OPTREX DMF

First Edition
Mar 30, 1999
LCD Module Specification
Approved by
Production Div.
Checked by
Quality Assurance Div.
Checked by
Design Engineering Div.
Prepared by
Production Div.
Final Revision
*******
Type No.
DMF-50840NFL-SFW
Table of Contents
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
General Specifications .............................................................................2
Electrical Specifications...........................................................................3
Optical Specifications ..............................................................................8
I/O Terminal...........................................................................................10
Test..........................................................................................................12
Appearance Standards............................................................................13
Code System of Production Lot ..........................................................16
Type Number..........................................................................................16
Applying Precautions .............................................................................16
Precautions Relating Product Handling................................................17
Warranty..................................................................................................18
Revision History
Rev.
Date
DMF-50840NFL-SFW
Page
(AI) No.99-0076
Comment
OPTREX
OPTREX CORPORATION
Page 1/18
1.General Specif ications
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* (H) × 11.0 max.** (D) mm
* Without Connector
** Without CFL Cable
Weight
: 230g max.
LCD Type
: NSD-15885
( F-STN / Black &White-mode / Transflective )
Viewing Angle
: 9:00
Data Transfer
: 4-bit parallel data transfer
Backlight
: Cold Cathode Fluorescent Lamp (CFL) × 1
Drawings
: Dimensional Outline
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
UE-300149
OPTREX CORPORATION
Page 2/18
2.Electrical Specif ications
2.1.Absolute Maximum Ratings
VSS=0V
Parameter
Supply Voltage
Symbol
Conditions
Min.
Max.
Units
VCC-VSS
-
-0.3
7.0
V
VCC-VEE
-
0
35.0
V
VI
-
-0.3
VCC+0.3
V
(Logic)
Supply Voltage
(LCD Drive)
Input Voltage
2.2.DC Characteristics
Ta=25℃, VSS=0V
Parameter
Supply Voltage
Symbol
Conditions
Min.
Typ.
Max.
Units
VCC-VSS
-
4.5
-
5.5
V
VCC-VEE
-
27.0
-
30.0
V
(Logic)
Supply Voltage
(LCD Drive)
VCC-VADJ
High Level
Shown in 3.1
V
VIH
VCC=5.0V±10%
0.8×VCC
-
VCC
V
VIL
VCC=5.0V±10%
0
-
0.2×VCC
V
ICC
VCC-VSS=5.0V
-
5.5
15.0
mA
IEE
VCC-VADJ=
-
4.5
10.0
mA
fF
Duty=50%
70
75
80
Hz
Input Voltage
Low Level
Input Voltage
Supply Current
Frame
DMF-50840NFL-SFW
(AI) No.99-0076
V
OPTREX
OPTREX CORPORATION
Page 3/18
2.3.AC Characteristics
VCC=5.0V±10%
Parameter
Symbol
Min.
Max.
Units
CP Frequency
fCP
-
6.0
MHz
Clock Pulse Width
tWC
tWL
50
-
ns
63
-
ns
tSETUP
tHOLD
tCL
tLC
tr, tf
tFDS
tFDH
30
-
ns
30
-
ns
80
-
ns
110
-
ns
-
Note 1
ns
100
-
ns
Load Pulse Width
Data Setup Time
Data Hold Time
Clock Pulse Setup Time
Clock Pulse Hold Time
Rise/Fall Time
FLM Setup Time
FLM Hold Time
100
-
Note 1:The rise and fall times (tr, tf ) must satisfy the following relationships (①and ②).
①tr, tf<
1
2fCP
ns
tWC
-
②tr, tf< 50 ns
LOAD
tWL
tr
tCL
tf
tLC
tWC
CP
tWC
tr
tf
tSETUP
tHOLD
DI 0~DI 3
tFDS
tFDH
FLM
This module contain these capacitors. Please be careful about timing characteristics.
FLM
1000pF
LP
470pF
VSS
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 4/18
2.4.Timing Chart
T=0.0556ms typ.
LP
CP
SEG
SEG
SEG
SEG
D3
313~
316
317~
320
1~
4
5~
8
~
D0
#1 DATA
SEG
SEG
SEG
SEG
313~
316
317~
320
1~
4
5~
8
FLM
LP
(Reduction)
240×T
FLM
(Reduction)
2.5.Comparison of Display and Data
SEG1
#1
D3
SEG320
D2
D1
D0
D1
D0
TOP VIEW
D0~D3
#240
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 5/18
2.6.Power Supply ON/OFF Sequence
2.6.1.ON Sequence
SIGNAL
LEVEL
VCC
VCC
VSS
0≦t
VCC
SIGNAL
VSS
0≦t
VCC
VADJ
VEE
VSS
VADJ
VEE
0≦t
VCC
VSS
DISPOFF
2.6.2.OFF Sequence
LEVEL
SIGNAL
VCC
VSS
VCC
0≦t
VCC
VSS
0≦t
SIGNAL
VCC
VADJ
VEE
VSS
VADJ
VEE
VCC
0≦t
VSS
DISPOFF
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.
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 6/18
2.7.Lighting Specifications
Ta=25℃
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Notes
Lamp Voltage
VL
-
-
300
-
Vrms
1
Lamp Current
IL
-
3.0
4.0
6.0
mArms
2
Starting Voltage
VS
-
-
-
1000
Vrms
3
Surface Luminance
L
IL=4.0mA
-
60
-
cd/㎡
4
Average Life
TAL
IL=4.0mA
25000
hrs
5
-
-
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 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.
Y=60
I
N
C
VS
VL
V
Y=160
Y=260
P1
P2
P3
P4
P5
P6
P7
P8
P9
F
L
X=60
X=120
X=180
IL
Measurement Points
CFL Testing Circuit
Recommended Inverter :
DMF-50840NFL-SFW
S-12565 ( Produced by ELEVAM )
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 7/18
3.Optical Specif ications
3.1.LCD Driving Voltage
Parameter
Symbol
Recommended
LCD Driving Voltage
Note 1 :
VCC-VEE
Conditions
Min.
Typ.
Max.
Units
Ta= 0℃
-
-
26.2
V
Ta=25℃
22.4
24.1
25.8
V
Note 1
Ta=50℃
22.1
V
-
-
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℃, 1/240 Duty, 1/14 Bias, VD=24.1V (Note 4), θ= 0 ゚, φ=-゚
Parameter
Contrast Ratio
Symbol
Conditions
Min.
Typ.
Max.
CR
θ= 0 ゚, φ=-゚
-
4.5
-
Note 1
Viewing Angle
Response
Units
Shown in 3.3
Rise
Note 2
TON
-
-
360
540
ms
Time
Decay Note 3
TOFF
340
510
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
VD=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 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
( B-2 )×VO-P / B
1 / ( fF×A )
1 / fF
〈ON SIGNAL〉
DMF-50840NFL-SFW
(AI) No.99-0076
〈OFF SIGNAL〉
OPTREX
OPTREX CORPORATION
Page 8/18
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 : 1/240 Duty, 1/14 Bias, VD=24.1V, fF=75.0Hz
90゚
45゚
135゚
θ
φ
10 20 30 40 50
180゚
90゚
(φ= 0゚)
θ
φ
180゚
225゚
0゚
315゚
270゚
270゚
・Area
shows typ. CR≧2
3.4.System Block Diagram
Temperature Chamber
Rotation Table (θ,φ)
Photometer
#1980A WB
LCD
φ
Optical Fiber
θ
Computer
Control Unit &
Waveform Generator
Halogen bulb
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 9/18
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
Display Control Signal H : Display on L : Display off
6
FLM
H/L
First Line Marker
7
NC
-
8
LP
H/L
Data Latch Signal
9
CP
H/L
Clock 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
No.
Symbol
Level
5
FL (HOT)
-
Power Supply for CFL (HOT)
6
NC
-
Non-connection
7
NC
-
Non-connection
8
FL (GND)
-
Power Supply for CFL (GND)
Non-connection
CN2
Function
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.
VCC (+Voltage)
VCC
R1
VADJ
VR
MODULE
R2
VEE
VEE (-Voltage)
VSS
VSS (0V)
R1+R2+VR=10~20K Ω
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 10/18
4.3.Block Diagram
Row Driver
LC79431D × 3
or equivalent
FLM
240
LCDP
320 × 240 dots
2
LP
DISPOFF
320
2
Column Driver
LC79401D × 4
or equivalent
CP
4
D0~D3
LP
M Circuit
VCC
VSS
Bias Circuit
To LSI
VADJ
VEE
CFL Backlight
HOT
GND
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 11/18
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.
F
E
G
B
D
C
A
60cm
Concrete Surface
Dropping method corner dropping
A corner : once
Edge dropping
B,C,D edge : once
Face dropping
E,F,G face : once
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.
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 12/18
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 ゚ against perpendicular line.
45゚
6.2.Definition of applicable Zones
X
X=120.0mm
Y=90.0mm
Y
A Zone
B Zone
C Zone
Bezel Flame
C Zone
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
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 13/18
6.3.Standards
No.
1
Parameter
Black and
Criteria
(1) Round Shape
White Spots,
Foreign Substances
Zone
Acceptable Number
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
X (mm)
Acceptable Number
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
X : Length Y : Width
In the same way (1)
* : Disregard
Total defects shall not exceed 5.
2
Air Bubbles
(between glass
Zone
& polarizer)
Dimension (mm)
Acceptable Number
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-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 14/18
No.
3
Parameter
The Shape of Dot
Criteria
(1) Dot Shape (with Dent)
0.15≧
As per the sketch of left hand.
(2) Dot Shape (with Projection)
Should not be connected to next dot.
(3) Pin Hole
X
(X+Y) / 2≦0.2mm
Y
(Less than 0.1mm is no counted.)
(4) Deformation
(X+Y) / 2≦0.2mm
Y
X
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
7
Complex 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
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 15/18
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 NFL-SFW
Stamp
Etching or Printing
9.Applying Precautions
Please contact us when questions and/or new problems not specified in this specifications arise.
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 16/18
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) 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.
③The use of CFLs for extended periods of time at low temperatures will significantly shorten their
service life.
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 17/18
8) For models which use touch panels:
①Do not stack up modules since they can be damaged by components on neighboring modules.
②Do not place heavy objects on top of the product. This could cause glass breakage.
9) For models which use COG,TAB,or COF:
①The 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.
②Given 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:
①In order to maintain reliability, do not touch or hold by the connector area.
②Avoid 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.
DMF-50840NFL-SFW
(AI) No.99-0076
OPTREX
OPTREX CORPORATION
Page 18/18