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Appendix C Lcd Monitor Quality And Pixel Policy - HP z34c User Manual

86.4 cm/34-inch curved monitors.
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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.
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.
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.

Appendix C LCD monitor quality and pixel policy


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