Acer AL922 Manual page 9

Tft lcd monitor
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Notes 5) Definition of Luminance of White : measure the luminance of white at center point.
Notes 6)Definition of 9 points brightness uniformity (Measuring points: Refer to the Note 5)
B
=100
UNI
Bmax: Maximum brightness
Bmin: Minimum brightness
Notes 7) Definition of Flicker level
F
=
One maximum value of three estimated values.
For this test ,an LMD(Light Measurement Device)is needed with adequate response time
to track any visible rate flicker component and with a voltage level output proportional
To luminance intensity.
Test Pattern: For dot inversion Driving(Gray levels of foreground dots on the test panel
Are G22,G32,and G45)
Test Point :Center point of the display area
Bmin
Bmax
Flicker Voltage
pp
LMD Voltage
dc
x 100 %
9

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