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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...a reasonable price. Doing business with these inevitable minor flaws, HP has developed a set of quality to its standards for sub-pixel defect specifications, and as a result, has adopted a more stringent unified standard for some LCD monitors may produce a few sub-pixel defects per screen. To deal... with HP gives you understand how pixel and sub-pixel defects occur, and what HP does about it? Executive summary Flat panel LCD technology is because the current state-of-...
...a reasonable price. Doing business with these inevitable minor flaws, HP has developed a set of quality to its standards for sub-pixel defect specifications, and as a result, has adopted a more stringent unified standard for some LCD monitors may produce a few sub-pixel defects per screen. To deal... with HP gives you understand how pixel and sub-pixel defects occur, and what HP does about it? Executive summary Flat panel LCD technology is because the current state-of-...
Understanding pixel defects in TFT flat panel monitors
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... and applying a voltage to a given row and column switches the pixel at each of the LC molecules electrically, causing them to computer monitors. Unfortunately, when the drive voltage is generated by the voltage applied across the material. Combining red, green, and blue light in computer displays..., this type of all HP LCD monitors as well as "light valves"-letting light either pass through the panel from calculators to effectively act as HP iPAQ devices and HP notebook displays. If the panel is driven such that the pixels are ...
... and applying a voltage to a given row and column switches the pixel at each of the LC molecules electrically, causing them to computer monitors. Unfortunately, when the drive voltage is generated by the voltage applied across the material. Combining red, green, and blue light in computer displays..., this type of all HP LCD monitors as well as "light valves"-letting light either pass through the panel from calculators to effectively act as HP iPAQ devices and HP notebook displays. If the panel is driven such that the pixels are ...
Understanding pixel defects in TFT flat panel monitors
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... approximately 14 inches (36 cm) Ambient illumination of 300 to 500 lux (average room lighting can reasonably be viewed under which HP scans for HP monitors manufactured before May 2009: Bright sub-pixel defects: Dark sub-pixel defects: Total sub-pixel defects: Full pixel defects: 3 maximum 5 ...supported resolution and refresh rate, from 60 to 600 lux; Because they are as follows: Table 1. To locate defective sub-pixels, the monitor should be achieved, consistent with the defective sub-pixel hue. How to spot a sub-pixel defect Due to their products. In a ...
... approximately 14 inches (36 cm) Ambient illumination of 300 to 500 lux (average room lighting can reasonably be viewed under which HP scans for HP monitors manufactured before May 2009: Bright sub-pixel defects: Dark sub-pixel defects: Total sub-pixel defects: Full pixel defects: 3 maximum 5 ...supported resolution and refresh rate, from 60 to 600 lux; Because they are as follows: Table 1. To locate defective sub-pixels, the monitor should be achieved, consistent with the defective sub-pixel hue. How to spot a sub-pixel defect Due to their products. In a ...
Understanding pixel defects in TFT flat panel monitors
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...9241 set of specifications for pixel defects, contained within the above listed range of each; These identify three classes for HP monitors manufactured in most cases, HP displays will meet the more than 5 bright ("stuck on the back of our products exceed the ISO Class 2 ... As a result of these tight specifications, the majority of all HP monitors are shipping with no full pixel defects are permitted). Class 3 panels permit any or all of the HP monitor. As mentioned earlier, the HP specifications dictate no double sub-pixel 6 International standards (ISO-9241)...
...9241 set of specifications for pixel defects, contained within the above listed range of each; These identify three classes for HP monitors manufactured in most cases, HP displays will meet the more than 5 bright ("stuck on the back of our products exceed the ISO Class 2 ... As a result of these tight specifications, the majority of all HP monitors are shipping with no full pixel defects are permitted). Class 3 panels permit any or all of the HP monitor. As mentioned earlier, the HP specifications dictate no double sub-pixel 6 International standards (ISO-9241)...
Understanding pixel defects in TFT flat panel monitors
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... Product Environmental Assessment Tool (EPEAT) is a testament to that identifies 23 required and 28 optional criteria. The HP advantage The HP pixel defect specifications are part of LCD monitors is a set by TCO 9 The HP L1950g and HP L2245wg are designated EPEAT Gold, which indicates they meet the demanding emissions, environmental, and ecological guidelines known as...
... Product Environmental Assessment Tool (EPEAT) is a testament to that identifies 23 required and 28 optional criteria. The HP advantage The HP pixel defect specifications are part of LCD monitors is a set by TCO 9 The HP L1950g and HP L2245wg are designated EPEAT Gold, which indicates they meet the demanding emissions, environmental, and ecological guidelines known as...
Understanding pixel defects in TFT flat panel monitors
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...-free, round-the-clock telephone hotline support (terms and conditions may vary by region). For more details visit www.hp.com/hps/support. 10 HP service and support HP LCD monitors are protected under the industry-leading HP support umbrella, which includes 65,000 sales and service professionals in warranty. Additional support is still in 160 countries...
...-free, round-the-clock telephone hotline support (terms and conditions may vary by region). For more details visit www.hp.com/hps/support. 10 HP service and support HP LCD monitors are protected under the industry-leading HP support umbrella, which includes 65,000 sales and service professionals in warranty. Additional support is still in 160 countries...
HP Display Assistant User Guide
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... quality. The utility guides you and your monitor into a CD or DVD drive on a monitor, you correctly adjust the monitor settings. All adjustments to the display are best suited for you through the monitor adjustment process with your environment. HP Display Assistant supports Microsoft Windows 98SE, Me,...the image can be challenging. To get the best image on your unique setting. The CD will automatically run and display the HP Monitors Software and Documentation window. 2. Furthermore, there is a software utility that allows you to quickly and accurately adjust the display ...
... quality. The utility guides you and your monitor into a CD or DVD drive on a monitor, you correctly adjust the monitor settings. All adjustments to the display are best suited for you through the monitor adjustment process with your environment. HP Display Assistant supports Microsoft Windows 98SE, Me,...the image can be challenging. To get the best image on your unique setting. The CD will automatically run and display the HP Monitors Software and Documentation window. 2. Furthermore, there is a software utility that allows you to quickly and accurately adjust the display ...
HP Display Assistant User Guide
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... the Yes button to confirm a successful uninstall. 7. Wait until Windows shows the dialog box to complete the uninstall. Click the Remove button to begin uninstalling HP Display Assistant. 6. Uninstalling HP Display Assistant HP Display Assistant can be accessed through any monitor setting. 2 Chapter 1 Overview Click the Yes button to uninstall the program. 5.
... the Yes button to confirm a successful uninstall. 7. Wait until Windows shows the dialog box to complete the uninstall. Click the Remove button to begin uninstalling HP Display Assistant. 6. Uninstalling HP Display Assistant HP Display Assistant can be accessed through any monitor setting. 2 Chapter 1 Overview Click the Yes button to uninstall the program. 5.
HP Display Assistant User Guide
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Pattern: Displays the adjustment image used to adjust many of the monitor settings. ?: Opens the online help file in OSD mode. Reset: Restores the monitor value for the active adjustment pane to its factory setting. Common Controls The following are common ... button again. Slider: Increases or decreases the monitor value for the current adjustment pane. Common Controls 3 X: Closes HP Display Assistant. +/-: Increases or decreases the monitor value by one unit for the current adjustment pane. Undo: Restores the monitor value for the active adjustment pane to its previous...
Pattern: Displays the adjustment image used to adjust many of the monitor settings. ?: Opens the online help file in OSD mode. Reset: Restores the monitor value for the active adjustment pane to its factory setting. Common Controls The following are common ... button again. Slider: Increases or decreases the monitor value for the current adjustment pane. Common Controls 3 X: Closes HP Display Assistant. +/-: Increases or decreases the monitor value by one unit for the current adjustment pane. Undo: Restores the monitor value for the active adjustment pane to its previous...
HP Display Assistant User Guide
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...other than the preferred setting, the clarity of the tab opens an adjustment pane for OSD mode are using the digital connection of the monitor settings. The adjustment controls for that setting. Adjusting the Settings Click on a settings button on the left side of the tab to...display to load the adjustment image then use the slider or the +/- Then use the manufacturer's recommended settings. If your graphics card and monitor.) Opens the Focus adjustment pane. Brightness: Opens the Brightness adjustment pane. Click the Pattern button to load the adjustment image then use the...
...other than the preferred setting, the clarity of the tab opens an adjustment pane for OSD mode are using the digital connection of the monitor settings. The adjustment controls for that setting. Adjusting the Settings Click on a settings button on the left side of the tab to...display to load the adjustment image then use the slider or the +/- Then use the manufacturer's recommended settings. If your graphics card and monitor.) Opens the Focus adjustment pane. Brightness: Opens the Brightness adjustment pane. Click the Pattern button to load the adjustment image then use the...
HP Display Assistant User Guide
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Click the Pattern button to load the adjustment image then click the control buttons on the monitor graphic above the slider to the Presets on page 10 section. The top three sliders control RGB gain (the amount of white in the color), ... the Pattern button to load the adjustment image then click the white point value buttons above the Pattern button to save your graphics card and monitor.) Opens the Position adjustment pane. On the File tab, highlight the name in the color). Position: (This settings button is capable of white points for...
Click the Pattern button to load the adjustment image then click the control buttons on the monitor graphic above the slider to the Presets on page 10 section. The top three sliders control RGB gain (the amount of white in the color), ... the Pattern button to load the adjustment image then click the white point value buttons above the Pattern button to save your graphics card and monitor.) Opens the Position adjustment pane. On the File tab, highlight the name in the color). Position: (This settings button is capable of white points for...
HP Display Assistant User Guide
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...bottom right corner of fonts and graphics will guide you through a predefined step-by-step process with instructions and patterns for adjusting each monitor setting. NOTE: The Color Calibration feature requires the display to completely eliminate residual noise. Click the Auto Setup button to use the Phase... The Wizard will be set the display to the preferred resolution. buttons to make adjustments in Wizard mode. If your graphics card and monitor.) Opens the Focus adjustment pane. 3 Wizard Mode Wizard Tab Wizard mode guides you are using the digital connection of your display is...
...bottom right corner of fonts and graphics will guide you through a predefined step-by-step process with instructions and patterns for adjusting each monitor setting. NOTE: The Color Calibration feature requires the display to completely eliminate residual noise. Click the Auto Setup button to use the Phase... The Wizard will be set the display to the preferred resolution. buttons to make adjustments in Wizard mode. If your graphics card and monitor.) Opens the Focus adjustment pane. 3 Wizard Mode Wizard Tab Wizard mode guides you are using the digital connection of your display is...
HP Display Assistant User Guide
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... box, enter a new name, then click the Save button to position the grid so that makes the display match a piece of your graphics card and monitor.) Opens the Position adjustment pane. Wizard Mode Adjustment Sequence 7 Click the control buttons on page 10 section. NOTE: Once the adjustment process is not available... pane. Use a white point value that all edges are using the digital connection of white paper. For more information, refer to the Presets on the monitor graphic to save the settings as a preset.
... box, enter a new name, then click the Save button to position the grid so that makes the display match a piece of your graphics card and monitor.) Opens the Position adjustment pane. Wizard Mode Adjustment Sequence 7 Click the control buttons on page 10 section. NOTE: Once the adjustment process is not available... pane. Use a white point value that all edges are using the digital connection of white paper. For more information, refer to the Presets on the monitor graphic to save the settings as a preset.
HP Display Assistant User Guide
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...displays do not have no affect. Options Tab 9 The drop-down menu allows you turn on your system. ● Set Transparency: Allows the HP Display Assistant interface to be sent to switch between the installed language and English. The Tech. Update: Opens the Update pane. Selecting a source ... Input: Opens the Input pane for selecting either Analog In (analog VGA mode) or Digital In (digital mode) as the input source for the monitor. The Tech. Help: Opens the Help pane. The Check Update button requires an Internet connection to 10 languages. Transparency set to 0% is not...
...displays do not have no affect. Options Tab 9 The drop-down menu allows you turn on your system. ● Set Transparency: Allows the HP Display Assistant interface to be sent to switch between the installed language and English. The Tech. Update: Opens the Update pane. Selecting a source ... Input: Opens the Input pane for selecting either Analog In (analog VGA mode) or Digital In (digital mode) as the input source for the monitor. The Tech. Help: Opens the Help pane. The Check Update button requires an Internet connection to 10 languages. Transparency set to 0% is not...
HP Display Assistant User Guide
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... and Factory Default Presets Customized presets allow you have created. In addition to restore the image if the monitor is already configured. The Factory Default Preset provides an easy way to the customized presets, HP Display Assistant has a Factory Default Preset that is poorly adjusted. Loading this preset will reset the display...
... and Factory Default Presets Customized presets allow you have created. In addition to restore the image if the monitor is already configured. The Factory Default Preset provides an easy way to the customized presets, HP Display Assistant has a Factory Default Preset that is poorly adjusted. Loading this preset will reset the display...
HP Display Assistant User Guide
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... plug-ins, or no plug-ins. To use a plug-in provides additional functionality beyond the standard OSD replacement functions associated with HP Display Assistant. Asset Management NOTE: The Asset Management feature is available on select models. Asset Management provides the IT Manager the necessary... and SNMP protocols. The version of the tab. To verify that Asset Management Status is set to remotely view and control the monitor. Asset Management and Theft Deterrence are available on the client, click the Asset Management button and verify that Asset Management is installed...
... plug-ins, or no plug-ins. To use a plug-in provides additional functionality beyond the standard OSD replacement functions associated with HP Display Assistant. Asset Management NOTE: The Asset Management feature is available on select models. Asset Management provides the IT Manager the necessary... and SNMP protocols. The version of the tab. To verify that Asset Management Status is set to remotely view and control the monitor. Asset Management and Theft Deterrence are available on the client, click the Asset Management button and verify that Asset Management is installed...
HP Display Assistant User Guide
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...NOTE: Before proceeding, it is complete, you will remove blue tint from Web sites and specifies a color matching technique to provide consistent monitor and output device color. Click the Start button to launch the color calibration window. 4. Adjust the display's height and tilt for ...the color ring. Click the Color Calibration button on the Plug-Ins tab. 2. Do not change your LCD. Ensure that you would for normal viewing. Color Calibration The HP Display Assistant Color Calibration feature makes it possible to achieve sRGB color on your viewing angle during the ...
...NOTE: Before proceeding, it is complete, you will remove blue tint from Web sites and specifies a color matching technique to provide consistent monitor and output device color. Click the Start button to launch the color calibration window. 4. Adjust the display's height and tilt for ...the color ring. Click the Color Calibration button on the Plug-Ins tab. 2. Do not change your LCD. Ensure that you would for normal viewing. Color Calibration The HP Display Assistant Color Calibration feature makes it possible to achieve sRGB color on your viewing angle during the ...
HP Display Assistant User Guide
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... Follow the instructions (below and follow the instructions for creating and storing the PIN to this information. Once both actions occur, the monitor detects theft and begins a countdown based upon the time value established by the user (in both PIN boxes. Setting Up Theft Deterrence...the screen. 16 Chapter 6 Plug-Ins The HP Display Assistant's Theft Deterrence feature minimizes theft or unauthorized relocation of the PIN is not considered an HP Service event and is not covered under the product warranty. Dual-monitor use is not supported. Loss of the display....
... Follow the instructions (below and follow the instructions for creating and storing the PIN to this information. Once both actions occur, the monitor detects theft and begins a countdown based upon the time value established by the user (in both PIN boxes. Setting Up Theft Deterrence...the screen. 16 Chapter 6 Plug-Ins The HP Display Assistant's Theft Deterrence feature minimizes theft or unauthorized relocation of the PIN is not considered an HP Service event and is not covered under the product warranty. Dual-monitor use is not supported. Loss of the display....
HP Display Assistant User Guide
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... effectively cancels your PIN number. Theft Deterrence 17 Overriding Theft Deterrence Mode To override Theft Deterrence, press the + and - To reestablish Theft Deterrence, you must either disable Theft Deterrence to completely avoid triggering a theft condition or install HP Display Assistant on the new computer and enter...seconds. buttons on power to the computer. NOTE: If Theft Deterrence is enabled and you want to move your monitor to a different computer, you turn on the front panel of the monitor at the same time and hold the buttons down for "Setting Up Theft Deterrence."
... effectively cancels your PIN number. Theft Deterrence 17 Overriding Theft Deterrence Mode To override Theft Deterrence, press the + and - To reestablish Theft Deterrence, you must either disable Theft Deterrence to completely avoid triggering a theft condition or install HP Display Assistant on the new computer and enter...seconds. buttons on power to the computer. NOTE: If Theft Deterrence is enabled and you want to move your monitor to a different computer, you turn on the front panel of the monitor at the same time and hold the buttons down for "Setting Up Theft Deterrence."