3.Optical Specifications
3.1.LCD Driving Voltage
Parameter
Recommended
LCD Driving Voltage
Note 1
Symbol
Conditions
Ta= 0℃
Min.
－
Typ.
－
Max.
5.0
Units
V
VCC-VEE
Ta=25℃
Ta=50℃
4.4
4.2
4.7
－
5.0
V
－
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℃, 1/16 Duty, 1/4.5 Bias, VD=4.7V (Note 4), θ= 0 ﾟ, φ=－ﾟ
Parameter
Symbol
CR
Conditions
Min.
Typ.
10
Max.
Units
Contrast Ratio
Viewing Angle
Note 1
θ= 0 ﾟ, φ=－ﾟ
－
－
Shown in 3.3
Response
Time
Rise Note 2
Decay Note 3
TON
－
－
－
－
100
200
200
300
ms
ms
TOFF
Note 1 : Contrast ratio is definded as follows.
CR = LOFF / LON
LON : Luminance of the ON segments
OFF : Luminance of the OFF segments
L
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 VD
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 VD is definded
as follows.
VD = (Vth1+Vth2) / 2
Vth1 : The voltage VO-P that should provide 50% of the saturation level in the luminance at
the segment which the ON signal is applied to.
Vth2 : The voltage VO-P that should provide 50% of the saturation level in the luminance at
the segment which the OFF signal is applied to.
V
O-P
( B-2 )×V
/ B
O-P
f
1 /
f
F
1 / ( ×A )
F
〈ON SIGNAL〉
〈OFF SIGNAL〉
DMC16202NY-LY-AGE (AZ) No.99-0204
OPTREX CORPORATION
Page 6/16
OPTREX
OPTREX [ OPTREX CORPORATION ]
