DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 1/17
OPTREX
Type No.
*******
April 9, 1997
First Edition
Final Revision
Quality Assurance Div.
Production Div.
Checked by
Checked by
Approved by
Production Div.
Design Engineering Div.
Prepared by
LCD Module Specification
DMF682ANEW
Table of Contents
1. General Specifications.................................................................2
2. Electrical Specifications...............................................................3
3. Optical Specifications..................................................................8
4. I/O Terminal............................................................................10
5. Test........................................................................................12
6. Appearance Standards................................................................13
7. Code System of Production Lot................................................16
8. Type Number...........................................................................16
9. Applying Precautions................................................................16
10. Handling Precautions................................................................17
Revision History
Rev.
Date
Page
Comment
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 2/17
OPTREX
1. General Specifications
Operating Temp.
:
min. 0C ~ max. 50C
Storage Temp.
:
min. -20C ~ max. 60C
Dot Pixels
:
256 (W)
128 (H) dots
Dot Size
:
0.43 (W)
0.43 (H) mm
Dot Pitch
:
0.47 (W)
0.47 (H) mm
Viewing Area
:
127.0 (W)
70.0 (H) mm
Outline Dimensions
:
147.0 (W)
116.0 (H)
12.0 max. (D) mm
Weight
:
240g max.
LCD Type
:
NSD-7451
( STN / Neutral-mode / Transflective )
Viewing Angle
:
6:00
Data Transfer
:
4-bit parallel data transfer
Backlight
:
Electro Luminescence (EL) / White
Drawings
:
Dimensional Outline
UE-34760
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
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OPTREX
2. Electrical Specifications
2.1. Absolute Maximum Ratings
V
SS
=0V
Parameter
Symbol
Conditions
Min.
Max.
Units
Supply Voltage
(Logic)
V
DD
-V
SS
-0.3
6.0
V
Supply Voltage
(LCD Drive)
V
DD
-V
EE
0
30.0
V
Input Voltage
V
I
-0.3
V
DD
+0.3
V
2.2. DC Characteristics
Ta=25C, V
SS
=0V
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Supply Voltage
(Logic)
V
DD
-V
SS
4.5
5.5
V
Supply Voltage
(LCD Drive)
V
DD
-V
EE
Shown in 3.1
V
High Level
Input Voltage
V
IH
V
DD
=5.0V10%
0.8
V
DD
V
DD
V
Low Level
Input Voltage
V
IL
V
DD
=5.0V10%
0
0.2
V
DD
V
High Level
Output Voltage
V
OH
I
OH
=-0.2mA
V
DD
-0.4
V
DD
V
Low Level
Output Voltage
V
OL
I
OL
=0.2mA
0
0.4
V
Supply Current
I
DD
V
DD
-V
SS
=5.0V
3.6
20.0
mA
I
EE
V
DD
-V
EE
=13.1V
2.9
15.0
mA
Clock Frequency
f
CP
Duty=50%
3.4
MHz
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
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OPTREX
2.3. AC Characteristics
V
DD
=5.0V10%
Parameter
Symbol
Min.
Max.
Units
Clock Pulse Width
t
WC
100
ns
Latch Pulse High Level Width
t
WL
125
ns
Clock Pulse Rise/Fall Time
t
r,
t
f
50
ns
CP
LP Rise Time
t
CL
63
ns
CP
LP Fall Time
t
LSU2
90
ns
LP
CP Rise Time
t
LSU1
90
ns
LP
CP Fall Time
t
LC
63
ns
Data Setup Time
t
DSU
50
ns
Data Hold Time
t
DHD
80
ns
FLM Data Setup Time
t
SETUP
100
ns
FLM Data Hold Time
t
HOLD
100
ns
t
HOLD
t
SETUP
t
r
t
f
t
DHD
t
DSU
t
WC
t
LC
t
LSU2
CP
t
CL
t
LSU1
LP
FLM
D0~D3
t
WL
t
WC
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
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OPTREX
2.4. Timing Chart
2.5. Comparison of Display and Data
T=0.223ms typ.
64
T
FLM
(Reduction)
(Reduction)
LP
FLM
M
D3
D0
CP
LP
#1 + #65 DATA
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
512
508
8
4
512
508
8
4
509
~
505
~
5
~
1
~
509
~
505
~
5
~
1
~
SEG1
SEG256
#65
#1
#64
#128
D2
D3
D0~D3
D0~D3
SEG257
SEG512
D0
D1
D0
D1
D2
D3
D0
D1
D0
D1
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 6/17
OPTREX
2.6. Power Supply ON/OFF Sequence
2.6.1. ON Sequence
2.6.2. OFF Sequence
Please maintain the above sequence when turning on and off the power supply of the module.
If DISPOFF is supplied to the module while alternate signal for LCD driving (M) is unstable,
DC component will be supplied to the LCD panel. This may cause damage the LCD module.
VDD
VSS
VEE
VSS
VSS
VDD
VSS
VDD
DISPOFF
VEE
VDD
0
t
0
t
SIGNAL
SIGNAL
LEVEL
VDD
0
t
VDD
VSS
VEE
VSS
VSS
VDD
VSS
VDD
DISPOFF
VEE
VDD
0
t
0
t
SIGNAL
SIGNAL
LEVEL
VDD
0
t
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
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OPTREX
2.7. Lighting Specifications
2.7.1. Absolute Maximum Rating
Ta=25C
Parameter
Conditions
Min.
Typ.
Max.
Units
Input Voltage
150
Vrms
Input Frequency
AC 100Vrms
800
Hz
2.7.2. Operating Characteristics
Ta=25C
Parameter
Conditions
Min.
Typ.
Max.
Units
Input Voltage
100
Vrms
Input Frequency
400
Hz
Current
AC 100Vrms, 400Hz
11.3
14.4
mA
Luminance of
Backlight Surface
AC 100Vrms, 400Hz
54
72
cd/m
2
Life
AC 100Vrms, 400Hz
Ta=20C, 60%RH
1800
hrs
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
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OPTREX
3. Optical Specifications
3.1. LCD Driving Voltage
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Recommended
Ta= 0C
15.4
V
LCD Driving Voltage
V
DD
-V
EE
Ta=25C
12.2
13.1
14.0
V
Note 1
Ta=50C
10.4
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=25C, 1/64 Duty, 1/8.8 Bias, V
D
=13.1V (Note 4),
= 0,
=
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Contrast Ratio
Note 1
CR
= 0,
=
3
Viewing Angle
Shown in 3.3
Response
Rise
Note 2
r
120
200
ms
Time
Decay
Note 3
d
200
300
ms
Note 1 : Contrast ratio is definded as follows.
CR = L
OFF
/ L
ON
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 voltage V
O-P
that should provide 50% of the satulation level in the luminance at
the segment which the ON signal is applied to.
Vth2 :The voltage V
O-P
that should provide 50% of the satulation level in the luminance at
the segment which the OFF signal is applied to.
V
O-P
1 /
f
F
( B-2 )
V
O-P
/ B
1 / (
f
F
A )
(OFF SIGNAL)
(ON SIGNAL)
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
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OPTREX
3.3. Definition of Viewing Angle and Optimum Viewing Area
Point q shows the point where contrast ratio is measured. :
= 0,
=
Driving condition : 1/64 Duty, 1/8.8 Bias, V
D
=13.1V,
f
F
=70Hz
Area shows typ. CR
2
3.4. System Block Diagram
0
90
180
270
270
135
315
225
45
180
90
(
= 0)
10
20
30
40
50
Halogen bulb
Computer
Rotation Table (
,
)
Temperature Chamber
LCD
Optical Fiber
Waveform Generator
Control Unit &
#1980A WB
Photometer
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 10/17
OPTREX
4. I/O Terminal
4.1. Pin Assignment
No.
Symbol
Level
Function
1
V
DD
Power Supply for Logic
2
V
SS
Power Supply (0V, GND)
3
V
EE
Power Supply for LCD Drive
4
LP
H
L
Data Latch Signal
5
M
H / L
Alternate Signal for LCD Drive
6
DISPOFF
H / L
Display Control Signal H : Display on L : Display off
7
NC
Non-connection
8
FLM
H / L
First Line Marker
9
CP
H
L
Clock Signal for Shifting Data
10
NC
Non-connection
11
D0
H / L
Display Data
12
D1
H / L
Display Data
13
D2
H / L
Display Data
14
D3
H / L
Display Data
15
EL
Power Supply for EL
16
EL
Power Supply for EL
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.
VSS
MODULE
VEE
VDD
VEE (-Voltage)
VDD (+Voltage)
Tr=2SA1202 or equivalent
R1+R2+VR=10~20 K
VSS (0V)
R2
R1
VR
Tr
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 11/17
OPTREX
4.3. Block Diagram
EL
EL
VEE
VSS
VDD
D0~D3
FLM
M
LP
DISPOFF
CP
or equivalent
MSM5298
1
Row Driver
or equivalent
MSM5299
4
Column Driver
L C D P
256
64
4
256
128 dots
To LSI
Bias Circuit
EL Backlight
or equivalent
MSM5299
3
Column Driver
240
64
4
16
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 12/17
OPTREX
5. Test
No change on display and in operation under the following test condition.
No.
Parameter
Conditions
Notes
1
High Temperature Operating
50C2C, 96hrs (operation state)
2
Low Temperature Operating
0C2C, 96hrs (operation state)
3
3
High Temperature Storage
60C2C, 96hrs
4
4
Low Temperature Storage
-20C2C, 96hrs
3, 4
5
Damp Proof Test
40C2C, 90~95%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 : 205C
Humidity
: 655%
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
Concrete Surface
Dropping method corner dropping
E,F,G face : once
B,C,D edge : once
A corner : once
Face dropping
Edge dropping
B
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 13/17
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 45against 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
A Zone
B Zone
C Zone
Bezel Flame
45
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 14/17
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
3
5
*
0.2 < D
0.25
2
3
*
0.25< 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
0.03
W
*
*
*
2.0
L
0.05
W
3
3
*
1.0
L
0.1
W
3
3
*
0.1 <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
& polarizer)
Dimension (mm)
A
B
C
D
0.3
*
*
*
0.3 < D
0.4
3
*
*
0.4 < D
0.6
2
3
*
0.6 < D
0
0
*
* : Disregard
Total defects shall not exceed 3.
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 15/17
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.)
(4) Deformation
(X+Y) / 2
0.2mm
Total acceptable number : 1/dot, 5/cell
(Defect number of (4) : 1pc.)
4
Polarizer Scratches
Refer to the sample.
5
Polarizer Dirts
If the stains are removed easily from LCDP surface, the module is not
defective.
6
Complex Foreign
Black spots, line shaped foreign substances or air bubbles between
Substance Defects
glass & polarizer should be 5pcs maximum in total.
7
Distance between
D
0.2 : 20mm or more
Different Foreign
0.2<D : 40mm or more
Substance Defects
0.15
Y
X
X
Y
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 16/17
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)
Production 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 :
DMF682A NEW
Stamp
Etching or Printing
9. Applying Precautions
Please contact us when questions and/or new problems not specified in this specifications arise.
DMF682AN-EW (AB) No.97-0085
OPTREX CORPORATION
Page 17/17
OPTREX
10. Handling Precautions
Operex 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.
x
Please be sure to ground human body and electric appliances during work.
y
It is preferable to use conductive mat on table and wear cotton clothes or conduction processed fiber.
Synthetic fiber is not recommended.
z
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).
x
Store as delivered by Optrex
y
If you store as unpacked, put in anti-static bag, seal its opening and store where it is not subjected
to direct sunshine nor fluorescent lamp.
z
Store at temperature 0 to +35C 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) Liquid crystal may be leaked when display is broken. Never taste it. If your hands or clothes touch it,
please immediately wash using soap.
7) 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.
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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