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公开(公告)号：US20220082749A1
公开(公告)日：2022-03-17
申请号：US17363982
申请日：2021-06-30
发明人： Tanya MALHOTRA , Tingling RAO , Liliana Ruiz Diaz , Oleg Yaroshchuk , Sheng YE , Andrew John Ouderkirk , Alexander Koshelev , Lafe Joseph Purvis, II , Junren Wang , Arman Boromand
IPC分类号： G02B5/30
摘要： A film stack includes a plurality of first films and a plurality of second films alternately stacked. At least one second film of the plurality of second films includes a solid crystal including crystal molecules aligned in a predetermined alignment direction. At least one first film of the plurality of first films includes an alignment structure configured to at least partially align the crystal molecules of the solid crystal in the predetermined alignment direction.
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公开(公告)号：US20210238374A1
公开(公告)日：2021-08-05
申请号：US17142599
申请日：2021-01-06
发明人： Sheng Ye , Renate Eva Klementine Landig , Kenneth Alexander Diest , Andrew John Ouderkirk , Charles Robert Bowman , Robert G. Bowman , William Arthur Hendrickson , Christopher J. Rueb , Lafe Joseph Purvis, II , Wenmo Sun , Ryan Li , Oleg Yaroshchuk , Tingling Rao , Arman Boromand , Churning Zhao , Morteza Khaleghimeybodi
IPC分类号： C08J9/00 , H01L41/09 , H01L41/193 , H01L41/45
摘要： A method of forming a voided polymer includes forming a polymerizable composition containing a polymer precursor and a solid templating agent, forming a coating of the polymerizable composition, processing the coating to form a cured polymer material having a solid phase in a plurality of defined regions, and removing at least a portion of the solid phase from the cured polymer material to form a voided polymer layer.
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公开(公告)号：US20220242100A1
公开(公告)日：2022-08-04
申请号：US17514298
申请日：2021-10-29
摘要： 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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