Advantech IDK-1108R-45SVA1E User Manual page 33

Note3 Definition of Luminance
Measure the luminance of white state at center point.
Note4 Definition of Luminance Uniformity
Measured Maximum luminance [L(MAX)] and Minimum luminance[L(MIN)] on the 9
points
Luminance Uniformity is calculated with the following formula:
ΔL =[ L(MIN) / L (MAX) ] X 100%
Note5 Definition of Viewing Angle
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