JEWEL HILL ELECTRONIC CO.,LTD.
11.3 ELECTRO-STATIC DISCHARGE CONTROL
Since this module uses a CMOS LSI, the same careful attention should be paid for electrostatic
discharge as for an ordinary CMOS IC.
(1) Make certain that you are grounded when handing LCM.
(2) Before removing 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
workbenches to the ground potential.
(6) To reduce the generation of electro-static discharge, be careful that the air in the work is not
too dried. A relative humidity of 50%-60% is recommended.
11.4 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 will shorten its lifetime.
(3) 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.
(4) 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 on.
(5) Condensation on terminals can cause an electrochemical reaction disrupting the terminal
circuit. Therefore, this product must be used and stored within the specified condition of
23±5°C, 45±20%RH.
(6) When turning the power on, input each signal after the positive/negative voltage becomes stable.
11.5 SAFETY
(1) 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.
(2) If any liquid leaks out of a damaged glass cell and comes in contact with the hands, wash off
thoroughly with soap and water.
GB12232A
VER: 4.0
- 20 -
Issue date: 2006/08/01
JHE [ JEWEL HILL ELECTRONIC ]
