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8. GLOSSARY
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8. GLOSSARY
Color Temperature
Color temperature is a method to measure the white color tone, generally indicated in
degrees Kelvin. At high temperatures the white tone appears somewhat blue, while at
lower temperatures it appears somewhat red. Computer monitors generally give best
performance at high temperature settings.
5,000K: Often used in printing industry.
6,500K: Good for video-image display.
9,300K: Default setting for your EIZO monitor.
Cutoff and Gain
All colors displayed on the screen are produced by the combination of the light's three
primary colors, red, green, and blue. For example, white will be displayed when the
amount of luminescence of red, green and blue is at the almost same rate.
Theoretically, black will be displayed when red, green and blue don't emit light at all.
However, actually, on the screen the amount of luminescence of each color is not zero
and each color emits light slightly. The luminosity of each color at this time is called
cutoff (Black level), and the luminosity of each color on the basis of the cutoff is
called gain.
Convergence
Convergence is the monitor's ability to precisely illuminate specific phosphors and
line them up properly in order to produce pure color.
Degaussing
“Degaussing” refers to the process of removing magnetic-field effects from the
monitor. Operation of the monitor within a magnetic field may adversely effect color
purity. Degaussing can be used to correct the problem.
Moiré Reduction
Moiré refers to an interference pattern of dark wavy lines on the screen. It is not a
defect, but rather an interference phenomenon caused by the relationship between the
phosphor layout and the imaging signal. Moiré is often an indication of a good focus
level. Moiré is particularly noticeable when using a light-gray or every-other-dot
pattern background. Although moiré cannot be eliminated, it can be reduced with the
moiré reduction feature.