×

TOUCH PANEL

  • US 20130278080A1
  • Filed: 04/19/2013
  • Published: 10/24/2013
  • Est. Priority Date: 04/23/2012
  • Status: Active Grant
First Claim
Patent Images

1. A touch panel, comprising:

  • a transparent dielectric substrate having a generally rectangular shape;

    a first conductive film formed on a first surface of the dielectric substrate;

    a second conductive film formed on a second surface of the dielectric substrate;

    four electrodes formed at four respective corners of the first conductive film;

    four current detecting units coupled to the four electrodes, respectively; and

    an alternating-current power supply configured to apply alternating-current voltage between the first conductive film and the second conductive film,wherein the alternating-current power supply is electrically coupled to the first conductive film through the four current detecting units and the four electrodes.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×