The touchscreen is that technology where the user interacts with the computer or phone by touching the screen of it that is the user touches the word or picture in order to operate it. Here user touches the screen with his fingers or hands to operate it. Screens are sensitive to pressure so they are handled delicately. This technology is used in smartphones, tablets, and other interactive machines.
Nowadays companies try to introduce this technology in their maximum products because this technology is quite attractive and this increases the marketing of their product they are even introduced in household machines like refrigerators, washing machines, microwave and many more.
This technology has reduced the job of mouse and keyboard. This technology is a combination of both hardware and software. The hardware architecture consists of a standalone embedded system using an 8-bit microcontroller, various interface and driver circuits.
Touch screen technology is classified into three major parts:
1)Resistive: Resistive touch screen works on the basis of pressure applied to the screen. It consists of multiple layers. As we touch the screen with greater pressure the upper layer is pushed downwards and comes in contact with the lower layer. The resistive touch screen is very flexible as we operate it with our fingers like we operate our tablet. These kinds of screens are not affected by the dust, air or water. This screen our pocket-friendly and are easily available.
2)Capacitive: Capacitive touch screen works on the basis of conductive properties of the object. Whenever a human finger touches the screen, conduction of electric charges occurs over the uncoated layer which results in the formation of a dynamic capacitor. These screens are very sensitive they are touched with the tip of the finger. They offer a high-quality screen. They are even operated with the help of a stylus.
3)Surface acoustic wave: These kinds of screens are used for excellent quality. Surface wave technology uses ultrasonic waves that pass over the touch screen panel. You cannot operate this screen with the help of a stylus.