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Roll up, roll up

作者:漆雕遐    发布时间:2019-03-07 02:11:12    

Loudspeakers that can be folded or rolled up have been developed by the Korean Advanced Institute of Science and Technology. The loudspeakers feature a thin film of piezoelectric material which vibrates when fed electric audio signals. Previous attempts to develop piezo diaphragms have produced tinny-sounding loudspeakers because low-frequency vibrations cause the metal electrodes to break away from the film. The researchers have solved the problem by using platinum electrodes and a special bonding technique,

 

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