Touch screen technology best presentation in limited time

1. PRESENTED BY -
VIVEK SHARMA
1405232059
B.TECH (E.I.) VI SEM
I.E.T. LUCKNOW
A
SEMINAR ON
PRESENTED TO -
ER. ABHIMANYU
PROF. ELECTRONICS
DEPT.

2. • Introduction
• History
• How touch works
• Types of Touch Technologies
• Pros & Cons
• Applications
• The Future of Touch
• References

3. A touch screen is an electronic visual
display that detect the location and
presence of touch in the display area.
The touchscreen enables the user to
interact directly with what is displayed
instead of a mouse or touchpad.
Touchscreen technology is the direct
manipulation type gesture based
technology.

4. First Touchscreen by E.
A. Johnson
•1965
First resistive
Touchscreen
•1970
HP-150 First touch
computer
•1983
First Touchscreen
phone by BELL
•1992
Apple launches
Message Pad
•1993
Palm top launched
•1998
i Gesture pad
•1999
Portfolio wall
•2001
Smart skin sensing by
SONY
•2002
Multi touch by FTIR
•2006
Microsoft Surface table
•2008
Microsoft & Samsung
SUR-40
•2011
Source: https://arstechnica.com/gadgets/2013/04/from-touch-displays-to-the-surface-a-brief-history-of-

5. • Just move your finger on the screen & it works…!
• The movement of fingers or stylus is sensed by touchscreens &
corresponding operations are performed
• A Touch screen consist of three main components -
• Touch sensor
• Controller
• Software driver

6. Touch
Screen
Resistive
Capacitiv
e
Surface
Acoustic
Infrared
Grid
Optical
imaging
Acoustic
pulse

7. Terms :- ITO : Indium Tin Oxide
PET: Polyethylene
Spacers: to provide support & gap

8. Resistive
Touch
screens
Analog
4 wire
resistiv
e
5 wire
resistiv
e
8 wire
resistiv
e
Digital
Matrix
resistiv
e
touch

9. 4 wire resistive
touch
8 wire resistive
touch
5 wire resistive
touch

10. Digital Matrix resistive
Touch

12. Capacitive
Touch screens
Surface
Capacitive
Projected
Capacitive
Mutual
Capacitance
Self
Capacitance

13. Surface Capacitive

14. Projected Capacitive

15. Slower
NO Multi-Touch
Not as smooth as
Capacitive
Less sensitive
(Pressure on screen is
required to be sensed)
Poor (e.g in sunlight)
Resistance creates a
path
Not Clear, scratches due
Faster
Supports Multi-Touch
Very Smooth
Highly sensitive
(because of capacitance
change phenomenon)
Good
Capacitance Change
Glossy, shinny Scratch
protected
Latest
Response
time
Multi-Touch
Smoothness
Sensitive
Visibility
Technology
Looks

21. FDI RDI

23. • Simple & user friendly
• NO special training required
• Fast access to all digital media
• Errors are eliminated
• Efficient utilization of space
• Multi-touch function available
• Provide sufficient Security
• Interfaces can be updated easily

24. • Not fast process behind the buttons
• Entering large data is tedious task
• Moisture & dust produce problems
• Large displays consume more power
• Expensive than non-touch devices
• Special conductive materials required for touch
• Low precision in case of virtual touch

27. • “The State of the Touch-Screen Panel Market in 2011” by Duke Lee
• “Issues & techniques in touch-sensitive table input” by Buxton W. & Hill R.
• Stone M. D. "Touch-screens for intuitive input”, PC Magazine
• “Comparative study of Various Touchscreens” by Semantics-scholars.org
• “Enhancing touch interaction on Human, Screen, everyday objects” by
Munehiko Sato, Ivan Poupyrev & Chris Harrison
• “A brief history of touch screen” by arstechnia.com
• “How it works :The technology of touchscreens” article by Computerworld.com
• “Touchscreen technologies in brief” dmccoltd.com

28. Questions .. ?