Capacitive Active Pen Theory And Structure

孙心海（1979），男，本科，产品应用工程师，主要从事电容式触摸屏技术应用

陈东坡，博士，副研究员，硕士生导师

Abstract：With smart phones, tablet PCs explosive growth, gradually widespread use of the stylus , the stylus performance requirements are also increasing. For active capacitive stylus precision, sensitivity, writing fluency, anti-jamming capability in-depth study has important theoretical significance and engineering application value. Active Capacitive Stylus Pen is available in capacitive touch screen system hardware based on the high-precision, low cost, excellent user experience stylus program . Unlike ordinary passive capacitive pen , capacitive pen itself is equivalent to the active signal emission source , touch screen capacitive stylus sensor to receive signals and measure the X, Y, Z coordinates, so you can achieve results similar to the actual thickness of the nib . Also in the capacitive pen to add pressure sensor that allows users to write pen can sense the intensity of the changes, which may be more changes in writing to change the intensity of the thickness of handwriting , to excellent effect user experience .

Keywords： capacitive touch screen ITO mutual capacitance touch active pen