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Note 3: Definition of Response time
The response time is defined as the LCD optical switching time interval between
“White” state and “Black” state. Rise time (TON) is the time between photo detector output
intensity changed from 90% to 10%. And fall time (TOFF) is the time between photo
detector output intensity changed from 10% to 90%.
Fig. 4-3 Definition of response time
Note 4: Definition of contrast ratio
state
Black"
"
the
on
LCD
when
measured
Luminance
state
White"
"
the
on
LCD
when
measured
Luminance
(CR)
ratio
Contrast
=
Note 5: Definition of color chromaticity (CIE1931)
Color coordinates measured at center point of LCD.
Note 6: All input terminals LCD panel must be ground while measuring the center area of
the panel. The LED driving condition is IL=20mA of which each LED module is 3
LED serial.
100%
90%
10%
0%
TON
TOFF
White (TFT OFF)
Black (TFT ON)
White (TFT OFF)
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