The TFT01 LCD module is work in 3.3V voltage level and it's not compatible with Arduino MEGA pins , so we make a shield for Arduino MEGA. Now user can directly plug the TFT01 in the shield and stand on the Arduino MEGA board.
Read more: http://www.elecfreaks.com/store/lcd-tft01-arduino-mega-shield-v20-shd10-p-214.html#ixzz3DkFb1USY