DMC40218 OPTREX CORPORATION, DMC40218 Datasheet - Page 5

• Manufacturer Part Number: DMC40218
• Description: LCD Module
• Manufacturer: OPTREX CORPORATION

Recommended
Contrast Ratio
Viewing Angle
Response
3.Optical Specifications
Note 1 :
Note 1 : Contrast ratio is definded as follows.
Note 2 : The time that the luminance level reaches 90% of the saturation level from 0% when ON signal
Note 3 : The time that the luminance level reaches 10% of the saturation level from 100% when OFF
Note 4 : Definition of Driving Voltage V
3.1.LCD Driving Voltage
3.2.Optical Characteristics
LCD Driving Voltage
DMC40218* (CA) No.2000-0148
Time
Parameter
Parameter
minimum and maximum shows tolerance of the operating voltage. The specified contrast ratio and
response time are not guaranteed over the entire range.
L
L
is applied.
signal is applied.
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
follows.
Vth1 : The voltage V
Vth2 : The voltage V
ON
OFF
Rise
Decay Note 3
CR = L
V
D
: Luminance of the ON segments
: Luminance of the OFF segments
Voltage (Applied actual waveform to LCD Module) for the best contrast. The range of
V
= (Vth1+Vth2) / 2
measured at θ = 10 ﾟ , φ =270 ﾟ on the segment which the ON signal is applied to.
measured at θ = 40 ﾟ , φ =270 ﾟ on the segment which the OFF signal is applied to.
O-P
Note 1
OFF
Note 2
Note 1
1 / (
/ L
〈 ON SIGNAL 〉
ON
f
F
× A )
CR = L
O-P
O-P
V
Symbol
Symbol
CC
T
T
that should provide 50% of the satulation level in the luminance
that should provide 26% of the satulation level in the luminance
CR
OFF
ON
-V
ON
EE
/ L
D
OFF
Ta=25 ℃ , 1/16 Duty, 1/5 Bias, V
θ =20 ﾟ , φ =270 ﾟ
Conditions
Conditions
Ta=25 ℃
Ta=50 ℃
Ta= 0 ℃
−
−
OPTREX
OPTREX CORPORATION
1 /
〈 OFF SIGNAL 〉
f
F
Shown in 3.3
Min.
Min.
4.0
3.4
−
−
−
−
D
=4.3V (Note 4), θ =10 ﾟ , φ =270 ﾟ
( B-2 ) × V
Typ.
Typ.
180
130
4.3
3.5
−
−
D
is definded as
O-P
Max.
Max.
270
200
5.0
4.6
−
−
/ B
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Units
Units
ms
ms
V
V
V