Datasheet DMF-50840NF-FW Datasheet (OPTREX)

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 1/18

OPTREX

Type No.

*******

Jun 7, 1999

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

ＤＭＦ－５０８４０ＮＦ－ＦＷ

ＤＭＦ－５０８４０ＮＦ－ＦＷＤＭＦ－５０８４０ＮＦ－ＦＷ

ＤＭＦ－５０８４０ＮＦ－ＦＷ

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. Precautions Relating Product Handling................................................17

11. Warranty..................................................................................................18

Revision History

Rev. Date Page Comment

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 2/18

OPTREX

1.General Specifications

Operating Temp.

：

min. 0℃ ～ max. 50℃

Storage Temp.

：

min. -20℃ ～ max. 60℃

Dot Pixels

：

320 (W) × 240 (H) dots

Dot Size

：

0.33 (W) × 0.33 (H) mm

Dot Pitch

：

0.36 (W) × 0.36 (H) mm

Viewing Area

：

120.0 (W) × 90.0 (H) mm

Outline Dimensions

：

167.1 (W) × 109.0

*1

(H) × 11.0 max. *2(D) mm
*1 Without Connector
*2 Without CFL Cable

W eight

：

230g max.

LCD Type

：

NTD-15885

( F-STN / Black

&White-mode / Transmissive )

Viewing Angle

：

6:00

Data Transfer

：

4-bit parallel data transfer

Backlight

：

Cold Cathode Fluorescent Lamp (CFL) × 1

Drawings

：

Dimensional Outline UE-36988

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 3/18

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 35.0 V

Input Voltage VI

－

-0.3 VCC+0.3 V

2.2.DC 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

VCC-VEE

－

26.0 － 30.0 V

(LCD Drive) VCC-V

ADJ

Shown in 3.1 V

High Level

Input Voltage

VIH VCC=5.0V±10% 0.8×VCC

－

V

CC

V

Low Level

Input Voltage

VIL VCC=5.0V±10% 0 － 0.2×VCC V

Supply Current

ICC VCC-VSS=5.0V

－

5.5 15.0 mA

I

EE

VCC-V

ADJ

=23.1V

－

5.0 10.0 mA

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 4/18

OPTREX

2.3.AC Characteristics

V

CC

=5.0V±10%

Parameter Symbol Min. Max. Units

CP Frequency

f

CP

－

6.0 MHz

Clock Pulse Width

t

WC

50 － ns

Load Pulse Width

t

WL

63 － ns

Data Setup Time

t

SETUP

30 － ns

Data Hold Time

t

HOLD

30 － ns

Clock Pulse Setup Time

t

CL

80 － ns

Clock Pulse Hold Time

t

LC

110 － ns

Rise/Fall Time

t

r, tf

－

Note 1 ns

FLM Setup Time

t

FDS

100 － ns

FLM Hold Time

t

FDH

100 － ns

Note 1:The rise and fall times (tr, tf ) must satisfy the following relationships (①and ②).

－

t

WC

②

t

r, tf＜ 50 ns

This module contain these capacitors. Please be careful about timing characteristics.

1

①

t

r, tf

＜

1000pF

1000pF

470pF

FLM

LP

VSS

M

2fCP

t

r

t

f

t

f

t

HOLD

t

SETUP

t

WC

t

LC

t

CL

CP

LOAD

DI 0～DI 3

t

WL

t

WC

t

r

t

FDH

t

FDS

FLM

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 5/18

OPTREX

2.4.Timing Chart

2.5.Comparison of Display and Data

T=0.0556ms typ.

240×T

FLM

LP

FLM

D3

D0

CP

LP

～

#1 DATA

SEGSEG SEGSEG SEGSEG SEGSEG

320316 84320316 84

317～313～ 5～ 1～ 317～313～ 5～ 1～

(Reduction)

(Reduction)

SEG1 SEG320

#1

#240

D2D3

D0～D3

TOP VIEW

D0D1 D0D1

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 6/18

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.

VCC

VSS

VEE

VSS

VSS

VCC

VSS

DISPOFF

VCC

VCC

VEE

0≦t

SIGNAL

0≦t

SIGNAL

VCC

LEVEL

0≦t

VADJ

VADJ

VCC

VSS

VEE

VSS

VSS

VCC

VSS

DISPOFF

VCC

VCC

VEE

0≦t

SIGNAL

0≦t

SIGNAL

VCC

LEVEL

0≦t

VADJ

VADJ

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 7/18

OPTREX

2.7.Lighting Specifications

Ta=25℃

Parameter Symbol Conditions Min. Typ. Max. Units Notes

Lamp Voltage VL

－

－

340 － Vrms 1

Lamp Current IL

－

3.0 4.0 5.0 mArms 2

Starting Voltage VS

－

850 －

－

Vrms 3

Surface Luminance L IL=4.0mA

－

50 － cd/㎡ 4

Average Life TAL I

L

=4.0mA 25000 －

－

hrs 5

Brightne Ratio B IL=4.0mA 70 －

－

%

Note 1 : The voltage ( r.m.s. ) to maintain the electric discharge of the lamp. It is measured after lighting for

3 minutes .

Note 2 : The current ( r.m.s. ) to flow through the lamp with the electric discharge. It i s mea s ured after

lighting for 3 minutes .

Note 3 : The voltage at starting the electric discharge when the voltage is increased gradually from 0V.
Note 4 : Surface Luminance is specified by the average of 9 luminance values measured at each point

shown above after 20 minutes power on with the all ON pattern adjusted to maximum contrast and
the dimming control of 100%. ( maximum brightness )

Note 5 : CFL life is defined as the time for which the initial luminance is attenuated by 50% of the

luminance value. Average Life representes the time elapsed at the point of time when the residual
ratio becomes below 50% when plural lamps are lighted in comparison with the definition of life
mentioned above.

Recommended Inverter : S-12561 ( Produced by ELEVAM )

CXA-L10L (DC 12.0V, Produced by TDK)

V

N

I

CFL Testing Circuit

L

F

C

VS VL

IL

Measurement Points

P7

P4

P1

X=120

X=60

X=180

Y=260Y=160Y=60

P8

P5

P2

P9

P6

P3

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 8/18

OPTREX

3.Optical Specifications

3.1.LCD Driving Voltage

Parameter Symbol Conditions Min. Typ. Max. Units

Recommended Ta= 0℃

－

－

26.1 V

LCD Driving Voltage VCC-V

ADJ

Ta=25℃ 21.5 23.1 24.7 V

Note 1 Ta=50℃ 20.4 －

－

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℃, 1/240Duty, 1/14Bias, V

D

=22.5V (Note 4), θ= 0ﾟ, φ=－ﾟ

Parameter Symbol Conditions Min. Typ. Max. Units

Contrast Ratio Note 1 CR

θ

= 0ﾟ, φ=－ﾟ

－

15 －
Viewing Angle Shown in 3.3
Response Rise Note 2 TON

－

－

420 630 ms

Time Decay Note 3 T

OFF

－

－

210 430 ms

Note 1 : Contrast ratio is definded as follows.

CR = L

ON

/ 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

VD=VCC-V

ADJ-VBE

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 the voltage V

O-P

when the contrast ratio (CR=LON / L

OFF

) is at its maximum.

V

O-P

1 /

f

F

(

B-2

)

×

V

O-P

/ B

1 /

(

f

F

×

A

)

〈

OFF SIGNAL

〉

〈

ON SIGNAL

〉

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 9/18

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 : 1/240Duty, 1/14Bias, V

D

=22.5V,

f

F

=75Hz

･

Area shows typ. CR≧2

3.4.System Block Diagram

φ

Halogen bulb

Computer

Rotation Table (θ,φ)

Temperature Chamber

LCD

Optical Fiber

Waveform Generator

Control Unit &

#1980A WB

Photometer

θ

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

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 10/18

OPTREX

4.I/O Terminal

4.1.Pin Assignment

CN1

No. Symbol Level Function

1

D0 H / L Display Data

2

D1 H / L Display Data

3

D2 H / L Display Data

4

D3 H / L Display Data

5

DISPOFF H / L H : Display on L : Display off (Pull up Resister)

6

FLM H / L First Line Marker

7

NC － Non-connection

8

LP H→L Data Latch Signal

9

CP H→L Clock Signal for Shifting Data

10

V

CC

―

Power Supply for Logic

11

V

SS

―

Power Supply (0V, GND)

12

V

EE

―

Power Supply for LCD Drive

13

V

ADJ

―

Voltage Level for LCD Contrast Adjustment

14

FG － Frame Ground

CN2

No. Symbol Level Function

5 CFL HOT － Power Supply for CFL (HOT)
6 NC － Non-connection
7 NC － Non-connection
8 CFL GND － Power Supply for CFL (GND)

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

VADJ

VCC

VEE

VSS VSS (0V)

VCC (+Voltage)

R1+R2+VR=10～20K

Ω

VEE (-Voltage)

R2

R1

VR

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 11/18

OPTREX

4.3.Block Diagram

CFL GND

CFL HOT

VEE

VADJ

VSS

VCC

D0～D3

CP

FLM

LP

DISPOFF

or equivalent

LC79431D × 3

Row Driver

LC79401D × 4

Column Driver

L C D P

320

240

4

LP

2

2

320 × 240 dots

M Circuit

To LSIBias Circuit

CFL Backlight

or equivalent

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 12/18

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

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 13/18

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

Ｙ

X

A Zone
B Zone

C Zone

C Zone

X=120.0mm
Y=90.0mm

Bezel Flame

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 14/18

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.

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 15/18

OPTREX

No. Parameter Criteria

3 T he 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

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 16/18

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.

ＤＭＦ－５０８４０

ＮＦ－ＦＷ

Stamp

Etching or Printing

9.Applying Precautions

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

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 17/18

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.

DMF-50840NF-FW (AB) No.99-0130 OPTREX CORPORATION Page 18/18

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 industrial property, which may arise through the use of your
product, 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.