lcd screen calibration made in china
Automate your calibration with the built-in SelfCalibration sensor that is housed within the monitor"s bottom bezel and swings up onto the screen only when calibrating. This sensor eliminates the need for a third-party calibration device and even operates in portrait mode.
The monitor can be correlated to the measurement results of an external calibration sensor. After correlating, the built-in sensor will automatically recalibrate to the settings. This is convenient if the monitor is used in a work environment with other monitors and one measurement device must be used as a standard for all calibration.
Fluctuations in brightness and chromaticity on different parts of the screen are a common trait of LCD monitors. To counteract this, the monitor incorporates EIZO’s patented digital uniformity equalizer (DUE) technology to ensure a Delta-E difference of 3 or less across the screen when the monitor leaves the factory. And now DUE also counterbalances the influences that a fluctuating ambient temperature may have on color temperature and brightness to ensure stable image display.
The bundled ColorNavigator software makes calibration both simple and quick. Just input target values for brightness, white point, and gamma. The built-in sensor directly utilizes the monitor"s look-up table and creates an ICC profile within minutes. You can always download the latest version of ColorNavigator for free here on eizo.com.
With ColorNavigator NX installed on workstations, an administrator can use ColorNavigator Network software to schedule self-calibration, set the color modes, activate key lock to prevent unintended changes to color settings (CG series), register or adjust asset management settings, and import/export monitor settings.
Adjust the screen to the most comfortable angle for you and reposition it to show your work to a colleague or client. The monitor comes with a versatile stand that offers height, tilt, and swivel adjustments as well as portrait mode display.
For dimly lit work environments like post production studios, the monitor comes with backlit control buttons and an on-screen button guide to indicate what each button is for.
Most shading hoods can only be used in landscape mode, but this monitor comes bundled with a unique hood that is designed for portrait mode as well. Now you can keep the glare off your screen no matter which mode you work in.
When viewing the screen from an angle in a dimly lit room, dark tones typically appear washed out due to the display characteristics of LCD backlights. The monitor has a high contrast ratio which allows the dark tones to retain their depth.
A safe area marker designates the area of the screen that will be displayed when the monitor is connected to a particular device. This allows you to check that subtitles and other text will be visible. This color of the marker is changeable to ensure it remains with any imagery.
The EIZO-developed ColorNavigator software makes calibration simple and produces predictable color results. ColorNavigator works with a wide range of measurement devices to directly utilize the Look-Up Table of ColorEdge monitors for accurate and reliable calibration in minutes.
A paper white measurement function offers better color matching between the image on the monitor and the image on the printouts. By measuring the white of the paper to be used for printing, ColorNavigator will automatically set the target values for brightness and white point accordingly. (This feature is not available for ColorEdge monitors with a built-in calibration sensor.)
For confirmation of calibration results or to achieve more accurate manual adjustments, a test pattern screen can be displayed. The test pattern screen shows a full grayscale ramp, as well as just the low tones (blacks), high tones (whites), gamma values, and the EIZO and ColorNavigator logo areas. Brightness, white point, and gamma can be adjusted manually with the results immediately reflected on the test pattern screen.
Test pattern screen divided into grayscale areas, whitescale areas, gamma areas, and EIZO / ColorNavigator logo areas. Adjustments of brightness, white point, and gamma made on the screen to the left are shown immediately on the test pattern screen.
With ColorNavigator you and prepare several profiles for different needs and switch between them as needed. You can also use past calibration results to easily adjust your monitor.
ColorNavigator emulates* the color characteristics of other media devices such as tablets, smart phones, notebook PCs, other LCD/CRT monitors and even portable gaming devices. With a spectrophotometer, ColorNavigator reads the emulated device"s color patches as they appear in a web browser and creates an ICC profile. By using this profile with a ColorEdge monitor, content creators see how their customers view color on their respective media devices.
After initial calibration, a monitor needs to be recalibrated at regular intervals to maintain color accuracy. ColorNavigator includes a recalibration reminder that will appear after a certain number of user-determined hours. When the monitor is first calibrated, the date and time are saved. After the time you set has elapsed, an LED on the front panel lights up, and a reminder message appears the next time ColorNavigator starts up.
To eliminate the individual differences in measured values among calibration devices, ColorNavigator conducts settings based on EIZO"s own standards that prioritize color management settings. In addition, when color matching with other ColorEdge monitors, ColorNavigator can give priority to matching between monitors and correct the calibration devices.
With ColorNavigator and a measurement device, you can set your light box"s* brightness to the desired value. ColorNavigator takes the resulting brightness level and sets it as the monitor"s target calibration value to ensure uniform brightness between your monitor and light box when color proofing.
To verify calibration results or check to see how much the monitor"s colors have varied since it was last calibrated, ColorNavigator measures the monitor"s color patches to determine the difference between the Delta-E value of the monitor"s profile and the actual displayed values of the monitor. ColorNavigator can also measure CMYK color patches* (GRACoL 2006 Coated #1 and FOGRA39) and output them as Adobe Photoshop or Acrobat files. The measurement results of both the monitor and profile for each color patch are indicated in either CIELAB or XYZ values, and the difference between them expressed in Delta-E. The Delta-E variation can be shown in a graph and compared with previous results.
With Color Navigator, the monitor can be correlated to the measurement results of an external calibration sensor. This is convenient if the monitor is used in a work environment with other ColorEdge monitors and one measurement device must be used as a standard for all calibrating.
3. AUTO-calibration: The lens transmittance meter has a real-time dynamic self-calibration function, which is automatically calibrated to 100% transmittance after power on.
4. LCD display: The lens transmittance tester adopts a large LCD screen, and there are 3 display interfaces in Chinese and English to choose from, for clear observation.
1. The instrument is self-testing and self-calibration when turned on. No test object can be placed in the test position, otherwise self-calibration cannot be completed.
As the window to your digital photography, your monitor is a tool you need to be able to trust. If your monitor color isn�t accurate, you won�t see true-to-life colors, highlight and shadow details, not to mention correct skin tones. And if you�re looking at an image that isn�t true, how can you edit it properly, or get your screen to match your prints? You can�t. SpyderX will solve all of that in minutes.
Calibrating your monitor is essential to get an accurate representation of the colours you want to output on a printer. Calibration is only possible with CRT monitors and some of the more expensive LCD monitors, such as the Eizo GC range and LaCie"s current 300 range of models. These monitors have a 10-bit or better Video Colour LookUp Table (LUT) which also makes them behave better with regards to colour representation.
While you may not always have the means to buy a monitor that you can calibrate - or you simply don"t want to throw out your still perfect performing 4-year old LCD, you can still profile the monitor, which enables you to at least use it for more or less accurate photo proofing with Photoshop. What if I told you there is an application out there that does more with the video card"s LUT than most packages do - even the very expensive ones? It is called basICColor display 4.1.1, it"s a German product, and it works wonders. The secret sauce? Software calibration. Not as good as hardware calibration, but better than no calibration at all.
basICColor display 4.x is a multi-monitor solution out-of-the-box. At startup, the software will detect when you have more than one monitor connected to your computer, and will automatically open as many windows as there are monitors. The main window is easy to use. It has a phased interface, meaning you only get to see what is relevant at each particular phase in the calibration/profiling process.
basICColor display 4.x is fast too. I was stunned by its speed, especially so as the application will go through a calibration round before profiling your display. It should therefore take at least twice as long as with other programs, but it"s actually faster than both MonacoProfiler and ProfileMaker Pro.
You can have the software calibrate or only profile your display. If software calibration causes problems with your video card, you can turn it off. I can"t report any problem with my ATI Radeon 9800 SE, but other cards might dislike display 4.x tampering with their Tone Response Curves. The software is aimed at professionals, and therefore can be set up by the operator entirely. However, beginners - or impatient people - can start calibrating using the "Express" button, which sets the application to manufacturer defaults and is the fastest way to get a profile quickly.
If you know what you"re doing, you can decide yourself what the software is supposed to calibrate / profile against. This is done by going through a column with pop-up menus at the left side of the window. For example, you can decide to calibrate to ISO 3664 and 12646 standards, or use one of the preset calibration settings such as "Office", "Photography", and "Prepress".
The profile can be a LUT-based profile or a less accurate matrix profile. When selecting to calibrate the hardware on a monitor that supports hardware calibration, you can sit back and look at what display 4.x does for you. The interaction between the software and the monitor will be totally automatic, and the calibration curves will be uploaded into the monitor"s lookup tables.
With software calibration, the values of the calibration are uploaded to the video card, and less influence can be exercised on how the monitor itself behaves. Nevertheless, the calibration round is pretty efficient. I"ll get to the results in a minute. What happens when the software calibrates, is that your black and white point are set, and your grey values are iteratively determined and the Tone Response Curve adjusted accordingly.
This by itself doesn"t tell me how the monitor performs. So, I used a few tricks I learned from the master himself, the now late Bruce Fraser. I created a grey gradient and visually checked the quality of the calibration/profile. The grey ramp should not have any discoloration. On the left monitor, this was the first time the ramp was indeed as neutral as Switzerland. The right monitor had slight coloration - but my feeling is that this is a bad monitor, period.
Then I tested the result visually with a black area shown full-screen and a black patch in the middle that I changed in value by using the Curves in Photoshop. This test shows how well the monitor has been calibrated. Most calibration results will start showing a difference between the black and the grey area in the middle when the Curves value has shifted upwards to +4 or even +5. With MonacoProfiler I managed to see a difference at +3. With basICColor display 4.x the difference started at +1, which is incredibly good.
Finally, you can edit your calibration curves in display 4.x, but as this feature rapidly results in your calibration messed up, I did not play with it.
If you"re serious about monitor calibration and profiling, basICColor display 4.x is an absolute must-have. I am thinking about photographers, prepress people and even graphic designers. This software is vastly superior to even the more expensive competitors, and it works with almost every colorimeter or spectrophotometer. It therefore deserves an Editor"s Choice.
Display calibration and profiling are used in combination to achieve consistent colour on your display. They can ensure that the colours you see on the screen accurately represent the colours within an image, and can communicate the colours you see or create in a way that they can be matched in subsequent processes such as viewing on a different display, a print or a projector. This page summarises methods of calibrating displays for different purposes.
Calibration and profiling are used in combination to achieve colour consistency. First the display is calibrated to the desired behaviour, then a profile is used to communicate colour between the display and other devices. Depending on the intended use of the display, there are a number of different approaches that can be used:
It is preferable to select a working space (or colour encoding) that is close to the native display colour gamut. This makes it possible for the calibration and working space to match. Any small difference between the target calibration and the actual display is then handled by the display profile. A listing of standard colour encodings is available in the ICC three component encoding registry.
Soft proof calibration is used in graphic arts, where the display is used to provide a reasonably accurate simulation of the appearance of an image when printed. The display should be capable of being calibrated to a D50 white point to match the photography and graphic arts viewing standards (ISO 3664), with a luminance of 160 candelas/m2. In practice, it often helps to adjust the calibrated white point of the display so that it matches the colour of the unprinted substrate.
In some cases it is desirable to profile a color display without changing its calibration state. One such example is the proposed dRGB/mRGB display calibration where the neutral response of the display is set to match the DICOM GSDF. This document provides one suggestion as to how calibration and profiling may be achieved independently, using open-source software to create a display profile.
Displays have different levels of controls which can be utilized in calibration. More or less all displays have some form of control over brightness, contrast and (often) colour balance, accessed through buttons on the display faceplate (known as the on-screen display or OSD control) or a software utility provided by the display vendor. Windows and Mac OS also provide control panels that enable some degree of control over brightness, contrast and colour balance prior to the data being sent to the display driver.
The display should be positioned in its operating environment. Glare on the screen should be minimised by locating the display so that room lights or sunlight do not fall directly on the screen. A monitor hood can be used to minimise incident light on the display.
The screen should be clean and allowed to warm up (around 15 minutes). The brightness should be set to a little over the target luminance, using the OSD or vendor control panel. Contrast should be set to give acceptable results - the factory default is often the best starting point. If the controls are available, also set the white point, black point and tone reproduction curve (or "gamma") to the target values.
All calibration methods require a measurement instrument and (in most cases) calibration software. Instruments and software available from ICC members can be seen in the profiling tools page.
The actual calibration procedure to follow will depend on the display calibration software and the capabilities of the display. The main steps are:Connect the measurement instrument and launch the calibration program.
Set the white point luminance and chromaticity to the desired values. E.g. for a Adobe RGB (1998) reference calibration, the luminance is 160 cd/m2 and the chromaticity is D65.
Once the above items have been set, the calibration program measures a series of colours on screen and calculates the transforms required to achieve the desired values. Depending on the capabilities of the display, a look-up table may be written to the display firmware and/or graphics card and operating system.
During the calibration process, the calibration software will have collected the measurements needed to make an ICC profile for the device. This profile (or a standard profile) is then saved in the profiles folder for the system and set as the System profile. The calibration software will normally perform these steps, but they can also be done manually, copying the profile into the appropriate location (c:\windows\system32\spool\drivers\color on a PC, /Users//Library/ColorSync/Profiles on a Mac (Mac users may need to set the folder to visible in a terminal window before being able to copy profiles into it) and using the colour management control panel (ColorSync panel on Mac OS) to set the profile as the current System profile or profile associated with the display device.
Since displays tend to drift over time, periodic calibration is needed to maintain colour performance. The frequency of recalibration depends on factors like the display technology and the driving luminance as well as the accuracy requirements, but approximately 6-month intervals are often sufficient.
If a standard working space has been selected as the calibration target, images with an embedded profile are converted to the working space and will display accurately on the screen (within the limits of the display gamut). Subsequently the working space profile is embedded into the image and this will ensure that the image can be correctly converted for display or viewing on other devices.
It should be noted that on some types displays, particularly tablets and other mobile devices, there is no operating system support for colour management and minimal user control over the display calibration other than the brightness setting. In this case calibration and colour management can only be performed at the level of the application.
The display viewing environment can affect both the physical image seen by the viewer and the colour appearance of that image. A specification of a working space, and a display calibration, are specific to a viewing environment. In some cases viewing conditions vary with time of day (e.g.
if the room has windows or variable lighting), which can lead to a loss of accuracy in the display calibration. Mobile displays are particularly affected by viewing conditions since they are used in a much larger range of conditions than other displays.
How much time, paper, and ink do you waste re-printing images because the color isn’t right? Before you blame your printer, consider your monitor. When you work on an un-calibrated and un-profiled monitor, you can’t trust the colors you see on-screen, making it hard to make good editing decisions.
Simulate on screen how colors will look in a desired output process (monitor-to-print match, also called soft proofing, requires availability of printer profiles)
Calibration adjusts (changes) the color properties of your display to certain parameters like white point, luminance, contrast, and gamma. The ICC profile describes, but does not change, how your monitor is displaying color. The ICC profile is essential for your applications to convert and display colors accurately. i1Profiler will guide you seamlessly through these two processes.
If you are using an external display with advanced color controls, make yourself familiar with the operation of the On-Screen-Display (OSD) menu, especially for adjusting brightness, contrast, and color temperature (RGB Gains). See your monitor’s user guide for more information. Ensure these settings:
Connect your device to your computer and launch i1Profiler. Make sure i1Pro 3 / i1Pro 3 PLUS device is selected in the bottom right in the main screen. Select the Basic User Mode on the right, then click the Display Profiling button on the left.
Automatic display control takes advantage of a feature that’s available on some displays, allowing the software to access the display’s internal calibration controls. Or, you can choose to adjust your brightness and contrast manually which is recommended.
A series of colors will be displayed and measured. You will not recognize it, but during the measurement procedure, a couple of things are happening. The calibration curves will be finalized and loaded on-the-fly into your computer’s graphic card. Additionally, colors will be displayed on the now calibrated display, and these measurements will later be used to build the ICC monitor profile.
If you are on Windows, ICC profiles will always be saved on System level. Click Create and Save Profile. The profile will automatically be set as the current profile in your Mac or Windows system. The calibration curves are part of the ICC profile and will automatically be loaded to the graphic card.
If you’re curious, click the middle Luts button (looks like a graph) to see which calibration adjustments i1 Profiler made to the computer’s video card. This fine-tuning helps match the display to the selected white point and gamma settings.
Your monitor is calibrated and profiled. ICC compatible applications will now automatically consider your monitor profile and temporarily convert color content in your files from their source profiles (e.g. AdobeRGB, sRGB) to your monitor profile. This way you will see accurate color (what is in your file) on screen.
To calibrate your monitor you could try QuickGamma, free software based on Norman Koren"s gamma and black level chart. But the best solution is to calibrate with a hardware calibration device.