×

Touch sensor and display device

  • US 10,139,963 B2
  • Filed: 03/26/2014
  • Issued: 11/27/2018
  • Est. Priority Date: 06/30/2009
  • Status: Active Grant
First Claim
Patent Images

1. A touch sensor comprising:

  • a plurality of electrodes including a plurality of common electrodes;

    a detection circuit applying a drive signal to at least one of the electrodes to output a detection result based on a detection signal obtained from the electrodes in response to the drive signal; and

    a controller operating to change a range of electric lines of force generated by the electrodes, whereinthe controller causes a change in a maximum range of the electric lines of force in accordance with the detection result,the electrodes have a plurality of first electrodes extending along a first direction and a plurality of second electrodes extending along a second direction perpendicular to the first direction, andthe controller causes a pixel voltage of a pixel to be higher than an off voltage of a gate of a corresponding pixel TFT, after applying a drive signal to at least one of the common electrodes.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×