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Nanodiamond-dispersed Transparent Screen Developed

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January 30, 2015

Associate Professor Koichi Sakajiri, Associate Professor Masatoshi Tokita, and their colleagues in the Graduate School of Science and Engineering at the Tokyo Institute of Technology developed highly refractive nanodiamond(*) -dispersed film with high transparency and good light diffusion properties. Whereas it is transparent enough to see through, it can be used as a transparent screen to project images - beautifully and without color irregularities.

The film is expected to be used to display ads and other information as necessary on high-rise buildings, show windows, exhibit windows in aquariums and zoos, and head-up displays in vehicles. Made of diamonds, it has a hard, solid surface with resistance to scratching.

Since transparent boards made of glass, plastics and other materials are indispensable for our daily life, the ripple effect of this development is enormous. This outcome was presented at the 63rd Annual Meeting of the Society of Polymer Science held at the Nagoya Congress Center in Atsuta Ward, Nagoya, from May 28 to May 30, 2014.

  • * Nanodiamond:
    a diamond (a material with a diamond crystal structure) with a minimum particle diameter of approximately five nanometers. It is now used in the fields that take its mechanical advantage such as for polishing and enhancing surface abrasion resistance.
Fig: Glass board coated with nanodiamond dispersions
  • Fig:Glass board coated with nanodiamond dispersions
    Left: It shows how crystal clear the board is (the poster behind it can be seen clearly).
    Right: it shows the function of the board as a screen (images can be projected on the screen from behind).

Further information

Associate Professor Masatoshi Tokita
Department of Organic and Polymeric Materials
Graduate School of Science and Engineering
Tokyo Institute of Technology
E-mail mtokita@polymer.titech.ac.jp

Associate Professor Koichi Sakajiri
Department of Organic and Polymeric Materials
Graduate School of Science and Engineering
Tokyo Institute of Technology
E-mail ksakajiri@polymer.titech.ac.jp

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