4. Introduction
A touch screen is a display
that can detect the presence
and location of a touch
within the display area.
Touch screen can also sense
other passive objects such as
stylus.
5. History
Touch screens emerged from academic and corporate research labs ,
In 1971, the first "Touch Sensor" was developed by Doctor Sam Hurst
(founder of Elographics) while he was an instructor at the University of
Kentucky.
Touch screens first gained some visibility with the invention of the
computer-assisted learning terminal, which came out in 1975 as part of the
PLATO project.
6. Components
A basic touch screen has three main component:
Touch sensor
Controller
Software driver
11. Resistive Technology
The resistive touch screen uses a glass panel with a uniform
conductive ITO(Indium Tin Oxide) coating on the side surface.
A PET film is a tightly suspended over the ITO coating surface of
a glass panel.
20. Conclusion
Designers are trying to use touch screen to simplify input commands .
Today , touch screen has becomes adopted by computers users of all
abilities because it is simple, fast and innovative.
In future there is no usage of mouse and keyboards as they will be replaced
by touch screen.
