HP LE1901w NK570A8#ABA, LE19F manual LCD Monitor Quality and Pixel Policy

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D 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.

ENWW

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Contents HP LE1901w/LE1901wm/LE19f and LE2201w LCD Monitors Page About This Guide Iv About This Guide Table of contents Appendix a Troubleshooting Appendix D LCD Monitor Quality and Pixel Policy Viii HP LCD Monitors Product FeaturesEnww Important Safety Information Safety and Maintenance GuidelinesCleaning the Monitor Maintenance GuidelinesShipping the Monitor Attaching the Monitor Base Setting Up the MonitorComponent Function Rear ComponentsAdjusting the Monitor Connecting the CablesMounting the Monitor Panel Turning on the MonitorMounting the Monitor Panel Locating the Rating Labels 6Locating the Rating Labels Setting Up the MonitorSoftware and Utilities Operating the MonitorInformation File Image Color Matching FileUsing the Auto-Adjustment Function Installing the .INF and .ICM FilesInstalling from the CD Downloading from the Worldwide WebUsing the Auto-Adjustment Function 1Monitor Front Panel Controls Front Panel ControlsControl Function Using the On-Screen Display Menu Adjusting the Monitor SettingsIcon Main Menu Submenu Description OSD Menu Selections2OSD Menu Displays the operating status of the monitor each time Sources. The monitor will automatically determine Optimizing Digital Conversion Using the HP Display Assistant UtilityIdentifying Monitor Conditions Sleep Timer ModeEnww 3HP Display LiteSaver Configuration Options Installing the HP Display LiteSaver SoftwareHP Display LiteSaver Select This Option To Do ThisInstalling the sRGB ICM File for Microsoft Windows Vista Changing the Color TemperatureSRGB Support Click Change display settings Click Advanced settings Installing the sRGB ICM File for Microsoft WindowsSolving Common Problems TroubleshootingCheck Video Cable is displayed on Power Button Lockout is displayed Problem Possible Cause SolutionEnww Table B-1LE1901w Specifications Technical SpecificationsLE1901w Model LE1901wm Model Table B-2LE1901wm SpecificationsLE19f Model Table B-3LE19f SpecificationsLE2201w Model Table B-4LE2201w SpecificationsTable B-5Factory Preset Modes Recognizing Preset Display ResolutionsTable B-6Factory Preset Modes LE1901w/LE1901wm/LE19f ModelsEntering User Modes Energy Saver FeatureFederal Communications Commission Notice Agency Regulatory NoticesModifications CablesAvis Canadien Canadian NoticeEuropean Union Regulatory Notice Japanese Power Cord Requirements Japanese Notice Korean Notice Power Cord Set RequirementsGerman Ergonomics Notice Energy Star Qualification Product Environmental NoticesMaterials Disposal Product Environmental Notices Turkey EEE Regulation LCD Monitor Quality and Pixel Policy