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LM7MS623

DEVICE SPECIFICATION for Passive Matrix Monochrome LCD Module (640X240 dots)

Sharp Electronics 

SHARP

SPEC No.

LC99404

MODEL

No.

LM7MS623

PAGE

2

7) Since CMOS LSIs are equipped in this module, following countermeasures must be taken to avoid

electrostatics charge.

l-Operator

Electrostatic shielding clothes shall be had because it is feared that the static electricity is electrified to

human body in case that operator have a insulating garment.

2.Equipmeot

There is a possibility that the static electricity is charged to equipment which have a function of peeling or

mechanism of friction(EX: Conveyer, soldering iron, working table), so the countermeasure(electrostatic

earth:1 X lo8 Q) should be made.

3.Floor

Floor is a important part to leak static electricity which is generated from human body or equipment.

There is a possibility that the static electricity is charged to them without leakage in case of insulating

floor,so the countermeasure(electrostatic earth: 1 X 10’ Q ) should be made.

4.Humidity

Humidity of working room may lower electrostatics generating material’s resistance and have something to

prevent electrifying. So, humidity should be kept over 50% because humidity less than 50 % may increase

material’s electrostatic earth resistance and it become easy to electrify.

S.Transportation/storage

The measure should be made for storage materials because there is a possibility that the static electriicity,

which electrify to human body or storage materials like container by friction or peeling, cause the dielectric

charge.

6.0thers

The laminator is attached on the surface of LCD module to prevent from scratches, fouling and dust.

It should be peeled off unhurriedly with using static eliminator.

And also, static eliminator should be installed to prevent LCD module from electrifying at assembling line.

8) Don’t use any materials which emit gas from epoxy resin(amines’ hardener) and silicon adhesive

agent(dealcohol or deoxym) to prevent change polorizer color owing to gas.

9) Avoid to expose the module to the direct sun-light, strong ultraviolet light, etc. for a long time.

10) If stored at temperatures under specified storage temperature, the LC may freeze and be deteriorated.

If storage temperature exceed the specified rating, the molecular orientation of the LC may change to that of

a liquid, and they may not revert to their original state. Therefore, the module should be always stored at norma

room temperature.

11) Disassembling the LCD module can cause permanent damage and should be strictly avoided.

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