Touch-type display panel applications more and more common, the current touch panel in the rest of the world has begun to become an industry, with advanced equipment, it is the simplest and convenient multimedia information equipment, touch panel with many advantages such as ruggedness and space saving. At present, this laboratory is focused on the design of capacitive touch panel and back-end sensing IC design, the theoretical and simulation software to calculate the capacitance value and a variety of situations, and then with the simulation of the capacitance value of the IC design.”