Page 1
DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 1/14
OPTREX
Type No.
*******
June 18, 1998
First Edition
Final Revision
Quality Assurance Div.
Production Div.
Checked by
Checked by
Approved by
Production Div.
Production Div.
Drawn by
LCD Module Specification
ＤＭＣ－５０２１８
ＤＭＣ－５０２１８ＤＭＣ－５０２１８
ＤＭＣ－５０２１８
Table of Contents
1. General Specifications.............................................................................2
2. Electrical Specifications...........................................................................3
3. Optical Specifications..............................................................................5
4. I/O Terminal.............................................................................................7
5. Test............................................................................................................9
6. Appearance Standards............................................................................10
7. Code System of Production Lot..........................................................13
8. Type Number .........................................................................................13
9. Applying Precautions.............................................................................13
10. Handling Precautions.............................................................................14
Revision History
Rev. Date Page Comment
Page 2
DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 2/14
OPTREX
1.General Specifications
Operating Temp.
：
min. 0℃ ～ max. 50℃
Storage Temp.
：
min. -20℃ ～ max. 70℃
Display Format
：
20 characters × 2 lines
Display Fonts
：
5 × 8 dots ( 1 character )
Viewing Area
：
83.0 (W) × 18.6 (H) mm
Outline Dimensions
：
116.0 (W) × 37.0 (H) × 11.0 max. (D) mm
W eight
：
50g max.
LCD Type
：
NRD-7057
( TN / Clear-mode / Reflective )
Viewing Angle
：
6:00
Backlight
：
None
Drawings
：
Dimensional Outline UE-34169
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DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 3/14
OPTREX
2.Electrical Specifications
2.1.Absolute Maximum Ratings
V
SS
=0V
Parameter Symbol Conditions Min. Max. Units
Supply Voltage
(Logic)
VCC-VSS
－
-0.3 7.0 V
Supply Voltage
(LCD Drive)
VCC-VEE
－
0 7.0 V
Input Voltage VI
－
-0.3 VCC+0.3 V
2.2.Electrical Characteristics
Ta=25℃, V
SS
=0V
Parameter Symbol Conditions Min. Typ. Max. Units
Supply Voltage
(Logic)
VCC-VSS
－
4.5 － 5.5 V
Supply Voltage
(LCD Drive)
V
CC-VEE
Shown in 3.1 V
High-Level
Input Voltage
VIH VCC=5.0V±10% 2.2 － V
CC
V
Low-Level
Input Voltage
VIL VCC=5.0V±10% 0 － 0.6 V
High-Level
Output Voltage
VOH IOH=-0.205mA 2.4 － V
CC
V
Low-Level
Output Voltage
VOL IOL=1.6mA 0 － 0.4 V
Supply Current ICC VCC-VSS=5.0V
－
1.5 2.3 mA
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DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 4/14
OPTREX
2.3.Timing Characteristics
2.3.1.AC Timing Characteristics
V
CC
=5.0V±10%
Parameter Symbol Conditions Min. Max. Units
Enable Cycle Time
t
CYC
Fig.1, 2 1000 － ns
Enable Pulse Width High-Level PWEH Fig.1, 2 450 － ns
Enable Rise/Fall Time
t
E
r,
t
E
f Fig.1, 2 － 25 ns
Address Setup Time RS, R/W, E
t
AS
Fig.1, 2 40 － ns
Address Hold Time
t
AH
Fig.1, 2 10 － ns
Data Setup Time
t
DSW
Fig.1 195 － ns
Data Hold Time 1
t
H
Fig.1 10 － ns
Data Delay Time
t
DDR
Fig.2 － 320 ns
Data Hold Time 2
t
DHR
Fig.2 20 － ns
Fig.1 Bus Write Operation Sequence
Fig.2 Bus Read Operation Sequence
V
IH
V
IL
V
IH
V
IL
V
IL
V
IL
V
IH
V
IH
V
IL
V
IL
V
IL
V
IH
V
IH
V
IL
V
IL
PW
EH
t
AS
t
AH
t
AH
t
Ef
t
Er
t
DSW
t
H
t
CYC
ＲＳ
Ｒ／Ｗ
Ｅ
ＤＢ０～ＤＢ７
Valid Data
V
IH
V
IL
V
IH
V
IL
V
IH
V
IH
V
IL
V
IL
V
IL
V
OH
V
OH
V
OL
V
OL
PW
EH
t
AS
t
AH
t
AH
t
Ef
t
Er
t
CYC
ＲＳ
Ｒ／Ｗ
Ｅ
ＤＢ０～ＤＢ７
V
IL
V
IH
t
DDR
t
DHR
Valid Data
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DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 5/14
OPTREX
3.Optical Specifications
3.1.LCD Driving Voltage
Parameter Symbol Conditions Min. Typ. Max. Units
Recommended Ta= 0℃
－
－
5.0 V
LCD Driving Voltage VCC-VEE Ta=25℃ 4.2 4.5 4.8 V
Note 1 Ta=50℃ 3.6 －
－
V
Note 1 : Voltage (Applied actual waveform to LCD Module) for the best contrast. The range of
minimum and maximum shows tolerance of the operating voltage. The specified contrast ratio and
response time are not guaranteed over the entire range.
3.2.Optical Characteristics
Ta=25℃, 1/16 Duty, 1/5 Bias, V
D
=4.5V (Note 4), θ=10ﾟ, φ=270ﾟ
Parameter Symbol Conditions Min. Typ. Max. Units
Contrast Ratio Note 1 CR
θ
=20ﾟ, φ=270ﾟ
－
3.5 －
Viewing Angle Shown in 3.3
Response Rise Note 2 TON
－
－
180 270 ms
Time Decay Note 3 T
OFF
－
－
130 200 ms
Note 1 : Contrast ratio is definded as follows.
CR = L
OFF
/ LON CR = LON / L
OFF
L
ON
: Luminance of the ON segments
L
OFF
: Luminance of the OFF segments
Note 2 : The time that the luminance level reaches 90% of the saturation level from 0% when ON
signal is applied.
Note 3 : The time that the luminance level reaches 10% of the saturation level from 100% when OFF
signal is applied.
Note 4 : Definition of Driving Voltage V
D
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
D
is definded
as follows.
V
D
= (Vth1+Vth2) / 2
Vth1 : The volt age V
O-P
that should provide 50% of the satulation level in the luminance
measured atθ= 10ﾟ, φ=270ﾟon the segment which the ON signal is applied to.
Vth2 : The volt age V
O-P
that should provide 26% of the satulation level in the luminance
measured atθ= 40ﾟ, φ=270ﾟon the segment which the OFF signal is applied to.
VO-P
1 /
f
F
(
B-2
)
×
V
O-P
/ B
1 /
(
f
F
×
A
)
〈
OFF SIGNAL
〉
〈
ON SIGNAL
〉
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DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 6/14
OPTREX
3.3.Definition of Viewing Angle and Optimum Viewing Area
･
Point ● shows the point where contrast ratio is measured. : θ= 0ﾟ, φ=－ﾟ
･
Driving condition : 1/16 Duty, 1/5 Bias, V
D
=4.5V,
f
F
=90Hz
･
Area shows typ. CR≧2
3.4.System Block Diagram
0ﾟ
90ﾟ
180ﾟ
270ﾟ
θ
φ
270ﾟ
135ﾟ
315ﾟ
225
ﾟ
45ﾟ
180ﾟ
90ﾟ
θ
(φ= 0ﾟ）
φ
10 20 30 40 50
φ
Halogen bulb
Computer
Rotation Table (θ,φ)
Temperature Chamber
LCD
Optical Fiber
Waveform Generator
Control Unit &
#1980A WB
Photometer
θ
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DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 7/14
OPTREX
4.I/O Terminal
4.1.Pin Assignment
No. Symbol Level Function
1
V
SS
－
Supply Voltage 0V (GND)
2
V
CC
－
Supply Voltage +5V
3
V
EE
－
Supply Voltage (LCD Drive)
4
RS H / L Register Select Input
5
R/W H / L H : Read L : Write
6
E H, H→L Enable Signal (No pull-up Resister)
7
DB0 H / L Data Bus Line
8
DB1 H / L Data Bus Line Non-connection
9
DB2 H / L Data Bus Line at 4-bit operation
10
DB3 H / L Data Bus Line
11
DB4 H / L Data Bus Line
12
DB5 H / L Data Bus Line
13
DB6 H / L Data Bus Line
14
DB7 H / L Data Bus Line
4.2.Example of Power Supply
It is recommended to apply a potentiometer for the contrast adjust due to the tolerance of the
driving voltage and its temperature dependence.
ＭＯＤＵＬＥ
Ｖ
ＣＣ
Ｖ
ＳＳ
Ｖ
ＥＥ
ＶＣＣ
(+5V)
ＶＲ：１０～２０ＫΩ
ＧＮＤ
(0V)
ＶＲ
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DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 8/14
OPTREX
4.3.Block Diagram
～
E
RS
R/W
CONTROL LSI
or Equivalent
HD66702
L C D P
20 Characters × 2 Lines
DB7
DB0
SEG 100
COM 16
VEE
VCC
VSS
8
Page 9
DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 9/14
OPTREX
5.Test
No change on display and in operation under the following test condition.
No. Parameter Conditions Notes
1 High Temperature Operating 50
℃±2℃
, 96hrs (operation state)
2 Low Temperature Operating 0
℃±2℃
, 96hrs (operation state) 3
3 High Temperature Storage 60
℃±2℃
, 96hrs 4
4 Low Temperature Storage -20
℃±2℃
, 96hrs 3, 4
5 Damp Proof Test 40
℃±2℃
, 90～95%RH, 96hrs 3, 4
5 Damp Proof Test 60
℃±2℃
, 85～90%RH, 96hrs 3, 4
6 Vibration Test Total fixed amplitude : 1.5mm 5
Vibration Frequency : 10～55Hz
One cycle 60 seconds to 3 directions of X, Y, Z for
each 15 minutes
7 Shock Test To be measured after dropping from 60cm high on
the concrete surface in packing state.
Note 1 : Unless otherwise specified, tests will be conducted under the following condition.
Temperature : 20±5℃
Humidity : 65±5%
Note 2 : Unless otherwise specified, tests will be not conducted under functioning state.
Note 3 : No dew condensation to be observed.
Note 4 : The function test shall be conducted after 4 hours storage at the normal temperature and humidity
after removed from the test chamber.
Note 5 : Vibration test will be conducted to the product itself without putting it in a container.
E
A
G
D
C
F
60cm
Con crete Surface
Dropping method corner dropping
E,F,G face : once
B,C,D edge : once
A corner : once
Face dropping
Edge dropping
B
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DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 10/14
OPTREX
6.Appearance Standards
6.1.Inspection conditions
The LCD shall be inspected under 40W white fluorescent light.
The distance between the eyes and the sample shall be more than 30cm.
All directions for inspecting the sample should be within 45ﾟagainst perpendicular line.
6.2.Definition of applicable Zones
A Zone : Active display area
B Zone : Area from outside of "A Zone" to validity viewing area
C Zone : Rest parts
A Zone + B Zone = Validity viewing area
４５ﾟ
Ａ Ｚｏｎｅ
Ｂ Ｚｏｎｅ
Ｃ Ｚｏｎｅ
Bezel Flame
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DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 11/14
OPTREX
6.3.Standards
No. Parameter Criteria
1 Black and (1) Round Shape
White Spots, Zone Acceptable Number
Foreign Substances Dimension (mm) A B C
D ≦ 0.1 * * *
0.1
＜
D ≦ 0.2 5 5 *
0.2
＜
D ≦ 0.3 0 1 *
0.3
＜
D 0 0 *
D = ( Long + Short ) / 2 * : Disregard
(2) Line Shape
Zone Acceptable Number
X(mm) Y(mm) A B C
* 0.02≧W * * *
2.0≧L 0.03≧W 3 3 *
1.0≧L 0.04≧W 1 2 *
1.0≧L 0.05≧W 0 2 *
－ 0.05＜W In the same way (1)
X : Length Y : Width * : Disregard
Total defects shall not exceed 5.
2 Air Bubbles
(between glass Zone Acceptable Number
& polari zer) Dimension (mm) A B C
D ≦0.15 * * *
0.15＜ D ≦0.3 2 3 *
0.3
＜
D ≦0.5 1 2 *
0.5
＜
D ≦1.0 0 1 *
* : Disregard
Total defects shall not exceed 3.
Page 12
DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 12/14
OPTREX
No. Parameter Criteria
3 The Shape of Dot (1) Dot Shape (with Dent)
As per the sketch of left hand.
(2) Dot Shape (with Projection)
Should not be connected to next dot.
(3) Pin Hole
(X+Y)／2≦0.2mm
(Less than 0.1mm is no counted.)
Total defects shall not exceed 5.
4 Polarizer Scratches Not to be conspicuous defects.
5 Polarizer Dirts
If the stains are removed easily from LCDP surface, the module is not
defective.
6 Color Variation Not to be conspicuous defects.
0.15≧
Ｘ
Ｙ
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OPTREX
7.Code System of Production Lot
The production lot of module is specified as follows,
□
□ □ □ □ □
Factory number
Factory Code (Alphabet)
Production Week (1～5)
Producti on Month (1～9, X, Y, Z)
Production Year (Lower 2 digits)
8.Type Number
The type number of module is specified on the back of module as follows,
ＤＭＣ－５０２１８
Etching or Printing
9.Applying Precautions
To be discussed for solution, when questions arise concerning this specifications
or new problems not specified in this specifications arise.
Page 14
DMC-50218 (AA) No.98-0154 OPTREX CORPORATION Page 14/14
OPTREX
10.Handling Precautions
Optrex Products are designed for use in ordinary electronic devices such as business machines,
telecommunications equipment, measurement devices and etc..
Optrex Products are not designed, intended, or authorized for use in any application in which the
failure of the product could result in a situation where personal injury or death may occur. These
applications include, but are not limited to, life-sustaining equipment, nuclear control devices,
aerospace equipment, devices related to hazardous or flammable materials, etc. (If Buyer intends to
purchase or use the Optrex Products for such unintended or unauthorized applications, Buyer must
secure prior written consent to such use by a responsible officer of Optrex Corporation.) Should Buyer
purchase or use Optrex Products for any such unintended or unauthorized application (without such
consent), Buyer shall indemnify and hold Optrex and its officers, employees, subsidiaries, affiliates
and distributors harmless against all claims, costs, damages and expenses, and reasonable attorney's
fees, arising out of, directly or indirectly, any claim of personal injury or death associated with such
unintended or unauthorized use, even if such claim alleges that Optrex was negligent regarding the
design or manufacture of the part.
1) LCD may be broken because it is made of glass.
2) Polarizer is a soft material and can easily be scratched.
3) Please avoid static electricity.
①
Please be sure to ground human body and electric appliances during work.
②
It is preferable to use conductive mat on table and wear cotton clothes or conduction processed
fiber. Synthetic fiber is not recommended.
③
Please slowly peel off protective film, because static electricity may be charged.
4) If it is necessary to store LCD modules for a long time, please comply with the following
procedures. If storage condition is not satisfactory, display (especially polarizer) may be
deteriorated or soldering I/O terminals may become difficult (some oxide is generated at I/O
terminals plating).
①
Store as delivered by Optrex
②
If you store as unpacked, put in anti-static bag, seal its opening and store where it is not subjected
to direct sunshi ne nor fluorescent lamp.
③
Store at temperature 0 to +35℃ and at low humidity. Please refer to our specification sheets for
storage temperature range and humidity condition.
5) The module does not contain excess current limiter.
Please design the limiter to cut excess current in your power supply circuit.
6) The connection between the bezel and V
SS
(GND) is not specified in the module.
(Some module do not maintain connection between them.)
Please consult OPTREX to specify the connection.
7) Liquid crystal may be leaked when display is broken. Never taste it. If your hands or clothes touch
it, please immediately wash using soap.
Optrex shall not be responsible for any infringement of industrial property rights of third parties in any
country arising out of the application or use of Optrex Products, except which directly concern the
structure or production of such products.
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