Datasheet DMF682AN Datasheet (OPTREX)

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 1/17

OPTREX

Type No.

*******

Mar 6, 2000

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

ＤＭＦ６８２ＡＮ

ＤＭＦ６８２ＡＮＤＭＦ６８２ＡＮ

ＤＭＦ６８２ＡＮ

Table of Contents

1. General Specifications .............................................................................2

2. Electrical Specifications...........................................................................3

3. Optical Specifications..............................................................................7

4. I/O Terminal.............................................................................................9

5. Test..........................................................................................................11

6. Appearance Standards............................................................................12

7. Code System of Production Lot ..........................................................15

8. Type Number..........................................................................................15

9. Applying Precautions .............................................................................15

10. Precautions Relating Product Handling................................................16

11. Warranty..................................................................................................17

Revision History

Rev. Date Page Comment

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 2/17

OPTREX

1. General Specifications

Operating Temp.

：

min. 0℃ ～ max. 50℃

Storage Temp.

：

min. -20℃ ～ max. 60℃

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

W eight

：

160g max.

LCD Type

：

NRD-7451

( STN / Neutral-mode / Reflective )

Viewing Angle

：

6:00

Data Transfer

：

4-bit parallel data transfer

Backlight

：

None

Drawings

：

Dimensional Outline UE-34758A

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 3/17

OPTREX

2.Electrical Specifications

2.1.Absolute Maximum Ratings

V

SS

=0V

Parameter Symbol Conditions Min. Max. Units

Supply Voltage

(Logic)

VDD-VSS

－

-0.3 6.0 V

Supply Voltage

(LCD Drive)

VDD-VEE

－

0 30.0 V

Input Voltage VI

－

-0.3 VDD+0.3 V

2.2.DC Characteristics

Ta=25℃, V

SS

=0V

Parameter Symbol Conditions Min. Typ. Max. Units

Supply Voltage

(Logic)

VDD-VSS

－

4.5 － 5.5 V

Supply Voltage

(LCD Drive)

VDD-VEE Shown in 3.1 V

High Level

Input Voltage

VIH VDD=5.0V±10% 0.8×VDD

－

V

DD

V

Low Level

Input Voltage

VIL VDD=5.0V±10% 0 － 0.2×VDD V

High Level

Output Voltage

VOH IOH=-0.2mA VDD-0.4

－

－

V

Low Level

Output Voltage

VOL IOL=0.2mA

－

－

0.4 V

Supply Current

IDD VDD-VSS=5.0V

－

3.6 20 mA

I

EE

VDD-VEE=13.1V

－

2.9 15 mA

Clock Frequency

f

CP

Duty=50%

－

－

3.4 MHz

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 4/17

OPTREX

2.3.AC Characteristics

V

DD

=5.0V±10%

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, tf

－

50 ns

CP→LP Fall Time

t

LSU2

90 － ns

LP→CP Fall Time

t

LC

200 － 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

LP

FLM

D0～D3

t

WL

t

WC

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 5/17

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

SEGSEG SEGSEG SEGSEG SEGSEG

512508 84512508 84

509

～

505

～

5

～

1

～

509

～

505

～

5

～

1

～

SEG1 SEG256

#65

#1

#64

#128

D2D3

D0～D3

D0～D3

SEG257 SEG512

D0D1 D0D1

D2D3 D0D1 D0D1

DMF682AN (AA) No.2000-0053 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

w

hile internal 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 (AA) No.2000-0053 OPTREX CORPORATION Page 7/17

OPTREX

3.Optical Specifications

3.1.LCD Driving Voltage

Parameter Symbol Conditions Min. Typ. Max. Units

Recommended Ta= 0℃

－

－

15.4 V

LCD Driving Voltage VDD-VEE Ta=25℃ 12.2 13.1 14.0 V

Note 1 Ta=50℃ 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=25℃, 1/64 Duty, 1/8.8 Bias, V

D

=13.1V (Note 4), θ= 0ﾟ, φ=－ﾟ

Parameter Symbol Conditions Min. Typ. Max. Units

Contrast Ratio Note 1 CR

θ

= 0ﾟ, φ=－ﾟ

－

7 －
Viewing Angle Shown in 3.3
Response Rise Note 2 TON

－

－

140 210 ms

Time Decay Note 3 T

OFF

－

－

180 270 ms

Note 1 : Contrast ratio is definded as follows.

CR = L

OFF

/ LON

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 saturation level in the luminance at

the segment which the ON signal is applied to.

Vth2 : The volt age V

O-P

that should provide 50% of the saturation level in the luminance at

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

〉

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 8/17

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 : 1/64 Duty, 1/8.8 Bias, V

D

=13.1V,

f

F

=70Hz

･

Area shows typ. CR≧2

3.4.System Block Diagram

270 ﾟ

0 ﾟ

90 ﾟ

180 ﾟ

270 ﾟ

θ

φ

135 ﾟ

315

ﾟ

225 ﾟ

45 ﾟ

180 ﾟ

90 ﾟ

(φ= 0 ﾟ）

φ

10 20 30 40 50

θ

φ

Halogen bulb

Computer

Rotation Table (θ,φ)

Temperature Chamber

LCD

Optical Fiber

Waveform Generator

Control Unit &

#1980A WB

Photometer

θ

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 9/17

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

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=10～20K

Ω

VSS (0V)

R2

R1

VR

Tr

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 10/17

OPTREX

4.3.Block Diagram

VEE

VSS

VDD

D0～D3

FLM

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 LSIBias Circuit

or equivalent

MSM5299 × 3

Column Driver

240

64

4

M

16

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 11/17

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
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

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 12/17

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 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

A Zone
B Zone

C Zone

Bezel Flame

45

ﾟ

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 13/17

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
& polari zer) 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 (AA) No.2000-0053 OPTREX CORPORATION Page 14/17

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 Not to be conspicuous defects.
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 (AA) No.2000-0053 OPTREX CORPORATION Page 15/17

OPTREX

7.Code System of Production Lot

The production lot of module is specified as follows.

□

□

□ □ □ □

Factory Number (Numeral)

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.

ＤＭＦ６８２Ａ

Ｎ

Stamp

Etching or Printing

9.Applying Precautions

Please contact us when questions and/or new problems not specified in this specifications arise.

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 16/17

OPTREX

10.Precautions Relating Product Handling

The Following precautions will guide you in handling our product correctly.

1) Liquid crystal display devices

①

The liquid crystal display device panel used in the liquid crystal display module is made of plate

glass. Avoid any strong mechanical shock. Should the glass break handle it with care.

②

The polarizer adhering to the surface of the LCD is made of a soft material.

Guard against scratching it.

2) Care of the liquid crystal display module against static electricity discharge.

①

When working with the module, be sure to ground your body and any electrical equipment you may
be using. We strongly recommend the use of anti static mats ( made of rubber ), to protect work
tables against the hazards of electrical shock.

②

Avoid t he use of work clothing made of synthetic fibers . We recommend cotton clothing or other
conductivity-treated fibers.

③

Slowly and carefully remove the protective film from the LCD module, since this operation can
generate static electricity.

3) When the LCD module alone must be stored for long periods of time:

①

Protect the modules from high temperature and humidity.

②

Keep the modules out of direct sunlight or direct exposure to ultraviolet rays.

③

Protect the modules from excessive external forces.

4) Use the module with a power supply that is equipped with an overcurrent protector circuit,
since the module is not provided with this protective feature.

5) Do not ingest the LCD fluid itself should it leak out of a damaged LCD module. Should hands
or clothing come in contact with LCD fluid, wash immediately with soap.

6) Conduc1tivity is not guaranteed for models that use metal holders where solder connections
between the metal holder and the PCB are not used. Please contact us to discuss appropriate
ways to assure conductivity.

7) For models which use CFL:

①

High voltage of 1000V or greater is applied to the CFL cable connector area.
Care should be taken not to touch connection areas to avoid burns.

②

Protect CFL cables from rubbing against the unit and thus causing the wire jacket to become worn.

③

The use of CFLs for extended periods of time at low temperatures will significantly shorten their
service life.

DMF682AN (AA) No.2000-0053 OPTREX CORPORATION Page 17/17

OPTREX

8) For models which use touch panels:

①

Do not stack up modules since they can be damaged by components on neighboring modules.

②

Do not place heavy objects on top of the product. This could cause glass breakage.

9) For models which use COG,TAB,or COF:

①

The mechanical strength of the product is low since the IC chip faces out unprotected from the rear.
Be sure to protect the rear of the IC chip from external forces.

②

Given the fact that the rear of the IC chip is left exposed, in order to protect the unit from electrical
damage, avoid installation configurations in which the rear of the IC chip runs the risk of making
any electrical contact.

10) Models which use flexible cable, heat seal, or TAB:

①

In order to maintain reliability, do not touch or hold by the connector area.

②

Avoid any bending, pulling, or other excessive force, which can result in broken connections.

11.Warranty

This product has been manufactured to your company’s specifications as a part for use in your company’s
general electronic products. It is guaranteed to perform according to delivery specifications. For any other
use apart from general electronic equipment, we cannot take responsibility if the product is used in medical
devices, nuclear power control equipment, aerospace equipment, fire and security systems, or any other
applications in which there is a direct risk to human life and where extremely high levels of reliability are
required. If the product is to be used in any of the above applications, we will need to enter into a separate
product liability agreement.

①

We cannot accept responsibility for any defect, which may arise from additional manufacturing of
the product (including disassembly and reassembly), after product delivery.

②

We cannot accept responsibility for any defect, which may arise after the application of strong
external force to the product.

③

We cannot accept responsibility for any defect, which may arise due to the application of static
electricity after the product has passed your company’s acceptance inspection procedures.

④

When the product is in CFL models, CFL service life and brightness will vary according to the
performance of the inverter used, leaks, etc. We cannot accept responsibility for product
performance, reliability, or defect, which may arise.

⑤

We cannot accept responsibility for intellectual property of a third party, which may arise through the

application of our product to your assembly with exception to those issues relating directly to the
structure or method of manufacturing of our product.

⑥

Optrex will not be held responsible for any quality guarantee issue for defect products judged as
Optrex-origin longer than 2 (two) years from Optrex production or 1(one) year from Optrex, Optrex
America, Optrex Europe, Display LC delivery which ever comes later.