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In addition to this two-dimensional color description, the color has a third dimension: its brightness. As many users have seen, when placing these two monitors side by side, Apple Computer's liquid crystal display far outperforms CRT monitors in terms of brightness. In our comparison, adding this third dimension can show that the total amount of colors displayed on the LCD screen of Apple has actually surpassed the total amount of color displayed by the corresponding CRT display, and the color appears more vivid and true because it The total color range exhibited is larger than the range of colors exhibited by the CRT display. The benefit of this larger color representation range is that the user can use the Apple LCD display under normal lighting conditions to minimize the dynamic range of the displayed color (that is, not to dilute the color). CRT monitors can only achieve this in darker rooms, but Apple's LCD displays can also provide a wider range of colors in bright rooms.
2. The consistent color described above is how important the ability to provide a large range of colors is for the display. Equally important is that it should always be able to display such a wide range of colors across different physical locations throughout the screen. These are all aspects of color consistency. Color consistency is an important advantage of Apple Computer's LCD screen. Currently Apple Computer LCD screens provide excellent color consistency across the entire screen (top to bottom, left to right). One important reason for its ability to achieve color consistency is its advanced wide viewing angle technology. Without wide viewing angle technology, the color at these corners will be biased.
Another aspect of monitor color consistency is whether it can remain stable over time. For different uses, each monitor will be different. The goal of display manufacturers is to minimize the impact of these changes on the display's color performance. In this respect, the performance of Apple's LCD screens again exceeds that of CRT monitors.
The CRT monitor works by letting the electron beam excite the phosphor to emit red, green, and blue light. In the era of CRT displays, the ability of these phosphors to emit light uniformly was very limited. The lifetimes of different rates of red, green, and blue phosphorescence are different, and will eventually cause color deviations.
One important parameter that affects the color in the display is the white point. We generally think that white is an absolute color. However, white actually has many different shades - compare the "white" sunlight, incandescent light and fluorescent light. The white point is very important because it will affect the effect of Other colors seen in the display. More importantly, keep a consistent white point at all times because the white point change will cause all other colors on the screen to deviate. Apple LCD screens are excellent at maintaining a consistent white point, which provides a stable and consistent environment for viewing color images. In contrast, after 2-3 years of use, CRT displays will show more serious deviations in color display, which can no longer meet professional requirements and have to be updated, but Apple LCD displays can maintain a longer life.
The screen proofing system uses Apple LCD screens to achieve better color quality and maintain color consistency, but for the particularly stringent job of color management in the print design industry, carefully manage every device in the entire process (scanners The performance of monitors, printers, printers, etc. is still very important. Because each device has a different color reproduction capability, if there is no color management mechanism, it is difficult to maintain a consistent color among different devices for a particular image. Therefore, a high-quality color management system is very necessary.
The color management system works by collecting the relevant color information of each device and then converting the color characteristics of different devices through color correction. Apple Computer ColorSync is the best method for color management in the industry. It uses the "International Color Consortium" (ICC) format, which conforms to the industry standard, to store the color information of different devices. This is the so-called "ICC profile".
The screen proofing system first uses the professional screen color measuring equipment (screen spectrophotometer) and software to obtain the "ICC profile" of the Apple LCD screen, and uses the spectrophotometer for measuring the color of the paper proofs and the software to obtain the "ICC for proofing." "Properties file", and then modify and edit the ICC profile of the display according to the deviation of the physical measurement values ​​and the deviation of the human visual system. Finally, only the profile that measures the two independent color gamut spatial comparison quantitative indicators can meet the screen. Proofing requirements.
The other features of Apple's LCD display range from its precise color technology to the provision of crisp, edge-to-edge text and brilliant colors. Apple's LCD display is not only far better than CRT monitors, but also has advantages over LCD displays from other competitors. Displays occupy an important position in the design and printing work. Whether it's a 17-inch Apple Studio Display, a 20-inch Apple Cinema Display, or a 23-inch Apple Cinema HD Display, all with high-definition, jitter-free, wide viewing angles, fast response, full digital connectivity, and perfect integration with the PowerMac G4 Outstanding features.
1. High Definition In a CRT display, the energy generated by the electron beam striking the phosphor forms light, which will gradually decay as the beam scans to other parts of the screen. The sharpness of a CRT display is determined by the size of the area the electron beam excites. In order to minimize visible jitter when the phosphor is excited and attenuated, a good CRT monitor quickly refreshes every part of the screen at a rate of typically more than 75 times per second. . However, at such speeds, it is difficult to control the spot size of the electron beam and it is difficult to produce a clear transition between the black and white areas. Therefore, it is difficult for the CRT display to achieve both a high refresh rate and a high refresh rate at the same time. It also has a clear image. (To be continued)
2. The consistent color described above is how important the ability to provide a large range of colors is for the display. Equally important is that it should always be able to display such a wide range of colors across different physical locations throughout the screen. These are all aspects of color consistency. Color consistency is an important advantage of Apple Computer's LCD screen. Currently Apple Computer LCD screens provide excellent color consistency across the entire screen (top to bottom, left to right). One important reason for its ability to achieve color consistency is its advanced wide viewing angle technology. Without wide viewing angle technology, the color at these corners will be biased.
Another aspect of monitor color consistency is whether it can remain stable over time. For different uses, each monitor will be different. The goal of display manufacturers is to minimize the impact of these changes on the display's color performance. In this respect, the performance of Apple's LCD screens again exceeds that of CRT monitors.
The CRT monitor works by letting the electron beam excite the phosphor to emit red, green, and blue light. In the era of CRT displays, the ability of these phosphors to emit light uniformly was very limited. The lifetimes of different rates of red, green, and blue phosphorescence are different, and will eventually cause color deviations.
One important parameter that affects the color in the display is the white point. We generally think that white is an absolute color. However, white actually has many different shades - compare the "white" sunlight, incandescent light and fluorescent light. The white point is very important because it will affect the effect of Other colors seen in the display. More importantly, keep a consistent white point at all times because the white point change will cause all other colors on the screen to deviate. Apple LCD screens are excellent at maintaining a consistent white point, which provides a stable and consistent environment for viewing color images. In contrast, after 2-3 years of use, CRT displays will show more serious deviations in color display, which can no longer meet professional requirements and have to be updated, but Apple LCD displays can maintain a longer life.
The screen proofing system uses Apple LCD screens to achieve better color quality and maintain color consistency, but for the particularly stringent job of color management in the print design industry, carefully manage every device in the entire process (scanners The performance of monitors, printers, printers, etc. is still very important. Because each device has a different color reproduction capability, if there is no color management mechanism, it is difficult to maintain a consistent color among different devices for a particular image. Therefore, a high-quality color management system is very necessary.
The color management system works by collecting the relevant color information of each device and then converting the color characteristics of different devices through color correction. Apple Computer ColorSync is the best method for color management in the industry. It uses the "International Color Consortium" (ICC) format, which conforms to the industry standard, to store the color information of different devices. This is the so-called "ICC profile".
The screen proofing system first uses the professional screen color measuring equipment (screen spectrophotometer) and software to obtain the "ICC profile" of the Apple LCD screen, and uses the spectrophotometer for measuring the color of the paper proofs and the software to obtain the "ICC for proofing." "Properties file", and then modify and edit the ICC profile of the display according to the deviation of the physical measurement values ​​and the deviation of the human visual system. Finally, only the profile that measures the two independent color gamut spatial comparison quantitative indicators can meet the screen. Proofing requirements.
The other features of Apple's LCD display range from its precise color technology to the provision of crisp, edge-to-edge text and brilliant colors. Apple's LCD display is not only far better than CRT monitors, but also has advantages over LCD displays from other competitors. Displays occupy an important position in the design and printing work. Whether it's a 17-inch Apple Studio Display, a 20-inch Apple Cinema Display, or a 23-inch Apple Cinema HD Display, all with high-definition, jitter-free, wide viewing angles, fast response, full digital connectivity, and perfect integration with the PowerMac G4 Outstanding features.
1. High Definition In a CRT display, the energy generated by the electron beam striking the phosphor forms light, which will gradually decay as the beam scans to other parts of the screen. The sharpness of a CRT display is determined by the size of the area the electron beam excites. In order to minimize visible jitter when the phosphor is excited and attenuated, a good CRT monitor quickly refreshes every part of the screen at a rate of typically more than 75 times per second. . However, at such speeds, it is difficult to control the spot size of the electron beam and it is difficult to produce a clear transition between the black and white areas. Therefore, it is difficult for the CRT display to achieve both a high refresh rate and a high refresh rate at the same time. It also has a clear image. (To be continued)
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