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ELECTROPHORETIC DISPLAY DEVICE, METHOD OF DRIVING THE SAME, AND ELECTRONIC APPARATUS

  • US 20090189849A1
  • Filed: 12/09/2008
  • Published: 07/30/2009
  • Est. Priority Date: 01/25/2008
  • Status: Active Grant
First Claim
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1. An electrophoretic display device comprising:

  • a pair of first and second substrates;

    an electrophoretic element which is interposed between the first and second substrates and includes a dispersion medium containing electrophoretic particles;

    a plurality of pixel electrodes which are formed on the first substrate;

    a common electrode which is formed opposite the plurality of pixel electrodes on the second substrate;

    an image signal supply unit which supplies an image signal having a first potential or a second potential lower than the first potential to the plurality of pixel electrodes in accordance with image data; and

    a common potential supply unit which supplies a common potential to the common electrode,wherein the image signal supply unit supplies the image signal to the plurality of pixel electrodes in each of a predetermined number of frame periods in an image signal supply period containing the predetermined number of frame periods in accordance with the image data associated with the same frame image as the image data, andwherein the common potential supply unit switches the common potential into a third potential equal to or lower than the first potential and higher than the second potential and a fourth potential lower than the third potential and equal to or higher than the second potential, and supplies the switched potentials to the common electrode in each of the frame periods in the image signal supply period.

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