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http://dx.doi.org/10.4313/JKEM.2012.25.3.224

A Study of Fabrication and Estimation Passive Matrix Display Using Electronic Bead  

Oh, Yoo-Mi (Department of Electrica and Computer Engineering, University of Seoul)
Park, Sun-Woo (Department of Electrica and Computer Engineering, University of Seoul)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.25, no.3, 2012 , pp. 224-228 More about this Journal
Abstract
We have developed new materials that lead to methyl meth acrylate monomer and styrene monomer to using polymerization method. The materials have a powder form and show liquid behavior. We call the "Electronic Bead". An our experiment, a positive-charged particle has $TiO_2$, polymer and CCA(-), while a negative-charged particle consists of carbon black, polymer and CCA(+). The charged particles have electrical characteristic of white -10 uC/g and black 10 uC/g, respectively. Also, these particles have good fluidity by additive of nano-sized silica. Using these materials, we demonstrated prototype displays that have $320{\times}320$ array of pixels and 6-in-diagonal viewable image size, driven by passive-matrix addressing. The reflectivity shows about 30% even though our experiment is at the beginning point. Also, the panel has contrast ratio 6:1. We think there are many chances to improve reflectivity through modifying components of particle resin, mixture ratio of each particle, panel structure and so on.
Keywords
Electronic bead; PMMA; PS; CCA; Silica; Q/M;
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  • Reference
1 T. Z. Kosc, Optics & Photonics News, 18 (2005).
2 R. Sakurai, S. Ohno, Y. Masuda, and R. Hattori, SID Symposium Digest Papers (San Francisco, USA, 2006) p. 1992.
3 T. Kitamura, Asia Display, IDW'04, 1721 (2004).
4 S. Yamamoto, M. Tatsumi, H. F. Mark, N. M. Bikales, C. G. Overberger, G. Menges, and J. I. Kroschwitz, eds., (Encyclopedia of Polymer Science and Engineering Wiley-Interscience, New York, 1988) p. 453.
5 A. D. Jenkins, in Vinyl Polymerization, Part 1 (G. E. Ham, Ed.) (Marcel Dekker, New York, 1967) p. 219.
6 Y. M. Oh, K. S. Kim, S. W. Kim, H. S. Youn, C. J. Kim, K. W. Chae, and S. W. Park (IWFPE2010 Workshop, DSSC-p9, Korea, 2010) p. 151.