Advantech IDK2121WNK2FHA2EES, Руководство пользователя

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IDK-2121W User Manual 4
Note 2: 9 points position
Note 3 : The luminance uniformity of 9 points is defined by dividing the maximum
luminance values by the minimum test point luminance
Note 4 : Measurement method
The LCD module should be stabilized at given temperature for 30 minutes to avoid
abrupt temperature change during measuring. In order to stabilize the luminance, the
measurement should be executed after the backlight has been on for 30 minutes in a
stable, windless and dark room. Optical Equipment: DT-100, or equivalent
Note 5 : Definition of response time:
The output signals of the photo detector are measured when the input signals are
changed from “Full Black” to “Full White” (rising time), and from “Full White” to “Full
Black ”(falling time), respectively. The response time is the interval between the 10%
and 90% of amplitudes. Please refer to the figure as below.
50 %
90 %
90 % 50 %
10 %
10 %
Minimum Brightness of nine points
W9
=
Maximum Brightness of nine points
100
90
10
0
%
Optical
response
White Black White
Tf Tr
90
10
0
Optical
response
White Black White
Tr