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Brightness and Color Uniformity with 12-Bit LUT |
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Achieving uniform levels of brightness and color across the
screen has been all but impossible with LCD monitors. To correct
this problem, EIZO has developed an ASIC (Application Specific
Integrated Circuit) and incorporated it into the ColorEdge CG211.This ASIC has a 12-bit look-up table (LUT) with an extensive palette of 4,081 grayscale tones for each R, G, and B, and internal calculation accuracy of 16-bits (64 times more accurate than 10-bit internal calculation). |
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With Digital Uniformity Compensation |
Without Digital Uniformity Compensation |
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Color-separated image with Delta-E*ab distribution across the screen (gray level 128 measured) |
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16-bit Processing |
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The 16-bit internal calculation of the CG211
produces grayscale rendering that is on a par with highend
CRT monitors.The result is not only a much greater degree of detail in dark areas, but overall uniformity of brightness and color throughout the entire screen. |
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With 10-bit processing, the error rate is high in low tonal areas during calculation. With 16-bit processing, accuracy is significantly improved resulting in fewer conversion errors. |
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Hardware-Based Portrait Mode Support for Macintosh and Windows |
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The ColorEdge CG211 provides built-in support for portrait mode with the EIZO’s exclusive ActiveRotation II technology.The monitor includes a gravity sensor, so it “knows” when it is being rotated, and changes between portrait and landscape modes accordingly. Because it is hardware-based, ActiveRotation II does not absorb CPU power or compromise graphics performance. It supports Macintosh OS 9/X and Windows 2000/XP platforms.
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Graphics board support for ActiveRotation II varies by manufacturer and model. With some graphics boards, it may be necessary to change the resolution on the PC side or restart the computer after rotating the screen. For details on graphics board support, please see the compatibility page.
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Factory Adjustment of Gamma |
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Each ColorEdge CG211 monitor is adjusted at the factory to a gamma level of 2.2. This is accomplished by measuring the R, G and B gamma values from 0 to 255, then using the monitor’s Look-Up Table (LUT) with its 4,081-tone palette to select the 256 most appropriate tones to achieve the 2.2 value. The benefit of factory adjustment is that precise, non-fluctuating gamma values are necessary for the accurate display of colors. If colors are not based on specific values and cannot be adjusted, images will be displayed differently by different monitors. The ColorEdge CG211 provides both precision and consistency, so you can be sure that the final product will look exactly the way you want it to. |
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Accurate Color Temperature |
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Another important factor in achieving accurate, natural colors,
especially for midtones, is setting the proper color temperature
for white (white point). ColorEdge monitors are exceptionally
versatile in this regard, providing color temperature adjustment
from 4,000K to 10,000K in 500K increments (including 9,300K).
This wide range ensures that users can achieve the optimum color
temperature for any type of work, such as "paper white"
for DTP.
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Auto Brightness Control |
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 This EIZO-patented circuit stabilizes brightness soon after startup or coming out of power save mode. Additionally, this circuit eliminates brightness fluctuation by detecting changes in the surrounding backlight temperatures and automatically adjusting the divergence to the brightness default setting or user-defined level. |
