NEC SpectraView Reference 241, User Manual

Page: 44 / 68

44
Profiler
User Manual
LCD flat panels
Some LCD monitors offer near to none of these control options (e.g.
notebook monitors). Some of them have a brightness control only, which
dims the backlight (not to be confused with CRT’s brightness control
which sets the luminance of the black point).
Due to the necessary correction, these monitors are not suited for color
critical work or for soft proofing.
LCD monitors with an analog connector only will yield inferior calibration
quality altogether.
Higher quality LCD monitors (like the NEC MultiSync family of monitors)
offer 10 or more bit data processing. Only this type of monitors satisfies
higher quality demands.
These monitors offer settings for black and white luminance and white
point.
CRT - monitors
In CRTs the intensity of the 3 phosphors is controlled by an analog
signal that can be modulated nearly infinitely variable. Since the inten-
sity of each channel can be controlled individually (gain), the color
temperature can be set very exactly. Gradation curves in a CRT can not
be influenced, each monitor has it’s more or less fixed gamma. That’s
why a CRT can not be fully hardware calibrateable.