D LCD Monitor Quality and Pixel Policy
The TFT monitor uses high-precision technology, manufactured according to HP standards, to
guarantee trouble-free performance. Nevertheless, the display may have cosmetic imperfections that
appear as small bright or dark spots. This is common to all LCD displays used in products supplied
by all vendors and is not specific to the HP LCD. These imperfections are caused by one or more
defective pixels or sub-pixels.
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A pixel consists of one red, one green, and one blue sub-pixel.
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A defective whole pixel is always turned on (a bright spot on a dark background), or it is always
off (a dark spot on a bright background). The first is the more visible of the two.
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A defective sub-pixel (dot defect) is less visible than a defective whole pixel and is small and
only visible on a specific background.
The HP display does not have more than:
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3 bright dots.
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5 dark dots.
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5 total bright and dark dots.
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No more than two adjacent (less than 2.5 mm edge-to-edge) defective pixels.
To locate defective pixels, the monitor should be viewed under normal operating conditions, in
normal operating mode at a supported resolution and refresh rate, from a distance of approximately
50 cm (20 in).
HP expects that, over time, the industry will continue to improve its ability to produce LCDs with
fewer cosmetic imperfections and HP will adjust guidelines as improvements are made.
ENWW 45
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