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. Additionally, …

The response time indicates how quickly a monitor will react to changes on the screen. This is especially relevant for fast-paced computer games. Quick response time check

This test may be affected by your operating system color profile. The following image shows scales of linearly increasing RGB values. On a good monitor, you should see roughly equal …

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 …

The greyscale gradients should be displayed smoothly without any bands, lines, or colors showing up. Also watch whether there isn't too much noise in the darker parts. TFT screens usually use …

The sharpness test comes in two versions. The first variant ("DVI") is with vertical lines and fine checkerboard patterns. The second variant ("VGA") is with only horizontal lines, which should …

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 redistribution of …

This is a gamma calibration test image. The gamma defines how the luminance (the amount of light) on the screen depends on the 8-bit RGB values. As of 2007, computer monitors are …

For this test it is essential that the environment is dark and that the browser or image viewer is running in full-screen mode. Use the contrast setting, and maybe gamma to improve the …

The contrast ratio is the ratio between the amount of light coming from the screen when it is displaying bright white, and the amount of light when it is supposed to be display pure black. …