HP x22 21.5 inch, x20 20-inch manual LCD Monitor Quality and Pixel Policy

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LCD Monitor Quality and Pixel Policy

Your LCD Monitor uses high-precision technology, manufactured according to high standards, to help 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 your LCD Monitor. These imperfections are caused by one or more defective pixels or subpixels.

A pixel consists of one red, one green, and one blue subpixel. 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 subpixel (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 and in normal operating mode at a supported resolution and refresh rate, from a distance of approximately 50 cm (16 inches). We expect that, over time, the industry will continue to improve its ability to produce displays with fewer cosmetic imperfections, and we will adjust guidelines as improvements are made. For more information about your LCD Monitor, refer to the HP Web site at: http://www.hp.com/support .

ENWW

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Contents HP x20LED, x22LED, x22LEDc and x23LED Monitors User Guide Page Document Part Number 603461-002 Second Edition, June About This Guide Table of Contents Troubleshooting Technical Specifications Product Features HP LCD MonitorsImportant Safety Information Safety and Maintenance GuidelinesSafety Precautions Maintenance Guidelines Cleaning the MonitorInstalling the Monitor Setting Up the MonitorUnpacking the Monitor Connecting Monitor Cables High-Bandwidth Digital Content Protection HdcpConnecting the Power Cable Connecting the VGA Analog Cable or DVI-D Digital CableEnww Installing Drivers Installing the monitor driver software from the CDDownloading updated drivers from the Internet Operating the MonitorFront-Panel Controls Hot Key definitionUsing the On-Screen Display OSD Image Color Temp OSD Setup SUB Selecting Video Input Connectors Adjusting Screen QualityIdentifying Monitor Conditions Optimizing Analog VideoPower-Saver Feature Solving Common Problems TroubleshootingProblem Possible Solutions Have the following information available when you call Getting Support from hp.comPreparing to Call Technical Support Locating the Rating LabelTechnical Specifications HP LCD MonitorsTable B-2 Model x22LED/ x22LEDc Table B-3 Model x23LED Preset Video Modes LCD Monitor Quality and Pixel Policy Agency Regulatory Notices Federal Communications Commission NoticeModifications CablesAvis Canadien Canadian NoticeEuropean Union Regulatory Notice German Ergonomics Notice Japanese Notice Korean NoticeJapanese Power Cord Requirements Power Cord Set RequirementsProduct Environmental Notices Materials Disposal Enww Turkey EEE Regulation
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