DMC16129H (AG) No.2000-0071 OPTREX CORPORATION Page 5/15
OPTREX
3.Optical Specifications
3.1.LCD Driving Voltage
Parameter Symbol Conditions Min. Typ. Max. Units
Recommended Ta= -20℃
-
-
7.6 V
LCD Driving Voltage VCC-VEE Ta=25℃ 5.8 6.2 6.7 V
Note 1 Ta=70℃ 4.9 -
-
V
Note 1 : Voltage (Applied actual waveform to LCD Module) for the best contrast. The range of
minimum and maximum shows tolerance of the operating voltage. The specified contrast ratio and
response time are not guaranteed over the entire range.
3.2.Optical Characteristics
Ta=25℃, 1/8 Duty, 1/4 Bias, V
D
=6.2V (Note 4), θ=10゚, φ=270゚
Parameter Symbol Conditions Min. Typ. Max. Units
Contrast Ratio Note 1 CR
θ
=20゚, φ=270゚
-
7 -
Viewing Angle Shown in 3.3
Response Rise Note 2 TON
-
-
80 160 ms
Time Decay Note 3 T
OFF
-
-
35 70 ms
Note 1 : Contrast ratio is definded as follows.
CR = L
OFF
/ LON CR = LON / L
OFF
L
ON
: Luminance of the ON segments
L
OFF
: Luminance of the OFF segments
Note 2 : The time that the luminance level reaches 90% of the saturation level from 0% when ON
signal is applied.
Note 3 : The time that the luminance level reaches 10% of the saturation level from 100% when OFF
signal is applied.
Note 4 : Definition of Driving Voltage V
D
Assuming that the typical driving waveforms shown below are applied to the LCD Panel at
1/A Duty - 1/B Bias ( A : Duty Number, B : Bias Number ). Driving voltage V
D
is definded
as follows.
V
D
= (Vth1+Vth2) / 2
Vth1 : The volt age V
O-P
that should provide 50% of the satulation level in the luminance
measured atθ= 10゚, φ=270゚on the segment which the ON signal is applied to.
Vth2 : The volt age V
O-P
that should provide 26% of the satulation level in the luminance
measured atθ= 40゚, φ=270゚on the segment which the OFF signal is applied to.
V
O-P
1 /
f
F