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Display apparatus and touch detection apparatus using shift of detection operation for reduced detection time

  • US 9,501,196 B2
  • Filed: 03/13/2016
  • Issued: 11/22/2016
  • Est. Priority Date: 05/19/2009
  • Status: Active Grant
First Claim
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1. A display apparatus, comprising:

  • a display face;

    a display function layer adapted to display image data on the display face in response to an input image signal;

    a plurality of driving electrodes disposed separately in one direction;

    a detection scanning control section configured to apply a detection driving voltage simultaneously to some of the plurality of driving electrodes and carry out detection scanning while shifting application of the detection driving voltage in the one direction and control the detection scanning such that jump shifts are performed at a pitch of two times or more of an arrangement pitch of the driving electrodes;

    a plurality of sensor lines disposed separately in a direction different from the one direction and responding to touch or proximity of a detection object with or to the display face to exhibit an electric variation, whereinin the jump shifts, the detection scanning control section applies the detection driving voltage to some of the plurality of driving electrodes, anda shift amount between successive jump shifts performed by the detection scanning control section is greater than the arrangement pitch of the plurality of driving electrodes; and

    further wherein a region defined by a group composed of the some of the plurality of driving electrodes to which the detection driving voltage is applied includes a plurality of sensor lines and a plurality of driving electrodes so that detection scanning is completed in a fraction of time required for display scanning.

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