At the moment, flexible displays can no longer be called a rarity. Yes, there are still no devices based on them, but the technology is actively developing. Another thing is flexible speakers, whose technology seems even more complex, because the softness of the potential material from which these speakers can be performed, imposes significant limitations in obtaining sound. However, Fujifilm has created a special Beat membrane, thanks to which all these limitations can be circumvented.
The basis of such a membrane is a polymer that becomes soft when any deforming actions are performed with it (for example, it is rolled into a tube). And it becomes hard when frequencies from 20 Hz to 20 kHz are passed through it - approximately in the same range normal speakers work. Piezoelectric ceramics, which is used here, is responsible for the reproduction of the sound itself.
Fujiutsu hasn’t been able to license this technology yet. But the company has already shown some options for its use, for example, in folding dynamics and a special folding block (like a scroll in the folded state), which can be seen in the picture above.
However, if the day soon comes when we can carry portable speakers folded into a compact tube (or other shape) in our pockets, we already know who to thank for it.
Source: Techon.nikkeibp.co.jp
The article is based on materials .
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