Advantech IDK-2108 Series User Manual page 35

Note 2: 9-point position
90 %
Note 3: The luminance uniformity of 9 points is defined by dividing the maximum
luminance values by the minimum test point luminance
=
W9
Note 4: Measurement method
The LCD module should be stabilized at a given temperature for 30 minutes to avoid
abrupt temperature changes during measuring. In order to stabilize the luminance,
the measurement should be executed after the backlight has been lit for 30 minutes
in a stable, windless and dark room using optical equipment: DT-100 or equivalent.
50 %
Minimum Brightness of nine points
Maximum Brightness of nine points
27
10 %
10 %
50 %
90 %
IDK-2108 User Manual