Datasheet
DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
Version: 2.1.1 PAGE: 28
11. PRECAUTIONS IN USING
11.1 Liquid crystal display (LCD)
The LCD panel is made up of glass, organic fluid and polarizer. When handling,
please pay attention to the following items:
1) Keep the operation and storage temperature of the LCD within the range
specified in the LCD specification. Otherwise, excessive temperature and
humidity would cause polarization degradation, bubble generation or polarizer
peel-off.
2) Prevent it from mechanical shock by dropping it from a high place, etc.
3) Don’t contact, push or rub the exposed polarizers with anything harder than
HB pencil lead.
4) Avoid using chemicals such as acetone, toluene, ethanol and isoropylalcohol
to clean the front/rear polarizers and reflectors, which will cause damage to
them.
5) Wipe off saliva or water drops immediately. Contact with water over a long
period of time may cause deformation or color fading. The LCM is assembled
and adjusted with a high degree of precision.
6) Do not put or attach anything on the display area. Avoid touching the display
area with bare hand.
11.2 Precaution for handling LCD modules
The LCM is assembled and adjusted with a high degree of precision, do not applying
excessive shocks to it or making any alterations or modifications to it, the following
precautions should be taken when handing.
1) Do not drop, bend or twist the module.
2) Do not alter or making any modification on the shape of the metal frame.
3) Do not change the shape, the pattern wiring or add any extra hole on the PCB.
4) Do not modify or touch the zebra rubber strip(conductive rubber) with another
object.
5) Do not change the positions of components on the PCB.
11.3 Electro-static discharge control
Careful attention should be paid to control the electrostatic discharge of the modules,
since the modules contain no. of CMOS LSI.
1) Make sure you are grounded properly when remove the module from its
antistatic bag. Be sure that the module and have the same electric potential.
2) Only properly grounded soldering iron should be used.
3) Modules should be stored in antistatic bag or other containers resistant to
static after remove from its original package.
4) When using the electric screw-driver is used, make sure the screw driver had
been ground potentiality to minimize the transmission of EM wave produced
by commutator sparks.
5) In order to reduce the generation of static electricity, a relative humidity of
50-60% is recommended.