Projected Capacitance has many advantages over other
technologies.
1)
The sensing elements are very simple, and
inexpensive.
2) The technology can be protected inside, or
behind a very tough sheet of glass, or other non-conducting
material.
3)
The technology will work indoors or outdoors, in rain, snow, and other harsh
environmental conditions.
4) No bezel is required, with nothing fixed to, or
above, the user surface.
5) No
electronics or pcbs need
be attached to the supporting touch surface.
6) The
sensing material can be paper thin, and can be rolled up, and even folded
or creased without any functional damage.
7) Works, even if the supporting
surface is severely scratched or even shattered, so long as it still holds
together.
8) Sensing surface can be Flat,
Curved, Spherical, Deformable, Inflatable/Deflatable, or any
simple or complex shape.
9) Very wide operating temperature
range.
10) Several different sensing element materials may be
used in the one product
- e.g. may use
copper wire, embedded in opaque plastic, in the
touch-interactive case, linking to ITO, embedded in clear plastic, in the
touchscreen area.
11) Manufacture is readily automated .
12) Can sense through any slightly conducting or
non-conducting material - such as wood, glass, ceramic,
concrete, plastic,
13) Can sense through thin glass, thick glass,
double, or triple glazing.
14) Works through existing glass panels, with
nothing fitted on the user side of the glass - no special glass
needed.
(will not work,
however, through highly conductive glass, such as Pilkington K without some
modification to the glass).
15) Sensing elements can be Vacuum Formed,
Injection Moulded, or moulded in Fibre Glass.
16) May be very small through to very
large - from 2 inches to over 100 inches.
17) Consumes
very little power - can be powered from the USB port.
18) Very simple/low
cost controller electronics module.
19) Does not drift out of
calibration.
20) May be mounted vertically, or horizontally , or anywhere
in between.
21) Works with single touch and multiple touch.
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