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Volume: 22 | Article ID: art00042_2
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Reexamination of Origin of Electric Charge on Migration Particles Used for Electrophoretic Displays
Kazuhiro Nakayama
Makoto Omodani
  DOI :  10.2352/ISSN.2169-4451.2006.22.1.art00042_2  Published Online :  January 2006
Abstract

Few reports have presented a comprehensive theoretical analysis of the migration mechanism in electrophoretic display. Theories for aqueous liquids are usually applied to explain the migration mechanism, although electrophoretic displays use non-aqueous liquids. As a result, there are no reasonable guidelines for choosing appropriate materials of particles or liquids for electrophoretic displays. We focus here on the roles of the few ions contained in the liquid used for electrophoretic displays; the role of the ions is essential in determining the migration mechanism in aqueous liquids. We examine the influence of ion density in non-aqueous liquids on the characteristics of electrophoretic migration, and reveal that mobility increases when the density of ions in the liquids is reduced; this result cannot be explained by the conventional theory created for aqueous liquids. Our examination also reveals that migration particles have the same polarities in the liquids as in air. Our conclusion doesn't agree with the conventional explanation of the migration mechanism of electrophoretic displays, which adopts the theory intended for aqueous liquids.

Journal Title : NIP & Digital Fabrication Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/ISSN.2169-4451.2006.22.1.art00042_2
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Kazuhiro Nakayama, Makoto Omodani, "Reexamination of Origin of Electric Charge on Migration Particles Used for Electrophoretic Displays"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP22),  2006,  pp 481 - 484,  https://doi.org/10.2352/ISSN.2169-4451.2006.22.1.art00042_2

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Copyright © Society for Imaging Science and Technology 2006
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NIP & Digital Fabrication Conference
nip digi fabric conf
2169-4451
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2169-4451(20060101)2006:2L.481;1-
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Articles
Reexamination of Origin of Electric Charge on Migration Particles Used for Electrophoretic Displays
NakayamaKazuhiro
OmodaniMakoto
01012006
2006
2
481
484
2006
Few reports have presented a comprehensive theoretical analysis of the migration mechanism in electrophoretic display. Theories for aqueous liquids are usually applied to explain the migration mechanism, although electrophoretic displays use non-aqueous liquids. As a result, there are no reasonable guidelines for choosing appropriate materials of particles or liquids for electrophoretic displays. We focus here on the roles of the few ions contained in the liquid used for electrophoretic displays; the role of the ions is essential in determining the migration mechanism in aqueous liquids. We examine the influence of ion density in non-aqueous liquids on the characteristics of electrophoretic migration, and reveal that mobility increases when the density of ions in the liquids is reduced; this result cannot be explained by the conventional theory created for aqueous liquids. Our examination also reveals that migration particles have the same polarities in the liquids as in air. Our conclusion doesn't agree with the conventional explanation of the migration mechanism of electrophoretic displays, which adopts the theory intended for aqueous liquids.