Technical Specifications
B–4 User’s Guide
LCD Monitor Quality and Pixel Policy
for f1903 Monitor
The HP f1903 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 f1903 displays. These
imperfections are caused by one or more defective pixels or
sub-pixels.
■ A pixel consists of one red, one green, and one blue sub-pixel.
■ 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.
■ 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 f1903 display does not have more than:
■ 7 total dot defects
■ 1 defective full pixels
■ 3 defective bright sub-pixels
■ 4 defective dark sub-pixels
■ No more than two adjacent (less than 2.5 mm edge-to-edge)
and defective pixels
■ No more than two pairs of two adjacent defective pixels
To locate defective pixels, the monitor should be viewed under
normal operating conditions and in normal operating mode at a
supported resolution and refresh rate, from a distance of
approximately 50 cm (16 in.).
HP expects that, over time, the industry will continue to improve its
ability to produce displays with fewer cosmetic imperfections and
HP will adjust guidelines as improvements are made.
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