The following article will tell you about the different types of touch screens, their working, advantages disadvantages and also about the touch screen technology which will suit you the best.
There are many reasons why you should prefer a touch screen mobile over a mobile which does not have one. Touch screen is the finest “final-touch” applied to the mobiles by the mobile company manufacturers. There are two types of touch screens and they have their own reasons for staying in the market and being adored by the people.
Touch screen technology was first invented by Sir Jason Ford. Major work on this platform was done by Doctor Sam Hurst who developed the first touch sensor.
Different people have different needs. There are two types of touch screens and each one has its own pros and cons. One is the resistive touch screen and the other one is the capacitive touch screen. Some people like to have a touch screen which responds within the flick of a second. To such people I would recommend the capacitive touch screen. These screens work the best with the touch of your finger. The technology used in these touch screen mobiles is quite simple. These touch screens will incorporate a digitizer which is below the glass screen. Whenever you touch the touch screen, a small amount of electricity passes through your finger. Electric current flows throughout an electric grid placed beneath the glass of the touch screen. When you touch the touch screen, two conducting surfaces having different potentials are separated by an insulator: the glass of the touch screen. This causes a change in the capacitance at that spot and this change is detected by the sensors of the capacitive touch screen. The highly sensitive sensors of the touch screen send the information about the change in capacitance at a particular point to the processor. The processor identifies the location by detecting the bus which sends it the signals about the change in capacitance of a particular section of the touch screen. Thus these touch screens detect your touch very effectively and are much faster than the resistive touch screens. These touch screens are usually found on the iPhones of Apple. The best part is: your capacitive touch screen will work even if your screen’s glass is broken. The reason is because the digitizer is placed beneath the glass of your touch screen and hence a shattered glass will not render your mobile’s touch screen useless for your entire lifetime (this is true in the case of iphone users). A capacitor touch screen is said to transmit 90% of the monitor light and hence is a good option for people who love to spend a huge amount of their time with multimedia applications. But what about the resistive touchscreen? How does it work and what are its advantages?
Resistive touch screens work on a different principle as compared to capacitive touch screens. In these touch screens, there are two layers on top of the touch screen’s glass. Of these, one is a conductive layer and the other one is a metallic resistive layer. In this touch screen you can actually feel and even see the working of the touch screen technology. The two layers stated above are separated from each other by a small gap with the help of a spacer. In these touch screens you need to apply a little bit of pressure in order to bring the two layers of the touch screen into contact. When these two layers come into contact, a small current flows through both the layers of the resistive touch screen. This flow of current is detected by the processor and the location where the two layers of the touch screen come into contact is detected.
The resistive touch screen has no problems with water and dust, but it still has two major disadvantages:
• As you need to apply pressure in order to make the two layers to touch each other, the chances of the touch screen getting scratched are much high.
• The resistive touch screens transmit only 75-80% of the monitor light. This in no way means that the screen cannot give you a very high quality multimedia experience.
But the major plus point of resistive touch screens is that they are cheap and that you can use any screen protectors with them. And, even if your touch screen’s protector gets scratched, you will not find any defect in the quality of the media output. You can replace the screen protector of the touch screen whenever you want. Whereas with the capacitive touch screens you need to use very thin screen protectors which can get easily scratched if you do not handle it properly. And the sad point is that the protector screens are pretty costly. For capacitive touch screens you will need a 100% transparent conducting screen. And also mobiles having capacitive touch screens are much costlier as compared to the mobiles using the resistive touch screens. I myself use a resistive touch screen mobile and am very much happy with the results. One more problem that you will face with the capacitive touch screens is that you cannot use any stylus with these screens. If you use any other stylus, these touch screens won't work. The stylus should be made up of conducting material for the touchscreen to work. Wheras resistive touchscreens will work with any stylus and will also respond to the instructions given by your hand. If you ask me, I would prefer a mobile with a large touch screen with no separate sliding keypad. A separate keypad makes the mobile heavy and also bulky, thus stealing its style away. A mobile with a full-fledged touch screen will give you two keypads in its interface. If you hold the mobile vertically you will get the usual 12 keys’ mobile keypad and with the mobile held in the horizontal position you will get the QWERTY keypad. The keys will be well spaced and can be used easily even with your fingers with a little bit of practice (provided that you don’t have fingers the size of your leg’s thumb).
Both the above touch screens work pretty well and have their own special reasons for becoming a best choice of the people of different niche. The resistive touch screen on my Nokia 5233 works pretty well with the touch of my fingers. And hence you can trust my recommendation. I have also tried capacitive touch screens and have found them to be equally competitive. Though, it seems that mobiles with capacitive touch screens are quite heavy. Also, please note that it was only the iPhone users who said that their touch screens worked pretty well even after getting scratched. I truly do not know the case with the touch screens of other mobiles. The yet to come touch screen technology is the infrared technology which emits 100% light and eliminates the signal processing technologies used in the other touch screens because of its digital sensor outputs. So, buy your touch screen mobile today and keep on pecking the screen till you get the desired results. Have a cool day!!!!!!!!!!!!!
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