QPC-DC Series USER MANUAL
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Chapter 3 T
OUCH
S
CREEN
3.1 Introduction
The QPC-DC Series are installed with a 5-wire analog resistive touch screen. The
touch screen panel turns the flat-panel display into a dynamic graphical user interface
(GUI) and data entry device. The touch screen represents a replacement to needing a
keyboard and mouse to interface with the computer. People associate actions or
functions with visual images better than a combination of keystrokes or button clicks.
Using a touch panel is more entertaining for the operator and actually requires less
brain activity than traditional control devices.
The built-in touch screen system has three main components: a clear solid glass
screen formed to match the shape of a display, a sophisticated electronic controller,
and a software driver.
3.2 Specifications
QPC-DC Series supports HIGGSTEC touch panel. Please check specifications as
following.
Input Method
Finger, gloved hand, or touch stylus.
Optical Transmittance
80% ± 3%
Operating Force
Stylus=R0.8,
≦
50g
Environmental/
Relative Humidity
Operating: -10°C to 70°C, 20 ~ 80% RH.
Storage: -40°C to 80°C, 10 ~ 85% RH.
Constant
Temperature/
Humidity
70°C /90%RH, 500 hrs, allow panel stays in normal
environment for 4 hrs
Surface Durability
3H pencil, pressure 1N/45°
Durability
Knock Test: 35,000,000 times
3.3 Touch Screen Software Driver
Touch screens configured with the QPC-DC Series will require software drivers to be
installed to enable the touch screen functionality. The driver software scales the
absolute coordinates received from the touch screen controller into translated screen
coordinates, using the calibration points obtained with the Video Alignment program
included with the driver software. The driver also performs other operations as
