Specifications

Elo TouchSystems (800) ELO-TOUCH or [phone] • Fax [phone] • www.elotouch.com
active matrix
See LCD.
actual image size
The size of the display on the screen is dependent upon the
signals provided by the video card. The displayable diagonal
measurement can vary, depending on how the graphics mode
is generated and how the monitor responds to the
characteristics of the video signal.
aperture grille
Aperture grille technology employs a series of thin, closely
spaced vertical wires to isolate pixels horizontally. The pixels
are separated vertically by the nature of the scan lines (beams)
used to compose the image.
backlight
A technique used to make LCDs easier to read.
bandwidth
A measure of the display performance of a monitor. Expressed
in MHz, bandwidth is the number of dots that can be
displayed in a line per second. More strictly, it is the
frequency response of the system between points where the
signal level falls to a specified percentage of its maximum
value (usually 50% or 75%). In principle, the greater the
bandwidth, the better the monitor—although the quality of the
picture tube is often the limiting factor affecting display
performance, and for many standard monitors there is little
point in increasing the bandwidth beyond a certain point.
Typical bandwidths for monitors (Winter 2004) are as follows:
VGA monitors: 18 MHz
FGA+ monitors: 35 MHz
CAD monitors: 100 MHz
Bauart
Component products can be Bauart certified by TÜV for
expected safety concerns, meaning evaluation to German and
European Union standards for building into other equipment.
Typical component products are touchscreens, controllers,
and kiosk or frame touchmonitors.
brightness
Light output measured at the faceplate of the CRT; typically
measured in footlamberts (Fl). A minimum brightness level of 20
Fl when viewing a full-sized page is considered acceptable.
CD-ROM
Compact Disc Read-Only Memory. A CD-ROM is any compact
disc that contains computer data. "ROM" means that you
cannot save information onto these discs. These discs can
hold huge amounts of data (up to 640 megabytes). If there is
a large amount of data on a CD-ROM, then it is usually
impractical to copy the data onto the hard disk; in this case,
you must insert the disc into the drive whenever you want to
use the data. CD-ROM may also refer to the drive used to read
these discs.
CE
The CE (Conformite Europeene) marking on end products
indicates compliance with all applicable directives. For
information technology equipment (ITE) this typically means
Low Voltage Directive 73/23/EEC (LVD), and the EMC
Directive 89/336/EEC. Typical end products are desktop
touchmonitors.
Components typically do not carry the European Union’s CE
marking. Properly applied, they will comply with the LVD and
EMC Directives. Typical component products are touchscreens,
controllers, and kiosk touchmonitors. Refer to the product
Declaration of Conformity (DOC) for test levels.
contrast
The ratio between the maximum and the minimum brightness
of the display.
contrast control
A manual gain control for a monitor, affecting both luminance
and contrast.
C-Tick
A trademark registered to the Australian Communications
Authority, indicating compliance with the electromagnetic
radiation emissions limits of Australia and New Zealand.
CRT
Cathode ray tube. Also known as picture tube or screen. A
picture tube in a TV is also a CRT.
DDC
Display Data Channel. A VESA standard for communication
between a monitor and a video adapter. Using DDC, a monitor
can inform the video card about its properties, such as
maximum resolution and color depth. The video card can then
use this information to ensure that the user is presented with
valid options for configuring the display.
DDC2B
VESA standard bidirectional digital data channel between the
display and the host. The host initiates data transfer by
reading the EDID from a memory location in the display. See
also DDC and EDID.
digital control
Microprocessor-based digital control of picture parameters
and video modes for complete control of picture settings and
modes and instant recall of all settings at the push of a
button. This very advanced feature allows the user to switch to
any required mode at any moment without having to spend
time readjusting the picture.
dot pitch
The distance between one phosphor dot (i.e., red, green, or
blue) and the nearest phosphor dot of the same color in the
line above or below.
DPMS
Display Power Management Signaling. A VESA standard that
ensures that monitor and video card manufacturers produce
power-saving products that work together.
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Glossary of “Touch” Terms and Related Technical Terminology