Glossary - ViewSonic GT775 User Manual

Glossary

Convergence Alignment of the red, green, and blue components of an image on
the screen.
CRT Cathode ray tube, also called picture tube. A type of display in which images
are created by electron beams that cause phosphors to glow inside the surface of a
glass screen.
Aperture grille pitch The distance between two phosphors of the same color -
normally expressed in millimeters. Images look finer and crisper when the aperture
E
grille pitch is smaller.
N
TM
DPMS
G Display Power Management Signaling standard. VESA standard ensures
L
that monitor and video card manufacturers produce power saving products that work
I
together.
S
Ergonomic Convenience that makes viewing easier and more comfortable; reduces
H
operator fatigue and discomfort. Tilting the monitor up or down and swivelling to
the left or right helps reduce strain on your neck, back, and eyes. Specially coated
screens cut down on glare from lighting sources and reflections from surroundings.
Brightness contributes to full, rich, clear colors.
FCC Federal Communications Commissions. A U.S. agency that regulates radio
frequencies.
Flicker Unsteady screen image caused by a low refresh rate. A screen refreshing
process that is slow enough to be observed by the naked eye.
MPR-II Strict standards published by the Swedish National Board for measuring
electrostatic, electric, and magnetic fields.
Non-interlaced Painting all the screen lines in one pass. Non-interlaced monitors
are superior because they run faster and minimize flicker. All high quality monitors
feature non-interlaced displays at all resolutions.
Non-static A monitor face that has been specially treated to prevent build-up of
static electricity.
Plug and Play Simplifies hardware installation and configuration. Products
designed and developed to communicate with each other in the CPU for optimal
performance.
Refresh rate The speed a screen is repainted, also known as vertical scanning
frequency; describes how often the monitor paints (or refreshes) a complete monitor
screen or how many times the entire screen is redrawn per second. A refresh rate of
60 Hertz, for example, means the screen is drawn 60 times per second. Higher
refresh rates mean less image flicker (a sharper picture with less distortion and eye
strain). The recommended refresh rate is 75 Hz.
Resolution The number of horizontal pixels and the number of vertical lines. A
high resolution monitor enables more information and details to be displayed than
with lower resolution screens.
Screen size The measurement of the picture tube diagonally from one corner to
another. Manufacturers publish the viewable screen sizes, in addition to the CRT
size of their monitors. The CRT size is the actual size of the picture tube. The
viewable screen size is the usable screen area. Because the picture tube is enclosed
in the plastic casing, the viewable screen size is slightly smaller than the CRT or
actual screen size.
®
VESA Video Electronics Standards Association helps ensure compatibility of
graphics boards with software and display systems, and standardizes display
technology designs.
Glossary
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ViewSonic GT775