1. T.Swetha.
ECE.
08RG1A0479.

2. CONTENTS:
•INTRODUCTION
•HISTORY
•WORKING
•TECHNOLOGIES
•ADVANTAGES
•DISADVANTAGES
•APPLICATIONS
•CONCLUTION

3. Introduction
 A touch screen is a display .

4. History
 Touch screens emerged from academic and corporate
research labs.

5. Components
 A basic touch screen has three main
components :
 Touch sensor
 Controller
 Software driver

6. Touch sensor
 A touch screen sensor is a
clear glass panel with a
touch responsive area.

7. Controller
 The controller connects between the touch sensor and
the computer.

8. Software Driver
 The driver allow the touch screen and computer to work
together.

9. Technologies
 Resistive
 Surface acoustic wave
 Capacitive
 Infrared

10. RESISTIVE

11. SURFACE ACCOUSTIC WAVE..

12. CAPACITIVE.

13. INFRARED

15. Applications

16. Conclusion
 In future there is no usage of mouse and keyboards as
they will be replaced by touch screen.