is a touch screen type display which is touch-sensitive transparent panel covering the screen’ Instead of using a pointing device like a mouse or a pen light, you can use your finger to draw objects on the screen’

The advantages of this technology are evident’ Instead of charging for over input devices like a mouse or keyboard, the user only needs a finger to operate the chosen device’ But not only mobile devices that receive this input’ All types of devices can be equipped, including television and computer monitors, LCD monitors, CRT monitors and old equipment’ Accordingly, a waiter can press on a screen to ring in a long night drinks, rather than a kind of price, a nurse can enter patient information with one hand’ Really, the possibilities are endless with touchscreens’

Touch screens are generally three types of recognition of a contact person’ These are resistive, capacitive and surface acoustic wave’ The works of resistive type with two panels with a space between them’ When the user clicks on the screen, two sets of contact this time, the exact coordinates are saved to the computer’

A capacitive system has a small electric charge through the touchscreen’ When the user touches the chosen field, part of the electric charge is distributed in the finger, which reduces the load on the site’ The coordinates are recorded and sent back to the computer’ This screen produces a clearer image because it transmits more light and does not require two panels’

Finally, the surface acoustic wave is the best and most clear in the picture’ The sensors are used to send electrical signals through the screen, and if the user touches the screen, which can determine the location based on how the signal is received from one transducer to another’

Since the system must have a finger capacitive absorbing electricity, most of the objects of life will not be registered as a contact’ Resistive systems, surface acoustic wave and also respond to almost any form of pressure’ Each has its benefits as a result, manufacturers and find new ways to use them’

Finally, although touch screens to provide a natural interface for novices, are not satisfactory for most applications with your finger, because it is a relatively large object’ It is impossible to point accurately to small areas of the screen’ In addition, most users find touch screens tiredness in the arms after long use’

Tags: Flat Screen Monitors, LCD Monitor, Plasma or LCD, Samsung LCD TV's, Used Solar Panel

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