Touch Screen Technology May Not Be a Good Thing

Cell phones with touch screens are very popular. Now, touch screens are available for computers and televisions. While these screens may seem like a good idea, you need only look at your cell phone screen to realize it may not be such a good idea after all.

If you look at your cell phone screen, you will see that it is grimy and full of fingerprints. It is almost impossible to keep the touch screen on a cell phone clean. Many people carry a cloth around to wipe the screen clean constantly.

Now imagine how your touch screen will look on your computer or television.

The natural oils on your fingers will leave annoying fingerprints each time you touch the screen. Every time you use your computer or television, you will have to wipe off the fingerprints. Often, the fingerprints are stubborn and will smear instead of disappearing.

Many people eat while they are working on their computers. The keyboard gets dirty enough and with touch screens, the screen will get as dirty as the keyboard. Imagine touch your screen while you are eating fried chicken or pizza. Your touch screen will eventually develop an oil slick.

Touch screen technology may appear to be a great idea at the moment; however, it will surely contribute to the development of an obsessive-compulsive disorder in the future. The constant wiping of screens will be the norm for millions of people.

It makes one wonder why a touch screen television is a good idea. The average person will not buy a television that does not include a remote control. Very few people will want to get up and touch their television screen. If they do, they will quickly become annoyed by the greasy fingerprint marks.

It appears that touch screens will be more of a nuisance than a convenience.


A touch screen is basically an electronic display of any electronic device which has the ability to identify the pressure and position of a stroke within the energetic area and interconnect with the users command by a nail, stylus or finger.
“Touch Sensor” was primarily designed and developed in 1971 by Dr. Sam. H during his term as an instructor in Kentucky University. Unlike the latest touch screens the elograph was not transparent.

Among the technologies of touchscreen there are 3 segments.
A thin metallic layer which is resistive and conductive electrically coated over a panel of a resistive screen causes a small variation in the electrical pulses which records the event of touch and transferred to the controller for further processing of the pulses.

Ultra sonic waves are used by the wave technology of surface accousticity passes over to the panel of the touch screen. When the panel is touched, a section of the wave signal is captivated, causing an alteration in the signal. The recorded event of touch is sent across to the controller.

The panel of touch screen with capacitiveness is layered with a substance that stores charges, which when touched; a minute amount of electric charge is derived at contact point. Circuits positioned at every corner of the panel records the charge and transmit the data for further processing to the controller. These touchscreen panels must be used by using the finger only.

Apart from these three types of touchscreens there are a few latest technologies. Like for example projected and surface, self, mutual capacitance, dispersive signal technology, optical imaging, infrared sensing, and acoustic pulse recognition.
When the user interacts with the panel, the system determines the variation in the current that streams through the display. Touch screens are very  widely used in many fields of applications. The Apple iPhone uses this technology. Many ATM machines use older version of this technology.