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On the front page the reader finds the book’s title and Ducky the duck with an illuminated green head lamp. There is also a QR code integrated in the university's logo. The information of the code is the homepage of the interactive book. It contains the information of Behind the Book.Interaction between Book and Reader
Ducky the duck and especially the green lamp in Ducky's head lamp shall attract potential readers. The lamp in the book's cover works as eye-catcher and demonstrates that this is not a normal but an interactive book containing printing electronics on almost every double page. The reader needs a smart phone containing a datamatrix code app, for example Barcode.The Printed Electronic Elements Behind
The OLED is connected to a battery charger and the rechargeable batteries. The battery charger is powered by RFID and contains also a printed capacitor, resistant and inductor.
In addition to these printed components a conventional diode is also used. The voltage of the RFID battery charge depends on the distance between the printed antenna and the reader. The battery drops the current to a defined level and protects the OLED from destruction by high voltage. The current lines are printed by inkjet printing.