Source: Press Release, Last Accessed: 2021/01/26

If the Institute for Print and Media Technology at Chemnitz University of Technology has its way, many loudspeakers of the future will not only be as thin as paper, but will also sound impressive. This is a reality in the laboratories of the Chemnitz researchers, who back in 2015 developed the multiple award-winning T-Book - a large-format illustrated book equipped with printed electronics. If you turn a page, it begins to sound through a speaker invisibly located inside the sheet of paper.
The aim of their latest project, roll-to-roll printed speaker paper (T-Paper for short), was therefore to convert sheet production into roll production. The final project results were published in the renowned journal Advanced Materials in January 2021.
The potential of loudspeaker paper was extended to other areas of application in the T-Paper project. For example, meter-long loudspeaker installations can now be manufactured in web form or as a circle (T-RING). "In our T-RING prototype, an almost four-meter-long track with 56 individual loudspeakers was connected to form seven segments and shaped into a circle, making a 360° surround sound installation possible," says project manager Georg C. Schmidt. The speaker track, including printed circuitry, weighs just 150 grams and consists of 90 percent conventional paper that can be printed in color on both sides.
The photo, shows Varvara Bachul from the Institute of Print and Media Technology at Chemnitz University of Technology, analyzing the sound generated inside a T-RING. The sounds come from 56 printed individual loudspeakers that are connected to form seven segments on the circular track, which is almost four meters long. (Photo: Jacob Muller)

For more information: T-Paper Project Page

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