NEC LCD2490W2-BK-SV - MultiSync - 24" LCD Monitor User Manual Download Page 1

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Version

1.1.04

User’s Guide

Summary of Contents for LCD2490W2-BK-SV - MultiSync - 24" LCD Monitor

Page 1: ...Version 1 1 04 User s Guide ...

Page 2: ...corporated in the United States and or other countries Apple Macintosh ColorSync Mac and the Mac logo are trademarks of Apple Computer Inc registered in the U S and other countries Microsoft Excel and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Copyright 2003 10 NEC Display Solutions Ltd The content of this manual is f...

Page 3: ...ICULAR PURPOSE SOME STATES DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES OR THE LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE EXCLUSIONS OR LIMITATIONS MAY NOT APPLY TO YOU This Product is warranted in accordance with the terms of this limited warranty Consumers are cautioned that Product performance is affected by system configuration software the ap...

Page 4: ...formation window Summary tab 23 Information window Color Gamut tab 25 Information window Curves tab 26 Information window Color Tracking tab 27 Information window DICOM Conformance tab 28 Colorimeter window 30 Ambient Light Measurement window 31 Monitor Settings window 32 Menus 33 File menu 33 Edit menu 33 Tools menu 33 Help menu 33 Introduction to display monitor calibration 34 3 Calibration Over...

Page 5: ...uestions 41 Calibration 41 7 Troubleshooting 43 Installation and Setup 43 Using SpectraView with NaViSet Administrator 45 8 NaViSet Administrator 45 9 Test Pattern Guide 46 10 MultiSync PA Series Information 47 Glossary 48 ...

Page 6: ... the SpectraView software is running Always allow the display to warm up for at least 30 minutes before calibrating Do not adjust the monitor color brightness or contrast controls once it has been calibrated otherwise the color calibration of the monitor may become invalid Mac OS only Do not use the ColorSync control panel to switch between different display monitor calibrations by selecting diffe...

Page 7: ...monitor LCD2490WUXi 24 LCD monitor LCD2490WUXi2 24 LCD monitor LCD2690WUXi 26 wide color gamut LCD monitor LCD2690WUXi2 26 wide color gamut LCD monitor LCD3090WQXi 30 wide color gamut LCD monitor LCD4020 40 LCD monitor LCD4620 46 LCD monitor LCD5220 52 LCD monitor LCD6520 65 LCD monitor M40 M40B and M40 2 40 LCD monitors M46 M46B and M46 2 46 LCD monitors X461UN 46 LCD monitor X461HB 46 LCD monito...

Page 8: ...Color Depth At least 24 bit color Millions of colors At least 24 bit color Video Resolution Displays native resolution highly recommended 1280x1024 1600x1200 1680x1050 1920x1080 1920x1200 2560x1440 or 2560x1600 depending on monitor Displays native resolution highly recommended 1280x1024 1600x1200 1680x1050 1920x1080 1920x1200 2560x1440 or 2560x1600 depending on monitor Supported Color Sensors Gret...

Page 9: ...play monitor supported by SpectraView II features three internal 10 12 or 14 bit LUTs depending on the model These tables allow very precise adjustments to be made to the display s Tone Response Curve without reducing the number of displayable colors or introducing color banding artifacts Multiple Calibration Sets Different display monitor calibrations can be instantly loaded allowing quick and ea...

Page 10: ...y accurate ICC ColorSync color profiles are generated and automatically registered with the Color Management System These profiles use the Bradford Chromaticity Adaptation matrix Colorimeter function The software features a Colorimeter function which allows direct measurements to be taken by the color sensor and the results displayed in a variety of different formats Ambient Light Measurement func...

Page 11: ...ious calibrations can be loaded and viewed The display settings and ICC ColorSync profile for the display will be set automatically Display listbox Selects which display to calibrate if more than one display is present Targets listbox Selects an existing Target setting Targets that have been calibrated have green check mark Calibrate Calibrates the currently selected display to the currently selec...

Page 12: ... display is next due for recalibration or the number of days past when it was last due for recalibration This is based on the date of last calibration and the Recalibration Reminder Period in the Preferences dialog If the display is not currently in a calibrated state the Calibration On checkbox will be unchecked If the monitor OSD controls are locked using the Lock OSD Controls option in the Pref...

Page 13: ...d to None Auto Configure Attempts to automatically detect and configure the display monitors to the display layout on the Windows desktop In most cases this will correctly configure the correct relationship but in some cases it may be necessary to manually configure Test LUT Tests that the video graphics adapter card LUT Look Up Table can be correctly set Clicking this button with flash the screen...

Page 14: ...play s native characteristic white point This is useful when the maximum possible luminance is desired but the white point is not critical A custom white point can be specified by clicking the Edit button to open up the Custom Color Temperature dialog Gamma Curve Gamma Curve selects the desired tone response curve of the calibrated display Options are Monitor Native Gamma No correction is applied ...

Page 15: ...ng to exactly match two or more displays since there may be a difference between what Intensity each display can achieve Specific Level calibrates the display s Intensity to a specified target value If the display can not achieve the specified value it will be calibrated to the closest possible Intensity and a message will be displayed after the calibration has completed Note If you are unsure abo...

Page 16: ... more perceptually uniform than a simple gamma value curve NTSC Video A curve based on the SMPTE 170M specification for NTSC that includes the offset transition and slope components SMPTE 240M A curve based on the SMPTE 240M specification for 1125 line HD video that includes the offset transition and slope components Custom curves can be created and imported into SpectraView by creating a text fil...

Page 17: ...ed using the calibration sensor and automatically entered in the CIE xy chromaticity coordinate fields by clicking the Measure button This is useful for cloning the white point of another monitor The color sensor can be placed over the white circle on the right of the dialog in order to take a measurement of the white point by clicking the Measure button The circle can also be used to visually com...

Page 18: ...pplication and launch it again Model and Serial shows the model and serial number of the currently selected calibration sensor device Average low light measurements will average several color sensor measurements to improve the accuracy of low luminance measurements below 10 cd m Selecting this option will increase the monitor calibration time The Preferences dialog is accessed from the Edit menu ÿ...

Page 19: ...he expense of grayscale color tracking near black Best grayscale color tracking will generate the best grayscale color tracking in the black areas at the expense of a slightly reduced contrast ratio This option will not be used if a calibration Target with a Contrast Ratio of other than Default is used Extended luminance stabilization time increases the waiting time for the display to stabilize wh...

Page 20: ...e automatically given a name and description This is the default setting as it is not normally necessary to manually name the profile file Prompt for file name and description a prompt will appear and the file name and description can be entered manually Storage Location Mac OS only specifies where the generated ICC ColorSync profiles are stored Options are Per User of this computer the profile is...

Page 21: ...rate than those of some color sensors when measuring wide gamut displays such as the P221W LCD2180WG LED LCD2690WUXi LCD2690WUXi2 and LCD3090WQXi 21 SPECTRAVIEW II USER S GUIDE Luminance Units selects the units that luminance values are displayed in Options are Candelas cd m Foot Lamberts fL Automatically load settings on Target change automatically loads the most recent Monitor Calibration Settin...

Page 22: ... not be used for Targets with Maximum Possible Intensity selected or if the Target Intensity falls outside the range that the Auto Luminance circuit is capable of controlling This feature is only available on the following models LCD2490WUXi LCD2490WUXi2 LCD2690WUXi LCD2690WUXi2 and LCD3090WQXi The MultiSync PA Series of displays automatically always use Auto Luminance to maintain the stability of...

Page 23: ...d image editing applications by right clicking and selecting Copy This is useful for sharing and documenting various results Information window Summary tab White Point The Target values are the currently selected Target s White Point The Calibrated values show the actual measured White Point after the display has been calibrated The Delta E value is the calculated color difference between the Targ...

Page 24: ...mma value of the Target Gamma Curve Calibration Steps shows the number of calibration steps used to measure the grayscale when the calibration was performed ICC Profile File Name shows the name of the ICC ColorSync profile if one was generated after the display was calibrated Description shows the description tag text of the ICC ColorSync profile if one was generated after the display was calibrat...

Page 25: ...eference color space will overlay the color gamut onto the display s Colorspace CIE xy shows the gamut projected in CIE xy colorspace This is probably more familiar to most users however it does not allow color differences to be easily judged because this projection overemphasizes differences in green colors and underemphasizes differences in blue colors CIE u v shows the gamut projected in CIE u ...

Page 26: ...isplay These curves are generated from measurements taken while generating an ICC ColorSync monitor profile of the display If no ICC ColorSync profile was generated after the monitor was calibrated then this checkbox will be disabled Uncalibrated illustrates the actual measured tonal response curves of the uncalibrated display without any corrections applied to the Look Up Tables These curves are ...

Page 27: ...ements taken while generating an ICC ColorSync monitor profile of the display The horizontal axis shows the Delta E values for each measured point on the grayscale The vertical axis shows the luminance for each of the measured points on the grayscale Note that since the Delta E values are calculated based on the currently selected Target If a Target using Intensity Specific Level is being used and...

Page 28: ...eived luminance In DICOM terminology a change in luminance that is just perceptible is considered to be 1 JND Just Noticeable Difference So ideally each step in Digital Driving Level should result in an equal change in Just Noticeable Difference value The JND values are calculated using a complex formula from two measured luminance values The display calibration results can be viewed in two differ...

Page 29: ...rve is calculated based on the measured Intensity white luminance and black level values Show 10 Limits shows two lines representing 10 error deviations from the Barten Model curve Medical displays used for Primary Class image viewing should be within the 10 deviation curves Show 20 Limits shows two lines representing 20 error deviations from the Barten Model curve Medical displays used for Second...

Page 30: ...anslated into each of the respective color spaces These color spaces are device independent color spaces which means that they are not relative to any specific device as opposed to dependent color spaces such as RGB which is relative to the device that is displaying the color The Color Temp field shows the corresponding correlated black body radiator temperature of the measurement in Kelvin The Δu...

Page 31: ...Munki Datacolor Spyder3 These measurements are useful in determining the optimal viewing conditions for the area surrounding the display monitor Ideally the ambient light level and color temperature should not influence the viewing of images on the display screen Follow the instructions on screen for configuring the color sensor for Ambient Light measurement mode Measurements are taken every few s...

Page 32: ...ess can be reduced as necessary in dim environments if the LED is distracting The ColorComp control adjusts the screen uniformity correction applied to the display in order to improve the screen luminance and color uniformity This compensation is done at the expense of some screen brightness A higher level of correction will give a more uniform screen but the maximum Intensity brightness that can ...

Page 33: ...iguration dialog This is the same as clicking the Display Configure button Target opens the Edit Calibration Target dialog Tools menu Information Window opens the Information window Colorimeter Window opens the Colorimeter window Test Pattern displays a variety of test patterns on the screen that can be used to evaluate the status of the monitor calibration and performance Click the left and right...

Page 34: ...should be calibrated to a known state The Color Management System being used must also know the current state of the monitor so that it can determine how to accurately display images on that particular monitor Once the display has been calibrated and the Color Management System knows the color characteristics via the use of the ICC ColorSync monitor profile the display can be used to preview or so...

Page 35: ...y Preset Note LCD2690WUXi2 will calibrate the white point to D65 instead of using the factory preset 2 2 Factory Preset DICOM Blue Medical Imaging using blue base film 0 265 0 320 DICOM Curve DICOM White Medical Imaging 0 292 0 321 DICOM Curve Digital Cinema Images and video intended for cinematic projection 0 314 0 351 2 6 Note When using the sRGB Emulation target The Factory Preset white point i...

Page 36: ...cs Normally a standard Gamma value is required when working with images For example the sRGB standard color space target specifies a display Gamma value of 2 2 Since the Gamma value of the display may be different than the required Gamma value a correction needs to be applied so that the apparent display Gamma matches that of the required Target In SpectraView this correction is applied to the LUT...

Page 37: ...tio of the measured Intensity to the measured Black Level The Black Level is the luminance or brightness of black when displayed on the screen For LCD monitors the minimum or native Black Level is typically fixed in ratio to the Intensity value due to the display technology SpectraView allows the Contrast Ratio to be selected for applications that require a specific contrast ratio However the cali...

Page 38: ...ts can be selected in the main SpectraView II window from the Target listbox Selecting a Target will automatically configure the White Point Tone Response Curves Intensity and Black Level if applicable The choice of Target depends on the particular application and viewing conditions such as the ambient light level ModifyingTargets The parameters of Targets can be modified using the Edit Target but...

Page 39: ...thoutcalibratingthedisplaybyselectingGenerate ICC Profile from the File menu Non SpectraView displays can be profiled but not calibrated by SpectraView Validating the current Calibration The current state of the display monitor can be measured and compared to the currently selected Target in order to quickly determine if the current calibration is still accurate or if the display should be recalib...

Page 40: ...t is not necessary to perform any of the monitor settings in the Adobe Gamma Control Panel since all of the necessary monitor calibration and measurements will be done by SpectraView In Photoshop images are manipulated in what is known as an image color workspace This color workspace is independent of the display monitor color characteristics allowing images to be transferred between systems with ...

Page 41: ...oversaturated when the window is on the wide gamut display What is wrong Answer The color management in Safari and some other Mac applications will only apply color correction for the primary display the display with the menu bar When a window is moved to the secondary display the correct color correction for that display is not applied This causes the images to be oversaturated on the secondary d...

Page 42: ...will drift slightly for several minutes after it is adjusted Since the measured value used to calculate the final Delta E result is taken up to one or two minutes after the display was adjusted a higher Delta E value may be shown even though the calibration process achieved the specified Target values during the calibration process Selecting the Extended luminance stabilization time option in the ...

Page 43: ...ectraView to communicate with the display monitor For Windows systems verify that the video graphics adapter is supported by SpectraView by checking the Windows Graphics Chipset Compatibility Information See the README file included with the software for further information Install the latest video drivers for the video graphics adapter card Communications with the display monitor requires a speci...

Page 44: ...ing on the screen that has both full black and full white such as the Test Pattern in SpectraView 2 On the monitor s On Screen Display select and operate the AUTO CONTRAST control 3 Proceed with the calibration Problem ÿ Windows The ICC profile generated by SpectraView does not appear to be correctly installed and recognized in Windows Solution This problem may occur especially when using a multi ...

Page 45: ...dministrator Console application When using the Single Connection feature of NaViSet Administrator to administer a remote machine the SpectraView information will be shown in the monitor metadata report When using the Monitor Asset Report feature to poll and gather information about the display monitors on multiple remote machines the SpectraView information can be included in the Output Monitor A...

Page 46: ...tion at three luminance levels Sixteen luminance patches with pixel values varying from 8 to 248 for luminance response evaluation Each patch contains four small 10x10 pixel corner patches at 4 of pixel value difference from the background 4 in upper left and lower right 4 in lower left and upper right The small patches are used for visual assessment of luminance response Two patches of minimum an...

Page 47: ...ill be automatically named SpectraViewII The SpectraView II software can be used together with the MultiProfiler software When MultiProfiler is with SpectraView II the ICC ColorSync profile generated by SpectraView will always be activated by MultiProfiler when the Picture Mode calibrated by SpectraView II is selected For all other Picture Modes the ICC ColorSync profiles generated by MulitProfile...

Page 48: ...delas or Nits for sake of brevity CIE The Commission Internationale d Eclairage International Commission on Illumination An organization that sets many of the standards used in color and color measurement CIE Lab A color space that is relative to a reference white point The L value represents light ness a represents Red Green and b represents Yellow Blue Lab is almost perceptually uni form in that...

Page 49: ...ture of the illuminant For example D50 has a correlated color temperature of 5000K Delta E Δ E A measurement of how different two colors are to each other In SpectraView Delta E values are derived by calculating the distance between two colors in Lab color space using the CIE 94 formula A Delta E value of 1 indicates a just perceptual difference between two colors Delta uv Δ uv A measure of how di...

Page 50: ...e denoted by K Zero Kelvin 0K is equivalent to 273 Celsius Lab See CIE Lab LED Light Emitting Diode LCD Liquid Crystal Display Lightbox An enclosure with controlled lighting conditions used to evaluate proofs transpar encies and other printed materials Typically a lightbox is illuminated to approximate a standard illuminant such as D50 or D65 Luminance A measure of the brightness or intensity of l...

Page 51: ...y A standard for encoding video signals used mainly in France and Eastern Europe Soft Proof Previewing on a display monitor what an image will actually look like when print ed on a particular printer Subtractive Primaries Cyan magenta and yellow colors such as dyes or inks that subtract light reflecting off objects giving the appearance of color For example magenta ink subtracts green light When c...

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