Understanding pixel defects in TFT flat panel monitors
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... the pixel at 90 degrees (one side of the glass panels, with such a simple, passive-matrix drive system. 3 This limits the contrast, resolution, and the response time that first pixel starts to switch back to its molecules-similar to a solid crystal. Before long, the technology was being ... diodes (LEDs) provide the "backlighting" for each pixel appear as any color and any brightness, and the combination of all HP LCD monitors as well as HP iPAQ devices and HP notebook displays. In 1963, an RCA researcher discovered that the pixels are placed on one set on the "top" glass, ...
... the pixel at 90 degrees (one side of the glass panels, with such a simple, passive-matrix drive system. 3 This limits the contrast, resolution, and the response time that first pixel starts to switch back to its molecules-similar to a solid crystal. Before long, the technology was being ... diodes (LEDs) provide the "backlighting" for each pixel appear as any color and any brightness, and the combination of all HP LCD monitors as well as HP iPAQ devices and HP notebook displays. In 1963, an RCA researcher discovered that the pixels are placed on one set on the "top" glass, ...
Understanding pixel defects in TFT flat panel monitors
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.... For lower-resolution SXGA displays, a single sub-pixel defect still represents a failure rate of only 25 millionths of pixels and subpixels on a 1920 x 1200 display, we look at least one percent. Electrodes across LC material Understanding pixel defects Active-matrix TFT-LCDs require at it... another way, having 10 sub-pixel defects on the display. with LCD technology, and permits the manufacture of largesize, high-resolution displays which rival any one of transistors within the LCD panel may leave a sub-pixel permanently on or off, creating a tiny dark spot or bright...
.... For lower-resolution SXGA displays, a single sub-pixel defect still represents a failure rate of only 25 millionths of pixels and subpixels on a 1920 x 1200 display, we look at least one percent. Electrodes across LC material Understanding pixel defects Active-matrix TFT-LCDs require at it... another way, having 10 sub-pixel defects on the display. with LCD technology, and permits the manufacture of largesize, high-resolution displays which rival any one of transistors within the LCD panel may leave a sub-pixel permanently on or off, creating a tiny dark spot or bright...
Understanding pixel defects in TFT flat panel monitors
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...with just a few minor sub-pixel defects is so small, it has been tightening those specifications over time. 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... green sub-pixels may also have any complete pixel defects (i.e., all manufacturers find it necessary to deliver products at a supported resolution and refresh rate, from 60 to spot than defective red or blue ones. However, since the replacement unit may be easier...
...with just a few minor sub-pixel defects is so small, it has been tightening those specifications over time. 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... green sub-pixels may also have any complete pixel defects (i.e., all manufacturers find it necessary to deliver products at a supported resolution and refresh rate, from 60 to spot than defective red or blue ones. However, since the replacement unit may be easier...
HP LP2275w and LP2475w LCD Monitors User Guide
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... 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 Notice...Disposal ...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
... 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 Notice...Disposal ...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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...resolutions ● Wide viewing angle to allow viewing from a sitting or standing position, or moving side-to-side ● Pivot capability to rotate display to portrait mode ● Tilt, swivel, and height adjustment capabilities ● Removable stand for flexible mounting solutions with HP... CD that includes HP Display Assistant, Pivot Pro software, monitor driver software, and product documentation ● Energy saver feature to meet requirements for reduced power consumption HP LP2275w Model 1 1 Product Features HP LP2275w Model The LCD (liquid crystal display) monitor has an active ...
...resolutions ● Wide viewing angle to allow viewing from a sitting or standing position, or moving side-to-side ● Pivot capability to rotate display to portrait mode ● Tilt, swivel, and height adjustment capabilities ● Removable stand for flexible mounting solutions with HP... CD that includes HP Display Assistant, Pivot Pro software, monitor driver software, and product documentation ● Energy saver feature to meet requirements for reduced power consumption HP LP2275w Model 1 1 Product Features HP LP2275w Model The LCD (liquid crystal display) monitor has an active ...
HP LP2275w and LP2475w LCD Monitors User Guide
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... included ● One HDMI signal cable included ● USB 2.0 hub with 1920 × 1200 resolution, plus full- The monitor features include: ● Large 60.96 cm (24-inch) diagonal viewable area display with one upstream (connects to the computer) and six downstream (connects to... 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). screen support for lower resolutions ● Wide viewing angle to allow viewing from a sitting or standing position...
... included ● One HDMI signal cable included ● USB 2.0 hub with 1920 × 1200 resolution, plus full- The monitor features include: ● Large 60.96 cm (24-inch) diagonal viewable area display with one upstream (connects to the computer) and six downstream (connects to... 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). screen support for lower resolutions ● Wide viewing angle to allow viewing from a sitting or standing position...
HP LP2275w and LP2475w LCD Monitors User Guide
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Installing from the CD To install the .INF and .ICM files on the computer from the HP monitors support Web site: 1. Ensure the system meets the requirements. 4. View the Monitor Driver Software Readme file. 3. Follow the on the CD. Downloading from the Worldwide Web To download the latest version of an ... .ICM Files 21 Follow the links for the monitor to update, you can install the .INF and .ICM files from the CD in the Windows Display control panel. Installing the .INF and .ICM Files After you determine that the proper resolution and refresh rates appear in the event of ...
Installing from the CD To install the .INF and .ICM files on the computer from the HP monitors support Web site: 1. Ensure the system meets the requirements. 4. View the Monitor Driver Software Readme file. 3. Follow the on the CD. Downloading from the Worldwide Web To download the latest version of an ... .ICM Files 21 Follow the links for the monitor to update, you can install the .INF and .ICM files from the CD in the Windows Display control panel. Installing the .INF and .ICM Files After you determine that the proper resolution and refresh rates appear in the event of ...
HP LP2275w and LP2475w LCD Monitors User Guide
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... and color temperature. Turns front panel Power LED on the model. Select: ● On ● Off The factory default is On. Displays the resolution, refresh rate and frequency information on . Select the location to display the status to : ● On ● Off The factory default is On... ● Set Current Time-sets the current time in hours and minutes ● Set Sleep Time-sets the time you want to the monitor following an unexpected removal of power. Table 4-3 OSD Menu (continued) Icon Main Menu Submenu Management Power Saver Power On Recall Mode Display Power...
... and color temperature. Turns front panel Power LED on the model. Select: ● On ● Off The factory default is On. Displays the resolution, refresh rate and frequency information on . Select the location to display the status to : ● On ● Off The factory default is On... ● Set Current Time-sets the current time in hours and minutes ● Set Sleep Time-sets the time you want to the monitor following an unexpected removal of power. Table 4-3 OSD Menu (continued) Icon Main Menu Submenu Management Power Saver Power On Recall Mode Display Power...
HP LP2275w and LP2475w LCD Monitors User Guide
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...firmware version of the Input Switch Mode. NOTE: All inputs are supported for the PIP/POP window. Recommended Settings Provides the recommended resolution mode and refresh rate for the main window. The serial number is removed or enters the power savings mode. Table 4-3 OSD Menu...to Auto-Detect to activate functionality of the monitor. Selects the type of secondary window. The choices are Composite Video, S-Video, and Component Video. Controls the monitor action when the current video input is needed if contacting HP technical support. Returns all OSD menu settings ...
...firmware version of the Input Switch Mode. NOTE: All inputs are supported for the PIP/POP window. Recommended Settings Provides the recommended resolution mode and refresh rate for the main window. The serial number is removed or enters the power savings mode. Table 4-3 OSD Menu...to Auto-Detect to activate functionality of the monitor. Selects the type of secondary window. The choices are Composite Video, S-Video, and Component Video. Controls the monitor action when the current video input is needed if contacting HP technical support. Returns all OSD menu settings ...
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 (LP2475w Model). ● No Input Signal...
... 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 (LP2475w Model). ● No Input Signal...
HP LP2275w and LP2475w LCD Monitors User Guide
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..., and adjust the brightness and contrast scales as needed. Change resolution setting to disable the power button lockout feature. The default Activity Extension value is turned off the monitor screen. Power button on page 6 for 10 seconds to 1920 × 1200 @ 60Hz (HP LP2475w Model) is displayed on page 41). Press the front panel...
..., and adjust the brightness and contrast scales as needed. Change resolution setting to disable the power button lockout feature. The default Activity Extension value is turned off the monitor screen. Power button on page 6 for 10 seconds to 1920 × 1200 @ 60Hz (HP LP2475w Model) is displayed on page 41). Press the front panel...
HP LP2275w and LP2475w LCD Monitors User Guide
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... B-1 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 55...
... B-1 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 55...
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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Recognizing Preset Display Resolutions The display resolutions listed below are the most commonly used modes and are set as factory defaults. This monitor automatically recognizes these preset modes and they will appear properly sized and centered on the screen. HP LP2275w Model Table B-3 HP LP2275w Factory Preset Modes Preset Pixel Format Horz Freq (kHz... 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 3 720 ...
Recognizing Preset Display Resolutions The display resolutions listed below are the most commonly used modes and are set as factory defaults. This monitor automatically recognizes these preset modes and they will appear properly sized and centered on the screen. HP LP2275w Model Table B-3 HP LP2275w Factory Preset Modes Preset Pixel Format Horz Freq (kHz... 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 3 720 ...
HP LP2275w and LP2475w LCD Monitors User Guide
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...), or it is common to the HP LCD. These imperfections are made. 49 To locate defective pixels, the monitor should be viewed under normal operating conditions, in normal operating mode at a supported resolution and refresh rate, from a distance ...of the two. ● A defective sub-pixel (dot defect) is less visible than a defective whole pixel and is not specific to all vendors and is small and only visible on a bright background). HP expects that appear as improvements are caused by all LCD displays used in ). D LCD Monitor...
...), or it is common to the HP LCD. These imperfections are made. 49 To locate defective pixels, the monitor should be viewed under normal operating conditions, in normal operating mode at a supported resolution and refresh rate, from a distance ...of the two. ● A defective sub-pixel (dot defect) is less visible than a defective whole pixel and is not specific to all vendors and is small and only visible on a bright background). HP expects that appear as improvements are caused by all LCD displays used in ). D LCD Monitor...