HP P3901 manual LCD Monitor Quality and Pixel Policy

hp pavilion fx50 15” lcd monitor Troubleshooting

The picture is not centered:

•Adjust your monitor using the Automatic Adjustment function (refer to “Auto Adjustment” on page 14).

LCD Monitor Quality and Pixel Policy

Your Hewlett-Packard TFT display uses high precision technology, manufactured according to HP standards, to guarantee trouble-free personal computing. Nevertheless, your 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 P3901 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.

Defective sub-pixels are less visible than defective whole pixels. Defective sub-pixels are small and only visible on a specific background.

Defective means either the pixel or sub-pixel is stuck always ON, a bright spot on a dark background, or it is stuck always OFF, a dark spot on a bright background. The first is the more visible of the two.

A dot defect is a stuck sub-pixel.

Your HP P3901 will not have more than:

•10 total dot defects

•8 stuck full pixels

•8 stuck red sub-pixels

•5 stuck green sub-pixels (green is most visible)

•8 stuck blue sub-pixels

•No more than two adjacent pixels may be stuck Adjacent is defined as less than 15mm edge to edge

•No more than two pairs of two-adjacent stuck pixels per display

To locate defective pixels, the unit 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 our guidelines as improvements are made.

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