NEC LCD2490W2-BK-SV - MultiSync - 24" LCD Monitor User Manual page 51

51 | SPECTRAVIEW II - USER'S GUIDE
PAL – Phase Alternation by Line. A standard for encoding video signals used in Western Eu-
rope and parts of Asia.
Phosphors – Materials that emit light when struck by radiation of certain wavelengths. CRT
displays use phosphors that give off red, green, and blue light to display an image on the
screen.
Profile A file containing a description of the color characteristics of a device such as a moni-
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tor, printer, or scanner.
Refresh Rate – The number of times the display screen is electronically scanned or "painted"
each second. Expressed in Hertz (Hz).
Saturation – An expression of the amount a color deviates from being achromatic (neutral in
color, such as gray). For example, red is a saturated color, while pink is less saturated, and
white has no saturation.
SECAM – Sequentiel Couleur Avec Mémoire (Sequential Color with Memory). A standard for
encoding video signals used mainly in France and Eastern Europe.
Soft Proof – Previewing on a display monitor what an image will actually look like when print-
ed on a particular printer.
Subtractive Primaries – Cyan, magenta, and yellow colors, such as dyes or inks that subtract
light reflecting off objects giving the appearance of color. For example magenta ink subtracts
green light. When combined together, cyan, magenta, and yellow produce black.
Tone Response Curve – A graph representing the relationship between the input and out-
put of a system or device. In SpectraView, Tone Response Curves represent the relationship
between the intensity of a color within an application and the light intensity displayed on the
monitor.
USB – Universal Serial Bus. A communication bus used to connect up to 127 devices such as
keyboards, mice, scanners, color sensors, etc.
Viewing Booth (See Lightbox)
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White point Specifies the color of pure "white" on a display, usually as a Color Temperature
–
expressed in Kelvin or as CIE xy chromaticity coordinates.