| 摘要 |
<p>The present invention relates to a stylus pen, a touch input system using the same, and a method for detecting touch capable of detecting touch so as to discriminate touch by a stylus pen without a battery and touch by a finger and increasing the writing pressure detection efficiency and performance of the stylus pen. The present invention includes: a sensor panel having a plurality of first channels and second channels which cross each other; a stylus pen including a plurality of primary coils, which are connected to one or each other in serial, a resonance capacitor which is connected to the primary coil in parallel, and a conductive tip which is connected to the primary coil; a grounding unit which is connected to the stylus pen; an antenna loop which is formed on the outside of the sensor panel; and a touch controller which is connected to the first channel, the second channel, and the antenna loop.</p> |
