( Fig.5 - 4 )
? Measuring Response Time
( 1 ) Measuring Device
TOPCON BM-7?Measuring Field:1°
Tektronix Digital Oscilloscope
( 2 ) Measuring Point
Center of display, same as Method of Brightness Measurement
( 3 ) Method of Measuring
· Set LCD panel to? = 0 °,and f = 0 °.
· Input white? black? white to display by switching signal voltage.
· If the luminance is 0% and 100% immediately before the change of signal voltage, thent r is
optical response time during the change from 90% to 10% immediately after rise of signal voltage,
andt d is optical response time during the change from 10% to 90% immediately after decay of
signal voltage.
White
100%
90%
Black
White
Brightness
10%
0%
tr
td
T-51440GL070HU-FW-AC
OPTREX CORPORATION
OPTREX
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