Usually we interface Liquid crystal display applying atleast 6 pins.This is an outdated approach.The new system to attach Liquid crystal display is making use of 3 pin interface board.If you don't have this interface board,you can also make it on your own.Click on below hyperlink to understand how to produce http://irtc37160.newsbloger.com/6270735/a-review-of-bhoomi-login