DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 1/16
OPTREX
Type No.
*******
June 3, 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
Table of Contents
1. General Specifications .............................................................................2
2. Electrical Specifications...........................................................................3
3. Optical Specifications ..............................................................................7
4. I/O Terminal.............................................................................................9
5. Test..........................................................................................................11
6. Appearance Standards............................................................................12
7. Code System of Production Lot ..........................................................15
8. Type Number .........................................................................................15
9. Applying Precautions.............................................................................15
10. Handling Precautions .............................................................................16
Revision History
Rev. Date Page
Comment
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 2/16
OPTREX
1.General Specifications
Operating Temp.
min. 0 max. 50
Storage Temp.
min. -20 max. 70
Display Format
24 characters 2 lines
Display Fonts
5 8 dots
Viewing Area
93.5 (W) 15.8 (H) mm
Outline Dimensions
121.5 (W) 33.5 (H) 16.1 max. (D) mm
Weight
98g max.
LCD Type
NTD-7566
( STN / Yellow -mode / Transmissive )
Viewing Angle
12:00
Control LSI
T7934-0100(BR) (Produced by TOSHIBA)
Backlight
LED Backlight / Yellow-green
Additional Spec.
Holder and PWB ground are connected by soldering.
Drawings
Dimensional Outline
UE-33623C
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 3/16
OPTREX
2.Electrical Specifications
2.1.Absolute Maximum Ratings
V
SS
=0V
Parameter Symbol Conditions
Min. Max.
Units
Supply Voltage
(Logic)
V
CC
-V
SS
-0.3
7.0
V
Supply Voltage
(LCD Drive)
V
CC
-V
EE
0
7.0
V
Input Voltage
V
I
-0.3
V
CC
+0.3 V
2.2.DC Characteristics
Ta=25, V
SS
=0V
Parameter Symbol Conditions
Min. Typ. Max.
Units
Supply Voltage
(Logic)
V
CC
-V
SS
4.5
5.5
V
Supply Voltage
(LCD Drive)
V
CC
-V
EE
Shown in 3.1
V
High Level
Input Voltage
V
IH
V
CC
=5.0V10% 2.0
V
CC
V
Low Level
Input Voltage
V
IL
V
CC
=5.0V10% 0 0.8
V
High Level
Output Voltage
V
OH
I
OH
=-1.2mA 2.4
V
CC
V
Low Level
Output Voltage
V
OL
I
OL
=2.0mA 0
0.4
V
Supply Current
I
CC
V
CC
-V
SS
=5.0V
1.3 2.0
mA
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 4/16
OPTREX
2.3.AC Characteristics
V
CC
=5.0V10%
Parameter Symbol
Conditions
Min.
Max.
Units
Enable Cycle Time
t
CYC
Fig.1,
2 500
ns
Enable Pulse Width
PW
EH
Fig.1,
2 220
ns
Enable Rise/Fall Time
t
E
r,
t
E
f Fig.1,
2 20 ns
Address Setup Time
t
AS
Fig.1,
2 40
ns
Address Hold Time
t
AH
Fig.1,
2 10
ns
Write Data Setup Time
t
DSW
Fig.1 60 ns
Write Data Hold Time
t
DHW
Fig.1 10 ns
Read Data Delay Time
t
DDR
Fig.2 120 ns
Read Data Hold Time
t
DHR
Fig.2 20 ns
Fig.1 Write Operation Timing
Fig.2 Read Operation Timing
E
R/W
V
IH
V
IL
PW
EH
V
IL
t
CYC
t
E
r
t
E
f
t
DSW
t
DHW
t
AH
t
AS
V
IL
RS
DB0
DB7
Valid Data
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IL
V
IH
V
IL
V
IH
V
IL
E
R/W
V
IH
V
IH
V
IH
PW
EH
t
DDR
t
E
f
t
CYC
t
DHR
t
E
r
t
AH
t
AS
V
IL
RS
DB0
DB7
Valid Data
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IL
V
OH
V
OL
V
OH
V
OL
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 5/16
OPTREX
2.4.Power Supply ON/OFF Sequence
2.4.1.ON Sequence
2.4.2.OFF Sequence
Please maintain the above sequence when turning on and off the power supply of the module.
If V
EE
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.
VEE
VSS
VSS
VCC
VSS
VCC
VEE
VCC
0
t
0
t
SIGNAL
SIGNAL
LEVEL
VCC
VEE
VSS
VSS
VCC
VSS
VCC
VEE
VCC
0
t
0
t
SIGNAL
SIGNAL
LEVEL
VCC
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 6/16
OPTREX
2.5.Lighting Specifications
2.5.1.Absolute Maximum Ratings
Ta=25
Parameter Symbol
Conditions
Min.
Typ.
Max.
Units
Reverse Voltage
V
R
Note
1
8.0 V
LED Power Dissipation
P
D
700 mW
Note 1 : V
F
is defined as the voltage between ANODE and CATHODE as shown below.
2.5.2.Operating Characteristics
Ta=25
Parameter Symbol
Conditions
Min.
Typ.
Max.
Units
Foward Current
I
F
V
F
=5.0V 50
80
100
mA
Luminance of
Backlight Surface
L V
F
=5.0V 35
cd/
VLED
VSS
R
I
F
VF
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 7/16
OPTREX
3.Optical Specifications
3.1.LCD Driving Voltage
Parameter Symbol
Conditions
Min.
Typ.
Max.
Units
Recommended
Ta=
0
5.3 V
LCD Driving Voltage
V
CC
-V
EE
Ta=25 4.4
4.7
5.1
V
Note 1
Ta=50 4.2
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, 1/16 Duty, 1/4.5 Bias, V
D
=4.7V (Note 4), = 0, =
Parameter Symbol
Conditions
Min.
Typ.
Max.
Units
Contrast Ratio
Note 1
CR
= 0, =
10
Viewing Angle
Shown in 3.3
Response Rise
Note 2
T
ON
100 200 ms
Time Decay
Note 3
T
OFF
200 300 ms
Note 1 : Contrast ratio is definded as follows.
CR = L
OFF
/ L
ON
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
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 follows.
V
D
= (Vth1+Vth2) / 2
Vth1 : The voltage V
O-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 V
O-P
that should provide 50% of the satulation level in the luminance at
the segment which the OFF signal is applied to.
V
O-P
1 /
f
F
( B-2 )
V
O-P
/ B
1 / (
f
F
A )
OFF SIGNAL
ON SIGNAL
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 8/16
OPTREX
3.3.Definition of Viewing Angle and Optimum Viewing Area
Point shows the point where contrast ratio is measured. : = 0, =
Driving condition :1/16 Duty, 1/4.5 Bias, V
D
=4.7V,
f
F
=70Hz
Area shows typ. CR2
3.4.System Block Diagram
0
90
180
270
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
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 9/16
OPTREX
4.I/O Terminal
4.1.Pin Assignment
CN1
No. Symbol Level
Function
1
V
SS
Power Supply (0V)
2
V
CC
Power Supply for Logic
3
V
EE
Power Supply for LCD Drive
4
RS
H / L
Register Select Signal
5
R/W
H / L
Read/Write Select Signal H : Read L : Write
6
E
H / L
Enable Signal (No pull-up Resister)
7
DB0
H / L
Data Bus Line / Non-connection at 4-bit operation
8
DB1
H / L
Data Bus Line / Non-connection at 4-bit operation
9
DB2
H / L
Data Bus Line / Non-connection at 4-bit operation
10
DB3
H / L
Data Bus Line / Non-connection at 4-bit operation
11
DB4
H / L
Data Bus Line
12
DB5
H / L
Data Bus Line
13
DB6
H / L
Data Bus Line
14
DB7
H / L
Data Bus Line
15 VLED
Power Supply for LED
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
VEE
VSS
VEE (-Voltage)
VCC (+Voltage)
VR=10
20K
VSS (0V)
VR
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 10/16
OPTREX
4.3.Block Diagram
VLED
VEE
FG
GND
VCC
D0
D7
E
RD
R/W
T7934
Control LSI
or equivalent
T6A92
Segment Driver
L C D P
SEG80
24 character
2 lines
To LSI
Bias Circuit
LED Backlight
8
4
COM16
J
SEG40
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 11/16
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
702, 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
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 12/16
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 45against 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
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 13/16
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
5 5 *
0.2
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
0.02W *
*
*
2.0L 0.03W
3 3 *
1.0L 0.04W
1 2 *
1.0L 0.05W
0 2 *
0.05W
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 0.15 * * *
0.15 D 0.3 2 3 *
0.3
D 0.5 1 2 *
0.5
D 1.0 0 1 *
* : Disregard
Total defects shall not exceed 3.
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 14/16
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) / 20.2mm
(Less than 0.1mm is no counted.)
Total defects shall not exceed 5.
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
Color Variation
Not to be conspicuous defects.
0.15
Y
X
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 15/16
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.
Stamp
Etching or Printing
9.Applying Precautions
Please contact us when questions and/or new problems not specified in this specifications arise.
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 16/16
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.
Please be sure to ground human body and electric appliances during work.
It is preferable to use conductive mat on table and wear cotton clothes or conduction processed fiber.
Synthetic fiber is not recommended.
Please 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).
Store as delivered by Optrex
If 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.
Store at temperature 0 to +35 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.
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.
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