DispcalGUI Verification results

[jeffo]

hey there,
I am interested to know, if there is someone that could explain in a few words, in which decent range should be the following values of the DispcalGUI Verification results please,
0.5 .. 2 deltaE in all the cases?

Brightness error =  cd/m^2 (?)
White point error = deltaE (?)
Maximum neutral error  deltaE (?)
Average neutral error =  deltaE (0.5 ...2) as far as I've found;
Thank you,

[markanini]

Under 1 deltaE is imperceptible. Above 2-3 deltaE differences are visible to the eye. My display reported somewhere around 0.4 average deltaE and 1.8 max deltaE. It's a mid-range IPS model from 2010.

[jeffo]

Thank you, good to know. How about the Brightness error =  cd/m^2 (?)

[digitaldog]

Average neutral error =  deltaE (0.5 ...2) as far as I've found;

Average of how many samples?
Over what range of color's (color space used)? Some colors are much more difficult to hit than others.
IF the original instrument introduces noise in the data (and all do to varying degrees), or errors, did you use the same instrument to produce this report?