This news release is intended for media purposes, and is current of the date of publication. Information is subject to change without notice.
KYOCERA Develops Ultra-Thin, Lightweight ‘Piezo Film Speaker’ for TVs, PCs, Tablets
High audio quality “Smart Sonic Sound” utilized in flat-screen TV for first time
This innovative piezo actuator audio technology is being utilized in a flat-screen television for the first time*1 by LG Electronics, Inc. in the company’s new 55” curved-screen OLED TV. Smart Sonic Sound comes in three different sizes (large, medium and small), and Kyocera plans to expand its use in a broad range of applications including digital devices and automotive applications with strict weight requirements.
This is the second audio innovation from Kyocera in recent years. The company launched the award-winning Smart Sonic Receiver® in early 2012, revolutionizing how sounds are heard exclusively on Kyocera mobile phones for the Japan and U.S. markets. Smart Sonic Receiver uses a ceramic actuator to send vibrations via tissue conduction and traditional air conduction through display screens without the need for a traditional earpiece or loudspeaker, making it ideal for clear audio in exceptionally noisy environments. The new Smart Sonic Sound technology uses the same base technology but with a different implementation that amplifies air conduction.
|Smart Sonic Sound component in small, medium and large (left), |
with a thickness of just 1mm (right)
Currently there is a growing demand for even further downsizing (thickness and weight) of flat-screen TVs, PCs and other digital devices. However, up until now there has been a limit to the achievable thinness of such devices due to the size of conventionally-used cone-shaped electromagnetic speakers, which has confined design and engineering layouts. Furthermore, as organic light-emitting displays (OLED) and 4K high-definition screens create a superior visual experience, it has become necessary for audio technology to rise to new heights as well.
1. Ultra-thin, lightweight size allows flexibility in end-product design
|Frequency range||200Hz - 20kHz||500Hz - 20kHz||800Hz - 20kHz|
2. Low directivity, and high responsivity create a high-quality audio experience
3. No rare earth elements used
Kyocera will continue to develop new applications for the use of its piezo film speaker, helping to contribute to the further downsizing of electronic equipment.
Other products using Kyocera piezo actuators
Kyocera has developed a range of piezo actuator products using the company’s proprietary technology. Among the wide range of applications, some notable examples include: actuators*2 for diesel-engine vehicles requiring high reliability; actuators*3 in the world’s fastest inkjet printhead*4 used for on-demand printing applications; as well as Kyocera’s Smart Sonic Receiver.
*1 The world’s first use of a ceramic piezoelectric actuator as the sound device for a flat-screen television. As of July 31, 2013; based on research by Kyocera.
*2 These actuators control fuel injection, thus enhancing fuel efficiency and reducing emissions.
*3 These actuators are used to control the ejection of ink drops in inkjet printheads.
*4 As of July 31, 2013; based on research by Kyocera.
“Smart Sonic” and “Smart Sonic Receiver” are trademarks of Kyocera Corporation registered in Japan.