ELECTRONIC PEN FOR DETECTING A TOUCH LOCATION, A TOUCH LOCATION DETECTING METHOD AND A TOUCH LOCATION DETECTING APPARATUS, CAPABLE OF DETECTING AN INFRARED RAY GENERATED IN A DISPLAY PANEL

摘要

PURPOSE: An electronic pen for detecting a touch location, a touch location detecting method and a touch location detecting apparatus are provided to enhance the resolution.;CONSTITUTION: An infrared sensor(10) senses the infrared ray, and creates a sensing signal. An amplifier(20) amplifies the sensing signal. An LPF(Low Pass Filter)(30) filters the high frequency element of the amplified sensing signal. A location detecting unit(40) detects the touched location in a display panel by the touch location detecting electronic pen. In case the filtered sensing signal is over the standard value, the touch location detecting electronic pen determines a touch.;COPYRIGHT KIPO 2011