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Chapter7Glossary
Chapter 7 Glossary
Clock
The analog signal input monitor needs to reproduce a clock of the same frequency as the dot clock of the
graphics system in use, when the analog signal is converted to a digital signal for image display. This is
called clock adjustment. If the clock pulse is not set correctly, some vertical bars appear on the screen.
DDC/CI (Display Data Channel/Command Interface)
VESA provides the standardization for the interactive communication of the setting information, etc.
between a PC and the monitor.
DVI (Digital Visual Interface)
DVI is a digital interface standard. DVI allows direct transmission of the PC’s digital data without loss.
This adopts the TMDS transmission system and DVI connectors. There are two types of DVI connectors.
One is a DVI-D connector for digital signal input only. The other is a DVI-I connector for both digital and
analog signal inputs.
DVI DMPM (DVI Digital Monitor Power Management)
DVI DMPM is a digital interface power-saving function. The “Monitor ON (operating mode)” and “Active
Off (power-saving mode)” are indispensable for DVI DMPM as the monitor’s power mode.
Gain
This is used to adjust each color parameter for red, green and blue. An LCD monitor displays the color by
the light passing through the panel color lter. Red, green and blue are the three primary colors. All the
colors on the screen are displayed by combining these three colors. The color tone can be changed by
adjusting the light intensity (volume) passing through each color’s lter.
Phase
Phase means the sampling timing to convert the analog input signal to a digital signal. Phase adjustment is
made to adjust the timing. It is recommended that phase adjustment be made after the clock is adjusted
correctly.
Range Adjustment
Range adjustment controls the signal output levels to display every color gradation. It is recommended that
range adjustment be made before color adjustment.
Resolution
The LCD panel consists of numerous pixels of specied size, which are illuminated to form images. This
monitor consists of 1280 horizontal pixels and 1024 vertical pixels. At a resolution of 1280 × 1024, all pixels
are illuminated as a full screen (1:1).
sRGB (Standard RGB)
International standard for color reproduction and color space among peripheral devices (such as monitors,
printers, digital cameras, scanners). As a form of simple color matching for the Internet, colors can be
displayed using tones close to those of the transmission and reception devices.