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Image display device with plural data driving circuits for driving the display at different voltage magnitudes and polarity

  • US 5,748,165 A
  • Filed: 12/23/1994
  • Issued: 05/05/1998
  • Est. Priority Date: 12/24/1993
  • Status: Expired due to Term
First Claim
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1. An image display device comprising:

  • a plurality of pixels disposed in a matrix form;

    a plurality of scanning signal lines, each scanning signal line connected to one row of the pixels;

    a plurality of data signal lines, each data signal line connected to one column of the pixels;

    a scanning signal line driving circuit for driving each scanning signal line with a scanning signal;

    a plurality of data signal line driving circuits, each individually powered by a power source of a different voltage magnitude, for applying input video signals of a first polarity to a first group of the data signal lines and applying video signals of a second polarity, different from the first polarity, to a second group of data signal lines, and inverting the polarity of the video signals applied to the first and second groups of the data signal lines in every predetermined data display period; and

    means for switching a connection combination of the plurality of data signal line driving circuits between the first group and the second group of the data signal lines every predetermined data display period by switching connection of terminals of the plurality of data signal line driving circuits between data signal lines belonging to one of the first and second groups and data signal lines belonging to another of the first and second groups every predetermined data display period.

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