Understanding pixel defects in TFT flat panel monitors
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Understanding pixel defects in LCD monitors Bob Myers Displays Business Unit Last revised: July 1, 2009 Introduction...2 Executive summary 2 Understanding TFT-LCD technology 3 How LCDs work 3 Why TFTs? ...3 Understanding pixel defects 4 How pixel defects occur 4 How to spot a sub-pixel defect 5 HP pixel-defect standards 5 HP specifications 5 International standards (ISO-9241 6 Defect type definitions 8 The HP advantage 9 HP quality and reliability 9 Designed with the environment in mind 9 HP service and support 10 For more information 11 1
Understanding pixel defects in LCD monitors Bob Myers Displays Business Unit Last revised: July 1, 2009 Introduction...2 Executive summary 2 Understanding TFT-LCD technology 3 How LCDs work 3 Why TFTs? ...3 Understanding pixel defects 4 How pixel defects occur 4 How to spot a sub-pixel defect 5 HP pixel-defect standards 5 HP specifications 5 International standards (ISO-9241 6 Defect type definitions 8 The HP advantage 9 HP quality and reliability 9 Designed with the environment in mind 9 HP service and support 10 For more information 11 1
Understanding pixel defects in TFT flat panel monitors
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... of color and detail that each customer receives the highest quality product available. The HP specification does not allow for any complete pixel defects and minimize sub-pixel defects. What is HP doing about them, this case, no full or complete pixel defects, and fewer ...Why is because the current state-of dealing with HP gives you understand how pixel and sub-pixel defects occur, and what HP does about it? It does, however, allow for some LCD monitors may produce a few sub-pixel defects per screen. HP has conducted a detailed study of the manufacturing process...
... of color and detail that each customer receives the highest quality product available. The HP specification does not allow for any complete pixel defects and minimize sub-pixel defects. What is HP doing about them, this case, no full or complete pixel defects, and fewer ...Why is because the current state-of dealing with HP gives you understand how pixel and sub-pixel defects occur, and what HP does about it? It does, however, allow for some LCD monitors may produce a few sub-pixel defects per screen. HP has conducted a detailed study of the manufacturing process...
Understanding pixel defects in TFT flat panel monitors
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... reasonably be extremely hard to spot when they are not likely to 600 lux; In a simplified format, the pixel defect specifications are also easier to see. Historically, HP has maintained stringent manufacturing specifications for HP monitors manufactured before May 2009: Bright sub-pixel defects: Dark sub-pixel defects: Total sub-pixel defects: Full pixel defects...
... reasonably be extremely hard to spot when they are not likely to 600 lux; In a simplified format, the pixel defect specifications are also easier to see. Historically, HP has maintained stringent manufacturing specifications for HP monitors manufactured before May 2009: Bright sub-pixel defects: Dark sub-pixel defects: Total sub-pixel defects: Full pixel defects...
Understanding pixel defects in TFT flat panel monitors
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... manufacture is on the label on the back of each ) Class 2 panels permit any or all HP monitors are ever permitted; As mentioned earlier, the HP specifications dictate no double sub-pixel 6 Table 2. These identify three classes for pixel defects, contained within the above listed...5-10 single or double bright or dark sub-pixels (again, depending on or off The HP specification ensures that fall within the ISO 9241 set of specifications for measuring pixel defects in flat panel monitors: Class 0 panels are completely defect-free, including no full pixel or sub...
... manufacture is on the label on the back of each ) Class 2 panels permit any or all HP monitors are ever permitted; As mentioned earlier, the HP specifications dictate no double sub-pixel 6 Table 2. These identify three classes for pixel defects, contained within the above listed...5-10 single or double bright or dark sub-pixels (again, depending on or off The HP specification ensures that fall within the ISO 9241 set of specifications for measuring pixel defects in flat panel monitors: Class 0 panels are completely defect-free, including no full pixel or sub...
Understanding pixel defects in TFT flat panel monitors
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... the IEEE 1680 American National Standard for HP products. The HP advantage The HP pixel defect specifications are part of innovative and competitively priced products. HP quality and reliability helps reduce maintenance, repair, and support costs throughout the monitor lifecycle and result in the toughest workplace ...of the required criteria and at least 21 of the optional criteria. Low emissions: HP monitor products meet a number of strict new requirements set of LCD monitors is a set by testing every model with the environment in a variety of networked environments to...
... the IEEE 1680 American National Standard for HP products. The HP advantage The HP pixel defect specifications are part of innovative and competitively priced products. HP quality and reliability helps reduce maintenance, repair, and support costs throughout the monitor lifecycle and result in the toughest workplace ...of the required criteria and at least 21 of the optional criteria. Low emissions: HP monitor products meet a number of strict new requirements set of LCD monitors is a set by testing every model with the environment in a variety of networked environments to...
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to follow directions could result in bodily harm or loss of information. About This Guide This guide provides information on setting up the monitor, installing drivers, using the on-screen display menu, troubleshooting and technical specifications. iii NOTE: Text set off in this manner provides important supplemental information. Text set off in this manner indicates that failure to equipment or loss of life. WARNING!
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to follow directions could result in bodily harm or loss of information. About This Guide This guide provides information on setting up the monitor, installing drivers, using the on-screen display menu, troubleshooting and technical specifications. iii NOTE: Text set off in this manner provides important supplemental information. Text set off in this manner indicates that failure to equipment or loss of life. WARNING!
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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...Common Problems ...32 Using the Worldwide Web ...33 Preparing to Call Technical Support 33 Appendix B Technical Specifications L1706i Model ...34 L1906i Model ...35 L1908wi Model ...36 Recognizing Preset Display Resolutions 37 L1706i and L1906i Models 37 L1908wi Model ...37 Entering User Modes ...38 Energy Saver Feature ...38 Appendix C Agency Regulatory Notices Federal Communications...42 Materials Disposal ...42 Disposal of Waste Equipment by Users in Private Household in the European Union ...42 Restriction of Hazardous Substances (RoHS 43 Appendix D LCD Monitor Quality and Pixel Policy vi
...Common Problems ...32 Using the Worldwide Web ...33 Preparing to Call Technical Support 33 Appendix B Technical Specifications L1706i Model ...34 L1906i Model ...35 L1908wi Model ...36 Recognizing Preset Display Resolutions 37 L1706i and L1906i Models 37 L1908wi Model ...37 Entering User Modes ...38 Energy Saver Feature ...38 Appendix C Agency Regulatory Notices Federal Communications...42 Materials Disposal ...42 Disposal of Waste Equipment by Users in Private Household in the European Union ...42 Restriction of Hazardous Substances (RoHS 43 Appendix D LCD Monitor Quality and Pixel Policy vi
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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...L1908wi model, 19-inch (48.3 cm) viewable area display with 1440 × 900 resolution, plus full-screen support for Energy Star compliance ● AssetControl (available with select models) ● Compliant with the following regulated specifications: ◦ European Union CE Directives ◦ Swedish MPR II 1990 HP LCD Monitors... with Integrated Work Center The flat panel monitors have an active matrix, thin-film transistor (TFT), ...
...L1908wi model, 19-inch (48.3 cm) viewable area display with 1440 × 900 resolution, plus full-screen support for Energy Star compliance ● AssetControl (available with select models) ● Compliant with the following regulated specifications: ◦ European Union CE Directives ◦ Swedish MPR II 1990 HP LCD Monitors... with Integrated Work Center The flat panel monitors have an active matrix, thin-film transistor (TFT), ...
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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... outlet, and the total ampere rating of the monitor: ● Do not open the monitor cabinet or attempt to service this monitor, as a power strip or Uninterruptible Power Supply (UPS). the power strips must be specifically labeled as having this monitor. Use a power strip whose manufacturer offers a... Damage Replacement Policy so you can replace the equipment, if surge protection fails. Adjust only those controls that no one is easily accessible at http://www.hp.com/ergo and/...
... outlet, and the total ampere rating of the monitor: ● Do not open the monitor cabinet or attempt to service this monitor, as a power strip or Uninterruptible Power Supply (UPS). the power strips must be specifically labeled as having this monitor. Use a power strip whose manufacturer offers a... Damage Replacement Policy so you can replace the equipment, if surge protection fails. Adjust only those controls that no one is easily accessible at http://www.hp.com/ergo and/...
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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...that comes with the International Color Consortium (ICC) Profile Format specification. 20 Chapter 4 Operating the Monitor The Image Color Matching File The .ICM files are data files that the monitor connects directly to monitor screen. NOTE: The ICM color profile is VESA DDC2b-...and that are used by Microsoft Windows operating systems to ensure monitor compatibility with graphics programs to provide consistent color matching from monitor screen to printer, or from the HP monitors support Web site. Monitor Plug and Play compatibility requires that support this feature. The...
...that comes with the International Color Consortium (ICC) Profile Format specification. 20 Chapter 4 Operating the Monitor The Image Color Matching File The .ICM files are data files that the monitor connects directly to monitor screen. NOTE: The ICM color profile is VESA DDC2b-...and that are used by Microsoft Windows operating systems to ensure monitor compatibility with graphics programs to provide consistent color matching from monitor screen to printer, or from the HP monitors support Web site. Monitor Plug and Play compatibility requires that support this feature. The...
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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...Pitch Horizontal Frequency Vertical Refresh Rate (analog mode) Environmental Requirements Temperature Operating Temperature Storage Temperature Relative Humidity Power Source 17.0 inches TFT LCD 17−inch diagonal −5 to 20° −90 to 90° 14.84 lbs 19.5 inches 10.3 inches ...497 mm 262 mm 374 mm 5 to 35° C −20 to 60° C 34 Appendix B Technical Specifications Performance specifications represent the highest specification of all HP's component manufacturers' typical level specifications for performance and actual performance may vary either higher or lower.
...Pitch Horizontal Frequency Vertical Refresh Rate (analog mode) Environmental Requirements Temperature Operating Temperature Storage Temperature Relative Humidity Power Source 17.0 inches TFT LCD 17−inch diagonal −5 to 20° −90 to 90° 14.84 lbs 19.5 inches 10.3 inches ...497 mm 262 mm 374 mm 5 to 35° C −20 to 60° C 34 Appendix B Technical Specifications Performance specifications represent the highest specification of all HP's component manufacturers' typical level specifications for performance and actual performance may vary either higher or lower.
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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Table B-1 L1706i Specifications (continued) Altitude: Operating 0 to 12,000 feet 0 to 3657.6 m Storage 0 to 40,000 feet 0 to 12192 m Power Consumption (maximum)
Table B-1 L1706i Specifications (continued) Altitude: Operating 0 to 12,000 feet 0 to 3657.6 m Storage 0 to 40,000 feet 0 to 12192 m Power Consumption (maximum)
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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L1908wi Model Table B-3 L1908wi Specifications Display Type Viewable Image Size Tilt Swivel Maximum Weight (Unpacked) Dimensions (include base) Height Depth Width Maximum Graphic Resolution Optimum Graphic Resolution Text Mode Dot ... Rate Environmental Requirements Temperature Operating Temperature Storage Temperature Relative Humidity Power Source Altitude: Operating Storage Power Consumption (maximum) Input Terminal 19 inches wide screen TFT LCD 19-inch diagonal −5 to 20° −90 to 90° 16.53 lbs. 48.3 cm 48.3 cm 7.5 kg 14.06 inches 10.24...
L1908wi Model Table B-3 L1908wi Specifications Display Type Viewable Image Size Tilt Swivel Maximum Weight (Unpacked) Dimensions (include base) Height Depth Width Maximum Graphic Resolution Optimum Graphic Resolution Text Mode Dot ... Rate Environmental Requirements Temperature Operating Temperature Storage Temperature Relative Humidity Power Source Altitude: Operating Storage Power Consumption (maximum) Input Terminal 19 inches wide screen TFT LCD 19-inch diagonal −5 to 20° −90 to 90° 16.53 lbs. 48.3 cm 48.3 cm 7.5 kg 14.06 inches 10.24...
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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... monitor will... these signals, the monitor screen is blanked, ... its normal operating mode, the monitor uses less than 2 watts of... the monitor to enter into if the monitor detects ...monitor's Energy Saver utility causes the monitor to enter the reduced power state, the power light blinks amber. 38 Appendix B Technical Specifications The monitor... also supports a reduced power state. There is in memory. When the monitor is a brief warm up period before the monitor will be entered and stored. The monitor...monitor screen by using the on setting energy...
... monitor will... these signals, the monitor screen is blanked, ... its normal operating mode, the monitor uses less than 2 watts of... the monitor to enter into if the monitor detects ...monitor's Energy Saver utility causes the monitor to enter the reduced power state, the power light blinks amber. 38 Appendix B Technical Specifications The monitor... also supports a reduced power state. There is in memory. When the monitor is a brief warm up period before the monitor will be entered and stored. The monitor...monitor screen by using the on setting energy...
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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...it is recycled in the display LCD that might require special handling at end-of the computer manual. Specific details on using the Energy ...Saving features can be regulated because of the U.S. Disposal of this product must not be disposed of with the ENERGY STAR Logo meet the requirements of environmental considerations. Product Environmental Notices ENERGY STAR Compliance Monitors...has determined that protects human health and the environment. Materials Disposal This HP product contains mercury in the fluorescent lamp in a manner that this ...
...it is recycled in the display LCD that might require special handling at end-of the computer manual. Specific details on using the Energy ...Saving features can be regulated because of the U.S. Disposal of this product must not be disposed of with the ENERGY STAR Logo meet the requirements of environmental considerations. Product Environmental Notices ENERGY STAR Compliance Monitors...has determined that protects human health and the environment. Materials Disposal This HP product contains mercury in the fluorescent lamp in a manner that this ...
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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To view the JIS C 0950 material declaration for sale after July 1, 2006. Restriction of Hazardous Substances (RoHS) A Japanese regulatory requirement, defined by specification JIS C 0950, 2005, mandates that manufacturers provide Material Content Declarations for certain categories of electronic products offered for this product, visit http://www.hp.com/go/jisc0950. 11363-2006 11363-2006 Product Environmental Notices 43
To view the JIS C 0950 material declaration for sale after July 1, 2006. Restriction of Hazardous Substances (RoHS) A Japanese regulatory requirement, defined by specification JIS C 0950, 2005, mandates that manufacturers provide Material Content Declarations for certain categories of electronic products offered for this product, visit http://www.hp.com/go/jisc0950. 11363-2006 11363-2006 Product Environmental Notices 43
HP L1706i, L1906i and L1908wi LCD Monitors User Guide
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...only visible on a bright background). HP expects that appear as improvements are caused by all LCD displays used in ). This is common to all vendors and is always off (a dark spot on a specific background. To locate defective pixels, the monitor should be viewed under normal operating ...blue sub-pixel. ● A defective whole pixel is always turned on (a bright spot on a dark background), or it is not specific to the HP LCD. Nevertheless, the display may have cosmetic imperfections that , over time, the industry will continue to improve its ability to guarantee trouble-free...
...only visible on a bright background). HP expects that appear as improvements are caused by all LCD displays used in ). This is common to all vendors and is always off (a dark spot on a specific background. To locate defective pixels, the monitor should be viewed under normal operating ...blue sub-pixel. ● A defective whole pixel is always turned on (a bright spot on a dark background), or it is not specific to the HP LCD. Nevertheless, the display may have cosmetic imperfections that , over time, the industry will continue to improve its ability to guarantee trouble-free...