DMC-20481NY-LY-ABE Optrex America Inc, DMC-20481NY-LY-ABE Datasheet - Page 6

• Manufacturer Part Number: DMC-20481NY-LY-ABE
• Description: LCD SUPERTWIST 20X4/ LED BACKLT
• Manufacturer: Optrex America Inc
• Series: DMC-20481r

Specifications of DMC-20481NY-LY-ABE

• Display Type: STN - Super-Twisted Nematic
• Display Mode: Transmissive
• Number Of Digits/alpha: 80
• Outline L X W X H: 98.50mm x 61.00mm x 15.60mm
• Viewing Area: 76.00mm L x 25.20mm W
• Backlight: LED - Yellow
• Display Format: 20 x 4
• Character Size: 4.75mm H x 2.95mm W
• Character Format: 5 x 8 Dots
• Voltage - Supply: 5.0V
• Dot Size: 0.55mm W x 0.55mm H
• Interface: Parallel
• Operating Temperature: 0°C ~ 50°C
• Lead Free Status / Rohs Status: No
• Other names: 73-1094; DMC-20481NY-LY; OP420NY

Recommended
Contrast Ratio
Viewing Angle
Response
DMC20481NY-LY-ABE (AZ) No.99-0209
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
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
the segment which the ON signal is applied to.
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
DD
T
T
that should provide 50% of the saturation level in the luminance at
that should provide 50% of the saturation level in the luminance at
CR
OFF
ON
-V
EE
Ta=25℃, 1/16 Duty, 1/5 Bias, V
D
θ= 0 ﾟ, φ=－ﾟ
Conditions
Conditions
Ta=25℃
Ta=50℃
Ta= 0℃
－
－
OPTREX
OPTREX CORPORATION
1 /
〈 OFF SIGNAL 〉
f
F
Shown in 3.3
Min.
Min.
4.2
4.0
－
－
－
－
D
=4.5V (Note 4), θ= 0 ﾟ, φ=－ﾟ
( B-2 ) × V
Typ.
Typ.
140
180
4.5
－
－
8
O-P
D
Max.
Max.
is definded
/ B
210
270
5.2
4.8
－
－
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Units
Units
ms
ms
V
V
V