Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2007-10-23
2007-10-23
Thompson, Timothy J. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S290000, C359S297000
Reexamination Certificate
active
10632171
ABSTRACT:
The present invention is directed to a method for improving the performance of an electrophoretic display, which method comprises adding a fluorinated quaternary nitrogen salt in either the internal phase or the continuous phase in a microencapsulation process for the formation of pigment-containing microparticles. One or more of the following materials may be further added to the internal phase or continuous phase in the microencapsulation process: a fluorinated protective colloid, a second charge controlling agent or a second monomer or oligomer.
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Chen Jing-Den
Gu Haiyan
Liang Rong-Chang
Liao Chih-Yuan
Yu Wenxin
Howrey LLP
SiPix Imaging Inc.
Thompson Timothy J.
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