An ultra-slim speaker incorporating a new sandwich-type magnetic circuit has been designed, making the speaker slimmer than a traditional one. The rigid diaphragm and the planar voice coil suppress the diaphragm's unwanted vibration mode and reproduces high quality sound. This slim speaker is suitable for flat-panel display televisions.
['Hiroyuki Takewa', 'Shuji Saiki', 'Sawako Kano', 'Atsushi Inaba']
Slim-type speaker for flat-panel televisions