In order to solve the development problem of LCD display driver under Windows CE system, the basic concept and common architecture of LCD display driver under Windows CE is introduced. Then the calculating method of LCD control parameter is given. At the same time, development process of certain type LCD is introduced through this method, and put forward a new method of LCD display driver based on Windows CE system. Experiment demonstrates that the Windows CE interface can be well implement LCD display by calculating LCD control parameter in this metho