DMF-682AN-EW - Optrex Corporation

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

Approved by

Production Div.

Design Engineering Div.

Prepared by

LCD Module Specification

DMF682AN–EW

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. 0˚C ~ max. 50˚C

Storage Temp. : min. -20˚C ~ max. 60˚C

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 Page 3/17

OPTREX

2. Electrical Specifications

2.1. Absolute Maximum Ratings VSS=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˚C, VSS=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 – VDD 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 – VDD V

Low Level

Output Voltage

VOL IOL=0.2mA 0 – 0.4 V

Supply Current

IDD VDD-VSS=5.0V – 3.6 20.0 mA

IEE VDD-VEE=13.1V – 2.9 15.0 mA

Clock Frequency fCP Duty=50% – – 3.4 MHz

DMF682AN-EW (AB) No.97-0085 OPTREX CORPORATION Page 4/17

OPTREX

2.3. AC Characteristics VDD=5.0V±10%

Parameter Symbol Min. Max. Units

Clock Pulse Width tWC 100 – ns

Latch Pulse High Level Width tWL 125 – ns

Clock Pulse Rise/Fall Time tr, tf – 50 ns

CP→LP Rise Time tCL 63 – ns

CP→LP Fall Time tLSU2 90 – ns

LP→CP Rise Time tLSU1 90 – ns

LP→CP Fall Time tLC 63 – ns

Data Setup Time tDSU 50 – ns

Data Hold Time tDHD 80 – ns

FLM Data Setup Time tSETUP 100 – ns

FLM Data Hold Time tHOLD 100 – ns

tHOLD

tSETUP

trtftDHD

tDSU

tWC

tLC

tLSU2

tCL tLSU1

FLM

D0~D3

tWL

tWC

DMF682AN-EW (AB) No.97-0085 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)

FLM

#1 + #65 DATA

SEGSEG SEGSEG SEGSEG SEGSEG

512508 84 512508 84

509~505~ 5~ 1~509~

505~

5~ 1~

SEG1 SEG256

#65

#64

#128

D2D3

D0~D3

SEG257 SEG512

D0D1 D0D1

D2D3 D0D1 D0D1

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

VDD

VSS

VDD

DISPOFF

VEE

VDD

0 ≤ t

SIGNAL

LEVEL

VDD

0 ≤ t

VDD

VSS

VEE

VSS

VDD

VSS

VDD

DISPOFF

VEE

VDD

0 ≤ t

SIGNAL

LEVEL

VDD

0 ≤ t

DMF682AN-EW (AB) No.97-0085 OPTREX CORPORATION Page 7/17

OPTREX

2.7. Lighting Specifications

2.7.1. Absolute Maximum Rating Ta=25˚C

Parameter Conditions Min. Typ. Max. Units

Input Voltage – – – 150 Vrms

Input Frequency AC 100Vrms – – 800 Hz

2.7.2. Operating Characteristics Ta=25˚C

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/m2

Life AC 100Vrms, 400Hz

Ta=20˚C, 60%RH

1800 – – hrs

DMF682AN-EW (AB) No.97-0085 OPTREX CORPORATION Page 8/17

OPTREX

3. Optical Specifications

3.1. LCD Driving Voltage

Parameter Symbol Conditions Min. Typ. Max. Units

Recommended Ta= 0˚C – – 15.4 V

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

Note 1 Ta=50˚C 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˚C, 1/64 Duty, 1/8.8 Bias, VD=13.1V (Note 4), θ= 0˚, φ= –˚

Parameter Symbol Conditions Min. Typ. Max. Units

Contrast Ratio Note 1 CR θ= 0˚, φ= –˚ – 3 –

Viewing Angle Shown in 3.3

Response Rise Note 2 τ r – – 120 200 ms

Time Decay Note 3 τ d – – 200 300 ms

Note 1 : Contrast ratio is definded as follows.

CR = LOFF / LON

LON : Luminance of the ON segments

LOFF : 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 VD

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 VD is definded

as follows.

VD = (Vth1+Vth2) / 2

Vth1 :The voltage VO-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 VO-P that should provide 50% of the satulation level in the luminance at

the segment which the OFF signal is applied to.

VO-P

1 / fF

( B-2 ) ×VO-P / B

1 / ( fF×A )

(OFF SIGNAL)

(ON SIGNAL)

DMF682AN-EW (AB) No.97-0085 OPTREX CORPORATION Page 9/17

OPTREX

3.3. Definition of Viewing Angle and Optimum Viewing Area

•Point ● shows the point where contrast ratio is measured. : θ= 0˚, φ= –˚

•Driving condition : 1/64 Duty, 1/8.8 Bias, VD=13.1V, fF=70Hz

•Area shows typ. CR≥2

3.4. System Block Diagram

0˚

90˚

180˚

270˚

135˚

315˚225˚

45˚

180˚

90˚

θ(φ= 0˚)

10 20 30 40 50

Halogen bulb

Computer

Rotation Table (θ,φ)

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 VDD – Power Supply for Logic

2 VSS – Power Supply (0V, GND)

3 VEE – 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

7NC – Non-connection

8FLM H / L First Line Marker

9 CP H→LClock 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 Ω

VSS (0V)

DMF682AN-EW (AB) No.97-0085 OPTREX CORPORATION Page 11/17

OPTREX

4.3. Block Diagram

VEE

VSS

VDD

D0~D3

FLM

DISPOFF

or equivalent

MSM5298 × 1

Row Driver

or equivalent

MSM5299 × 4

Column Driver

L C D P

256

256 × 128 dots

To LSIBias Circuit

EL Backlight

or equivalent

MSM5299 × 3

Column Driver

240

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

1High Temperature Operating 50˚C±2˚C, 96hrs (operation state)

2Low Temperature Operating 0˚C±2˚C, 96hrs (operation state) 3

3High Temperature Storage 60˚C±2˚C, 96hrs 4

4Low Temperature Storage -20˚C±2˚C, 96hrs 3, 4

5 Damp Proof Test 40˚C±2˚C, 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˚C

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.

GDC

60cm

Concrete Surface

Dropping method corner dropping

E,F,G face : once

B,C,D edge : once

A corner : once

Face dropping

Edge dropping

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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˚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˚

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.

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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.)

4Polarizer Scratches Refer to the sample.

5Polarizer Dirts If the stains are removed easily from LCDP surface, the module is not

defective.

6Complex Foreign Black spots, line shaped foreign substances or air bubbles between

Substance Defects glass & polarizer should be 5pcs maximum in total.

Distance between

D≤0.2 : 20mm or more

Different Foreign 0.2<D : 40mm or more

Substance Defects

0.15≥

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 N–EW

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.

①Please be sure to ground human body and electric appliances during work.

②It is preferable to use conductive mat on table and wear cotton clothes or conduction processed fiber.

Synthetic fiber is not recommended.

③Please 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).

①Store as delivered by Optrex

②If 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.

③Store at temperature 0 to +35˚C 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 VSS (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.