[Contrast]     [Display settings]     [Clock and phase]     [Sharpness]     [Gamma calibration]     [Black level]     [White saturation]     [Gradient (banding)]     [Inversion (pixel-walk)]     [Response time]     [Viewing angle]     [Contrast ratio]     [Subpixel layout]  

LCD test images without embedded color profiles

This page contains the test images of the Lagom LCD monitor test pages, the embedded color profile information is removed from some of the tests. More specifically, the contrast, gamma, black, white, and gradient tests do not contain embedded sRGB, gAMA, and cHRM information. The use and redistribution of this page and the images thereon are restricted. See the copyright information at the bottom for more details.

Quick contrast test

All 32 bands should be distinguishable from each other and from the background. [color profile stripped]

Quick gamma
test image

Clock/phase calibration

Native resolution required.

Display settings


Adjust the sharpness such that all squares blend in. Native resolution required.

Sharpness test image

Gamma calibration

The stripes should blend in at value 2.2. Native resolution required. [color profile stripped]

Gamma calibration test image

Gradient test (banding test)

The gradient should be smooth without vertical lines or bands. [color profile stripped]

Gradient test

Black-level test

All squares should be distinguishable from the background, preferably without visible noise. [color profile stripped]

Contrast test

White saturation test

All squares should be distinguishable from the background. [color profile stripped]

White saturation

Inversion (pixel walk) test

One of the 9 boxes below may flicker slightly. The less is flickers, the better. Native resolution required.


Full-screen version below:

Current: none
Warning: do not click prev/next if you are sensitive to flicker.

Response-time test

Less flashing on the left means a shorter (faster) response time. Use the chart on the right for comparison. Native resolution required.

Response time test Response time reference chart

Viewing angle test

The colors below should change as little as possible with the viewing angle.






Contrast ratio

To measure the contrast ratio, please visit the contrast-ratio page.

Subpixel rendering

Check that the font display is optimal with subpixel smoothing. The edge in the colored square that appears as a black line points towards your subpixel layout.

© Copyright Han-Kwang Nienhuys, 2008. The text and accompanying images may not be redistributed. This includes placing the images on other websites, either as a copy or through hotlinking. Read more...

Last modified 27 Mar 2008