DMC-20215A Optrex America Inc, DMC-20215A Datasheet - Page 6

• Manufacturer Part Number: DMC-20215A
• Description: LCD MODULE 20X2 CHARACTER
• Manufacturer: Optrex America Inc
• Series: DMC-20215r

Specifications of DMC-20215A

• Display Type: TN - Twisted Nematic
• Display Mode: Reflective
• Number Of Digits/alpha: 40
• Outline L X W X H: 116.00mm x 44.00mm x 11.00mm
• Viewing Area: 83.00mm L x 18.60mm W
• Backlight: Without Backlight
• Display Format: 20 x 2
• Character Size: 5.55mm H x 3.20mm W
• Character Format: 5 x 8 Dots
• Voltage - Supply: 5.0V
• Dot Size: 0.60mm W x 0.65mm H
• Interface: Parallel
• Operating Temperature: 0°C ~ 50°C
• Other names: 73-1055; OP2205A

Recommended
Contrast Ratio
Viewing Angle
Response
3.Optical Specif ications
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
3.2.Optical Characteristics
LCD Driving Voltage
Time
DMC20215A (AE) No.98-0171
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
CR = L
V
Rise
Decay Note 3
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
V
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
O-P
Note 1
Note 1
OFF
Note 2
1 / (
〈 ON SIGNAL 〉
/ L
ON
f
F
× A )
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
EE
Ta=25℃, 1/16 Duty, 1/5 Bias, V
D
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.
D
4.0
3.5
－
－
－
－
=4.3V (Note 4), θ=20ﾟ, φ=270ﾟ
( B-2 ) × V
Typ.
Typ.
180
130
4.3
3.5
－
－
D
is definded
O-P
Max.
Max.
270
200
5.0
4.6
－
－
/ B
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Units
Units
ms
ms
V
V
V