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STANDARD
PRODUCT
DOC.
SPEC.
MODULE
NO.
PAGE
21
(1) Do not alter, modify or change the 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. In particular, do not forcibly pull or bend the I
O cable or the backlight cable.
(7) In order to avoid the cracking of the FPC,you should to pay attention to the area of FPC where the FPC was bent .the edge
of coverlay;the area of surface of Ni-Au plating,the area of soldering land,the area of through hole.
18-3 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. 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.
(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.
18-4 PRECAUTIONS FOR OPERATION
(1) Viewing angle varies with the change of liquid crystal driving voltage (VO). Adjust VO to show the best contrast.
(2) Driving the LCD in the voltage above the limit shortens its life.
(3) 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.
(4) 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.
(5) 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.
(6) Condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit. Therefore, it must be used
under the relative condition of 40C , 50% RH.
(7) When turning the power on, input each signal after the positive/negative voltage becomes stable.
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