Welcome to the Lagom LCD monitor test pages. With the test images on these pages, you can easily adjust the settings of your monitor to get the best possible picture quality.

Single-page version This is the single-page version of the Lagom LCD monitor test pages. The full version contains extensive descriptions of how to use and interpret the images. The use and …

LCD monitors often have a "sharpness" control, which can emphasize or deemphasize boundaries between light and dark areas. Ideally, it does neither, unless you like a bit of fuzziness or like small …

In order to prevent damage, LCD displays quickly alternate the voltage between positive and negative for each pixel, which is called 'polarity inversion'. Ideally, the rapid polarity inversion wouldn't be …

Most LCD monitors have a gamma setting that you can play with. In addition, the contrast setting can affect this test, but don't change the contrast so much that it fails the quick contrast test.

LCD monitors are generally updated 60 times per second, which means that the accuracy is never better than 16.67 milliseconds. Take a photo with a short shutter time of both screens to evaluate this.

Banding A bad monitor (or less likely a bad video card) will show something like the image below. Lines and bands show up, and moreover, the darker part of the gradient has become indistinguishable …

Welkom bij de Lagom LCD-monitor testbeelden. Met deze testbeelden kun je makkelijk de instellingen van je monitor aanpassen voor de best mogelijke beeldkwaliteit.

Use the contrast setting, and maybe gamma to improve the display of the darker squares, but watch out for undoing the optimizations in the earlier images. On most LCD monitors, the brightness setting …

This is what the Gamma viewing angle test looks like on a fairly typical mid-range LCD monitor (a 2005 model) based on a TN matrix. The first photo is taken from a distance equal to the screen diagonal.