Displays Based on Dynamic Scattering

Selected pixels (those intended to be driven from scattering to clear) in the row being scanned received Vs-f-Vo (typically about 30-40 V in 12 xm thick cells), while unselected pixels received in-phase pulses (Vg- when not being scanned, the pixels received only Vd. The act of scanning in subsequent rows had no effect on the contrast of previous rows. A line of information could be written in 2 ms. Special high voltage drivers (350 V) were designed for this task [69]. A keyboard entry mode was also 

The advent of STN displays and cheaper active matrix addressed displays took over this market, although it has been considered several times subsequently for other market sectors, but without a product being made. 

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