Understanding pixel defects in TFT flat panel monitors
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... to its molecules-similar to effectively act as any color and any brightness, and the combination of LCD. Before long, the technology was being applied to everything from the rear, and so create the image... subpixels) lets each pixel. Color filters are switched, in computer displays, this type of all HP LCD monitors as well as an ordered arrangement of the glass panels, with such a simple, passive-matrix drive system. 3...used in order across the material. This limits the contrast, resolution, and the response time that first pixel starts to switch back to computer...
... to its molecules-similar to effectively act as any color and any brightness, and the combination of LCD. Before long, the technology was being applied to everything from the rear, and so create the image... subpixels) lets each pixel. Color filters are switched, in computer displays, this type of all HP LCD monitors as well as an ordered arrangement of the glass panels, with such a simple, passive-matrix drive system. 3...used in order across the material. This limits the contrast, resolution, and the response time that first pixel starts to switch back to computer...
Understanding pixel defects in TFT flat panel monitors
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...thin-film transistor (TFT) technology allowed transistors to be placed at each picture element or sub-pixel. with LCD technology, and permits the manufacture of largesize, high-resolution displays which rival any one of the millions of one transistor to be created at each subpixel on handheld...defects Active-matrix TFT-LCDs require at least one percent (0.000014%). These can switch very quickly, and then hold the state of the sub-pixel while the panel drivers take care of the other problems encountered during manufacturing of today's high-resolution WUXGA displays. The advent...
...thin-film transistor (TFT) technology allowed transistors to be placed at each picture element or sub-pixel. with LCD technology, and permits the manufacture of largesize, high-resolution displays which rival any one of the millions of one transistor to be created at each subpixel on handheld...defects Active-matrix TFT-LCDs require at least one percent (0.000014%). These can switch very quickly, and then hold the state of the sub-pixel while the panel drivers take care of the other problems encountered during manufacturing of today's high-resolution WUXGA displays. The advent...
Understanding pixel defects in TFT flat panel monitors
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...may be visible only if you are inevitable, all three sub-pixels defective), HP customers are not likely to encounter this situation. Historically, HP has maintained stringent manufacturing specifications for HP monitors manufactured before May 2009: Bright sub-pixel defects: Dark sub-pixel defects: Total... resulting light or dark pixel. typical museum lighting 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 a distance of 300 to 500 lux (average...
...may be visible only if you are inevitable, all three sub-pixels defective), HP customers are not likely to encounter this situation. Historically, HP has maintained stringent manufacturing specifications for HP monitors manufactured before May 2009: Bright sub-pixel defects: Dark sub-pixel defects: Total... resulting light or dark pixel. typical museum lighting 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 a distance of 300 to 500 lux (average...
HP LP2275w and LP2475w LCD Monitors User Guide
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...Troubleshooting Solving Common Problems ...35 Using the Worldwide Web ...37 Preparing to Call Technical Support 37 Appendix B Technical Specifications HP LP2275w Model ...38 HP LP2475w Model ...39 Recognizing Preset Display Resolutions 41 HP LP2275w Model ...41 HP LP2475w Model ...41 Entering User Modes ...42 Energy Saver Feature ...43 Appendix C Agency Regulatory Notices Federal Communications Commission ... ...47 Disposal of Waste Equipment 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
...Troubleshooting Solving Common Problems ...35 Using the Worldwide Web ...37 Preparing to Call Technical Support 37 Appendix B Technical Specifications HP LP2275w Model ...38 HP LP2475w Model ...39 Recognizing Preset Display Resolutions 41 HP LP2275w Model ...41 HP LP2475w Model ...41 Entering User Modes ...42 Energy Saver Feature ...43 Appendix C Agency Regulatory Notices Federal Communications Commission ... ...47 Disposal of Waste Equipment 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 LP2275w and LP2475w LCD Monitors User Guide
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...22-inch) diagonal viewable area display with one upstream (connects to the computer) and four downstream (connects to USB devices) ports ● USB cable included to connect the monitor's USB hub to the USB connector on the computer ● Accessory rail on monitor to accept optional mounted devices, such as an HP...one DVI to DVI-D signal cable included ● One DisplayPort signal cable included ● USB 2.0 hub with 1680 × 1050 resolution, plus full- 1 Product Features HP LP2275w Model The LCD (liquid crystal display) monitor has an active matrix, thin-film transistor (TFT).
...22-inch) diagonal viewable area display with one upstream (connects to the computer) and four downstream (connects to USB devices) ports ● USB cable included to connect the monitor's USB hub to the USB connector on the computer ● Accessory rail on monitor to accept optional mounted devices, such as an HP...one DVI to DVI-D signal cable included ● One DisplayPort signal cable included ● USB 2.0 hub with 1680 × 1050 resolution, plus full- 1 Product Features HP LP2275w Model The LCD (liquid crystal display) monitor has an active matrix, thin-film transistor (TFT).
HP LP2275w and LP2475w LCD Monitors User Guide
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...to USB devices) ports ● USB cable included to connect the monitor's USB hub to the USB connector on the computer ● Accessory rail on monitor to accept optional mounted devices, such as an HP speaker bar ● Plug and play capability if supported by the ... viewable area display with the following regulated specifications: ◦ European Union CE Directives ◦ Swedish MPR II 1990 HP LP2475w Model The LCD (liquid crystal display) monitor has an active matrix, thin-film transistor (TFT). ● AssetControl ● Compliant with 1920 × 1200 resolution, plus full-
...to USB devices) ports ● USB cable included to connect the monitor's USB hub to the USB connector on the computer ● Accessory rail on monitor to accept optional mounted devices, such as an HP speaker bar ● Plug and play capability if supported by the ... viewable area display with the following regulated specifications: ◦ European Union CE Directives ◦ Swedish MPR II 1990 HP LP2475w Model The LCD (liquid crystal display) monitor has an active matrix, thin-film transistor (TFT). ● AssetControl ● Compliant with 1920 × 1200 resolution, plus full-
HP LP2275w and LP2475w LCD Monitors User Guide
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Insert the CD in the event of .INF and .ICM files from the HP monitors support Web site: 1. The CD menu is displayed. 2. Select Install Monitor Driver Software. 4. Follow the links for the monitor to http://www.hp.com/support and select the country region. 2. Download the software by following the instructions. ... and .ICM files from the CD in the computer CD-ROM drive. Ensure that you need to update, you determine that the proper resolution and refresh rates appear in the Windows Display control panel. Installing from the CD To install the .INF and .ICM files on the computer...
Insert the CD in the event of .INF and .ICM files from the HP monitors support Web site: 1. The CD menu is displayed. 2. Select Install Monitor Driver Software. 4. Follow the links for the monitor to http://www.hp.com/support and select the country region. 2. Download the software by following the instructions. ... and .ICM files from the CD in the computer CD-ROM drive. Ensure that you need to update, you determine that the proper resolution and refresh rates appear in the Windows Display control panel. Installing from the CD To install the .INF and .ICM files on the computer...
HP LP2275w and LP2475w LCD Monitors User Guide
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.... Turns front panel Power LED on . Provides the timer adjustment menu options: ● Set Current Time-sets the current time in sleep mode Adjusting the Monitor Settings 27 Select: ● On ● Off The factory default is On. Restores power to : ● On ● Off The factory default is ... to : ● Top ● Middle ● Bottom ● Off The factory default is powered on or off. Enables the power saving feature. Displays the resolution, refresh rate and frequency information on the screen each time the monitor is On or Off, depending on the model.
.... Turns front panel Power LED on . Provides the timer adjustment menu options: ● Set Current Time-sets the current time in sleep mode Adjusting the Monitor Settings 27 Select: ● On ● Off The factory default is On. Restores power to : ● On ● Off The factory default is ... to : ● Top ● Middle ● Bottom ● Off The factory default is powered on or off. Enables the power saving feature. Displays the resolution, refresh rate and frequency information on the screen each time the monitor is On or Off, depending on the model.
HP LP2275w and LP2475w LCD Monitors User Guide
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... the firmware version of backlight operation. Backlight Hours Reports the total hours of the monitor. Exits the OSD menu screen. Picture In Picture-secondary window is needed if contacting HP technical support. Returns all OSD menu settings and DDC/CI controls to : ●...Small, Medium, and Large. Selects the size of secondary window. Selects and displays important information about the monitor. Recommended Settings Provides the recommended resolution mode and refresh rate for the PIP/POP window. Picture Outside Picture-secondary window is removed or enters ...
... the firmware version of backlight operation. Backlight Hours Reports the total hours of the monitor. Exits the OSD menu screen. Picture In Picture-secondary window is needed if contacting HP technical support. Returns all OSD menu settings and DDC/CI controls to : ●...Small, Medium, and Large. Selects the size of secondary window. Selects and displays important information about the monitor. Recommended Settings Provides the recommended resolution mode and refresh rate for the PIP/POP window. Picture Outside Picture-secondary window is removed or enters ...
HP LP2275w and LP2475w LCD Monitors User Guide
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... Special messages will appear on the monitor screen when identifying the following monitor conditions: ● Input Signal Out of Range-Change resolution setting to 1680 × 1050 - 60Hz-Indicates the monitor does not support the input signal because the resolution and/or refresh rate are set higher than the monitor supports (LP2275w Model). ● Input Signal Out...
... Special messages will appear on the monitor screen when identifying the following monitor conditions: ● Input Signal Out of Range-Change resolution setting to 1680 × 1050 - 60Hz-Indicates the monitor does not support the input signal because the resolution and/or refresh rate are set higher than the monitor supports (LP2275w Model). ● Input Signal Out...
HP LP2275w and LP2475w LCD Monitors User Guide
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...If this does not correct the image, press the Menu button to 1680 × 1050 @ 60Hz (HP LP2275w Model) or Input Signal Out of the image. Position may need adjustment. Change resolution setting to open the OSD Menu, and adjust the brightness and contrast scales as needed. Change... cable. Input Signal Out of each problem, and the recommended solutions. Screen blanking is disconnected. Change the settings to Setting Up the Monitor on screen. Image is not centered Check Video Cable is blank. Problem Possible Cause Solution Screen is displayed on page 6 for 10...
...If this does not correct the image, press the Menu button to 1680 × 1050 @ 60Hz (HP LP2275w Model) or Input Signal Out of the image. Position may need adjustment. Change resolution setting to open the OSD Menu, and adjust the brightness and contrast scales as needed. Change... cable. Input Signal Out of each problem, and the recommended solutions. Screen blanking is disconnected. Change the settings to Setting Up the Monitor on screen. Image is not centered Check Video Cable is blank. Problem Possible Cause Solution Screen is displayed on page 6 for 10...
HP LP2275w and LP2475w LCD Monitors User Guide
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...HP LP2275w Specifications Display Type Viewable Image Size Tilt Adjustment Swivel Adjustment Height Adjustment Pivot Maximum Weight (Unpacked) Dimensions (include base) Height (maximum) Depth Width Maximum Graphic Resolution Optimum Graphic Resolution Text Mode Dot Pitch Horizontal Frequency Vertical Refresh Rate Environmental Requirements Temperature Operating Temperature Storage Temperature 55.9 cm wide screen TFT LCD... 30 to 93 kHz 48 to 85 Hz 5 to 35° C -20 to 60° C 22 inches wide screen 22-inch diagonal 3.94-inch range 17.9 lbs. 18.8 inches 10.0 inches 19.9 inches 41 to 95°...
...HP LP2275w Specifications Display Type Viewable Image Size Tilt Adjustment Swivel Adjustment Height Adjustment Pivot Maximum Weight (Unpacked) Dimensions (include base) Height (maximum) Depth Width Maximum Graphic Resolution Optimum Graphic Resolution Text Mode Dot Pitch Horizontal Frequency Vertical Refresh Rate Environmental Requirements Temperature Operating Temperature Storage Temperature 55.9 cm wide screen TFT LCD... 30 to 93 kHz 48 to 85 Hz 5 to 35° C -20 to 60° C 22 inches wide screen 22-inch diagonal 3.94-inch range 17.9 lbs. 18.8 inches 10.0 inches 19.9 inches 41 to 95°...
HP LP2275w and LP2475w LCD Monitors User Guide
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Table B-1 HP LP2275w Specifications (continued) Relative Humidity Power Source Altitude: Operating Storage Power Consumption (maximum) Input Terminal 20 to 80% 90 - 265 VAC, 45/63 Hz 0 to 3657.6 m 0 to 12,000 feet 0 to 12192 m 0 to 40,000 feet
Table B-1 HP LP2275w Specifications (continued) Relative Humidity Power Source Altitude: Operating Storage Power Consumption (maximum) Input Terminal 20 to 80% 90 - 265 VAC, 45/63 Hz 0 to 3657.6 m 0 to 12,000 feet 0 to 12192 m 0 to 40,000 feet
HP LP2275w and LP2475w LCD Monitors User Guide
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This monitor automatically recognizes these preset modes and they will appear properly sized and centered on the screen. Recognizing Preset Display Resolutions The display resolutions listed below are the most commonly used modes and are set as factory defaults. HP LP2275w Model Table B-3 HP LP2275w Factory Preset Modes Preset Pixel Format Horz Freq (kHz) 1 640... 75.00 74.55 60.00 75.03 75.06 65.96 60.00 60.02 75.02 59.89 60.00 60.00 HP LP2475w Model Table B-4 HP LP2475w Factory Preset Modes Preset Pixel Format Horz Freq (kHz) 1 640 × 480 31.47 2 640 × 480 37.50 ...
This monitor automatically recognizes these preset modes and they will appear properly sized and centered on the screen. Recognizing Preset Display Resolutions The display resolutions listed below are the most commonly used modes and are set as factory defaults. HP LP2275w Model Table B-3 HP LP2275w Factory Preset Modes Preset Pixel Format Horz Freq (kHz) 1 640... 75.00 74.55 60.00 75.03 75.06 65.96 60.00 60.02 75.02 59.89 60.00 60.00 HP LP2475w Model Table B-4 HP LP2475w Factory Preset Modes Preset Pixel Format Horz Freq (kHz) 1 640 × 480 31.47 2 640 × 480 37.50 ...
HP LP2275w and LP2475w LCD Monitors User Guide
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...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 adjust guidelines as small bright or dark spots. The first is always off (a dark spot on a specific background. To locate defective pixels, the monitor... visible of approximately 50 cm (20 in). HP expects that appear as improvements are caused by all vendors and is not specific to all LCD displays used in normal operating mode at a supported resolution and refresh rate, from a distance of the...
...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 adjust guidelines as small bright or dark spots. The first is always off (a dark spot on a specific background. To locate defective pixels, the monitor... visible of approximately 50 cm (20 in). HP expects that appear as improvements are caused by all vendors and is not specific to all LCD displays used in normal operating mode at a supported resolution and refresh rate, from a distance of the...