Design of LED dot matrix hand writing display screen

摘要

This paper introduces a design scheme of handwriting touch screen. In this scheme, the LED display is used as the display device, in addition special light pen, no additional parts required to achieve click, drag, handwritten Chinese character input and other operations in LED screen. The display uses STC micro-controller as the control core, under the software control, the display can accurately realize the recognition of coordinates and handwritten Chinese character input. It demonstrates the feasibility of this program.