Acer D240H Service Manual page 43

CT = | YB – YA | / YA × 100 (%)
Where
YA = Luminance of measured location without gray level 0 pattern (cd/m2)
YB = Luminance of measured location with gray level 0 pattern (cd/m2)
Note 9: Test Patern: Subchecker Pattern measured by TOPCON SR-3
R G B R G B
R G B R G B
R G B R G B
Method: Record dBV & DC value with TRD-100
Amplitude
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Product Specification
AU OPTRONICS CORPORATION
Gray Level = L127
Gray Level = L0
DC
=
Flicker (dB) 20
AC
Time
AC Level(at 30 Hz)
log
DC Level
M240HW01 V2
9