Acer AL1717 Service Manual page 15

Notes 5) Definition of Luminance of White : measure the luminance of white at center point.
Notes 6)Definition of 5 points brightness uniformity (Measuring points: Refer to the Note 5)
B =
UNI
Bmax: Maximum brightness
Bmin: Minimum brightness
Notes 7) Definition of Flicker level
=  x 100 %
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
Bmax

Bmin
Flicker Voltage
pp
LMD Voltage
dc
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