DMF-50840NB-FW-AKE-AS - RF Micro Devices

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 1/18

LCD Module Technical Specification

DMF-50840NB-FW-AKE-AS

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

Checked by (Design Engineering Div.)

Checked by (Quality Assurance Div.)

Approved by (Production Div.)

Prepared by (Production Div.)

Revision History

Rev. Date Page Comment

2Aug 2,2001 2,12 Change of Operating Temperature.( 0°C ~50°C→0°C ~60°C)

72.7 Lighting Specifications

Change of Backlight’s Average Life.(25000hrs→50000hrs)

83.1 LCD Driving Voltage

The driving voltage is changed along with the temperature

range change.(Ta=60°C Min.)

Type No.

Jan 20, 2000

OPTREX

First Edition

Final Revision

Aug 2,2001

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 2/18

1. General Specifications

Operating Temp. :min. 0°C ~max. 60°C

Storage Temp. :min. -20°C ~max. 60°C

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* (H) × 11.0max.* (D) mm

*Without Connector

**Without CFL Cable

Weight :230g max.

LCD Type :NTD-15885

( STN / Blue-mode / Transmissive )

Viewing Angle :6:00

Data Transfer :4-bit parallel data transfer

Backlight :Cold Cathode Fluorescent Lamp (CFL) × 1

Additional Spec. :Electroplated Coating of Black-Zinc on Steel Holder Type

Drawings :Dimensional Outline UE-36988

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 3/18

2. Electrical Specifications

2.1. Absolute Maximum Ratings VSS=0V

Parameter Symbol Conditions Min. Max. Units

Supply Voltage

(Logic)

VCC-VSS --0.3 7.0 V

Supply Voltage

(LCD Drive)

VCC-VEE -035.0 V

Input Voltage VI--0.3 VCC+0.3 V

2.2. DC Characteristics Ta=25°C, VSS=0V

Parameter Symbol Conditions Min. Typ. Max. Units

Supply Voltage

(Logic)

VCC-VSS -4.5 -5.5 V

Supply Voltage

VCC-VEE -26.4 -30.0 V

(LCD Drive) VCC-VADJ Shown in 3.1 V

High Level

Input Voltage

VIH VCC=5.0V±10% 0.8×VCC -VCC 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

IEE VCC-VADJ=23.3V -5.0 10.0 mA

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 4/18

2.3. AC Characteristics VCC=5.0V±10%

Parameter Symbol Min. Max. Units

CP Frequency fCP -6.0 MHz

Clock Pulse Width

WC 50 -ns

Latch Pulse Width

WL 63 -ns

Data Setup Time

SETUP 30 -ns

Data Hold Time

HOLD 30 -ns

Clock Pulse Setup Time

CL 80 -ns

Clock Pulse Hold Time

LC 0-ns

Rise/Fall Time

f-Note 1 ns

FLM Setup Time

FDS 100 -ns

FLM Hold Time

FDH 100 -ns

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

- tWC

tr, tf ≤ 50 ns

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

tr, tf ≤

1000pF

470pF

FLM

VSS

2fCP

HOLD

SETUP

tWC

D0~D3

tWL

tWC

FDH

FDS

FLM

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 5/18

2.4. Timing Chart

2.5. Comparison of Display and Data

T=0.0556ms

typ.

240xT

(Reduction)

FLM

#1 DATA

SEGSEG SEGSEG SEGSEG SEGSEG

320316 84 320316 84

317~313~ 5~ 1~ 317~313~ 5~ 1~

FLM

SEG1 SEG320

#240

D2D3

D0~D3

TOP VIEW

D0D1 D0D1

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 6/18

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 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

VCC

VSS

DISPOFF

VCC

VEE

0≤t

SIGNAL

≤

SIGNAL

VCC

LEVEL

0≤t

VADJ

VCC

VSS

VEE

VSS

VCC

VSS

DISPOFF

VCC

VEE

0≤t

SIGNAL

≤

SIGNAL

VCC

LEVEL

0≤t

VADJ

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 7/18

2.7. Lighting Specifications Ta=25°C

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 LIL=4.0mA -60 -cd/m24

Average Life TAL IL=4.0mA 50000 - - hrs 5

Brightne Ratio BIL=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 is measured

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 time period that the actual luminance becomes 50% or lower of its

initial value.

The Average life time of CFL is defined as the time when half or more of the testing CFLs

have become less bright than 50% of the initial brightness at continuous operation.

Recommended Inverter : S-12561 ( Produced by ELEVAM )

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

CFL Testing Circuit

Measurement Points

X=120

X=60

X=180

Y=260Y=160Y=60

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 8/18

3. Optical Specifications

3.1. LCD Driving Voltage

Parameter Symbol Conditions Min. Typ. Max. Units

Recommended Ta= 0°C- - 26.4 V

LCD Driving Voltage VCC-VADJ Ta=25°C21.7 23.3 24.9 V

Note 1 Ta=60°C20.0 - - 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, 1/240 Duty, 1/14 Bias, VOD=22.7V (Note 4), θ= 0°C, φ=-°

Parameter Symbol Conditions Min. Typ. Max. Units

Contrast Ratio Note 1 CR θ= 0°C , φ=-°-5-

Viewing Angle Shown in 3.3

Response Rise Note 2 TON - - 250 380 ms

Time Decay Note 3 TOFF - - 280 420 ms

Note 1 :Contrast ratio is definded as follows. (CR = LON / LOFF)

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 VOD

VOD=VCC-VADJ-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

VOD is definded as the voltage VO-P when the contrast ratio (CR=LON / LOFF) is at its

maximum.

Vo-p

1 /fF

( B-2 ) ×Vo-p/B

1/( fF×A )

( OFF SIGNAL )

( ON SIGNAL )

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 9/18

3.3. Definition of Viewing Angle and Optimum Viewing Area

*Point • shows the point where contrast ratio is measured. : θ= 0°, φ= -°

*Driving condition : 1/240 Duty, 1/14 Bias, VOD=22.7V, fF=75Hz

270°

180°

270°

135°

315°225°

45°

180°

90°

(φ = 0°)

*Area shows typ. CR≥2

3.4. System Block Diagram

Halogen bulb

Computer

Rotation Table ( θ,φ )

Temperature Chamber

LCD

Optical Fiber

Waveform Generator

Control Unit &

#1980A WB

Photometer φ

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 10/18

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→LData Latch Signal

9. CP H→LClock Signal for Shifting Data

10. VCC -Power Supply for Logic

11. VSS -Power Supply (0V, GND)

12. VEE -Power Supply for LCD Drive

13. VADJ -Voltage Level for LCD Contrast Adjustment

14. FG -Frame Ground

CN2

No. Symbol Level Function

1CFL HOT -Power Supply for CFL (HOT)

2NC -Non-connection

3NC -Non-connection

4CFL 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~

KΩ

VEE (-Voltage)

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 11/18

4.3. Block Diagram

CFL GND

CFL HOT

VEE

VADJ

VSS

VCC

D0~D3

FLM

DISPOFF

or equivalent

LC79430D

Row Driver

LC79401D × 4

Column Driver

L C D P

320

240

320 × 240 dots

M Circuit

To LSIBias Circuit

CFL Backlight

or equivalent

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 12/18

5. Test

No change on display and in operation under the following test condition.

Conditions: Unless otherwise specified, tests will be conducted under the following condition.

Temperature: 20±5°C

Humidity : 65±5%RH

tests will be not conducted under functioning state.

No. Parameter Conditions Notes

1High Temperature Operating 60°C±2°C, 96hrs (operation state)

2Low Temperature Operating 0°C±2°C, 96hrs (operation state) 1

3High Temperature Storage 60°C±2°C, 96hrs 2

4Low Temperature Storage -20°C±2°C, 96hrs 1,2

5Damp Proof Test 40°C±2°C,90~95%RH, 96hrs 1,2

6Vibration Test Total fixed amplitude : 1.5mm 3

Vibration Frequency : 10~55Hz

One cycle 60 seconds to 3 directions of X, Y, Z for

each 15 minutes

7Shock Test To be measured after dropping from 60cm high on

the concrete surface in packing state.

Note 1 :No dew condensation to be observed.

Note 2 :The function test shall be conducted after 4 hours storage at the normal

Temperature and humidity after removed from the test chamber.

Note 3 :Vibration test will be conducted to the product itself without putting it in a container.

60cm

Concrete Surface

Dropping method corner dropping

E,F,G face : once

B,C,D edge : once

A corner : once

Face dropping

Edge dropping

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 13/18

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

X=122.0mm

Y=90.0mm

Bezel Flame

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 14/18

6.3. Standards

No. Parameter Criteria

1Black and (1) Round Shape

White Spots, Zone Acceptable Number

Foreign Substances Dimension (mm) A B C

D ≤0.1 * * *

0.1 < D ≤0.2 35*

0.2 < D ≤0.25 23*

0.25< D ≤0.3 01*

0.3 < D 00*

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 33*

1.0 ≥ L 0.1 ≥ W 33*

-0.1 < W In the same way (1)

X : Length Y : Width * : Disregard

Total defects shall not exceed 5.

2Air 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 23*

0.6 < D 00*

* : Disregard

Total defects shall not exceed 3.

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 15/18

No. Parameter Criteria

3The 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 Not to be conspicuous defects.

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.

7Distance between D ≤ 0.2 : 20mm or more

Different Foreign 0.2 < D : 40mm or more

Substance Defects

0.15

≥

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 16/18

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)

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.

DMF-50840 NB-FW-AKE-AS

Stamp or Seal

Etching or Printing

9. Applying Precautions

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

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 17/18

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 the 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) Conductivity 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.

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.

DMF-50840NB-FW-AKE-AS (AS) No. 2001-0159 OPTREX CORPORATION Page 18/18

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.