Ferroelectric liquid crystal displays with greyscale

Ferroelectric liquid crystal displays with greyscale

  • CN 1,149,921 A
  • Filed: 04/10/1995
  • Published: 05/14/1997
  • Est. Priority Date: 04/11/1994
  • Status: Abandoned Application
First Claim
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1. many address pixels method of a bistable liquid crystal display, this display provides the array of the addressable pixel of a kind of m * n by the point of crossing that is distributed in m group electrode on the smectic liquid crystal material layer and n group electrode and constitutes, and the step that comprises is:

  • Generation is used to be applied to m and n the waveform on this m, the n electrode, and this waveform comprises the potential pulse with various dc amplitudes and symbol;

    Apply a m waveform to each electrode in m group electrode in order, apply a kind of waveform suitable in two kinds of n waveforms to n group electrode simultaneously, enter required state so that carry out addressing along each pixel of m electrode pair of appointment;

    It is characterized in that the step that comprises has;

    In the frame time of appointment, each pixel is carried out the first time, the second time or more times addressing, in conjunction with after the gating waveform of a kind of data waveform in two kinds of data waveforms or before, carrying out addressing by applying the blanking waveform, is the addressing time in the time that applies between blanking waveform and the gating waveform;

    AndThe addressing time of change in a frame time with the time relevant to each address pixels, be provided between the different gray-scale values required gray scale intensities at interval.

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