Kyocera has announced the commercialization of an ultra-thin, lightweight piezo film speaker, called “Smart Sonic Sound”.
The speaker is being produced in three sizes: small, medium and large. The medium size speaker weighs 7g and is 1mm thick, yet can create the same audio volume as a conventional electromagnetic speaker.
“In the middle, you can see a white ceramic part called a piezo element, which vibrates when electricity is applied. When the audio signal comes in, it creates a wave, which is transmitted to the film. That makes the film resonate, so you get a loud sound. The film can’t be too soft or hard, so getting the balance right requires technical know-how.”
This speaker is being used in the new 55″ curved-screen OLED TV from LG. This is the first time in the world piezo actuator audio technology has been used in a flat-screen TV. [Continue reading…]
Source: AkihabaraNews