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公开(公告)号：US11796716B1
公开(公告)日：2023-10-24
申请号：US17384332
申请日：2021-07-23
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 , G02B1/08 , C09K19/02 , G02B5/30 , C09K19/38 , G02F1/1335
CPC classification number: G02B1/08 , C09K19/02 , C09K19/38 , G02B5/3025 , G02F1/133526 , G02F1/133528 , C09K2219/03 , C09K2323/031 , G02F2202/022
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：US20230194951A1
公开(公告)日：2023-06-22
申请号：US18048991
申请日：2022-10-24
Applicant: Meta Platforms Technologies, LLC
Inventor： Lafe Joseph Purvis, II , Tingling Rao , Andrew John Ouderkirk , Arman Boromand , Kimberly Kay Childress , Ehsan Vadiee , Namseok Park
IPC: G02F1/295
CPC classification number: G02F1/2955
Abstract: An optical diffraction grating includes a layer of organic solid crystal (OSC) material, an input photonic element configured to couple an input beam to the organic solid crystal material, and an output photonic element configured to receive an output beam from the organic solid crystal material. An applied voltage may be used to control the refractive index of the OSC material and accordingly tune the operation of the optical diffraction grating.
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公开(公告)号：US11628656B2
公开(公告)日：2023-04-18
申请号：US17514298
申请日：2021-10-29
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Sheng Ye , Andrew John Ouderkirk , Li Yao , Lafe Joseph Purvis, II , Arman Boromand
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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公开(公告)号：US20220350065A1
公开(公告)日：2022-11-03
申请号：US17582580
申请日：2022-01-24
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Tingling Rao , Yuge Huang , Lafe Joseph Purvis, II , Kimberly Kay Childress , Arman Boromand , Tanya Malhotra , Andrew John Ouderkirk , Lu Lu , Poer Sung
Abstract: A multilayer organic thin film includes a plurality of biaxially-oriented layers, where each layer is characterized by mutually orthogonal refractive indices, n1≠n2≠n3. In example structures, the corresponding in-plane refractive indices of adjacent layers may be rotated with respect to each other by a predetermined angle. Such a multilayer may be incorporated into a circular reflective polarizer, for example, which may be used in display systems to provide high broadband efficiency and high off-axis contrast. In an example process, individual organic thin films may be molded, and then oriented and stacked to form a multilayer.
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公开(公告)号：US20240240007A1
公开(公告)日：2024-07-18
申请号：US18454499
申请日：2023-08-23
Applicant: Meta Platforms Technologies, LLC
Inventor： Sheng Ye , Abhirup Dutta , Hao Mei , Lafe Joseph Purvis, II , Arman Boromand , Jing Chen , Andrew John Ouderkirk , Kristy Alana Jost
CPC classification number: C08L27/16 , B29C71/0081 , B29C71/02 , B29C2071/022 , B29K2027/16
Abstract: A polymer article includes an at least partially disentangled polyvinylidene fluoride (PVDF) family member composition and is characterized by an elastic modulus of at least 4 GPa and an electromechanical coupling factor (k31) of at least 0.1 at room temperature. A method of manufacturing such a polymer article may include forming an at least partially disentangled polymer composition into a polymer thin film or fiber, applying a tensile stress to the polymer article in an amount effective to induce a stretch ratio of at least approximately 5 in the thin film or fiber, and applying an electric field across a thickness dimension of the polymer article. Annealing and poling steps may separately or simultaneously accompany and/or follow the act of stretching.
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Patent Agency Ranking
公开(公告)号：US12024793B2
公开(公告)日：2024-07-02
申请号：US17676940
申请日：2022-02-22
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Tingling Rao , Kimberly Kay Childress , Arman Boromand , Lafe Joseph Purvis, II , Ehsan Vadiee , Namseok Park , Andrew John Ouderkirk
CPC classification number: C30B29/54 , C30B19/106 , C30B29/64 , C30B35/002
Abstract: An organic thin film includes an organic crystalline phase, where the organic crystalline phase defines a surface having a surface roughness (Ra) of less than approximately 10 micrometers over an area of at least approximately 1 cm2. The organic thin film may be manufactured from an organic precursor and a non-volatile medium material that is configured to mediate the surface roughness of the organic crystalline phase during crystal nucleation and growth. The thin film may be formed using a suitably shaped mold, for example, and the non-volatile medium material may be disposed between a layer of the organic precursor and the mold during processing.
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公开(公告)号：US20230193505A1
公开(公告)日：2023-06-22
申请号：US18051236
申请日：2022-10-31
Applicant: Meta Platforms Technologies, LLC
Inventor： Tingling Rao , Kimberly Kay Childress , Arman Boromand , Lafe Joseph Purvis, II , Ryan Crisp , Keith Eugene Hoffman , Namseok Park , Andrew John Ouderkirk
Abstract: A method of forming an organic solid crystal (OSC) thin film includes forming a layer of molecular feedstock over a surface of a substrate, the molecular feedstock including an organic solid crystal precursor, forming crystal nuclei from the organic solid crystal precursor within a nucleation region of the layer of molecular feedstock, and growing the crystal nuclei to form the organic solid crystal thin film.
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公开(公告)号：US20230037175A1
公开(公告)日：2023-02-02
申请号：US17676940
申请日：2022-02-22
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Tingling Rao , Kimberly Kay Childress , Arman Boromand , Lafe Joseph Purvis, II , Ehsan Vadiee , Namseok Park , Andrew John Ouderkirk
Abstract: An organic thin film includes an organic crystalline phase, where the organic crystalline phase defines a surface having a surface roughness (Ra) of less than approximately 10 micrometers over an area of at least approximately 1 cm2. The organic thin film may be manufactured from an organic precursor and a non-volatile medium material that is configured to mediate the surface roughness of the organic crystalline phase during crystal nucleation and growth. The thin film may be formed using a suitably shaped mold, for example, and the non-volatile medium material may be disposed between a layer of the organic precursor and the mold during processing.
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公开(公告)号：US20220342219A1
公开(公告)日：2022-10-27
申请号：US17672444
申请日：2022-02-15
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Poer Sung , Guohua Wei , Tingling Rao , Lafe Joseph Purvis, II , Kimberly Kay Childress , Aman Boromand , Andrew John Ouderkirk , Matthew E. Colburn
Abstract: A system comprising (1) at least one optical element having a nonplanar surface, (2) at least one photonic integrated circuit disposed on the nonplanar surface of the optical element, the photonic integrated circuit comprising (A) an optical core that contains an optically anisotropic organic material and (B) a cladding disposed over the optical core. Various other apparatuses, systems, and methods are also disclosed.
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公开(公告)号：US20250081719A1
公开(公告)日：2025-03-06
申请号：US18543061
申请日：2023-12-18
Applicant: Meta Platforms Technologies, LLC
Inventor： Lafe Joseph Purvis, II , Russell J. Holmes , Tingling Rao , Andrew John Ouderkirk , Kimberly Kay Childress , Sang Gil Youm , Carl Daniel Frisbie
Abstract: A device includes a light-emitting diode having an emissive surface, where the emissive surface includes a doped organic solid crystal. The light-emitting diode may include an organic light-emitting diode (OLED). The doped organic solid crystal may be a single crystal.
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