ASUS LS201 20" LCD Monitor

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Image Quality Testing


Image Quality Testing with Everest Ultimate Edition  
Everest Ultimate Edition
EVEREST Ultimate Edition is a popular system diagnostics and benchmarking solution for enthusiasts PC users, based on the award-winning EVEREST Technology. During system optimizations and tweaking it provides essential system and overclock information, advanced hardware monitoring and diagnostics capabilities to check the effects of the applied settings. Complete software, operating system and security information makes EVEREST Ultimate Edition a comprehensive system diagnostics tool that offers a total of 100 pages of information about your PC.

We put the ASUS LS201 through some color and text reading diagnostics using Everest Ultimate Edition from Lavalys. Everest's Monitor Diagnostics provide a few key test patterns that allow us to evaluate various aspects, such as color accuracy, and uniformity.  We ran through all of the screens, and captured a few that had points of interest.

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A sample of the screen diagnostics available with Lavalys' Everest Ultimate Edition

We ran the Everest monitor diagnostics test with the ASUS LS201 set to the factory defaults using the "Standard" Splendid Video mode. The LS201 performed well on all of the tests. It did a good job on all of the grid and text reproduction tests, producing clear, sharp text regardless of the color combinations used. Like all LCDs should, the LS201 passed the grid and pattern tests with aplomb.

The LS201 also did a good job on the color and gradient tests. In each of the solid-fill tests, the screen is supposed to display a single uniform color. In all of these tests, we noticed that the top of the screen is slightly darker than the bottom. This is especially noticeable on the orange solid-fill test. This can also be observed in the red, green and blue solid-fill tests, but it is significantly less apparent. This issue is a limitation of LCDs based on the TN panel technology, like the LS201. It is one of many reasons that make the TN panel technology the least desirable for any application where color accuracy is critical, and the LS201 is no exception.

The LS201 didn't have any trouble with the grey and white solid-fill tests, but the black solid-fill test revealed slight backlight bleed along the bottom of the screen. The backlight bleed isn't bad and not too noticeable. The color pallatte tests weren't a problem for the LS201 and it performed well considering the panel technology in use. As with nearly all LCDs based on TN panel technology, the LS201 suffers from a relatively low color gamut and doesn't offer full 8-bit color processing. This shouldn't be a problem for gaming, multimedia or everyday office use, but it could be a problem for professional graphics work, where color accuracy is important.

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