Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2005-06-30
2008-08-19
Mack, Ricky (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C345S107000, C430S032000
Reexamination Certificate
active
07414776
ABSTRACT:
A display medium for an electrophoretic display device includes a liquid system, at least one thermally reversible gelling agent, and at least one set of particles exhibiting a color. Inclusion of the gelling agent enables an image formed in the display device at an elevated temperature of about or above the melting point of the gelling agent to be fixed in a gel state, e.g., at temperature of about or below a gel point of the gelling agent. The image thus has stability, even in the absence of an applied electrophoretic field.
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Chopra Naveen
Hu Nan-Xing
Kazmaier Peter M.
Liu Ping
Tam Man-Chung
Mack Ricky
Oliff & Berridg,e PLC
Thomas Brandi N
Xerox Corporation
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