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HP and Compaq LCD Monitors, HP TouchSmart PCs, and All-in-One PCs - HP Pixel Policy
This document pertains to all HP and Compaq LCD Monitors, HP TouchSmart PCs, and All-in-One PCs flat panel display monitors manufactured from 2003 and on.
NOTE: This article does not pertain to display hardware in notebook computers.
Understanding pixel and sub-pixel defects
What is a pixel?
Short for picture element, a pixel is a single point in a graphic image. HP TouchSmart PCs, All-in-One PCs and LCD flat panel monitors display pictures by dividing the display screen into thousands (or millions) of pixels, arranged in rows and columns. The pixels are placed close together so that they appear connected.
A full pixel is a combination of one red, one green, and one blue sub-pixel .
What are pixel and sub-pixel defects?
A full pixel defect is a bright white dot or very noticeable black dot on the display. No full pixel defects are allowed per HP's monitor specification.
A sub-pixel defect is also referred to as a dot defect.
Bright dot sub-pixel defects are permanently "on", displaying a colored red, green, or blue spot on the display at all times.
Dark dot sub-pixel defects are permanently "off", displaying a black dot on the display at all times.
A different type of defect caused by microscopic contaminants within the manufacturing process can also be found. Contamination results in a dark "stain" covering one or several sub-pixels. They are not pixel or sub-pixel defects per say. No contamination is allowed under HP policy.
Understanding HP pixel policy
The policy that applies to your monitor depends on the date of manufacture of your display. The following policies apply during the HP limited warranty period:
Policy for HP monitors and All-in-One PCs manufactured in May 2009 or later:
Policy for HP monitors and All-in-One PCs manufactured before May 2009:
The manufacture date can be found on a label adhered to the back of the monitor or All-in-One PC.
HP’s Zero Bright Dots Guarantee for Specific 24-30 inch Performance Displays
For certain 24-30 inch HP Performance displays, HP guarantees zero bright dots.
This policy applies to ZR2440w, ZR2740w, ZR30w, Z24i, Z27i, Z30i, LP2480zx (regardless of manufactured date):
NOTE: The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.