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Electro-optical element driving circuit, electro-optical device, and electronic device

  • US 6,392,354 B1
  • Filed: 12/09/1999
  • Issued: 05/21/2002
  • Est. Priority Date: 05/20/1998
  • Status: Expired due to Fees
First Claim
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1. An electro-optical device comprising:

  • a plurality of data inputting lines corresponding to a bit number;

    a plurality of signal lines for supplying signals to a plurality of electro-optical elements;

    a plurality of digital processing elements for performing digital processing of digital driving signals supplied from the plurality of data inputting lines, the plurality of digital processing elements corresponding to each of the plurality of signal lines;

    a plurality of voltage transforming elements each of which transforms a digital voltage supplied from each of the digital processing elements; and

    a plurality of digital/analog converting elements each of which converts an output of each of the plurality of voltage transforming elements into an analog driving signal, wherein the plurality of digital/analog converting elements comprise a plurality of analog switches and a plurality of capacitance elements, wherein capacitances of the capacitor elements are mutually different, and wherein, if n and u are respectively, a natural number and an arbitrary unit of capacitance, a capacitance of a capacitor element corresponding to nth bit among the plurality of capacitor elements is expressed by 2n−

    1
    u.

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