 Standard
touch panels
Standard touch panels require no customization; they fit
easily into your products for cost-effective touch panel
solutions for any application. Four, five, and eight-wire
touch panels are available, ranging from 5.7-17 inches in
size.
Resistive touchscreens remain the dominant technology used
on Industrial operator interface terminals, and if anything
the shipment share with this technology is increasing. This
is a very cost-effective technology, and suitable for a
wide range of industrial applications.
Our team of design engineers will work with you to select
the right product for your application.
The following is a breakdown
of all types of Touchscreens:
Low-Reflection
Touch Panels
Low reflection touch panels are especially good for mobile
units using STN LCDs, where power consumption is critical.
A newly developed multi-layer sputtering method maximizes
the touch panel transparency so sunlight can illuminate
the LCD.
Back to panel types
Plastic Touch
Panels
Rugged Film/ Film Polycarbonate touch panels with an additional
protective layer are designed to provide excellent durability
and withstand high temperatures. The innovative construction
also resists a remarkable 80% transmissivity. Back
to panel types
Capacitive
Touch Screen
 Capacitive
touch screen technology is recommended for use in KIOSK
applications that require a "finger touch". It
will not operate with either a gloved hand or with a mechanical
stylus. It is made of glass, which makes it extremely durable
and scratch resistant. This glass overlay has a coating
that stores the charge deposited over
its surface electrically. Capacitive touch screens operate
using oscillator circuits that are located in each corner
of the glass overlay and measure the capacitance of the
area be "touched". Depending on where the person
touches the overlay, the oscillators will vary in frequency.
Then a touch screen controller measures the frequency variations
to ascertain the coordinates of the person's touch. When
used with flat panel displays, capacitive offers drift-free
stable performance that is not susceptible to deterioration
over time. A capacitive touch screen is impervious to grease,
dirt and water, which makes it ideal for frequent use.
Back to panel types
Resistive
Touch screens
 Resistive
touch screen technology is recommended for use in POS (Point
of Sale): Grocery Stores, Hotels, Restaurants and Retail
Stores; Industrial Applications: MMI (Man Machine Interface),
Machine and Process Control; Portable Devices; Personal
Information Management Systems; Transportation Solutions;
Medical Solutions: Equipment, Instrumentation and Patient
Monitoring Systems. It generally uses a display overlay
composed of layers, each with a conductive coating on the
interior surface. Special separator "dots" are
distributed evenly across the active area and separate the
conductive interior layers.
Back to panel types | Read
more on Resistive Touch Screens
SAW
(Surface Acoustic Wave)
SAW touch screen technology is suggested for use in ATMs,
Amusement Parks, Banking and Financial Applications, Gaming
Environments, Industrial Control Rooms, and KIOSK. SAW touch
cannot be used within NEMA environments, as the technology
cannot be gasket sealed. It has excellent durability that
allows it to continue working if scratched since the overlay
for the touch sensor is a solid glass display.
The disadvantage to this glass overlay is
that it is breakable and won't work in wash down conditions.
The waves are spread across the screen by bouncing off reflector
arrays along the edges of the overlay. The waves are detected
by two "receivers".
The acoustic wave weakens when the user touches
the glass with their finger, gloved hand or soft stylus.
The coordinates are then determined by the controller circuitry
that measures the time at which the amplitude declines.
It is the only technology that can produce a Z-coordinate
axis response. SAW technology offers drift-free stable performance
that is always precise. SAW offers superior image clarity,
resolution, and high light transmission.
Back to panel types
Read more about Acoustic Pulse Recognition
Technology
Infra-red Touch screens
 Infrared
touch screen technology is based on "legacy" technology
and is becoming increasingly replaced by Resistive or Capacitive
touch systems.
Over the years, Infra-red bezels have proven
to be a very reliable technology for use in ATMs, Food Service
and Preparation, KIOSK, Medical Instrumentation, Process
Control Systems, and Transportation Tracking applications.
It does not incorporate any sort of "overlay"
that could inhibit screen clarity or brightness, but instead,
uses a special bezel of LEDs (light emitting diodes) along
with diametrically opposing phototransistor detectors which
surround the glass of the display surface.
The controller circuitry scans the screen
with an invisible lattice of infra-red light beams just
in front of the surface that directs a sequence of pulses
to the LED's. It then detects information at the location
where the LEDs have become interrupted by a stylus or finger.
The infrared frame housing the transmitters can impose design
constraints on operator interface products.
Back to panel types
Markets
Touch panels are replacing keyboards and other terminal
operator interfaces across all industries. Touch panels
help reduce input error, can also help reduce inventory
costs, eliminate waste, and improve customer service across
your organization.
The following markets are early adopters of touch panel
technology, and our customers within these segments are
all willing to tell you how easily they converted to touch
panels. Contact us today for a reference from one of these
segments:
- Mobile computing
- Industrial automation
- Medical terminals and equipment
- POS
- Vehicle interface subsystems
- Military
Telios Tech specializes in the following areas:
LCD Solutions/Enhancements - click
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