DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 1/17
OPTREX
Type No.
*******
April 23, 1998
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–50174ZNF–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. Handling Precautions................................................................17
Revision History
Rev. Date Page Comment
DMF-50174ZNF-FW (AS) No.98-0089 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 : 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 : 122.0 (W) × 92.0 (H) mm
Outline Dimensions : 174.0* (W) × 112.0 (H) × 13.5 max. (D) mm
* Without CFL Cable
Weight : 300g max.
LCD Type : NTD-11437
( 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-20762A
DMF-50174ZNF-FW (AS) No.98-0089 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)
VCC-VSS – -0.3 7.0 V
Supply Voltage
(LCD Drive)
VCC-VEE – 0 32.0 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 – 26.8 – 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=22.6V – 5.0 10.0 mA
Clock Frequency fCP Duty=50% – – 6.0 MHz
DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 4/17
OPTREX
2.3. AC Characteristics VCC=5.0V±10%
Parameter Symbol Min. Max. Units
Clock Pulse Width tWC 50 – ns
Load Pulse Width tWL 63 – ns
Data Setup Time tSETUP 30 – ns
Data Hold Time tHOLD 30 – ns
Clock Pulse Setup Time tCL 80 – ns
Clock Pulse Hold Time tLC 110 – ns
Rise/Fall Time tr, tf – Note 1 ns
FLM Setup Time tFDS 100 – ns
FLM Hold Time tFDH 100 – ns
Note 1:The rise and fall times (tr, tf ) must satisfy the following relationships (①and②).
①tr, tf < 1 – tWC
2fCP
②tr, tf < 50 ns
This module contain these capacitors. Please be careful about timing characteristics.
1000pF
1000pF
470pF
FLM
LP
VSS
M
tr
tf
tf
tHOLD
tSETUP
tWC
tLC
tCL
CP
LOAD
DI 0~DI 3
tWL
tWC
tr
tFDH
tFDS
FLM
DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 5/17
OPTREX
2.4. Timing Chart
2.5. Comparison of Display and Data
T=0.0595ms typ.
240×T
FLM
LP
FLM
M
D3
D0
CP
LP
#1 DATA
SEGSEG SEGSEG SEGSEG SEGSEG
320316 84 320316 84
317~313~ 5~ 1~317~313~ 5~ 1~
(Reduction)
(Reduction)
SEG1 SEG320
#1
#240
D2D3
D0~D3
TOP VIEW
D0D1 D0D1
DMF-50174ZNF-FW (AS) No.98-0089 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 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-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 7/17
OPTREX
2.7. Lighting Specifications Ta=25˚C
Parameter Symbol Conditions Min. Typ. Max. Units Notes
Lamp Voltage VL– – 220 – Vrms 1
Lamp Current IL– 4.0 5.0 6.0 mArms 2
Starting Voltage VS– – 630 – Vrms 3
Surface Luminance L IL=5.0mA 40 50 – cd/m24
Average Life TAL IL=5.0mA 10000 15000 – 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 initial data of luminance measured at the center of display
surface after 20 minutes power on. ( All ON pattern )
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.
V
N
I
CFL Testing Circuit
L
F
C
VS VL
IL
DMF-50174ZNF-FW (AS) No.98-0089 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 – – 26.2 V
LCD Driving Voltage VCC-VADJ Ta=25˚C 21.0 22.6 24.2 V
Note 1 Ta=50˚C 19.4 – – 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, 1/240 Duty, 1/14 Bias, VD=22.6V (Note 4), θ= 0˚, φ= –˚
Parameter Symbol Conditions Min. Typ. Max. Units
Contrast Ratio Note 1 CR θ= 0˚, φ= –˚ – 10 –
Viewing Angle Shown in 3.3
Response Rise Note 2 TON – – 220 330 ms
Time Decay Note 3 TOFF – – 240 360 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 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 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-50174ZNF-FW (AS) No.98-0089 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 : 1/240 Duty, 1/14 Bias, VD=22.6V, fF=70Hz
•Area shows typ. CR≥2
3.4. System Block Diagram
0˚
90˚
180˚
270˚
θ
φ
270˚
135˚
315˚225˚
45˚
180˚
90˚
θ(φ= 0˚)
φ
10 20 30 40 50
φ
Halogen bulb
Computer
Rotation Table (θ,φ)
Temperature Chamber
LCD
Optical Fiber
Waveform Generator
Control Unit &
#1980A WB
Photometer
θ
DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 10/17
OPTREX
4. I/O Terminal
4.1. Pin Assignment
CN1
No. Symbol Level Function
1 FLM H / L First Line Marker
2 LP H→L Data Latch Signal
3 CP H→LClock Signal for Shifting Data
4 M H / L Alternate Signal for LCD Drive
5 VADJ – Voltage Level for LCD Contrast Adjustment
6 VCC – Power Supply for Logic
7 VSS – Power Supply (0V, GND)
8 VEE – Power Supply for LCD Drive
9 D0 H / L Display Data
10 D1 H / L Display Data
11 D2 H / L Display Data
12 D3 H / L Display Data
13 DISPOFF H / L Display Control Signal H : Display on L : Display off
14 NC – Non-connection
CN2
No. Symbol Level Function
1 FL HOT – Power Supply for CFL (HOT)
2 NC – Non-connection
3NC – Non-connection
4FL 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 ~ 20 K Ω
VEE (-Voltage)
R2
R1
VR
DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 11/17
OPTREX
4.3. Block Diagram
FL GND
FL HOT
VEE
VADJ
VSS
VCC
D0~D3
CP
FLM
LP
DISPOFF
M
or equivalent
LC79431D × 3
Row Driver
LC79401D × 4
Column Driver
L C D P
320
240
4
LP
3
3
320 × 240 dots
M Circuit
To LSIBias Circuit
CFL Backlight
or equivalent
DMF-50174ZNF-FW (AS) No.98-0089 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.
E
A
GDC
F
60cm
Concrete Surface
Dropping method corner dropping
E,F,G face : once
B,C,D edge : once
A corner : once
Face dropping
Edge dropping
B
DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 13/17
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˚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˚
DMF-50174ZNF-FW (AS) No.98-0089 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.
DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 15/17
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.)
4Polarizer Scratches Not to be conspicuous defects.
5 Polarizer 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≥
Y
X
X
Y
DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 16/17
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)
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–50174ZNF–FW
Label
9. Applying Precautions
Please contact us when questions and/or new problems not specified in this specifications arise.
DMF-50174ZNF-FW (AS) No.98-0089 OPTREX CORPORATION Page 17/17
OPTREX
10. Handling Precautions
Optrex 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.
8) A high voltage over 1000V is applied at the connector of CFL cable when the CFL inverter is
connected and energized. Please do not touch there incidentally or accidentally to avoid a skin burn.
And please set the cable properly in the housing to avoid a worn-out of isolated cover of cable wire.
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.
