Murata has developed a sensor device using high-transparency organic piezoelectric film. As his film can also detect twisting motion, and therefore there is high expectation for its application to various human machine interfaces. The high-transparency organic piezoelectric film has the following characteristics: (1) high piezoelectric output constant; (2) high transparency (light beam transmittance of 98% or higher [according to the internal haze measurement]); and (3) free from pyroelectric effect. Murata has newly developed devices that apply this piezoelectric film, such as a Leaf Grip Remote Controller that can control the TV using a bending and twisting motion.
This Leaf Grip Remote Controller has a very new conceptual design that enables it to operate by bending and twisting of a plate made of piezoelectric films that can detect such motions. Furthermore, it uses pigments to discharge electrons when it receives light and is assembled with a photovoltaic cell that converts light into electricity to provide it with a battery-less feature.