DMC20434N Optrex, DMC20434N Datasheet - Page 5

• Manufacturer Part Number: DMC20434N
• Description: LCD Module
• Manufacturer: Optrex

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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
DMC20434N (AJ) No.97-0208
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.
V
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
D
=V
Rise
Decay Note 3
CR = L
V
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
CC
V
the segment which the ON signal is applied to.
the segment which the OFF signal is applied to.
= (Vth1+Vth2) / 2
O-P
-V
Note 1
Note 1
ADJ
Note 2
OFF
1 / (
-V
/ L
(ON SIGNAL)
BE
f
ON
F
O-P
O-P
A )
V
Symbol
Symbol
CC
T
T
that should provide 50% of the satulation level in the luminance at
that should provide 50% of the satulation level in the luminance at
CR
OFF
ON
-V
EE
D
Ta=25˚C, 1/16 Duty, 1/5 Bias, V
Conditions
Conditions
= 0˚, = –˚
Ta=25˚C
Ta=50˚C
Ta= 0˚C
–
–
OPTREX CORPORATION
1 /
(OFF SIGNAL)
f
F
Shown in 3.3
Min.
Min.
4.2
4.0
–
–
–
–
D
( B-2 )
=4.5V (Note 4), = 0˚, = –˚
Typ.
Typ.
140
180
4.5
4.5
–
–
V
O-P
D
/ B
Max.
Max.
is definded
210
270
5.2
4.8
–
–
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Units
Units
ms
ms
V
V
V