensions or wings to further dissipate heat. In examples, laser direct structuring (LDS) may be used to form or more through silicon vias (TSVs) or through-chip vias. In examples, the ordered polymer sheets may be extruded via a roll-to-roll process, stacked, and processed to form a laminate interposer structure that makes up the interposer. In examples, the thermoplastic interposer may be used in multi-layer structures interconnecting two or more board assemblies such as printed circuit boards (PCB)s.
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公开(公告)号:US20240026099A1
公开(公告)日:2024-01-25
申请号:US18061843
申请日:2022-12-05
Applicant: Meta Platforms Technologies, LLC
Inventor: Hao Mei , Arman Boromand , Sheng Ye , Christopher Yuan Ting Liao , Rongzhi Huang , Andrew John Ouderkirk
CPC classification number: C08J5/18 , B29C48/022 , C08F10/02 , C08L23/06 , C09K5/14 , B29K2023/06 , B29C48/0011 , B29C48/0018 , B29C48/08
Abstract: A polymer thin film includes polyethylene having a molecular weight of at least approximately 250,000 g/mol, and has an elastic modulus of at least approximately 25 GPa, a tensile strength of at least approximately 0.8 GPa, and a thermal conductivity of at least approximately 5 W/mK. Formation of the polymer thin film may include forming a polymer solution from a crystallizable polyethylene and a liquid solvent, forming a gel from the polymer solution, forming a polymer thin film from the gel by calendering or solid state extrusion, and stretching the polymer thin film.
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公开(公告)号:US11878493B2
公开(公告)日:2024-01-23
申请号:US17843138
申请日:2022-06-17
Applicant: Meta Platforms Technologies, LLC
Inventor: Arman Boromand , Sheng Ye , Andrew John Ouderkirk , Christopher Stipe
CPC classification number: B32B27/32 , B32B7/12 , B32B27/08 , B32B27/20 , B32B27/322 , G06F3/011 , G06T19/006 , B32B2305/026 , B32B2305/28 , B32B2307/4026 , B32B2307/412 , B32B2307/416
Abstract: A polymer bilayer includes a layer of a porous fluoropolymer directly overlying a layer of polyethylene. The polyethylene layer may be porous or dense and may include an ultra-high molecular weight polymer. The polymer bilayer may be co-integrated with structures (e.g., wearable devices) exposed to high thermal loads (>0-1000 W/m2) and provide passive cooling thereof. For instance, passive cooling of AR/VR glasses under different solar loads may be achieved by a polymer bilayer that is both highly reflective across solar heating wavelengths and highly emissive in the long-wavelength infrared. The high reflectance decreases energy absorption across the solar spectrum while the high emissivity promotes radiative heat transfer to the surroundings.
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公开(公告)号:US20230234345A1
公开(公告)日:2023-07-27
申请号:US18179927
申请日:2023-03-07
Applicant: Meta Platforms Technologies, LLC
Inventor: Sheng Ye , Andrew John Ouderkirk, II , Li Yao , Lafe Joseph Purvis, II , Arman Boromand
CPC classification number: B32B27/20 , B32B27/08 , B29C48/022 , B29C48/08 , B32B7/023 , B29C48/21 , B32B2551/00 , B29L2009/00
Abstract: An optically anisotropic polymer thin film includes a crystallizable polymer and an additive configured to interact with the polymer (e.g., via π-π interactions) to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 50% of the molecular weight of the crystallizable polymer. Example crystallizable polymers include polyethylene naphthalate, polyethylene terephthalate, polybutylene naphthalate, polybutylene terephthalate, as well as derivatives thereof. Example additives, which may occupy up to approximately 10 wt. % of the polymer thin film, include aromatic ester oligomers, aromatic amide oligomers, and polycyclic aromatic hydrocarbons, for example. The optically anisotropic polymer thin film may be characterized by a refractive index greater than approximately 1.7 and an in-plane birefringence greater than approximately 0.2.
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