Patent ID: 8395595
Filing Date: 2013-03-12
Classification: G02F,G06F

Abstract:
1. A touch sensor for locating an external input point on an operating plane, which expands in an X direction and in a Y direction, by an electrostatic capacitive coupling technique, the touch sensor comprising: a first location sensing transparent conductive film having electrical conductivity, which is provided parallel to the operating plane and which is electrically connected to a Y coordinate detecting conductive portion for detecting a coordinate of the input point in the Y direction; a second location sensing transparent conductive film having electrical conductivity, which is provided so as to face the first location sensing transparent conductive film and which is electrically connected to an X coordinate detecting conductive portion for detecting a coordinate of the input point in the X direction; a dielectric layer, which is provided between the first and second location sensing transparent conductive films; and a switching circuit for selectively applying a predetermined voltage to one of the first and second location sensing transparent conductive films, wherein a display panel, of which the display plane is provided with the touch sensor, is provided for a display device, wherein the display panel includes: