METHOD AND APPARATUS FOR DRIVING A REFLECTIVE IMAGE DISPLAY
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United States of America Patent
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Issued Date -
Apr 28, 2016
app pub date -
Dec 16, 2015
filing date -
Oct 7, 2014
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Abstract
The application generally relates to driving reflective image displays utilizing frustration of total internal reflection (TIR) in high brightness, wide viewing angle displays. In one embodiment, a passive matrix driven reflective image display includes a third electrode. The third electrode, which may be perforated, may be positioned within the gap between the front and rear electrodes. The third electrode allows passage of light absorbing electrophoretically mobile particles therethrough. By controlling the voltage biases of the three electrodes, a threshold may be created to impart bistability in the display. Modulating the voltage of the three electrodes also creates pathways for particle movement between the electrodes.
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