发明名称 |
ELECTROACOUSTIC CONVERTER FILM, FLEXIBLE DISPLAY, VOCAL CORD MICROPHONE, AND MUSICAL INSTRUMENT SENSOR |
摘要 |
Provided is an electroacoustic converter film including: a polymeric composite piezoelectric body having piezoelectric particles dispersed in a viscoelastic matrix which is formed of a polymer material exhibiting viscoelasticity at ordinary temperatures; thin film electrodes formed on both sides of the polymeric composite piezoelectric body; and protective layers formed on surfaces of the thin film electrodes. The electroacoustic converter film serves as a speaker capable of being integrated with a flexible display without impairing lightweightness or flexibility, and has considerable frequency dispersion in the storage modulus and also has a local maximum of the loss tangent around ordinary temperatures. A flexible display, a vocal cord microphone and a musical instrument sensor, in each of which the electroacoustic converter film is used, are also provided. |
申请公布号 |
US2014210309(A1) |
申请公布日期 |
2014.07.31 |
申请号 |
US201414229606 |
申请日期 |
2014.03.28 |
申请人 |
FUJIFILM Corporation |
发明人 |
MIYOSHI Tetsu |
分类号 |
H01L41/08 |
主分类号 |
H01L41/08 |
代理机构 |
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代理人 |
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主权项 |
1. An electroacoustic converter film, comprising: a polymeric composite piezoelectric body having piezoelectric particles dispersed in a viscoelastic matrix which is formed of a polymer material exhibiting viscoelasticity at ordinary temperatures; thin film electrodes formed on both sides of the polymeric composite piezoelectric body; and protective layers formed on surfaces of the thin film electrodes. |
地址 |
Tokyo JP |