Apparatus and methods for reversible imaging of nonemissive display systems
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United States of America Patent
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Sep 18, 2001
Grant Date -
N/A
app pub date -
Jul 10, 1998
filing date -
Jan 12, 1998
priority date (Note) -
In Force
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Abstract
A writing head capable of rapidly and efficiently generating high field gradients while remaining amenable to low-voltage control utilizes a piezoelectric or Rosen transformer. A one- or two-dimensional array of such writing heads may be used to address a substrate bearing an arrangement of electrically responsive, nonemissive display elements, applying an image pattern thereto. Similarly, the array of writing heads can be used to remove an image, returning the substrate to its original, unimaged state.
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