interactive screens
Kiosk
displays
What to consider when selecting the correct
display for your kiosk application
By Display Technology – www.displaytechnology.co.uk
As the world gets smaller and
communication links improve, the
ability to source TFT LCD and touch
screen products directly through Far
Eastern sources has become much
easier. Daily emails offer deals that
seem impossible to refuse. It is,
however, important to understand
the total cost of ownership and the
benefit of local support rather than
simply unit cost.
Display choice
It’s critical to ensure the correct
display is chosen to match the
application or position of the
Kiosk. Typical factors taken into
consideration include price, active
area (diagonal), aspect ratio,
resolution, brightness and viewing
angle. However, as part of the
standard display choice it’s also
important to consider:
•
Longevity of supply – there’s
little point in selecting a product
that’s late in its product cycle.
24 KIOSK solutions
•
Temperature specification –
both upper and lower limits,
interface/drive method and
colour performance.
Optical bonding
Optical Bonding is the process of
applying a silicone layer between the
front viewing face of the LCD and the
rear of the filter or touchscreen. The
main benefit is that by effectively
removing the internal surface there’s
no internally reflected light, and
the optical performance in high
ambient light and contrast increases
dramatically.
This often out-performs high
bright solutions via a lower power
passive enhancement. But used in
conjunction with a transflective or
high bright display, it’s an optimum
solution for a kiosk application. Op-
tical Bonding has a number of other
benefits including increased rug-
gedness, anti-fogging/condensation,
more effective heat dispersion and
improved EMC performance.