User Guide

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Sync Width Pixels (H / V):
Total Pixels (H × V):
Horizontal Rate (KHz):
Vertical Refresh Rate (Hz):
Pixel Clock (MHz):
Polarity (H / V):
Format:
Scan Mode:
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Introduction to Color Calibration
The Z27x includes an internal color calibration and color management engine and does not require
software to be installed on a host computer in order to be calibrated. The following section discusses
the fundamentals of user calibration on the Z27x. A detailed discussion of calibration is covered in the
HP DreamColor Z27x Advanced User Guide .
The Z27x has been pre-calibrated at the factory to accurately display six of the most-frequently used
industry standard color spaces. In addition, all color spaces presets can be recalibrated by the user.
The following table lists the out-of-the box calibrated color space presets and provides information on
their calibrated configuration.
Preset Name Red Primary
(u’v’)
Green Primary
(u’v’)
Blue Primary
(u’v’)
White Point Gamma Luminance
sRGB 0.451, 0.523 0.125, 0.563 0.175, 0.158 D65 sRGB
250 cd/m
2
sRGB D50 0.451, 0.523 0.125, 0.563 0.175, 0.158 D50 sRGB 250 cd/m^2
AdobeRGB 0.451, 0.523 0.076, 0.576 0.175, 0.158 D65 2.2
250 cd/m
2
BT.709 0.451, 0.523 0.125, 0.563 0.175, 0.158 D65 2.4
100 cd/m
2
BT.2020 0.557, 0.516 0.056, 0.587 0.159, 0.126 D65 2.4
100 cd/m
2
DCI P3 0.496, 0.526 0.099, 0.578 0.175, 0.158 P3 2.6
48 cd/m
2
As a display is used, the backlight ages and the light output changes. As a result, a color-critical
display must be recalibrated from time to time to ensure color accuracy. HP recommends that the
Z27x be recalibrated every one thousand hours of use. The number of hours since calibration can be
displayed via the Display Information option in the Main Menu of the OSD or via the Show Display
Information command.
HP supports a variety of color measurement instruments, from inexpensive solutions that sell for a
few hundred dollars to colorimeters and spectroradiometers costing tens of thousands of dollars. The
following measurement instruments are supported:
52 Chapter 4 Operating the Monitor