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1.发明公开公开(公告)号：US20230273495A1
公开(公告)日：2023-08-31
申请号：US18171719
申请日：2023-02-21
发明人： Haiyan GU , Yuriy Borisovich MATUS , Bryan Hans CHAN , HongMei ZANG , Donald A. SCHULTZ , Craig LIN
IPC分类号： G02F1/167 , G02F1/1681 , G02F1/1676 , G02F1/1685 , B32B7/12 , B32B38/06 , B32B27/30 , B32B27/28 , B32B3/30
CPC分类号： G02F1/167 , G02F1/1681 , G02F1/1676 , G02F1/1685 , B32B7/12 , B32B38/06 , B32B27/304 , B32B27/302 , B32B27/286 , B32B3/30 , B32B27/14
摘要： Low-profile piezo-electrophoretic films and display films including low profile piezo-electrophoretic films. In some embodiments, the piezoelectric material of the piezo-electrophoretic films can be patterned with high-voltage electric fields after fabrication of the piezo-electrophoretic films. Such films are useful as security markers, authentication films, or sensors. The films are generally flexible. Some films are less than 100 μm in thickness. Displays formed from the films do not require an external power source.
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公开(公告)号：US20230324761A1
公开(公告)日：2023-10-12
申请号：US18296625
申请日：2023-04-06
发明人： Yuriy Borisovich MATUS , Chandra Bikram KC , Saemi Oh POELMA , Haiyan GU , Donald A. SCHULTZ , Abraham BERHANE
IPC分类号： G02F1/1679 , G02F1/16766 , G02F1/167 , G02F1/1333 , B42D25/36 , B42D25/21
CPC分类号： G02F1/1679 , G02F1/16766 , G02F1/167 , G02F1/133394 , B42D25/36 , B42D25/21
摘要： The present invention is directed to a sealing layer that comprises a combination of polyurethane and poly(vinyl alcohol), the poly(vinyl alcohol) containing an acetoacetate functional group in its molecular structure. The sealing layer is formed from an aqueous sealing composition and shows water resistance and good barrier properties to non-polar fluids. The sealing layer can be used to seal microcells of electro-optic displays.
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公开(公告)号：US20230358625A1
公开(公告)日：2023-11-09
申请号：US18309995
申请日：2023-05-01
摘要： Gravity-actuated display systems suitable for use as security markers, for example to incorporate into bank notes. The devices can be made very thin and flexible, yet are robust enough to endure the harsh conditions of paper currency in general circulation. Because the displays are gravity actuated, they do not require a power source or circuitry. The gravity-actuated displays can be fabricated using microembossing or photolithography and can be filled and sealed using roll-to-roll techniques. The microcells can also be patterned to provide custom designs, such as official seals.
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4.发明公开公开(公告)号：US20230276710A1
公开(公告)日：2023-08-31
申请号：US18172368
申请日：2023-02-22
发明人： Yuriy Borisovich MATUS , Haiyan GU , Ali SARVI
IPC分类号： H10N30/857 , H10N30/00 , G02F1/1676 , G02F1/1343 , G02F1/16757 , G02F1/167 , C08F14/22 , C08K5/55 , C08J5/18
CPC分类号： H10N30/857 , H10N30/1051 , G02F1/1676 , G02F1/13439 , G02F1/16757 , G02F1/167 , C08F14/22 , C08K5/55 , C08J5/18 , C08J2327/16
摘要： Piezoelectric films including ionic liquids and methods of making piezoelectric films including ionic liquids. The resulting films have higher levels of beta phase and can be poled using external fields without additional treatment, such as stretching. The films are light-transparent. In some embodiments, the piezoelectric material is used to create piezo-electrophoretic films that can be patterned for use as security markers, authentication films, or sensors. The films are generally flexible. Some films are less than 100 μm in thickness. Electrophoretic displays formed from the piezoelectric films do not require an external power source.
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