Particle use for image display media, image display panel using the particles, and image display device
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United States of America Patent
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Jun 26, 2007
Grant Date -
Jul 6, 2006
app pub date -
Apr 2, 2004
filing date -
Apr 2, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An image display device, in which image display media are sealed between opposed substrates, at least one of two substrates being transparent, and in which the image display media, to which an electrostatic field is applied, are made to move so as to display an image. A construction of particles used as the image display media is improved (the first, second, fourth, fifth, sixth, eighth and ninth aspects of the invention), and a material of the particles used as the image display media is improved (the third, seventh and tenth aspects of the invention). Whiteness of the particles and a liquid powder using the particles is improved, particle agglutination is prevented, and the charge property is controlled. Moreover, durability is improved such that a contrast of the image display during a repetition display is not decreased. As a result, an excellent image display can be achieved.
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