公开(公告)号：US20230397500A1

公开(公告)日：2023-12-07

申请号：US18250474

申请日：2021-10-18

申请人： Kureha Corporation

发明人： Makoto IMAJI ,  Kei YAMAGUCHI ,  Sho HAYAKAWA

IPC分类号： H10N30/88 ,  C08J7/04 ,  C08J7/044 ,  H10N30/30 ,  H10N30/857 ,  H10N30/01

CPC分类号： H10N30/883 ,  C08J7/0427 ,  C08J7/044 ,  H10N30/302 ,  H10N30/857 ,  H10N30/01 ,  C08J2327/16 ,  G06F3/041

摘要： Provided is a piezoelectric film capable of sufficiently exhibiting both piezoelectric properties and transparency. A piezoelectric film including, by stacking: a transparent piezoelectric base film made of a fluororesin; and
a transparent coating layer having a thickness of 0.20 to 2.5 μm, wherein the transparent coating layer forms an interface with the transparent piezoelectric base film over an entire region overlapping the transparent piezoelectric base film.