Patent ID: 8228312
Filing Date: 2012-07-24
Classification: G06F

Abstract:
1. A position detecting device comprising: an input section including a capacitive touch sensor pattern and an electromagnetic resonance (EMR) sensor pattern overlaid with each other, the EMR sensor pattern including one or more coils configured to electromagnetically couple with a resonant circuit included in an EMR position indicator to detect a position indicated by the EMR position indicator on or above the EMR sensor pattern; wherein the capacitive touch sensor pattern includes electrodes configured to capacitively couple with a capacitive position indicator; and wherein at least some of the electrodes are each provided with one or more slits, each slit has an open end and a closed end, and all of the slit(s) provided in each electrode extend toward an outer edge of said electrode to have their open end(s) exposed, so as to pass through electromagnetic flux associated with the EMR sensor pattern to thereby reduce generation of eddy current in the capacitive touch sensor pattern due to the electromagnetic flux.