APPLICATION NOTE 5296

An Easy-to-Understand Explanation of Calibration in Touch-Screen Systems

By: Faisal Tariq

Abstract: Mechanical misalignment and scaling factors lead to a mismatch between the values coming from a touch screen panel (as translated by a touch screen controller) and the display (typically an LCD) on which the touch screen panel is mounted. This tutorial discusses how to calibrate the touch screen panel to match the display.