Welcome!

Welcome to the official website of the VIP+ project T-paper carried out by the Institute for Print and Media Technology at Technische Universität Chemnitz, Germany.

Basic facts

  • Main aim: roll-to-roll printed loudspeaker paper
  • Funding scheme: VIP+ by Federal Ministry of Education and Research (BMBF)
  • Duration: 01/05/2017 – 30/04/2020
  • Budget: 1.37 Mio. EUR

News

New T-PAPER video by TU Chemnitz

Finally we can present our T-RING prototype! In the new T-PAPER video you can see one of the final applications which could be realized with paper-based piezoelectric loudspeakers. A 360° surround-sound installation can be used in exhibition booth as well as for acoustic accompaniment of museum exhibits.

Our scientific paper in Advanced Materials

T-PAPER team published their new scientific paper on „Paper-Embedded Roll-to-Roll Mass Printed Piezoelectric Transducers“ in Advanced Materials.  Georg C. Schmidt and co-authors could realize an innovative concept for large-area piezoelectric devices on paper made by means of cost efficient roll-to-roll mass printing. Also post printing technologies including inline poling were realized at the Institute for Print …

DAGA cancelled

Unfortunately DAGA 2020 was cancelled in according to the latest recommendation of the Ministry of Health in connection with the corona virus. Nevertheless, we want to present our latest prototype as soon as possible. We will keep you updated!

T-Paper

pmTUC has developed a technology which allows the manufacturing of loudspeakers solely by means of conventional mass printing technologies on flexible substrates like foil or even paper. More precisely, we are talking about printed piezoelectric loudspeakers, i.e. a piezoelectric crystal transfers an applied AC voltage to a mechanical deformation and a vibration of the whole substrate. If the frequency of the AC signal is in the frequency range of 20 Hz to 20 kHz, audible sound is generated.

In our case a piezoelectric polymer is sandwiched between two organic electrodes, i.e. we have truly fully plastic speakers without magnets. All layers can be printed step by step on a substrate but thanks to new developments during the last three years, we are now able to integrate all electronic layers within a special paper – the tone paper – or shorter T-paper – was born making it possible to print on both sides of the paper color pictures or whatever you are used to print (or write) on paper. The printed electronics part keeps hidden and invisible.

At the starting point of this project, the realisation of the T-paper is based on a semi-automatic sheetfed process with low efficiency and throughput. However, first applications could be successfully demonstrated like the T-book in 2015 – a unique photo book with speaking images.

Now, main aim of the VIP+ project T-paper is to transfer the inefficient sheetfed manufacturing to a high-throughput roll-to-roll pilot line at one of pmTUC’s R2R printing presses. This includes the development and validation of a stable R2R printing process of all functional layers, the inline polarisation of the piezoelectric material but also post-press technologies like lamination and folding.

pmTUC

Based on a long tradition in conventional printing press engineering, the Institute for Print and Media Technology at Chemnitz University of Technology (pmTUC) has established itself as a research and teaching institution which combines traditional paper-based media and new digital technologies. Cooperation and scientific partnerships with many well-known companies of the national and international media, electronics and chemicals industry prove the esteem for the scientific work of the pmTUC, headed by Prof. Dr. Arved C. Hübler. Webpage: http://www.tu-chemnitz.de/pm

Contact us!

We are keen on getting your inquiries, your ideas for cooperation and your valuable feedback! If you would like to get into contact with us, please fill in the following form. Thanks!