TOUCH SCREENSBy Mr. Eric Cal

Use either a finger or stylus

No need of Keyboard or mouse

Built in or Added on

Touch screen sensor panel

Sits above the display

Touch screen controller

Software Driver

Exercise 4.1 pg. 20

Do all questions You have five minute to complete the

task Use your book if required SILENCE PLEASE...

Infrared Touch Screens

Based on light-beam interruption technology

I need three participants

Driver (bridge) Controller (Police) Sensors (Traffic)

Resistive Touch Screen

Respond to the pressure of a finger or stylus.

When pressure is applied to the screen, the controller registers the touch event

Surface acoustic wave (SAW)

One of the most advanced Uses sound waves and not infrared

Capacitive touch screen

Glass panel with a capacitive (charge storing) material coating its surface

Current is drawn to finger

The End

Touch your nose! Thank you very much.