Liquid crystal display, data signal generator, and method of addressing a liquid crystal display
AssigneeSharp Kabushiki Kaisha
InventorsPaul Bonnett, Akira Tagawa, Michael John Towler
Life of this patent
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Abstract
A ferroelectric liquid crystal display contains data electrodes connected to a data signal generator and strobe electrodes connected to a strobe signal generator. The strobe signal generator supplies strobe signals Vs1 to Vs4 in sequence to the strobe electrodes and the data signal generator supplies data signals Vd1 to Vd4 simultaneously and in synchronism with the strobe signals so as to refresh sequentially the rows of pixels formed at the intersections of the data electrodes and the strobe electrodes. Each data signal is selected from a plurality having the same polarity behaviour with respect to time, the same RMS voltage, and no net DC component.
Claims14
A bistable liquid crystal display comprising:
- a plurality of data electrodes;
- a plurality of strobe electrodes;
- a plurality of liquid crystal pixels formed at intersections between the data electrodes and the strobe electrodes;
- a strobe signal generator arranged to supply strobe signals sequentially to the strobe electrodes;
- and a data signal generator arranged to supply any selected one of a plurality of different data signals to each of the data electrodes in synchronism with the strobe signals, wherein the data signals have the same polarity behaviour with respect to time.
A data signal generator for a liquid crystal display of the type comprising:
- a plurality of data electrodes;
- a plurality of strobe electrodes;
- and a plurality of liquid crystal pixels formed at intersections between the data electrodes and the strobe electrodes, wherein the data signal generator is arranged to produce any selected one of a plurality of different data signals having the same polarity behaviour with respect to time.
A method of addressing a liquid crystal display of the type comprising:
- a plurality of data electrodes;
- a plurality of strobe electrodes;
- and a plurality of liquid crystal pixels formed at intersections between the data electrodes and the strobe electrodes, the method comprising supplying strobe signals sequentially to the strobe electrodes and supplying any selected one of a plurality of different data signals to each of the data electrodes in synchronism with the strobe signals, the data signals having the same polarity behaviour with respect to time.
Dependencies are inferred from the claim text.