Piezoelectric film
AssigneeDaikin Industries, Ltd.
InventorsMasaharu Arimoto, Saori Sakami, Tetsuhiro Kodani, Takashi Kanemura
Life of this patent
Estimating the term…
Abstract
An object is to provide an organic piezoelectric film with a high level of piezoelectricity, a high level of transparency, and a low level of retardation. The organic piezoelectric film of the present disclosure has a total light transmittance of 90% or more, an internal haze value of 0.2%/μm or less per unit film thickness or an internal haze value of 4% or less, piezoelectric constant d33 of 13 pC/N or more, and a retardation within the range of 0.01 to 10 nm/μm per unit film thickness or a retardation within the range of 0.1 to 900 nm.
Claims8
An organic piezoelectric film, having
- a total light transmittance of 90% or more,
- an internal haze value of 0.2%/μm or less per unit film thickness,
- a piezoelectric constant d33 of 14 pC/N or more,
- a retardation within the range of 0.01 to 10 nm/μm per unit film thickness, and
- a film thickness of 1 to 1000 μm.
An organic piezoelectric film having
- a total light transmittance of 90% or more,
- an internal haze value of 4% or less,
- a piezoelectric constant d33 of 14 pC/N or more,
- a retardation within the range of 0.1 to 900 nm, and
- a film thickness of 1 to 1000 μm.
Dependencies are inferred from the claim text.