Works as a touch screen technology

Mysterious touch screen technology, if you ever stop to wonder what really makes you see the screen with your finger, pen or stylus. As technology advances, touch screens are becoming more popular because they are more understandable and more interesting for people new modern high-tech gadgets. There are three basic systems used to screen for the identification of the note, and this writing, the infrared technology is increasingly popular as a fourth system, as well as other products being developed for different scales.

The first system of resistance, the treatment of conductive and resistive metallic sheets with a glass lid. Two layers, separated by spacers running electric current through the two layers, when the screen is held. There is also a level of protection against scratches, which prevent the destruction of a metal layer on the screen covers too easily. When a user touches the screen, the two layers forced to touch each other at this point. This change in the electric field, when contact is made, and the coordinates of the point of contact with the computer, where it means, calculated on the screen and turn it tells the operating system that determines which breathing fed up.

The capacitive system is built with a layer that contains an electric charge directly on the glass. When a finger touches the screen, part of the cargo arrives in the finger. Reducing the load is measured in circuits that are typically found in corners of the screen. And on the relative change of the charge at each corner of the computer can calculate what the point of contact with the fingers to some of the indictment was released.

The system uses a pair of surface wave sensors on the sides of the glass plate. And reflectors placed on a glass plate to reflect an electrical signal which is transmitted from the transmitting transducer to the receiving transducer. When a finger touches the best touch screen phone, an electrical signal is interrupted, and with two axes, the computer can calculate the exact area of ​​contact.

Since the surface acoustic system with a non-metallic plate, it provides 100 percent of the light observed quite clearly. As for the resistive system, which controls about 75 percent of the light and capacitance of the system, which transmits about 90 percent for improved picture quality compared to the resistive system transmits it.