DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 1/17
OPTREX
Type No.
*******
Apr 28, 2000
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
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 ..........................................................15
8. Type Number .........................................................................................15
9. Applying Precautions.............................................................................15
10. Precautions Relating Product Handling ...............................................16
11. Warranty..................................................................................................17
Revision History
Rev. Date Page
Comment
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 2/17
OPTREX
1.General Specifications
Operating Temp.
min. 0 max. 50
Storage Temp.
min. -20 max. 60
Dot Pixels
3203 [R.G.B] (W) 240 (H) dots
Dot Size
0.09 (W) 0.33 (H) mm
Dot Pitch
0.12 (W) 0.36 (H) mm
Viewing Area
119.0 (W) 90.0 (H) mm
Outline Dimensions
147.1
*
(W) 127.1 (H) 12.3** (D) mm
* Without Connector Cable
* *Without CFL Cable
Weight
280g max.
LCD Type
CTD-15962
( F-STN / Color-mode / Transmissive )
Viewing Angle
12:00
Data Transfer
8-bit parallel data transfer
Backlight
Cold Cathode Fluorescent Lamp (CFL) 1
Drawings
Dimensional Outline
UE-21655
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 3/17
OPTREX
2.Electrical Specifications
2.1.Absolute Maximum Ratings
V
SS
=0V
Parameter Symbol Conditions
Min. Max.
Units
Supply Voltage
(Logic)
V
DD
-V
SS
-0.3
7.0
V
Supply Voltage
(LCD Drive)
V
LCD
-V
SS
0
45.0
V
Input Voltage
V
I
-0.3
V
DD
+0.3 V
2.2.DC Characteristics
Ta=25, V
SS
=0V
Parameter Symbol Conditions
Min. Typ. Max.
Units
Supply Voltage
(Logic)
V
DD
-V
SS
4.5
5.5
V
Supply Voltage
(LCD Drive)
V
LCD
-V
SS
Shown in 3.1
V
High Level
Input Voltage
V
IH
V
DD
=5.0V10% 0.7V
DD
V
DD
V
Low Level
Input Voltage
V
IL
V
DD
=5.0V10% 0 0.3V
DD
V
Supply Current
I
DD
V
DD
-V
SS
=5.0V
1.5 5.0
mA
I
LCD
V
LCD
-V
SS
=24.4V
8.0 15.0
mA
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 4/17
OPTREX
2.3.AC Characteristics
V
DD
=5.0V10%
Parameter Symbol
Min.
Max.
Units
Clock Pulse Cycle Time
t
WCK
50 ns
Clock Pulse High Level Width
t
WCKH
12 ns
Clock Pulse Low Level Width
t
WCKL
14 ns
Latch Pulse High Level Width
t
WLPH
15 ns
CPLP Rise Time
t
LD
0
ns
CPLP Fall Time
t
SL
25
ns
LPCP Rise Time
t
LS
25
ns
LPCP Fall Time
t
LH
25
ns
Clock Pulse Rise/Fall Time
t
r,
t
f
50 ns
Data Setup Time
t
DS
5
ns
Data Hold Time
t
DH
12 ns
DISPOFF Low Level Width
t
WDL
1.2
s
DISPOFF Cancellation Time
t
SD
100
ns
Note : During Latch Pluse is "H" level, Please make sure to keep Clock Pulse in "L" level.
t
WDL
t
SD
t
r
t
f
t
DH
t
DS
t
WCKL
t
LH
t
SL
CP
t
LD
t
LS
LP
DISPOFF
D0
D7
t
WLPH
TOP DATA
LAST DATA
t
WCK
t
WCKH
DMF-50944NCU-FW-2 (AC) No.2000-0172
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
D7
D0
CP
LP
#1 DATA
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
960
952
16
8
960
952
16
8
953
945
9
1
953
945
9
1
(Reduction)
(Reduction)
SEG1
SEG960
#1
#240
D6
D7
D0
D7
TOP VIEW
D4
D5
D0
D1
DMF-50944NCU-FW-2 (AC) No.2000-0172
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
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.
VSS
VDD
VSS
VSS
VDD
VSS
VDD
DISPOFF
VLCD
VDD
0
t
0
t
SIGNAL
SIGNAL
LEVEL
VLCD
0
t
VSS
VDD
VSS
VSS
VDD
VSS
VDD
DISPOFF
VLCD
VDD
0
t
0
t
SIGNAL
SIGNAL
LEVEL
VLCD
0
t
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 7/17
OPTREX
2.7.Lighting Specifications
Ta=25
Parameter Symbol
Conditions Min. Typ. Max.
Units
Notes
Lamp Voltage
V
L
480 Vrms
1
Lamp Current
I
L
3.5
4.0
4.5
mArms
2
Starting Voltage
V
S
700
Vrms
3
Surface Luminance
L
I
L
=4.0mA
130 cd/ 4
Average Life
T
AL
I
L
=4.0mA 10000
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.
Recommended Inverter : S-12562-6M ( Produced by ELEVAM )
V
N
I
CFL Testing Circuit
L
F
C
VS
VL
IL
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 8/17
OPTREX
3.Optical Specifications
3.1.LCD Driving Voltage
Parameter Symbol
Conditions
Min.
Typ.
Max.
Units
Recommended
Ta=
0
27.1 V
LCD Driving Voltage
V
LCD
-V
SS
Ta=25 22.7
24.4
26.1
V
Note 1
Ta=50 21.7
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, 1/240 Duty, 1/14 Bias, V
D
= V (Note 4), = 0 , =
Parameter Symbol
Conditions
Min.
Typ.
Max.
Units
Contrast Ratio
Note 1
CR
= 0 , =
25
Chromaticity (white)
x
0.320
y
0.320
Viewing Angle
Shown in 3.3
Response Rise
Note 2
T
ON
240 360 ms
Time Decay
Note 3
T
OFF
220 330 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
V
D
=V
DD
-V
ADJ
-V
BE
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=L
ON
/ 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-50944NCU-FW-2 (AC) No.2000-0172
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. : = 0 , =
Driving condition : 1/240 Duty, 1/14 Bias, V
D
=24.4V,
f
F
=70Hz
Area shows typ. CR2
3.4.System Block Diagram
270
0
90
180
270
135
315
225
45
180
90
(
= 0
10
20
30
40
50
Halogen bulb
Computer
Rotation Table (
,
)
Temperature Chamber
LCD
Optical Fiber
Waveform Generator
Control Unit &
#1980A WB
Photometer
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 10/17
OPTREX
4.I/O Terminal
4.1.Pin Assignment
CN6
No. Symbol Level
Function
1
FLM
H / L
First Line Marker
2
LP
H / L
Data Latch Signal
3
CP
H / L
Clock Signal for Shifting Data
4
DISPOFF
H / L
Display Control Signal H : Display on L : Display off
5
V
DD
Power Supply for Logic
6
V
SS
Power Supply (0V, GND)
7
V
LCD
Voltage Level for LCD Contrast Adjustment
8
D0
H / L
Display Data
9
D1
H / L
Display Data
10
D2
H / L
Display Data
11
D3
H / L
Display Data
12
D4
H / L
Display Data
13
D5
H / L
Display Data
14
D6
H / L
Display Data
15
D7
H / L
Display Data
16
V
SS
Power Supply (0V, GND)
CN7
No. Symbol Level
Function
1 HOT
Power Supply for CFL (HOT)
2 NC Non-connection
3 NC Non-connection
4 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
VCC
VLCD
VSS
VCC (+Voltage)
VLCD(+Voltage)
R1+R2+VR=10
20K
VSS (0V)
R2
R1
VR
Tr
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 11/17
OPTREX
4.3.Block Diagram
GND
HOT
D0
D7
CP
FLM
LP
DISPOFF
or equivalent
LH1530F
2
Row Driver
LH1549F
6
Column Driver
L C D P
960
240
8
LP
2
2
320(RGB)
240 dots
M Circuit
CFL Backlight
VLCD
VSS
VDD
To LSI Logic
Bias Circuit
To LSI
or equivalent
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 12/17
OPTREX
5.Test
No change on display and in operation under the following test condition.
No. Parameter
Conditions
Notes
1
High Temperature Operating
502, 96hrs (operation state)
2
Low Temperature Operating
02, 96hrs (operation state)
3
3
High Temperature Storage
602, 96hrs
4
4
Low Temperature Storage
-202, 96hrs
3, 4
5
Damp Proof Test
402, 9095%RH, 96hrs
3, 4
6
Vibration Test
Total fixed amplitude : 1.5mm
5
Vibration Frequency : 1055Hz
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 : 205
Humidity :
655%
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
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-50944NCU-FW-2 (AC) No.2000-0172
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-50944NCU-FW-2 (AC) No.2000-0172
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 0.3 2 3 *
0.3
D 0.35 0 1 *
0.35 D
0
0
*
D = ( Long + Short ) / 2 * : Disregard
(2) Line Shape
Zone Acceptable
Number
X (mm) Y (mm)
A
B
C
0.03W
* * *
2.0L 0.05W 4
4
*
1.0L 0.1
W 4
4
*
0.1
W
In the same way (1)
X : Length Y : Width * : Disregard
Total defects shall not exceed 7.
2 Air
Bubbles
(between glass
Zone
Acceptable Number
& polarizer)
Dimension (mm)
A
B
C
D1, D20.3
* * *
0.3D1, D20.5 3 * *
0.5
D1
0.7 2 3 *
0.5
D2
0.6 2 3 *
0.7D1, 0.6D2 0 0 *
D1 : Small foam a gathering D2 : Single foam * : Disregard
Total defects shall not exceed 5.
3
The Shape of Dot
However, each pixel shall remain more than one-third of the original
pixel
size.
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 7pcs maximum in total.
7 Distance
between D0.2 : 20mm or more
Different
Foreign
0.2D : 40mm or more
Substance
Defects
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 15/17
OPTREX
7.Code System of Production Lot
The production lot of module is specified as follows.
Factory Number (Numeral)
Factory Code (Alphabet)
Production Week (15)
Production Month (19, 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.
Seal
9.Applying Precautions
Please contact us when questions and/or new problems not specified in this specifications arise.
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 16/17
OPTREX
10.Precautions Relating Product Handling
The Following precautions will guide you in handling our product correctly.
1) Liquid crystal display devices
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.
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.
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.
Avoid the use of work clothing made of synthetic fibers. We recommend cotton clothing or other
conductivity-treated fibers.
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:
Protect the modules from high temperature and humidity.
Keep the modules out of direct sunlight or direct exposure to ultraviolet rays.
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:
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.
Protect CFL cables from rubbing against the unit and thus causing the wire jacket to become worn.
The use of CFLs for extended periods of time at low temperatures will significantly shorten their
service life.
DMF-50944NCU-FW-2 (AC) No.2000-0172
OPTREX CORPORATION
Page 17/17
OPTREX
8) For models which use touch panels:
Do not stack up modules since they can be damaged by components on neighboring modules.
Do not place heavy objects on top of the product. This could cause glass breakage.
9) For models which use COG,TAB,or COF:
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.
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:
In order to maintain reliability, do not touch or hold by the connector area.
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.
We cannot accept responsibility for any defect, which may arise from additional manufacturing of
the product (including disassembly and reassembly), after product delivery.
We cannot accept responsibility for any defect, which may arise after the application of strong
external force to the product.
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.
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.
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.
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.
PDF 
ZIP