[其它] Polychrome Paper Computing

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发表于 2011-12-19 16:28:34 |只看该作者 |倒序浏览

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SIGGRAPH Asia 2011, Hong Kong, China, December 12 – 15, 2011.
ISBN 978-1-4503-0807-6/11/0012
Polychrome Paper Computing
Kohei Tsuji Akira Wakita
Graduate School of Media and Governance, Keio University
5322 Endo Fujisawa-shi Kanagawa, 252-0882, Japan
{tsuji, wakita}@sfc.keio.ac.jp
ABSTRACT
The concept of Polychrome Paper Computing is to enable
dynamic color change on paper without losing thin soft
character of paper. Focusing on polychrome printing
techniques used in traditional paper works such as ukiyo-e
(pictures of the floating world) and calligraphy, we have
developed a paper with dynamic color change. By using
this material, it becomes possible to generate interactive
paper works that can utilize the expressions and techniques
of paper human has developed. The application covers
interactive pictorial art, multi-narrative storytelling, and
instruction media. Polychrome Paper Computing is
expected to be a new color-generating technology which
connects paper and computing seamlessly.
NOVELTY
The environment offers an innovative technology that
realizes the true interactive paper, in which touch sensors
and multicolor generators are embedded. Until now, many
methods for controlling electric parts on the paper substrate
have been proposed (such as blinking LEDs, moving SMAs
and embedding speakers)[1, 2, 3, 4], even though a method
for controlling colors of drawing objects does not exist.
The technique consists of two functions. The color-change
function controls the color of drawing objects by using
liquid crystal ink which is made of microcapsules of liquid
crystal with fascinating structural color. The show-hide
function controls the visibility of drawing objects by using
thermochromic ink. Like a polychrome, circuit and heating
part is printed on the back side, and on the adverse side, a
decoration (outline of image) and a structure to produce the
color is printed (Figure 1). For heating material, carbon
heating paste and medium for resist control are used.
Medium for resist control makes the resistance about twice
by adding in 5% to the object carbon paste. Silver paste is
used for electrode. By printing of these pastes, embedding
of the circuit and heating function retaining paper in thin
shape is enabled. Behind the drawing objects, capacitance
sensor made by copper foil is placed. By using this tape, it
becomes possible to embed sensor part without losing
thinness of paper. This sensor part senses the human touch,
and controls electricity.

WHAT THE USERS WILL SEE AND EXPERIENCE
At the exhibition, users can enjoy the following three
applications. Anabiosis is an interactive pictorial art, in
which user's touch gives the printed butterfly a color. By
touching a butterfly on a piece of paper, this gives a feeling
Figure 1. Color-generating structure. Structure for
color-generating is on the adverse side, heat-generating
and conducting structure is on behind.
of a resurrection by parting a life of human into a butterfly.
Constellation is an interactive star atlas which provides two
layered animation sequence. A color-change layer is
printed on a show-hide layer. Two layers are implemented
to be active at different temperature, which causes the
animation sequence on real papers. Multi-narrative
Storytelling is a prototype of future picture book for
children.
REFERENCES
1. Buechley, L., Hendrix, S., and Eisenberg, M. Paper,
paint, and programs: first steps toward the
computational sketchbook. In Proc. TEI'09, pp.9-12,
2009.
2. Qi, J. and Buechley, L. Electronic popables: exploring
paperbased computing through an interactive pop-up
book. In Proc. TEI'10, pp.21-128, 2010.
3. Coelho, M., Hall, L., Berzowska, J. and Maes, P. Pulp-
Based computing: A framework for building computers
out of paper, in Proc. Ubicomp'07, 2007.
4. Koizumi,N., Yasu,K., Liu,A., Sugimoto,M., Inami,M.
Animated paper: A toolkit for building moving toys.
Comput. Entertain. 8, 2, Article 7 (Dec. 2010), 16 pages.