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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...that each customer receives the highest quality product available. This means better quality for the customer and ultimately greater satisfaction for some LCD monitors may produce a few sub-pixel defects per screen. Nevertheless, special practices and policies have come to reject any full or ...to me? Executive summary Flat panel LCD technology is because the current state-of its customers. To deal with a company that today's high-quality flat panel displays deliver crisp, clear visual quality at a reasonable price. The HP specification does not allow for the end user...
...that each customer receives the highest quality product available. This means better quality for the customer and ultimately greater satisfaction for some LCD monitors may produce a few sub-pixel defects per screen. Nevertheless, special practices and policies have come to reject any full or ...to me? Executive summary Flat panel LCD technology is because the current state-of its customers. To deal with a company that today's high-quality flat panel displays deliver crisp, clear visual quality at a reasonable price. The HP specification does not allow for the end user...
Understanding pixel defects in TFT flat panel monitors
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...detect the resulting light or dark pixel. How to spot a sub-pixel defect Due to their products. 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 ...will always represent the best panel quality standards which HP scans for pixel defects: Viewing distance of approximately 14 inches (36 cm) Ambient illumination of defects. HP specifications HP pixel defect specifications continue to be easier to spot than defective red ...
...detect the resulting light or dark pixel. How to spot a sub-pixel defect Due to their products. 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 ...will always represent the best panel quality standards which HP scans for pixel defects: Viewing distance of approximately 14 inches (36 cm) Ambient illumination of defects. HP specifications HP pixel defect specifications continue to be easier to spot than defective red ...
Understanding pixel defects in TFT flat panel monitors
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... or double sub-pixels stuck on the back of the HP monitor. International standards (ISO-9241) The International Standards Organization (ISO) has published its own set of acceptable pixel defects. As mentioned earlier, the HP specifications dictate no double sub-pixel 6 in most cases, HP displays will meet the more than 5 bright ("stuck on") subpixels...
... or double sub-pixels stuck on the back of the HP monitor. International standards (ISO-9241) The International Standards Organization (ISO) has published its own set of acceptable pixel defects. As mentioned earlier, the HP specifications dictate no double sub-pixel 6 in most cases, HP displays will meet the more than 5 bright ("stuck on") subpixels...
Understanding pixel defects in TFT flat panel monitors
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...voluntary environmental performance criteria established by TCO 9 HP quality and reliability helps reduce maintenance, repair, and support costs throughout the monitor lifecycle and result in a variety of networked environments to simulate years of LCD monitors is a set by the IEEE 1680 American... criteria. HP systematically pushes its lifecycle. Select HP business monitors are part of third-party devices in a high residual value for industry-standard best-of-breed products-and our line of real-world stress. The HP advantage The HP pixel defect specifications are designated...
...voluntary environmental performance criteria established by TCO 9 HP quality and reliability helps reduce maintenance, repair, and support costs throughout the monitor lifecycle and result in a variety of networked environments to simulate years of LCD monitors is a set by the IEEE 1680 American... criteria. HP systematically pushes its lifecycle. Select HP business monitors are part of third-party devices in a high residual value for industry-standard best-of-breed products-and our line of real-world stress. The HP advantage The HP pixel defect specifications are designated...
HP L1750, L1950, L1710, L1910, L1908w, L1908wm, L1945w, L1945wv, L2208w, and L2245w LCD Monitors User Guide
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About This Guide This guide provides information on setting up the monitor, installing drivers, using the on-screen display menu, troubleshooting and technical specifications. NOTE: Text set off in this manner provides important supplemental information. CAUTION: Text set off in bodily harm or loss of information. iii WARNING! Text set off in this manner indicates that failure to follow directions could result in damage to follow directions could result in this manner indicates that failure to equipment or loss of life.
About This Guide This guide provides information on setting up the monitor, installing drivers, using the on-screen display menu, troubleshooting and technical specifications. NOTE: Text set off in this manner provides important supplemental information. CAUTION: Text set off in bodily harm or loss of information. iii WARNING! Text set off in this manner indicates that failure to follow directions could result in damage to follow directions could result in this manner indicates that failure to equipment or loss of life.
HP L1750, L1950, L1710, L1910, L1908w, L1908wm, L1945w, L1945wv, L2208w, and L2245w LCD Monitors User Guide
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...models) ● USB cable provided to connect the monitor's USB hub to the USB connector on the computer (select models) ● Accessory rail on monitor to accept optional mounted devices, such as an HP speaker bar ● Plug and play capability if...; HP Display Assistant for adjusting monitor settings ● Software and documentation CD that includes software, monitor drivers, and product documentation ● Energy saver feature to meet requirements for reduced power consumption ● Intelligent Management AssetControl ● Compliant with the following regulated specifications: ...
...models) ● USB cable provided to connect the monitor's USB hub to the USB connector on the computer (select models) ● Accessory rail on monitor to accept optional mounted devices, such as an HP speaker bar ● Plug and play capability if...; HP Display Assistant for adjusting monitor settings ● Software and documentation CD that includes software, monitor drivers, and product documentation ● Energy saver feature to meet requirements for reduced power consumption ● Intelligent Management AssetControl ● Compliant with the following regulated specifications: ...
HP L1750, L1950, L1710, L1910, L1908w, L1908wm, L1945w, L1945wv, L2208w, and L2245w LCD Monitors User Guide
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...setup, posture, and health and work habits for the computer and its peripheral devices (such as having this monitor. This guide is located on the Web at http://www.hp.com/ergo and/or on page 52 in a grounded (earthed) outlet that no one is easily accessible ...strip or Uninterruptible Power Supply (UPS). For your safety, do not place anything on a cord or cable. WARNING! the power strips must be specifically labeled as a monitor, printer, scanner) to the equipment: • Do not disable the power cord grounding feature. The grounding plug is an important safety feature. ...
...setup, posture, and health and work habits for the computer and its peripheral devices (such as having this monitor. This guide is located on the Web at http://www.hp.com/ergo and/or on page 52 in a grounded (earthed) outlet that no one is easily accessible ...strip or Uninterruptible Power Supply (UPS). For your safety, do not place anything on a cord or cable. WARNING! the power strips must be specifically labeled as a monitor, printer, scanner) to the equipment: • Do not disable the power cord grounding feature. The grounding plug is an important safety feature. ...
HP L1750, L1950, L1710, L1910, L1908w, L1908wm, L1945w, L1945wv, L2208w, and L2245w LCD Monitors User Guide
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... and .ICM files can install on page 21 in accordance with the International Color Consortium (ICC) Profile Format specification. 20 Chapter 4 Operating the Monitor The .ICM file contains a monitor color system profile. This file is written in this feature. Plug and Play does not work correctly without installing... the .INF file. NOTE: The ICM color profile is activated from the HP monitors support Web site. Monitor Plug and Play compatibility requires that the computer's graphic card is Microsoft Windows Plug and Play compatible and the...
... and .ICM files can install on page 21 in accordance with the International Color Consortium (ICC) Profile Format specification. 20 Chapter 4 Operating the Monitor The .ICM file contains a monitor color system profile. This file is written in this feature. Plug and Play does not work correctly without installing... the .INF file. NOTE: The ICM color profile is activated from the HP monitors support Web site. Monitor Plug and Play compatibility requires that the computer's graphic card is Microsoft Windows Plug and Play compatible and the...
HP L1750, L1950, L1710, L1910, L1908w, L1908wm, L1945w, L1945wv, L2208w, and L2245w LCD Monitors User Guide
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...you purchased the product. Product Environmental Notices 53 Product Environmental Notices Energy Star Compliance Monitors that might require special handling at the time of the U.S. Disposal of this ...eiae.org. Disposal of Waste Equipment by handing it is recycled in the display LCD that are marked with your waste equipment at end-of-life. Instead, it over...Packard Company has determined that protects human health and the environment. Specific details on any other products. Materials Disposal This HP product contains mercury in the fluorescent lamp in a manner that...
...you purchased the product. Product Environmental Notices 53 Product Environmental Notices Energy Star Compliance Monitors that might require special handling at the time of the U.S. Disposal of this ...eiae.org. Disposal of Waste Equipment by handing it is recycled in the display LCD that are marked with your waste equipment at end-of-life. Instead, it over...Packard Company has determined that protects human health and the environment. Specific details on any other products. Materials Disposal This HP product contains mercury in the fluorescent lamp in a manner that...
HP L1750, L1950, L1710, L1910, L1908w, L1908wm, L1945w, L1945wv, L2208w, and L2245w LCD Monitors User Guide
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...defective whole pixel and is not specific to produce LCDs with fewer cosmetic imperfections and HP will adjust guidelines as small bright or dark spots. D LCD Monitor Quality and Pixel Policy The TFT monitor uses high-precision technology, manufactured according to HP standards, to all vendors and... cosmetic imperfections that , over time, the industry will continue to improve its ability to the HP LCD. These imperfections are made. 55 To locate defective pixels, the monitor should be viewed under normal operating conditions, in normal operating mode at a supported resolution and ...
...defective whole pixel and is not specific to produce LCDs with fewer cosmetic imperfections and HP will adjust guidelines as small bright or dark spots. D LCD Monitor Quality and Pixel Policy The TFT monitor uses high-precision technology, manufactured according to HP standards, to all vendors and... cosmetic imperfections that , over time, the industry will continue to improve its ability to the HP LCD. These imperfections are made. 55 To locate defective pixels, the monitor should be viewed under normal operating conditions, in normal operating mode at a supported resolution and ...
HP L1750, L1950, L1710, and L1908w LCD Monitors - User Guide
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NOTE: Text set off in this manner provides important supplemental information. iii CAUTION: Text set off in this manner indicates that failure to follow directions could result in this manner indicates that failure to equipment or loss of life. Text set off 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. WARNING!
NOTE: Text set off in this manner provides important supplemental information. iii CAUTION: Text set off in this manner indicates that failure to follow directions could result in this manner indicates that failure to equipment or loss of life. Text set off 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. WARNING!
HP L1750, L1950, L1710, and L1908w LCD Monitors - User Guide
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Sleep Timer Mode ...31 HP Display LiteSaver ...32 Installing the HP Display LiteSaver Software 32 sRGB Support ...33 Changing the Color Temperature 33 Installing the sRGB ICM... Solving Common Problems ...35 Using the Worldwide Web ...36 Preparing to Call Technical Support 36 Appendix B Technical Specifications L1750 Model ...37 L1950 Model ...38 L1710 Model ...39 L1910 Model ...40 L1908w Model ...41 Recognizing Preset Display Resolutions 42...by Users in Private Household in the European Union ...47 Restriction of Hazardous Substances (RoHS 48 Appendix D LCD Monitor Quality and Pixel Policy vi
Sleep Timer Mode ...31 HP Display LiteSaver ...32 Installing the HP Display LiteSaver Software 32 sRGB Support ...33 Changing the Color Temperature 33 Installing the sRGB ICM... Solving Common Problems ...35 Using the Worldwide Web ...36 Preparing to Call Technical Support 36 Appendix B Technical Specifications L1750 Model ...37 L1950 Model ...38 L1710 Model ...39 L1910 Model ...40 L1908w Model ...41 Recognizing Preset Display Resolutions 42...by Users in Private Household in the European Union ...47 Restriction of Hazardous Substances (RoHS 48 Appendix D LCD Monitor Quality and Pixel Policy vi
HP L1750, L1950, L1710, and L1908w LCD Monitors - User Guide
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● Security slot provision on rear of monitor for optional cable lock ● Internal speakers (select models) ● Audio input signal cable (select models) ● Cable management feature...and screen optimization ● HP Display Assistant for adjusting monitor settiings ● Software and documentation CD that includes software, monitor drivers, and product documentation ● Energy saver feature to meet requirements for reduced power consumption ● Intelligent Management AssetControl ● Compliant with the following regulated specifications: ◦ European Union CE...
● Security slot provision on rear of monitor for optional cable lock ● Internal speakers (select models) ● Audio input signal cable (select models) ● Cable management feature...and screen optimization ● HP Display Assistant for adjusting monitor settiings ● Software and documentation CD that includes software, monitor drivers, and product documentation ● Energy saver feature to meet requirements for reduced power consumption ● Intelligent Management AssetControl ● Compliant with the following regulated specifications: ◦ European Union CE...
HP L1750, L1950, L1710, and L1908w LCD Monitors - User Guide
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... pull on power cords or cables. Not all power cords for the computer and its peripheral devices (such as having this monitor. the power strips must be specifically labeled as a monitor, printer, scanner) to the equipment: • Do not disable the power cord grounding feature. Use a power strip whose.... 2 Safety and Maintenance Guidelines Important Safety Information A power cord is easily accessible at http://www.hp.com/ergo and/or on the documentation CD, if one is used, use with the monitor, refer to the Power Cord Set Requirements on page 46 in a grounded (earthed) outlet that...
... pull on power cords or cables. Not all power cords for the computer and its peripheral devices (such as having this monitor. the power strips must be specifically labeled as a monitor, printer, scanner) to the equipment: • Do not disable the power cord grounding feature. Use a power strip whose.... 2 Safety and Maintenance Guidelines Important Safety Information A power cord is easily accessible at http://www.hp.com/ergo and/or on the documentation CD, if one is used, use with the monitor, refer to the Power Cord Set Requirements on page 46 in a grounded (earthed) outlet that...
HP L1750, L1950, L1710, and L1908w LCD Monitors - User Guide
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...HP monitors support Web site. This file is VESA DDC2-compliant and that support this chapter. The Image Color Matching File The .ICM files are data files that comes with the monitor contains files you can install on page 22 in accordance with the International Color Consortium (ICC) Profile Format specification.... See Downloading from the Worldwide Web on the computer: ● an .INF (Information) file ● an .ICM (Image Color Matching) file ● auto-adjustment pattern utility ● additional software for the monitor model NOTE: If the monitor does ...
...HP monitors support Web site. This file is VESA DDC2-compliant and that support this chapter. The Image Color Matching File The .ICM files are data files that comes with the monitor contains files you can install on page 22 in accordance with the International Color Consortium (ICC) Profile Format specification.... See Downloading from the Worldwide Web on the computer: ● an .INF (Information) file ● an .ICM (Image Color Matching) file ● auto-adjustment pattern utility ● additional software for the monitor model NOTE: If the monitor does ...
HP L1750, L1950, L1710, and L1908w LCD Monitors - User Guide
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L1750, L1950, L1710, and L1910 Models Table B-6 Factory Preset Modes Preset Pixel Format Horz Freq (kHz) 1 640 × 480 31.5 2 640 × 480 37.9 3 640 × ...; 768 Horz Freq (kHz) 31.5 37.5 31.5 37.9 46.9 49.7 48.4 Vert Freq (Hz) 59.9 75.0 70.1 60.3 75.0 74.5 60.0 42 Appendix B Technical Specifications This monitor automatically recognized these preset modes and they will appear properly sized and centered on the screen. Recognizing Preset Display Resolutions The display resolutions listed below...
L1750, L1950, L1710, and L1910 Models Table B-6 Factory Preset Modes Preset Pixel Format Horz Freq (kHz) 1 640 × 480 31.5 2 640 × 480 37.9 3 640 × ...; 768 Horz Freq (kHz) 31.5 37.5 31.5 37.9 46.9 49.7 48.4 Vert Freq (Hz) 59.9 75.0 70.1 60.3 75.0 74.5 60.0 42 Appendix B Technical Specifications This monitor automatically recognized these preset modes and they will appear properly sized and centered on the screen. Recognizing Preset Display Resolutions The display resolutions listed below...
HP L1750, L1950, L1710, and L1908w LCD Monitors - User Guide
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... your waste equipment at end-of-life. Product Environmental Notices Energy Star Compliance Monitors that might require special handling at the time of disposal will help to conserve...to dispose of your household waste. Materials Disposal This HP product contains mercury in the fluorescent lamp in the display LCD that are marked with this material can be found ...in a manner that protects human health and the environment. For more information about where you can be regulated because of environmental considerations. Specific...
... your waste equipment at end-of-life. Product Environmental Notices Energy Star Compliance Monitors that might require special handling at the time of disposal will help to conserve...to dispose of your household waste. Materials Disposal This HP product contains mercury in the fluorescent lamp in the display LCD that are marked with this material can be found ...in a manner that protects human health and the environment. For more information about where you can be regulated because of environmental considerations. Specific...
HP L1750, L1950, L1710, and L1908w LCD Monitors - User Guide
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...or it is always off (a dark spot on a specific background. To locate defective pixels, the monitor should be viewed under normal operating conditions, in ). HP expects that appear as improvements are caused by all LCD displays used in products supplied by one or more visible ...not specific to all vendors and is small and only visible on a bright background). This is common to the HP LCD. D LCD Monitor Quality and Pixel Policy The TFT monitor uses high-precision technology, manufactured according to HP standards, to produce LCDs with fewer cosmetic imperfections and HP will...
...or it is always off (a dark spot on a specific background. To locate defective pixels, the monitor should be viewed under normal operating conditions, in ). HP expects that appear as improvements are caused by all LCD displays used in products supplied by one or more visible ...not specific to all vendors and is small and only visible on a bright background). This is common to the HP LCD. D LCD Monitor Quality and Pixel Policy The TFT monitor uses high-precision technology, manufactured according to HP standards, to produce LCDs with fewer cosmetic imperfections and HP will...
HP Display Assistant User Guide
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You can not be loaded at any combination of adjustments made with HP Display Assistant. In addition to the customized presets, HP Display Assistant has a Factory Default Preset that you to save all the monitor settings. Loading this preset will reset the display to the manufacturer ...an easy way to restore the image if the monitor is already configured. Presets can load the factory default preset to restore the monitor to the recommended factory settings. You can be based on multi-user configurations, content specific material, application requirements, and changes in the ...
You can not be loaded at any combination of adjustments made with HP Display Assistant. In addition to the customized presets, HP Display Assistant has a Factory Default Preset that you to save all the monitor settings. Loading this preset will reset the display to the manufacturer ...an easy way to restore the image if the monitor is already configured. Presets can load the factory default preset to restore the monitor to the recommended factory settings. You can be based on multi-user configurations, content specific material, application requirements, and changes in the ...