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公开(公告)号：US20240360304A1
公开(公告)日：2024-10-31
申请号：US18767613
申请日：2024-07-09
申请人： E Ink Corporation
IPC分类号： C08L29/04 , C09D129/04 , G09G3/34
CPC分类号： C08L29/04 , C09D129/04 , G09G3/344 , C08L2203/206 , C08L2312/00
摘要： The present invention is directed to a electro-optic device comprising microcells having a sealing layer, the sealing layer comprising a poly(vinyl alcohol) homopolymer or poly(vinyl alcohol-co-ethylene) copolymer and a polyurethane. The scaling layer shows good barrier properties to a non-polar fluid and low moisture absorption. The sealing layer can be used to seal microcells of electro-optic devices.
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2.发明公开公开(公告)号：US20240004255A1
公开(公告)日：2024-01-04
申请号：US18339470
申请日：2023-06-22
申请人： E Ink Corporation
IPC分类号： G02F1/1679 , C08L23/08
CPC分类号： G02F1/1679 , C08L23/0869 , C08L2203/162 , C08L2205/03
摘要： The present invention is directed to an aqueous sealing composition that comprises a combination of polymers, a poly(vinyl alcohol) homopolymer or poly(vinyl alcohol-co-ethylene) copolymer, a polyurethane, and a rheology modifier in an aqueous carrier. The aqueous sealing composition may be used to form a low-defect sealing film in electro-optic devices having an electro-optic material layer, comprising (a) a plurality of microcells filled with charged particles and a non-polar fluid and (b) a sealing film, wherein the electro-optic material layer is disposed between two electrode layers. The corresponding electro-optic devices exhibit good electro-optic performance.
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