How does the touch-screen technology Works

The touch-screen technology can be mysterious, if you ever stop to wonder what really makes a screen to recognize your finger, pen or pencil’ As technology advances, touch screens are becoming increasingly popular cars that make the user interface intuitive and more exciting for the new devices of modern technology’ There are three basic systems used in touch screens and recognize its editorial of this article, this technology is gaining ground as a fourth system, as well as others in the scale of development of several products’

The first is resistance to a system that uses a driver of resistance and a sheet metal panel of glass’ The two layers are separated by spacers of electrical currents through the two layers, the screen is lighter’ There is also a scratch protection layer covering the layer of metal to keep the screen easily be destroyed’ When the user touches the screen, the two layers are required to play at this time’ There is a change in the electric field when contact is made and the details of the contact point are fed to a computer that is calculated on the screen and said to turn the operating system that determines what a success in this medium’

The capacitive system is constructed with a layer that has an electric charge in the glass’ When a finger touches the screen, part of the cost goes into the finger’ The decrease of the load is measured in circuits that are usually found in some parts of the screen’ And the relative variation of the load in every corner of the computer can calculate what is the point of contact with the finger that was published some of the costs’

The system of surface acoustic waves using a pair of sensors on the sides of the glass plate’ And reflectors are places in the glass plate to reflect the electrical signal that is sent from the sending of a transducer for receiving a transducer’ When a finger touches the screen, the electrical signal is interrupted and the use of two axes, the computer can calculate the contact area’

Because the sound system should not use a metal plate, which allows 100 percent of the light from the screen through a perfect clarity’ In contrast to the strength of the system that transmits about 75 percent of the light and controls the capability of the system that transmits about 90 per cent to improve the image quality of the resistance of the system

Tags: Plasma or LCD, Samsung LCD TV's, Thermal Sensor, Thermal Transducer, Touch Screen Monitor