64128k-rgb series - Mouser Electronics

Website: www.displaytech.com.hk
LCD Module
Product Specification
Product: 64128K-RGB Series LCD Module (128 x 64 DOTS)
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2
P 2 of 21
PRODUCT SPECIFICATIONS
n GENERAL SPECIFICATION
n ABSOLUTE MAXIMUM RATINGS
n ELECTRICAL CHARACTERISTICS
n ELECTRO-OPTICAL CHARACTERISTICS
n BLOCK DIAGRAM
n MECHANICAL DRAWING
n BACKLIGHT DRAWING
n BACKLIGHT SPECIFICATION
n QUALITY GUARANTEE
n PRECAUTIONS FOR USING LCD MODULES
n USING LCD MODULES
n REVISION RECORD
Contents in this document are subject to change without notice. No part of this document may be
reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose,
without the express written permission of Displaytech Ltd.
10 June 2008.
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2
P 3 of 21
n GENERAL SPECIFICATION
Item
Display Format
Dot Size (W x H)
View Area (W x H)
Module Size (W x H x T)
LCD Type
Polarizer Mode
View Angle
Backlight
Backlight Driver Type
Backlight Color
Controller & LCD Driver
Driving Method
Contents
128 x 64 DOTS
0.33mm x 0.33mm
50.00mm x 25.00mm
58.20mm x 41.70mm x 8.50mm
FSTN
Transflective
6 o’clock / 12 o’clock
LED
External Power
RGB
ST7565R-G
1/65 Duty, 1/9 Bias
n ABSOLUTE MAXIMUN RATINGS (Ta=25°C VSS=0V)
ITEM
Power Supply for Logic
Power Supply for LCD
Input Voltage
Supply Voltage for LED Backlight
Normal Operating Temperature
Normal Storage Temperature
Wide Operating Temperature
Wide Storage Temperature
SYMBOL
VDD-VSS
V0-VSS
VIN
VLED
Top
Tst
Top
Tst
MIN.
-0.3
-0.3
-0.3
--0
-10
-20
-30
TYP.
------3.2
---------
MAX.
3.6
13.5
VDD+0.3
--50
60
70
80
UNIT
V
V
V
V
°C
°C
°C
°C
n ELECTRICAL CHARACTERISTICS (Ta=25°C, VDD=3.0V)
ITEM
Power Supply for LCM
Input Voltage
LCD Module Driving
Voltage
Supply Current for
LCM
SYMBOL
VDD-VSS
VIL
VIH
VO-VSS
IDD
Ie
ILED
CONDITION
--L level
H level
--25°C
--VDD=3.0V
--VLED=3.2V
MIN.
2.85
Vss
0.8VDD
-------------
TYP.
3.0
------9.0
--0.5
--60
MAX.
3.15
0.2VDD
VDD
-------------
UNIT
Volt
Volt
Volt
Volt
mA
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2
P 4 of 21
n ELECTRO-OPTICAL CHARACTERISTICS
NO
Item
Symbol
1
Recommended
Operating
Voltage
VLCD
2
3
4
5
NOTE 1:
Measuring
Condition
=0
Φ= 0
Current
Consumption
9.0
---
-------------------------10
30
30
---
--9.0
----------218
----115
--10
10
-----
--------------268
----165
--40
-------
---
82
---
Vsat
=0
Φ= 0
Tr
=0
Φ= 10
Tf
=0
Φ= 10




Φ=0°
Φ=180°
Φ=90°
Φ=270°
0
25
40
0
25
40
0
25
40
0
25
40
25
25
25
25
ILCD
Hz=64
25
2)
Max
---
=0
Φ= 0
Response time
STD.Value
Min
Typ
25
Vth
Operating
Voltage
Viewing
Angle (Cr
°C
Unit
Remark
V
Note1
Note2
ms
Note4
Deg
Note1
uA
Note3
DEFINITION OF VIEWING ANGLE AND DIRECTION
Z =0°
Detector

12H Φ =180°
3H Φ =90°
Φ
9H Φ =270°
NOTE 2:
6H Φ =0°
THERSHOLD VOLTAGE AND SATURATION VOLTAGE
Vth: The voltage Vop which the transmission rate of segment is 90%(positive) or 10%(negative) of saturated value on conditions
of the selected waveform. (non-selected waveform is opposition)
Vsat: The voltage Vop which the transmission rate of segment is 10%(positive) or 10%(negative) of saturated value on
conditions of the selected waveform. (non-selected waveform is opposition)
Displaytech Ltd
NOTE 3:
LCD MODULE
64128K-RGB SERIES
Version : 1.2
CURRENT CONSUMPTION (I LCD)
Conditions:
1.Driving waveform: static waveform.
NOTE 4:
RESPONSE TIME (Tr, Tf)
NOTE 5:
CONTRAST RATIO (CR)
5.1
POSITIVE TYPE:
CONTRAST RATIO =
5.2
BRIGHTNESS AT VOP (NON-SELECTED)
BRIGHTNESS AT VOP (SELECTED)
NEGATIVE TYPE:
CONTRAST RATIO =
NOTE 6:
2.Voltage applied to all segments
CAPACITANCE (C)
Conditions:
Voltage applied to all segments.
BRIGHTNESS AT VOP (SELECTED)
BRIGHTNESS AT VOP (NON-SELECTED)
P 5 of 21
Displaytech Ltd
n BLOCK DIAGRAM
LCD MODULE
64128K-RGB SERIES
Version : 1.2
P 6 of 21
Displaytech Ltd
LCD MODULE
n MECHANCIAL DRAWING
64128K-RGB SERIES
Version : 1.2
P 7 of 21
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2
P 8 of 21
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2
P 9 of 21
Displaytech Ltd
LCD MODULE
n BACKLIGHT DRAWING
64128K-RGB SERIES
Version : 1.2 P 10 of 21
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 11 of 21
n BACKLIGHT SPECIFICATION
◆ MECHANICAL SPECIFICATIONS
ITEM
OUTLINE SIZE (LxWxH)
VIEWING AREA (LxW)
CONTACT PIN PITCH/LENGTH
NO.OF LED SMT
NOMINAL DIMENSIONS
58.20 x 41.70 x 8.50
52.0 x 27.0
NIL
3
UNIT
mm
mm
mm
---
◆ ELECTRICAL/OPTICAL CHARACTERISTICS (Ta=25 C, If=60mA typ.)
°
MODE
COLOR
CHROMATICITY COORDINATE
FORWARD VOLTAGE (Vf)
FORWARD CURRENT (If)
AVERAGE LUMINOUS INTENSITY (Iv)
PARAMETER
PURE
RED
BLUE
GREEN
X=0.6966
X=0.1982
X=0.1411
Y=0.3024
Y=0.7234
Y=0.0584
3.2 typ
3.2 typ
3.2 typ
60
60
60
30
170
70
UNIT
----V
mA
cd/m2
◆ ABSOLUTE MAXIMUM RATING
ITEM
FORWARD CURRENT
REVERSE VOLTAGE
POWER DISSIPATION
OPERATING TEMPERATURE
STORAGE TEMPERATURE
TESTING POINT
RED
90mA
5V
288mW
PURE
GREEN
90mA
5V
288mW
-20°C TO 70°C
-30°C TO 80°C
BLUE
UNIT
90mA
5V
288mW
If
Vr
Pd
Top
Tstg
CIRCUIT DIAGRAM
REMARK:
1. AVERAGE LUMINOUS INTENSITY IS THE AVERAGE VALUE OF THE NINE INDICATED POINTS AS
SHOWN.
2. MEASUREMENT INSTRUMENT: BM-7, APERTURE: 10mm.
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 12 of 21
n QUALITY GUARANTEE
◆ PURPOSE:
It is to define the inspection standard of LCD modules
◆ PRODUCT STANDARD
1) INSPECTION AND TEST
• FUNCTION TEST
• APPEARANCE INSPECTION
• PACKING SPECIFICTION
2) INSPECTION CONDITION
• Put under the lamp (20w×2) at a distance 100mm from the LCD Modules.
• Tilt upright 45 degree by the front (back) to inspect LCD appearance.
3) AQL INSPECTION LEVEL
• SAMPLING METHOD
• SAMPLING PLAN
• MAJOR DEFECT
• MINOR DEFECT
• GENERAL LEVEL
LAMP
: MIL-STD-105D
: SINGLE
: 0.65% (MAJOR)
: 2.5%
(MINOR)
: II/NORMAL
OPERATOR
LCM
◆ DISPLAY AREA DEFINITION:
View area
Viewing boundary
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 13 of 21
◆ INSPECTION STANDARD
1) FUNCTIONAL TEST STANDARD
Item
Inspection Standard Description
1 LCD has no display
2 LCM display do not change
3 Display wrong pattern
4
Display segment open
Standard Defect type
Reject
MAJ
Reject
MAJ
Reject
MAJ
Missing
segment
Reject
MAJ
Reject
MAJ
Reject
See
sample
See
sample
MAJ
Missing
segment
5
Display dim segment
6
Wrong LCD viewing direction
7
Dim Display
8
LCD color variation
Dim
segment
Dim
segment
Pattern parallelism
L
≧20mm
≧30mm
≧40mm
≧50mm
≧60mm
≧70mm
≧80mm
≧90mm
≧100mm
9
Acceptable range
<a
b
≦0.15mm
| 0.43° |
≦0.2mm
| 0.38° |
≦0.3mm
| 0.43° |
≦0.35mm
| 0.40° |
≦0.45mm
| 0.43° |
≦0.50mm
| 0.41° |
≦0.60mm
| 0.43° |
≦0.65mm
| 0.41° |
≦0.75mm
| 0.43° |
Standard
Ø=
10
LCD display
Pin hole
x+ y
2
Ø≦0.25
Ø>0.25
1
W
4
1
Ø> W
4
Ø<
MAJ
MAJ
Accept
QTY
1
1
Accept
Accept
1
Accept
1
Reject
MIN
Displaytech Ltd
Item
LCD MODULE
64128K-RGB SERIES
Inspection Standard Description
Draw
Standard Defect type
X
11
Standard
y
1
≧ b
4
LCD display
Broken segment(dots)
Version : 1.2 P 14 of 21
QTY
1
≧ a
4
(X or y) ≧0.2mm
1
1
b
≦ a
4
4
1
1
≦ b
≦ a
5
5
x+ y
Ø=
2
≦
12
13
14
15
16
LCD display
Black spot or
White spot
LCD display excess black line or white line
Ø<0.10
0.1<Ø≦0.20
0.20≦Ø<0.25
0.25< Ø≦0.4
Ø>0.4
Black line/white line(L×w)mm
(L≦1.0)×(W≦0.025)
(1.0<L≦1.5)×(W≦一‧0.025)
(L>1.5)×(W≦0.025)
(L>2)×(W>0.025)
1
Reject
MIN
1
Reject
MIN
1
Accept
2
Accept
QTY
2
1
0
0
QTY
2
1
0
0
Backlight not function
LED not function or dim
Backlight defect (dirt, scratch)
2) COSMETIC INSPECTION STANDARD
Item
Standard description of inspection
1 LCD inspection item
Accept
Accept
Accept
Reject
Reject
MIN
MAJ
Accept
Accept
Reject
Reject
Reject
Reject
Reject
MIN
MAJ
MAJ
MIN
MIN
Standard Defect type
1.1 LCD color variation
See
sample
MIN
1.2 LCD broken
Reject
MAJ
1.3 Wrong polarizer of LCD
1.4 Spot on LCD surface
Scratch on LCD
Reject
Reject
MAJ
MAJ
1.5
Ø=
x+ y
2
LCD scratch
1.6
Scratch depth see sample
x
y
Scratch =L
Scratch = Ø
Ø<0.1
0.1≦ø≦0.15
0.15< ø≦0.25
QTY
Except
2
1
Accept
Accept
Accept
Ø>0.25
1
Reject
<0.5
<1.0
scratch =W
W≦0.015
W≦0.02
W≦0.03
≧1.0
W≧0.03
MIN
QTY
2
1
Accept
Accept
Accept
1
Reject
MIN
Accept
Accept
Accept
Reject
Reject
MIN
MIN
QTY
White or black spot on LCD
1.7
x+ y
Ø=
2
Ø<0.1
0.1≦Ø<0.2
0.2≦Ø≦0.25
Ø>0.25
Bevy point
2
1
1
-
Displaytech Ltd
Item
Black line in LCD
1.8
LCD MODULE
64128K-RGB SERIES
Standard description of inspection
(L)
L≦1.0
1.0<1≦1.5
1.5<L
1.9 Round air bubble
(L)
L<0.5
L<1.0
L≧1.0
1.10 Line defect
1.11 Finger print
2 PCB/COB specification
PCB deformity
2.1
Version : 1.2 P 15 of 21
Standard Defect type
(W)
W≦0.025
W≦0.025
W>0.025
QTY
2
1
1
Size
Ø<0.15
0.15≦Ø≦0.25
Ø>0.25
(W)
W<0.02
W<0.03
W≧0.3
QTY
2
1
0
QTY
2
1
0
L
≦6.0mm
>6.0mm
<6.0mm
>6.0mm
H
≦1.5mm
≦1.5mm
>1.5mm
>1.5mm
L
≦6.0mm
>6.0mm
<6.0mm
>6.0mm
H
≦1.5mm
≦1.5mm
>1.5mm
>1.5mm
2.2 Deformity at PCB edge, damage circuit.
Convex at PCB edge
2.3
2.4
2.5
2.6
2.7
2.8
Damage excess 2x2mm at the PCB corner
Scratch on PCB surface
Scratch on PCB coat/leakage coat on PCB surface
Open circuit
PCB PTH open
QTY≦2PCS
QTY≧3PCS
2.9 Repair PCB PTH
2.10 Color different from one side to another side.
≦30mm2
≧30mm2
2.11 Repaired solder mask area
Scratch circuit, damage
Circuit
Accept
Accept
Reject
MIN
Accept
Accept
Reject
MIN
Accept
Accept
Reject
Reject
MIN
MIN
Accept
Reject
Reject
Reject
Reject
MIN
MIN
MIN
MAJ
Accept
Reject
Reject
Reject
Reject
See sample
Reject
Reject
Reject
Accept
Reject
Reject
Accept
Reject
a≦1/2w or b<w
Accept
a>1/2w or b>w
Reject
MIN
MIN
MIN
MIN
MIN
MAJ
MAJ
MAJ
MAJ
MIN
MIN
2.12
3
3.1
3.2
3.3
3.4
3.5
Bezel specification
Wrong Materials
Incorrect dimension
Bezel broken
Rust on Bezel
Hole or dirty on oil
Paint surface
Top surface
Side
Size
Ø≦0.3
0.3<Ø≦0.5
Ø>0.5
Ø≦0.5
0.5<Ø≦0.8
Ø>0.8
cm2/per
2
1
0
2
1
0
MAJ
MAJ
MAJ
MAJ
Accept
Accept
Reject
Accept
Accept
Reject
MIN
MIN
Displaytech Ltd
Item
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 16 of 21
Standard description of inspection
h≦0.01 mm/mm
h>0.01 mm/mm
3.6 Bezel bow or twist
d1-d2≦tolerance
3.7
Scratch on bezel
d1-d2>tolerance
Accept
QTY
W
Not
defined
W≦0.15
Accept
Reject
MIN
Face
L
L≦3
W≦0.20
2
L≦2
W≦0.3
2
-
3.8
See
Sample
W>0.3
side
3.9 Twist angle
Standard Defect type
Accept
Reject
MIN
Accept
QTY
L
-
W
W≦0.2
except
L≦3
W≦0.25
2
L≦2
W≦0.3
2
See
Sample
Accept
α=45º+5º
3.10 Void gap between bezel and PCB
Bezel clip incorrectly
Reject
3.11
Reject
MIN
MIN
NG
4 Solder specification
4.1 Wrong component
4.2 Broken component
Reject
Reject
MAJ
MAJ
Component legs extend beyond the pad and
Legs >pad distance(w) on solder area >W2
Accept
Component legs extend beyond the pad and
Legs >pad distance(w) on solder area <W2
Reject
Solder legs offset distance L<solder legs
1/4W
Accept
Solder legs offset L>1/4W
Reject
MIN
4.4
Reject
MIN
4.5 CHIP components hoist≦0.5mm
4.6 CHIP components hoist>0.5mm
Accept
Reject
MIN
Mis-alignment
MIN
4.3
Component
Offset
Component assembly defect
Displaytech Ltd
Item
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 17 of 21
Standard description of inspection
4.7 Components hoist
4.8 Switch (socket) hoist
4.9 Components cold solder or incomplete solder
Solder PAD tilt up, but height (h) less than
Solder PAD thickness (a)
4.10
h≦2.0mm
h>2.0mm
h≦0.5mm
h>0.5mm
Standard Defect type
Accept
Reject
MIN
Accept
Reject
MIN
Reject
MAJ
Accept
Excess solder above components
4.11
Reject
Min
4.12
Reject
MIN
4.13 Solder area less than soldering PAD Area by 2/3
Trimmed pin length beyond 0.09inch (2.3mm)
Reject
MIN
4.14
Reject
Min
Reject
Reject
Reject
Reject
MAJ
MIN
MAJ
MIN
Insufficient solder below
components height or less than diameter
5
5.1
5.2
5.3
5.4
Packing specification
Wrong carton mark .
Carton mark problem
Carton damage extend than 150mm
Carton damage, scratch more 50mm, less 150mm.
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 18 of 21
n PRECAUTIONS FOR USING LCD MODULES
◆ HANDLING PRECAUTIONS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
This device is susceptible to Electro-Static Discharge (ESD) damage. Observe Anti-Static precautions.
The display panel is made of glass. Do not subject it to a mechanical shock by dropping it or impact.
If the display panel is damaged and the liquid crystal substance leaks out, be sure not to get any in your mouth. If the
substance contacts your skin or clothes, wash it off using soap and water.
Do not apply excessive force to the display surface or the adjoining areas since this may cause the color tone to vary.
The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle this polarizer carefully.
If the display surface becomes contaminated, breathe on the surface and gently wipe it with a soft dry cloth. If it is heavily
contaminated, moisten cloth with one of the following solvents :
• Isopropyl alcohol
• Ethyl alcohol
Solvents other than those above-mentioned may damage the polarizer. Especially, do not use the following.
• Water
• Ketone
• Aromatic solvents
Exercise care to minimize corrosion of the electrode. Corrosion of the electrodes is accelerated by water droplets, moisture
condensation or a current flow in a high-humidity environment.
Install the LCD Module by using the mounting holes. When mounting the LCD module make sure it is free of twisting,
warping and distortion. In particular, do not forcibly pull or bend the I/O cable or the backlight cable.
Do not attempt to disassemble or process the LCD module.
NC terminal should be open. Do not connect anything.
If the logic circuit power is off, do not apply the input signals.
To prevent destruction of the elements by static electricity, be careful to maintain an optimum work environment.
• Be sure to ground the body when handling the LCD modules.
• Tools required for assembling, such as soldering irons, must be properly grounded.
• To reduce the amount of static electricity generated, do not conduct assembling and other work under dry conditions.
• The LCD module is coated with a film to protect the display surface. Exercise care when peeling off this protective film
since static electricity may be generated.
◆ POWER SUPPLY PRECAUTIONS:
1.
2.
3.
4.
Identify and, at all times, observe absolute maximum ratings for both logic and LC drivers. Note that there is some variance
between models.
Prevent the application of reverse polarity to VDD and VSS, however briefly.
Use a clean power source free from transients. Power-up conditions are occasionally “jolting” and may exceed the maximum
ratings of the modules.
The VDD power of the module should also supply the power to all devices that may access the display. Don’t allow the data
bus to be driven when the logic supply to the module is turned off.
◆ OPERATING PRECAUTIONS:
1.
2.
3.
4.
DO NOT plug or unplug the module when the system is powered up.
Minimize the cable length between the module and host MPU.
For models with EL backlights, do not disable the backlight by interrupting the HV line. Unload inverters produce voltage
extremes that may arc within a cable or at the display.
Operate the module within the limits of the modules temperature specifications.
◆ MECHANICAL/ENVIRONMENTAL PRECAUTIONS:
1.
2.
3.
4.
5.
6.
7.
Improper soldering is the major cause of module difficulty. Use of flux cleaner is not recommended as they may seep
under the elastomeric connection and cause display failure.
Mount the module so that it is free from torque and mechanical stress.
Surface of the LCD panel should not be touched or scratched. The display front surface is an easily scratched, plastic
polarizer. Avoid contact and clean only when necessary with soft, absorbent cotton dampened with petroleum benzene.
Always employ anti-static procedure while handling the module.
Prevent moisture build-up upon the module and observe the environmental constraints for storage temperature and humidity.
Do not store in direct sunlight
If leakage of the liquid crystal material should occur, avoid contact with this material, particularly ingestion. If the body
or clothing becomes contaminated by the liquid crystal material, wash thoroughly with water and soap
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 19 of 21
◆ Storage Precautions
When storing the LCD modules, avoid exposure to direct sunlight or to the light of fluorescent lamps. Keep the modules in
bags (avoid high temperature / high humidity and low temperatures below 0°C). Whenever possible, the LCD modules should be
stored in the same conditions in which they were shipped from our company.
◆ Others
Liquid crystals solidify under low temperature (below the storage temperature range) leading to defective orientation or the
generation of air bubbles (black or white). Air bubbles may also be generated if the module is subject to a low temperature.
If the LCD modules have been operating for a long time showing the same display patterns, the display patterns may
remain on the screen as ghost images and a slight contrast irregularity may also appear. A normal operating status can be
regained by suspending use for some time. It should be noted that this phenomenon does not adversely affect performance
reliability.
To minimize the performance degradation of the LCD modules resulting from destruction caused by static electricity etc.,
exercise care to avoid holding the following sections when handling the modules.
• Exposed area of the printed circuit board.
• Terminal electrode sections.
n USING LCD MODULES
◆ Liquid Crystal Display Modules
LCD is composed of glass and polarizer. Pay attention to the following items when handling.
Please keep the temperature within specified range for use and storage. Polarization degradation, bubble generation or
polarizer peel-off may occur with high temperature and high humidity.
2. Do not touch, push or rub the exposed polarizers with anything harder than an HB pencil lead (glass, tweezers, etc.).
3. N-hexane is recommended for cleaning the adhesives used to attach front/rear polarizers and reflectors made of organic
substances which will be damaged by chemicals such as acetone, toluene, ethanol and isopropylalcohol.
4. When the display surface becomes dusty, wipe gently with absorbent cotton or other soft material like chamois soaked in
petroleum benzin. Do not scrub hard to avoid damaging the display surface.
5. Wipe off saliva or water drops immediately, contact with water over a long period of time may cause deformation or color
fading.
6. Avoid contacting oil and fats.
7. Condensation on the surface and contact with terminals due to cold will damage, stain or dirty the polarizers. After products
are tested at low temperature they must be warmed up in a container before coming is contacting with room temperature air.
8. Do not put or attach anything on the display area to avoid leaving marks on.
9. Do not touch the display with bare hands. This will stain the display area and degradate insulation between terminals (some
cosmetics are determinated to the polarizers).
10. As glass is fragile. It tends to become or chipped during handling especially on the edges. Please avoid dropping or jarring.
1.
◆ Installing LCD Modules
The hole in the printed circuit board is used to fix LCM as shown in the picture below. Attend to the following items when
installing the LCM.
1. Cover the surface with a transparent protective plate to protect the polarizer and LC cell.
2.
When assembling the LCM into other equipment, the spacer to the bit between the LCM and the fitting plate should have
enough height to avoid causing stress to the module surface, refer to the individual specifications for measurements. The
measurement tolerance should be ±0.1mm.
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 20 of 21
◆ Precaution for Handing LCD Modules
Since LCM has been assembled and adjusted with a high degree of precision, avoid applying excessive shocks to the
module or making any alterations or modifications to it.
1. Do not alter, modify or change the shape of the tab on the metal frame.
2. Do not make extra holes on the printed circuit board, modify its shape or change the positions of components to be attached.
3. Do not damage or modify the pattern writing on the printed circuit board.
4. Absolutely do not modify the zebra rubber strip (conductive rubber) or heat seal connector.
5. Except for soldering the interface, do not make any alterations or modifications with a soldering iron.
6. Do not drop, bend or twist LCM.
◆ Electro-Static Discharge Control
Since this module uses a CMOS LSI, the same careful attention should be paid to electrostatic discharge as for an ordinary
CMOS IC.
1. Make certain that you are grounded when handing LCM.
2. Before remove LCM from its packing case or incorporating it into a set, be sure the module and your body have the same
electric potential.
3. When soldering the terminal of LCM, make certain the AC power source for the soldering iron does not leak.
4. When using an electric screwdriver to attach LCM, the screwdriver should be of ground potentiality to minimize as much as
possible any transmission of electromagnetic waves produced sparks coming from the commutator of the motor.
5. As far as possible make the electric potential of your work clothes and that of the work bench the ground potential.
6. To reduce the generation of static electricity be careful that the air in the work is not too dried. A relative humidity of
50%-60% is recommended.
◆ Precaution for soldering to the LCM
1.
Observe the following when soldering lead wire, connector cable and etc. to the LCM.
• Soldering iron temperature : 280°C ± 10°C.
• Soldering time : 3-4 sec.
• Solder : eutectic solder.
If soldering flux is used, be sure to remove any remaining flux after finishing to soldering operation. (This does not apply
in the case of a non-halogen type of flux.) It is recommended that you protect the LCD surface with a cover during soldering to
prevent any damage due to flux spatters.
2. When soldering the electroluminescent panel and PC board, the panel and board should not be detached more than three
times. This maximum number is determined by the temperature and time conditions mentioned above, though there may be
some variance depending on the temperature of the soldering iron.
3. When remove the electroluminescent panel from the PC board, be sure the solder has completely melted, the soldered pad on
the PC board could be damaged.
◆ Precautions for Operation
1.
2.
3.
4.
5.
6.
Viewing angle varies with the change of liquid crystal driving voltage (VO). Adjust VO to show the best contrast.
Driving the LCD in the voltage above the limit shortens its life.
Response time is greatly delayed at temperature below the operating temperature range. However, this does not mean the
LCD will be out of the order. It will recover when it returns to the specified temperature range.
If the display area is pushed hard during operation, the display will become abnormal. However, it will return to normal if it
is turned off and then back on.
Condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit. Therefore, it must be used
under the relative condition of 40°C , 50% RH.
When turning the power on, input each signal after the positive/negative voltage becomes stable.
Displaytech Ltd
LCD MODULE
64128K-RGB SERIES
Version : 1.2 P 21 of 21
◆ Storage
1.
2.
3.
4.
When storing LCDs as spares for some years, the following precaution are necessary.
Store them in a sealed polyethylene bag. If properly sealed, there is no need for desiccant.
Store them in a dark place. Do not expose to sunlight or fluorescent light, keep the temperature between 0°C and 35°C.
The polarizer surface should not come in contact with any other objects. (We advise you to store them in the container in
which they were shipped.)
Environmental conditions :
• Do not leave them for more than 168hrs. at 60°C.
• Should not be left for more than 48hrs. at -20°C.
◆ Safety
1.
2.
It is recommended to crush damaged or unnecessary LCDs into pieces and wash them off with solvents such as acetone and
ethanol, which should later be burned.
If any liquid leaks out of a damaged glass cell and comes in contact with the hands, wash off thoroughly with soap and
water.
◆ Limited Warranty
Unless agreed between DISPLAYTECH and customer, DISPLAYTECH will replace or repair any of its LCD modules
which are found to be functionally defective when inspected in accordance with DISPLAYTECH LCD acceptance standards
(copies available upon request) for a period of one year from date of shipments. Cosmetic/visual defects must be returned to
DISPLAYTECH within 90 days of shipment. Confirmation of such date shall be based on freight documents. The warranty
liability of DISPLAYTECH limited to repair and/or replacement on the terms set forth above. DISPLAYTECH will not be
responsible for any subsequent or consequential events.
◆ Return LCM under warranty
No warranty can be granted if the precautions stated above have been disregarded. The typical examples of violations are :
• Broken LCD glass.
• PCB eyelet’s damaged or modified.
• PCB conductors damaged.
• Circuit modified in any way, including addition of components.
• PCB tampered with by grinding, engraving or painting varnish.
• soldering to or modifying the bezel in any manner.
Module repairs will be invoiced to the customer upon mutual agreement. Modules must be returned with sufficient
description of the failures or defects. Any connectors or cable installed by the customer must be removed completely without
damaging the PCB eyelet’s, conductors and terminals.
n REVISION RECORD
VERSION
1.0
1.1
1.2
CHANGES
Initial revision
Correct mistake on P7 (Mechanical drawing)
Power Supply for Logic and LCD inside ABSOLUTE MAXIMUN RATINGS was
corrected
DATE
7 April 2008
7 May 2008
10 June 2008
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Displaytech:
64128K FC BW-RGB
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