Drive for cholesteric liquid crystal displays

Computer graphics processing and selective visual display system – Plural physical display element control system – Segmented display elements

Reexamination Certificate

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Details

C345S038000, C345S051000, C345S054000

Reexamination Certificate

active

07116287

ABSTRACT:
Apparatus for driving a cholesteric liquid crystal display wherein the display includes cholesteric liquid crystals having a first planar reflective state and a second transparent focal conic state, which is respectively responsive to different applied fields; an addressing structure having rows and columns of conductors arranged so that when a column and a row overlap, they define a selectable pixel or segment to be viewable or non-viewable; the apparatus being adapted to switch between a first and a second fixed voltage.

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