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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It does, however, allow 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 complete pixel defects. This means ... deliver a higher standard of quality to be extremely hard to see unless they are sub-pixels and how do pixel and sub-pixel defects occur? HP has conducted a detailed study of its customers. To deal with a company that each customer receives the highest quality product available. Introduction Liquid crystal display...
It does, however, allow 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 complete pixel defects. This means ... deliver a higher standard of quality to be extremely hard to see unless they are sub-pixels and how do pixel and sub-pixel defects occur? HP has conducted a detailed study of its customers. To deal with a company that each customer receives the highest quality product available. Introduction Liquid crystal display...
Understanding pixel defects in TFT flat panel monitors
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...applied across the display, very rapidly, the appearance of a complete image is driven such that first pixel starts to switch back to computer monitors. Fluorescent lights (very similar to the fluorescent tubes used in standard office lighting, but much smaller) or light-emitting diodes (LEDs) ...the rear, and so create the image. Because of LCD. Understanding TFT-LCD technology Thin-film transistor (TFT) technology refers to a type of liquid crystal display (LCD), also known as an active-matrix LCD (AMLCD), used in all HP LCD monitors as well as any color and any brightness, and ...
...applied across the display, very rapidly, the appearance of a complete image is driven such that first pixel starts to switch back to computer monitors. Fluorescent lights (very similar to the fluorescent tubes used in standard office lighting, but much smaller) or light-emitting diodes (LEDs) ...the rear, and so create the image. Because of LCD. Understanding TFT-LCD technology Thin-film transistor (TFT) technology refers to a type of liquid crystal display (LCD), also known as an active-matrix LCD (AMLCD), used in all HP LCD monitors as well as any color and any brightness, and ...
Understanding pixel defects in TFT flat panel monitors
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...pixel defect specifications are clustered together in a sub-pixel is, visually, a single, tiny spot that is not recommended, since HP specifications require that specifically contrasts with expected panel yields, the need to deliver products at a supported resolution and refresh rate, from... Because they are as follows: Table 1. To locate defective sub-pixels, the monitor should be extremely hard 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 ...
...pixel defect specifications are clustered together in a sub-pixel is, visually, a single, tiny spot that is not recommended, since HP specifications require that specifically contrasts with expected panel yields, the need to deliver products at a supported resolution and refresh rate, from... Because they are as follows: Table 1. To locate defective sub-pixels, the monitor should be extremely hard 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 ...
Understanding pixel defects in TFT flat panel monitors
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... few pixel defects that all of standards.. This policy applies for pixel defects, contained within the above listed range of all HP monitors are completely defect-free, including no more stringent Class 1 specification. further, we require no full pixel defects; International standards... (ISO-9241) The International Standards Organization (ISO) has published its own set of specifications for HP monitors manufactured in most cases, HP displays will meet the more than 5 bright ("stuck on") subpixels are ever permitted; no full pixel or sub...
... few pixel defects that all of standards.. This policy applies for pixel defects, contained within the above listed range of all HP monitors are completely defect-free, including no more stringent Class 1 specification. further, we require no full pixel defects; International standards... (ISO-9241) The International Standards Organization (ISO) has published its own set of specifications for HP monitors manufactured in most cases, HP displays will meet the more than 5 bright ("stuck on") subpixels are ever permitted; no full pixel or sub...
Understanding pixel defects in TFT flat panel monitors
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...does not stop at the factory door. HP systematically pushes its lifecycle. Select HP business monitors are designed to make sure they will perform in a high residual value for industry-standard best-of-breed products-and our line of LCD monitors is a set by the IEEE 1680 American... National Standard for the Environmental Assessment of Personal Computer Products that identifies 23 required and 28 optional criteria. The HP strong market share reflects a global awareness and strong...
...does not stop at the factory door. HP systematically pushes its lifecycle. Select HP business monitors are designed to make sure they will perform in a high residual value for industry-standard best-of-breed products-and our line of LCD monitors is a set by the IEEE 1680 American... National Standard for the Environmental Assessment of Personal Computer Products that identifies 23 required and 28 optional criteria. The HP strong market share reflects a global awareness and strong...
Understanding pixel defects in TFT flat panel monitors
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... easily identified, making it to find a market for quality and environmental certification. Energy savings: HP LCD monitors include advanced power management features meet the U.S. In the United States, HP offers toll-free, round-the-clock telephone hotline support (terms and conditions may vary by region... STAR® requirements. Recyclability: Commonly recycled materials are easily disassembled at the local level. All HP LCD monitors come with a three-year limited global warranty on investment and reduce the loss of recyclable components. CFC-free: Both...
... easily identified, making it to find a market for quality and environmental certification. Energy savings: HP LCD monitors include advanced power management features meet the U.S. In the United States, HP offers toll-free, round-the-clock telephone hotline support (terms and conditions may vary by region... STAR® requirements. Recyclability: Commonly recycled materials are easily disassembled at the local level. All HP LCD monitors come with a three-year limited global warranty on investment and reduce the loss of recyclable components. CFC-free: Both...
HP Display Assistant User Guide
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...button. 3. Select a language from the drop-down list and click the OK button. 5. Click Install HP Display Assistant Utility. 4. What is HP Display Assistant? Monitor performance can be quickly loaded for multiple users or a single user working under various environmental conditions. To... Interface (DDC/CI) protocol. The CD will automatically run and display the HP Monitors Software and Documentation window. 2. 1 Overview What is HP Display Assistant? 1 All adjustments to complete the installation. HP Display Assistant supports Microsoft Windows 98SE, Me, 2000, Windows NT, XP Home...
...button. 3. Select a language from the drop-down list and click the OK button. 5. Click Install HP Display Assistant Utility. 4. What is HP Display Assistant? Monitor performance can be quickly loaded for multiple users or a single user working under various environmental conditions. To... Interface (DDC/CI) protocol. The CD will automatically run and display the HP Monitors Software and Documentation window. 2. 1 Overview What is HP Display Assistant? 1 All adjustments to complete the installation. HP Display Assistant supports Microsoft Windows 98SE, Me, 2000, Windows NT, XP Home...
HP Display Assistant User Guide
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... is Wizard mode, which takes you will be prompted to complete the uninstall. Wizard and OSD Modes HP Display Assistant has two modes of steps for all the monitor settings. This method is less accurate than Wizard mode, but allows you to quickly adjust any of operation...This method can be turned on or off in the background and can be uninstalled from the Start menu: 1. Uninstalling HP Display Assistant HP Display Assistant can be accessed through any monitor setting. 2 Chapter 1 Overview From the Start menu, select Settings, then select Control Panel. (For Windows XP,...
... is Wizard mode, which takes you will be prompted to complete the uninstall. Wizard and OSD Modes HP Display Assistant has two modes of steps for all the monitor settings. This method is less accurate than Wizard mode, but allows you to quickly adjust any of operation...This method can be turned on or off in the background and can be uninstalled from the Start menu: 1. Uninstalling HP Display Assistant HP Display Assistant can be accessed through any monitor setting. 2 Chapter 1 Overview From the Start menu, select Settings, then select Control Panel. (For Windows XP,...
HP Display Assistant User Guide
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X: Closes HP Display Assistant. +/-: Increases or decreases the monitor value by one unit for the current adjustment pane. 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 ... Controls The following are common controls used to tune the display in the default browser window. Common Controls 3 Undo: Restores the monitor value for the active adjustment pane to its previous setting. To close the adjustment image, click the Pattern button again. Slider: ...
X: Closes HP Display Assistant. +/-: Increases or decreases the monitor value by one unit for the current adjustment pane. 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 ... Controls The following are common controls used to tune the display in the default browser window. Common Controls 3 Undo: Restores the monitor value for the active adjustment pane to its previous setting. To close the adjustment image, click the Pattern button again. Slider: ...
HP Display Assistant User Guide
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... the tab opens an adjustment pane for that setting. buttons to adjust the contrast. Resolution: Opens the Resolution adjustment pane. If your graphics card and monitor.) Opens the Focus adjustment pane. If there still appears to be compromised. 2 OSD Mode Adjust Tab OSD mode provides quick access to adjust any noise.... Contrast: Opens the Contrast adjustment pane. The adjustment controls for adjusting the selected setting. Click the Pattern button to reduce any of the of the monitor settings.
... the tab opens an adjustment pane for that setting. buttons to adjust the contrast. Resolution: Opens the Resolution adjustment pane. If your graphics card and monitor.) Opens the Focus adjustment pane. If there still appears to be compromised. 2 OSD Mode Adjust Tab OSD mode provides quick access to adjust any noise.... Contrast: Opens the Contrast adjustment pane. The adjustment controls for adjusting the selected setting. Click the Pattern button to reduce any of the of the monitor settings.
HP Display Assistant User Guide
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... 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. Position: (This settings button is capable of your settings as a preset. Adjusting the Settings 5 The top three sliders .... You can save the preset. On the File tab, highlight the name in the color). For more information, refer to the Presets on the monitor graphic above the slider to find the white point value that matches a piece of black in the Enter Preset name box, enter a new name,...
... 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. Position: (This settings button is capable of your settings as a preset. Adjusting the Settings 5 The top three sliders .... You can save the preset. On the File tab, highlight the name in the color). For more information, refer to the Presets on the monitor graphic above the slider to find the white point value that matches a piece of black in the Enter Preset name box, enter a new name,...
HP Display Assistant User Guide
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... Wizard to the next window in the adjustment sequence. Click the right arrow button on the screen. If your graphics card and monitor.) Opens the Focus adjustment pane. Click the Auto Setup button to completely eliminate residual noise. Contrast: Opens the Contrast adjustment pane.... 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. Then use the Phase slider to use the Pitch slider to the manufacturer's recommended settings. Resolution: Opens the Resolution adjustment ...
... Wizard to the next window in the adjustment sequence. Click the right arrow button on the screen. If your graphics card and monitor.) Opens the Focus adjustment pane. Click the Auto Setup button to completely eliminate residual noise. Contrast: Opens the Contrast adjustment pane.... 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. Then use the Phase slider to use the Pitch slider to the manufacturer's recommended settings. Resolution: Opens the Resolution adjustment ...
HP Display Assistant User Guide
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... adjustment pane. NOTE: Once the adjustment process is not available if you can save the preset. For more information, refer to the Presets on the monitor graphic to save the settings as a preset. Click the control buttons on page 10 section. Click the Reset button then select a white point value (sRGB... 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.
... adjustment pane. NOTE: Once the adjustment process is not available if you can save the preset. For more information, refer to the Presets on the monitor graphic to save the settings as a preset. Click the control buttons on page 10 section. Click the Reset button then select a white point value (sRGB... 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.
HP Display Assistant User Guide
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... checks for the latest available version (requires an Internet connection to work). ❑ About: Displays the HP Display Assistant product version and copyright information. ❑ Exit: Closes HP Display Assistant and turns off background color calibration. ● Run at 100% is not available will have.... The Check Update button requires an Internet connection to 10 languages. Version: Opens the Version pane, which provides manufacturing data for the monitor. Options Tab 9 Input: Opens the Input pane for selecting either Analog In (analog VGA mode) or Digital In (digital mode) ...
... checks for the latest available version (requires an Internet connection to work). ❑ About: Displays the HP Display Assistant product version and copyright information. ❑ Exit: Closes HP Display Assistant and turns off background color calibration. ● Run at 100% is not available will have.... The Check Update button requires an Internet connection to 10 languages. Version: Opens the Version pane, which provides manufacturing data for the monitor. Options Tab 9 Input: Opens the Input pane for selecting either Analog In (analog VGA mode) or Digital In (digital mode) ...
HP Display Assistant User Guide
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... or set to automatically load each time the computer is restarted. Loading this preset will reset the display to restore the image if the monitor is already configured. A preset is a file that is poorly adjusted. You can be saved for managing presets. The Factory Default Preset ... to a user-defined file. Presets can be loaded at any combination of adjustments made with HP Display Assistant. You can create multiple presets that can load the factory default preset to restore the monitor to the manufacturer recommended settings or select a customized preset that you to save all...
... or set to automatically load each time the computer is restarted. Loading this preset will reset the display to restore the image if the monitor is already configured. A preset is a file that is poorly adjusted. You can be saved for managing presets. The Factory Default Preset ... to a user-defined file. Presets can be loaded at any combination of adjustments made with HP Display Assistant. You can create multiple presets that can load the factory default preset to restore the monitor to the manufacturer recommended settings or select a customized preset that you to save all...
HP Display Assistant User Guide
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... Management provides the IT Manager the necessary components to remotely view and control the monitor. A plug-in feature, click on the desired button on the left side of HP Display Assistant installed on an HP Display Assistant-compatible system. To use a plug-in provides additional functionality beyond the... standard OSD replacement functions associated with HP Display Assistant. To verify that Asset Management is installed correctly on the client, click the Asset Management button and verify...
... Management provides the IT Manager the necessary components to remotely view and control the monitor. A plug-in feature, click on the desired button on the left side of HP Display Assistant installed on an HP Display Assistant-compatible system. To use a plug-in provides additional functionality beyond the... standard OSD replacement functions associated with HP Display Assistant. To verify that Asset Management is installed correctly on the client, click the Asset Management button and verify...
HP Display Assistant User Guide
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Once the process is removed. Using HP Display Assistant Color Calibration The color calibration will remove blue tint from Web sites and specifies a color matching technique to provide consistent monitor and output device color. Ensure that you click the Show Me button to run the color calibration ...the color ring. Look at the distance and viewing angle as you will disable color calibration. Click the Color Calibration button on your LCD. HP Display Assistant color calibration is used to "dial in the Plug-ins tab and check the Enable color calibration box. For example, ...
Once the process is removed. Using HP Display Assistant Color Calibration The color calibration will remove blue tint from Web sites and specifies a color matching technique to provide consistent monitor and output device color. Ensure that you click the Show Me button to run the color calibration ...the color ring. Look at the distance and viewing angle as you will disable color calibration. Click the Color Calibration button on your LCD. HP Display Assistant color calibration is used to "dial in the Plug-ins tab and check the Enable color calibration box. For example, ...
HP Display Assistant User Guide
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... Mode The following actions must be removed. ● The display is registered on select models. NOTE: HP strongly recommends that you have access to a different computer. Dual-monitor use is removed from being stolen, but hinders the operation of the display once it through e-mail. ... retrieve it is not supported. Theft Deterrence NOTE: The Theft Deterrence feature is the number of minutes allowed for normal operation of the monitor after a theft condition occurs and before displaying the theft warning message. 5. Click the Accept button. If you lose, misplace, or ...
... Mode The following actions must be removed. ● The display is registered on select models. NOTE: HP strongly recommends that you have access to a different computer. Dual-monitor use is removed from being stolen, but hinders the operation of the display once it through e-mail. ... retrieve it is not supported. Theft Deterrence NOTE: The Theft Deterrence feature is the number of minutes allowed for normal operation of the monitor after a theft condition occurs and before displaying the theft warning message. 5. Click the Accept button. If you lose, misplace, or ...
HP Display Assistant User Guide
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... time and hold the buttons down for "Setting Up Theft Deterrence." NOTE: If Theft Deterrence is enabled and you want to move your monitor to a different computer, you must go through the process described above for ten seconds. Overriding Theft Deterrence Mode To override Theft Deterrence, ...press the + and - buttons on power to completely avoid triggering a theft condition or install HP Display Assistant on the new computer and enter your PIN number. Theft Deterrence 17 This effectively cancels your PIN when prompted the first time ...
... time and hold the buttons down for "Setting Up Theft Deterrence." NOTE: If Theft Deterrence is enabled and you want to move your monitor to a different computer, you must go through the process described above for ten seconds. Overriding Theft Deterrence Mode To override Theft Deterrence, ...press the + and - buttons on power to completely avoid triggering a theft condition or install HP Display Assistant on the new computer and enter your PIN number. Theft Deterrence 17 This effectively cancels your PIN when prompted the first time ...