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| The Technology
of Touchscreens |
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| Q: How does a touch
screen work? |
| A: There are 4
main parts to a touch screen monitor: |
1. The touch screen
2. The monitor
3. The controller
4. The software drivers.
The touch screen is the physical apparatus that is touched.
The monitor is the display device, the controller "talks
to the computer" and the software allows the computer and
operating system to communicate. |
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Q: What type of
touch screens (sensors) are there?
A: There are 3 types: |
| |
Resistive:
Pressure sensitive, good with gloves/pens.
Good for restaurant and medical environments. |
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| Capacitive:
Conductive, clear/rugged more durable. Because of its
high durability it is used a great deal in the restaurant, kiosk,
and gaming industry. |
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| Acoustic
Wave: Sound waves (SAW). Clear picture, glass screen
is more durable, Ideal for multimedia kiosks ,interactive video
and control processing. |
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| Touch Screens Descriptions |
| Pressure Sensitive
Resistive |
| |
• Glass
sheet with transparent conductive coating beneath polyester
top sheet
• Light Transmission: up to 80%
• Calibration: Very Stable ·Activation: Fingernail,
credit card, gloved hand, pens, as well as finger touch input
• Resolution: 1024 x 1024
• Response
Time: 8-15 ms
• Expected Life: More than 1M
touches
• Interfaces: Serial, PC-Bus, PS/2,
USB & ADB
• Ideal For: Restaurant / Medical
Environments
• Drivers: Dos, Win 3x, '95, '98,
NT, Win2K, OS/2 and Mac |
| |
| Capacitive |
• Glass
sheet with transparent conductive coating beneath glass overcoat
• Light Transmission: 85%
• Calibration:
Very Stable
• Activation: Finger
•
Resolution: 1024 x 1024
• Response Time:
8-15 ms
• Expected Life: More than 1M touches
• Interfaces: Serial, PC-Bus, PS/2, USB &
ADB
• Ideal For: Dirty, wet, public or industrial
harsh environments
• Drivers: Dos, Win 3x,
'95, '98, NT, Win2K, OS/2 and Mac |
| |
| Surface Acoustic
Wave (SAW) |
All glass touch
sensor w-no overlays
• Light Transmission:
90% ·Calibration: Very Stable ·Activation: Finger,
and soft stylus
• Resolution: 4096 x 4096
• Response Time: 18-22 ms Z-axis ·response:
255 levels / 15 levels
• Expected Life: More
than 1M touches
• Interfaces: Serial, PC-Bus,
USB & ADB
• Ideal For: Clean, public, harsh
environments
• Drivers: Dos, Win 3x, '95, '98,
NT, Win2K, OS/2 and Mac |
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| FAQS |
Q: Do I need special
drivers for my touch screen to work?
A: Yes. You can download the appropriate drivers, based on the
operating system you are using from our web site .We will also
provide you a full set of drivers on floppy disk. Please request
driver packet when you place your order. Drivers can be found
for Elotouch (Resistive) units at www.elotouch.com
and drivers for Microtouch (capacitive) units are at www.microtouch.com
|
| |
Q: Can I use my
mouse and touch screen simultaneously?
A:Yes. You must first install MOUSE.com along with elodev.exe
and monmouse.com in autoexec.bat. If you wish to run only your
touchscreen load, nomouse.com instead of mouse.com |
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Q:What COM ports
should I put my touch screen on?
A:COM 1 is the default COM port used by the software But your
touch screen will work with any com port. |
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Q:What can be used to clean the
touch screen?
A: We recommend using any standard glass cleaner that does contain
ammonia.. Do not spray the cleaner directly on the screen but
simply spray it into a towel then clean the screen. |
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Q: Which should I use a serial or
bus
A:Serial is the most popular and cost effective method. As long
as you have an available serial port then this is the recommended
method. Should all your serial ports be spoken for then the
bus controller is an option. With the bus controller you must
install a bus card into your pc, as a result your cost will
increase. |
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Q: What operating systems do you
have drivers for?
A: We offer drivers for Windows 95/98, Windows 3.1, Windows
NT, Windows 2000, DOS and Macintosh |
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Kiosks
If you need kiosk mountable monitors we carry those also and
an excellent source for Kiosk information and cabinets is www.kiosks.org
for all your Kiosk con struction needs. |
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