Advantech IDK-1110P Series User Manual page 37

Note! Definition of Contrast Ratio
Contrast ratio is calculated with the following formula :
Contrast Ratio (CR)=(White) Luminance of ON
OFF
Note! Definition of Luminance:
Measure the luminance of white state at center point.
Note! Definition of Luminance Uniformity:
Measured Maximum
nance[L(MIN)] on the 9 points
Luminance Uniformity is calculated with the following formula:

L =[ L(MIN) / L (MAX) ] X 100%
Note! Definition of Viewing Angle

luminance [L(MAX)]
31
(Black) Luminance of
and Minimum lumi-
IDK-1110P User Manual