TOUCH SCREEN DEVICE AND METHOD FOR DRIVING THEREOF, AND PORTABLE ELECTRONIC DEVICE COMPRISING THE SAME

摘要

Disclosed is a touch screen device that may include first and second substrates; a plurality of first electrode lines and a plurality of second electrode lines on the first substrate that cross each other to define a plurality of touch sensors, each touch sensor including first and second electrodes, and an elastic resistor, with a gap space between the second electrode and the elastic resistor; and a touch driver that is electrically connected to at least one of the plurality of first electrode lines and the plurality of second electrode lines, and that determines a two-dimensional or three-dimensional touch information depending on an amount of force that is applied to the touch screen device.

主权项

1. A touch screen device comprising:
first and second substrates; a plurality of first electrode lines crossing a plurality of second electrode lines to define a plurality of touch sensors between the first and second substrates, each touch sensor including first and second electrodes, and an elastic resistor, with a gap space between the second electrode and the elastic resistor; a touch driver that is electrically connected to the plurality of first electrode lines and the plurality of second electrode lines, and that determines a two-dimensional touch information based on a change of capacitance between the first electrode and the second electrode or a three-dimensional touch information based on a change of resistance between the first electrode and the second electrode, depending on an amount of force that is applied to the touch screen device, wherein the touch driver further comprises, a memory that stores a first sensing data on the change of capacitance; and a touch control part that detects a touch force event by monitoring and comparing the stored first sensing data with a threshold value, and that changes a first logic state of an event detection signal for measuring the two-dimensional touch information to a second logic state of the event detection signal for measuring the three-dimensional information, when the touch force event is detected.