A research group led by Professor Daihisa Koga and Professor Masaya Nogi of the Institute of Scientific and Industrial Research, Osaka University has succeeded in producing flexible electronic paper using paper.
We have been displaying information on paper by handwriting or printing for about 2000 years, but with the recent spread of electronic paper terminals made of transparent glass or plastic base materials, we have become an information display medium for paper. The current situation is that the value is declining.
Therefore, this time, the research group has combined a new "transparent paper" made of tree cellulose nanofibers with a conventional "white paper" made of cellulose pulp fibers to use electrochromic (EC), which is a type of electronic paper. Developed a display.Conventional paper is insulating and does not have transparency, but by combining a conductive polymer or an ionic liquid, we have succeeded in producing an electrode with excellent transparency and a white electrolyte with excellent visibility.Then, by combining them, a flexible "paper" electronic paper was realized.
With this result, it will be possible to display information not only by handwriting and printing on paper but also by electricity in the future.The research group has also succeeded in developing various electronic device elements such as paper-based memories, transistors, antennas, and supercapacitors.By integrating these technologies, it is expected that paper ebooks will be realized in the future.
