Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2008-07-29
2008-07-29
Thompson, Timothy J (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C252S581000
Reexamination Certificate
active
07405865
ABSTRACT:
A medium for electrophoretic display using a liquid for electrophoretic display which can reversibly change a visible state by action of an electric field includes a medium comprising each independent structures of microcapsules or cells filled with a liquid for electrophoretic display comprising at least alkylpolyetheramine having a structural unit represented by a specific structural formula, one or more kinds of fine particles, a dispersant and a dispersion liquid medium, wherein the fine particles contain fine particles subjected to surface treatment for making lipophilic. Also, an electrophoretic display device includes a display device comprising a pair of substrates in which a light-transmitting electrode is formed on at least one substrate and the medium for electrophoretic display described above between the substrates.The electrophoretic display medium and the electrophoretic display device each using the above display liquid for electrophoretic display have a high contrast on a display face and can display the contrast with high reliability even in repetitive display, and they are excellent as well in a response.
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Koyama Takao
Ogiwara Yasuaki
Osada Takahiro
Sato Atsushi
Buchanan & Ingersoll & Rooney PC
Mitsubishi Pencil Co. Ltd.
Thompson Timothy J
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