DMC40457 OPTREX CORPORATION, DMC40457 Datasheet - Page 5

• Manufacturer Part Number: DMC40457
• 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
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
LCD Driving Voltage
3.2. Optical Characteristics
Time
DMC40457 (AA) No.99-0117
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
signal 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
as follows.
Vth1 :The voltage V
Vth2 :The voltage V
ON
OFF
Rise
Decay Note 3
CR = L
V
V
O-P
Voltage (Applied actual waveform to LCD Module) for the best contrast. The range of
: Luminance of the ON segments
: Luminance of the OFF segments
D
measured atθ= 10 ﾟ, φ=270 ﾟ on the segment which the ON signal is applied to.
measured atθ= 40 ﾟ, φ=270 ﾟ on the segment which the OFF signal is applied to.
= (Vth1+Vth2) / 2
Note 1
Note 1
Note 2
OFF
1 / (
〈 ON SIGNAL 〉
/ L
f
F
× A )
ON
O-P
O-P
CR = L
V
Symbol
Symbol
CC
T
T
that should provide 50% of the saturation level in the luminance
that should provide 26% of the saturation level in the luminance
CR
OFF
ON
Ta=25℃, 1/16 Duty, 1/5 Bias, V
-V
EE
ON
D
/ L
θ=20 ﾟ, φ=270 ﾟ
OFF
Conditions
Conditions
Ta=25℃
Ta=50℃
Ta= 0℃
−
−
OPTREX
OPTREX CORPORATION
1 /
〈OFF SIGNAL〉
f
F
D
Shown in 3.3
Min.
Min.
=4.5V (Note 4), θ=10 ﾟ, φ=270 ﾟ
4.2
3.7
−
−
−
−
( B-2 )×V
Typ.
Typ.
130
130
4.5
−
−
7
O-P
D
/ B
is definded
Max.
Max.
200
200
5.2
4.8
−
−
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Units
Units
ms
ms
V
V
V