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Useful terms
Dot pitch
The image on a monitor is composed of red, green and blue dots. The closer the dots the higher the
resolution is. The distance between two dots of the same colour is called the Dot Pitch. The unit is mm.
Vertical frequency
The screen must be redrawn several times per second in order to create and disp
user. The frequency of this repetition per second is called Vertical Frequency or Ref
Hz.
Example: If the same light repeats itself 60 times per second, this is regarded as
flickering of the screen c
lay an image for the
resh Rate. The unit is
60 Hz. In this case,
an be detected. To avoid this problem, there is a Flicker-free Mode using a
cal frequency over 70 Hz.
orizontal frequency
verti
H
The time to scan one line connecting the right edge to the left edge of the screen horizontally is called
orizontal Cycle. The inverse number of the Horizontal Cycle is called Horizontal Frequency. The unit is
Hz.
H
k
Interlace and Non-Interlace methods
Showing the horizontal lines of the screen from the top to the bottom in order is calle
method while showing odd lines and then even lines in turn is called the Interlace
Interlace method is used for the majority of monitors to ensure a clear image. The In
same a
d the Non- Interlace
method. The Non-
terlace method is the
s that used in TVs.
lug & Play
P
It provides the best quality screen for the user by allowing the computer and the monitor to exchange
formation automatically. This monitor follows the international standard VESA DDC for the Plug & Play
nction.
esolution
in
fu
R
The number of horizontal and vertical dots used to compose the screen image is called resolution. This
umber shows the accuracy of the display. High resolution is good for performing multiple tasks as more
age information can be shown on the screen.
xample: If the resolution is 1024 × 768, this means the screen is composed of 1024 horizontal dots
orizontal resolution) and 768 vertical lines (vertical resolution).
n
im
E
(h
