11.3.1.4.3-1 Display Luminance

The display should have adequate luminance over the range of expected ambient illumination.

Additional Information: The luminance of either the character or its background, whichever is of higher luminance, should be a minimum of 35 cd/m² (10 ft-L), preferably a minimum of 100 cd/m2 (29 ft-L). The preferred display luminance range should be between a minimum of 80 cd/m2 (23 ft-L) and a maximum of 160 cd/m² (47 ft-L). Some modern displays are capable of producing a considerably higher luminance than 160 cd/m² (47 ft-L). See IDMS (2012) for measurement information.5908, 0700, 100