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Glossary
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CCFL(cold cathode fluorescent light)
These are the fluorescent light tubes providing the light for the LCD module. These tubes are
generally very thin, approximately 2 mm in diameter.
Chromaticity
That part of color specification, which does not involve illuminance. Chromaticity is two-dimensional
and specified by pairs of numbers such as dominant wavelength and purity.
CIE (Commission International de I'Eclairage)
The International Commission on Illumination, the primary international organization concerned with
color and color measurement.
Color temperature
A measurement of the color of light radiated by an object while it is being heated. This
measurement is express in terms of absolute scale, (degrees Kelvin). Lower Kelvin temperatures
such as 2400° K are red; higher temperatures such as 9300° K are blue. Neutral temperature is
white, at 6504° K. Philips monitors generally offers 9300° K, 6500° K, and user define.
Contrast
The luminance variation between light and dark areas in an image.
Contrast ratio
The ratio of luminance between the brightest white pattern and the darkest black pattern.
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