Who likes a phone with scratches and dust particles sticked on its screen and that too when you have invested a huge amount of money in buying an I phone. Now a days, phones generally comes with touch screen technology rather than keypad ones. So even if you want to check time on your phone, you need to touch its screen. And there is no limitation on how many times one uses his phone. Currently there is vast wave of touch screen devices which are present in the market and they are launching with every passing day. Cell phones have become our basic necessity. With just one single click of our fingers, our phone can take us to the world. It has become almost impossible to stay without phone even for a day. There are so many devices available in the market with works on the principle of sensor technology. The only drawback of these touch screen devices is that they are very delicate and sensitive and requires lots of care and maintenance for their long durability.