|Kyocera's world thinnest speaker|
Kyocera employed ceramic piezoelectric elements instead of magnet coils for its world’s thinnest speaker. A speaker that utilizes piezoelectric elements cannot be used for audiovisual devices because of the narrow range and low output. The company piled up thin films of piezoelectric element in six-eight layers to increase the output, and covered them with a specially-developed soft resin film to amplify sound. Although the existing the coil speaker is built in downward, Kyocera’s new speaker can be built in in the front face and gives listeners clear sound even in a distant place. Demand for thin speakers is expected to grow as the business of organic EL TVs and 4K TVs is scheduled to gain momentum in 2014.