HP DreamColor Z27x Professional Display 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.

72 Appendix D LCD Monitor Quality and Pixel Policy

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Contents HP DreamColor Z27x Display First Edition April Document Part Number About This Guide Iv About This Guide Table of contents Color Space Menu Z27x Model Recognizing Preset Display Resolutions Viii Product Features HP Z27x MonitorPage Maintenance Guidelines Safety and Maintenance GuidelinesImportant Safety Information Cleaning the Monitor Shipping the MonitorSetting Up the Monitor Use Caution When Setting Up the MonitorInstalling the Stand Rear Components Component FunctionConnecting the Cables Page Page Page Page Front Panel Controls Adjusting the Monitor Page Setting Up the Monitor Turning on the Monitor Removing the Monitor Stand Connecting USB DevicesHP Watermark and Image Retention Policy Mounting the Monitor Page Page Page Installing an Optional HP Hood Kit Page Locating the Serial Number and Product Number Locating the Information CardAttaching a Device to the Rear of the Monitor Installing a Cable Lock Operating the Monitor Software and UtilitiesInformation File Image Color Matching FileInstalling the .INF and .ICM Files Installing from the DiscUpdating the Firmware Downloading from the InternetPage Selecting a Color Space Preset Adjusting LuminanceOverscan the Frame Understanding the Z27x Image Adjustment OptionsUse Video Levels Fill To Options Using the Z27x Aspect Ratio Management OptionsShow Only the Blue Channel Fill to Screen Width Proportional 2Fill to Aspect Ratio Working with 2K and 4K Digital Cinema Image Formats DCI Level Horizontal Pixels Vertical Pixels Frame RateUsing the Digital Cinema Display Options Crop to DCI 1.851 Aspect RatioShow Cropped Region Using Picture-in-Picture PIP and Picture-beside-Picture PBP Next 4K CornerUsing PIP as a Confidence Monitor Changing the Bezel Button FunctionsChanging the Bezel Function Button Mode Page Adjusting the Bezel Button LEDs Using Auto-Sleep ModeUsing the On-Screen Display Menu Color Space Menu LevelImage Adjustment Menu Video Input MenuOverdrive may improve PIP Control Menu Language Menu Management Menu CI?Do you want to allow display Calibration? Do you want to enable Menu and Message Control Menu Operating the Monitor Information and Factory Reset Menus Introduction to Color CalibrationPreparing to Calibrate OSD, select Management Manage Internal ProcessorCalibrating the Z27x Using the Onscreen Menus Recalibrate the Current PresetAuto Edid Update Page Technical Specifications Z27x ModelRecognizing Preset Display Resolutions Z27x ModelAppendix a Technical Specifications Support and Troubleshooting Solving Common ProblemsButton Lockouts Activation Button LockoutProduct Support Preparing to Call Technical SupportAgency Regulatory Notices Federal Communications Commission NoticeModifications CablesCanadian Notice Avis CanadienEuropean Union Regulatory Notice German Ergonomics NoticeJapanese Notice Korean Notice Power Cord Set Requirements Japanese Power Cord RequirementsProduct Environmental Notices Energy Star QualificationMaterials Disposal Appendix C Agency Regulatory Notices Turkey EEE Regulation Ukraine Restriction of Hazardous SubstancesLCD Monitor Quality and Pixel Policy