Post on 16-Jul-2015
Presentated by :
N.LOKESH
119A1A0506
WHAT IS A TOUCH SCREEN ?
Touch screen
is an electronic
visual display
that locates the
coordinates of
users touch
within the touch
area.
THE
TELAUTOGRAPH
ELISHA GRAY
1911
THE THEREMIN
LEON THEREMIN
1928
Played music with
out physical contact
HISTORY
THE RAND TABLET
RAND corporation
1964
Enabled free hand drawings
THE DYNA BOOK
ALAN KAY
1968
Access to digital media for children,
volumes of military maintenance
THE ACCUTOUCH
1971 first sensor was developed
Dr.SAM HURST (founder of ELOGRAPH)
Demonstrated on 33 televisions at 1982 world’s fair.
where the public saw the touch screen for the first time
1983 HP-150
1985 SENSOR FRAME
First touch screen computer
TOUCH
SCREE
N
types
RESISTIVE
CAPACITATI
VEINFRARED
RESISTIVE TOUCH
Most widely used in mobile phones
Water and dust resistance
Touch with fingers, stylus, etc.,
Life span of 35 million touches
CAPACITATIVE TOUCH
Most expensive than resistive
touch screens
Water, dust and scratch resistant
Touch only with fingers
INFRARED TOUCH
Z-FORCE
Z-Force is developed to work with a wide
range of touch enabled devices such as
smart phones, tablets, toys, home appliances,
e-readers, printer products and automotive
applications.
Z-Force is developed to provide outstanding
performance.
This is achieved through Neonode’s multi
sensing technology
WORKING PRINCIPLE
The frame is Integrated with printed
circuit board.
Contains IR-LED’s & Photo
transistors hidden behind the
bezel.
These are set on opposite sides of the
screen to create invisible IR-light
MULTI SENSING TECHNOLOGY
It performs with the speed of light.
ADVANTAGES:-
It is cheaper technology as compared to
the resistive and capacitative touch screens.
Long service life
It does not use the electrical properties of
the human body to track movement.
Long battery life
Touch con be activated by any thing
including finger, stylus, gloved hand
DISADVANTAGES:-
A raised bezel is placed around
the screen.
1ms response times are quite possible
with this new technology and there is little
to no lag.
CONCLUSION
Neonode could be a solid stock for
technology growth investors. The firm’s
unique technology, solid business model,
near-term revenues and long-term
contracts make it worth a second look.