Beside the parameter described in Display Tests some additional things should be fulfilled.

The value for the minimum luminance L'min should not be significantly below 0.5 cd/m², as the greater visual acuity of the eye (“cone vision”) is only utilized at a higher minimum luminance. However, such low values can only be achieved in heavily darkened rooms, as otherwise the light reflection on the monitor quickly reaches values above 1 cd/m².

The minimum display luminance Lmin should be greater than the veil luminance Lamb, as otherwise dark image details could be overlaid by the veil luminance (extraneous light). If this is the case, the room conditions must be improved by taking appropriate measures (reducing the reflected light on the monitor) or a significantly brighter monitor must be used. In some cases, edge shielding on the monitor can also reduce the veil luminance.

Different requirements apply to the number of active monitor pixels, the monitor size, and the pixel size for the various application classes.

Pixel defects (individual monitor pixels behave differently from their neighbors and are therefore noticeable) can occur on monitors. If they impair image evaluation, the monitor should be replaced.

For ergonomic working, adjustment options for viewing angle and height should be available; the viewing distance to the monitor must also be adjustable.