Datasheet

DEM 320240M TMH-PW-N Production Specification
Version: 1.1 PAGE: 19
12. HANDLING PRECAUTIONS
12.1 Mounting method
The LCD module consists of two thin glass plates with polarizes which easily be damaged. And since the
module in so constructed as to be fixed by utilizing fitting holes in the printed circuit board.
Extreme care should be needed when handling the LCD modules.
12.2 Caution of LCD handling and cleaning
When cleaning the display surface, Use soft cloth with solvent
[recommended below] and wipe lightly
●.Isopropyl alcohol
●.Ethyl alcohol
Do not wipe the display surface with dry or hard materials that will damage the polarizer surface.
Do not use the following solvent:
●.Water
●.Aromatics
Do not wipe ITO pad area with the dry or hard materials that will damage the ITO patterns
Do not use the following solvent on the pad or prevent it from being contaminated:
●.Soldering flux
●.Chlorine (Cl) , Sulfur (S)
If goods were sent without being silicon coated on the pad, ITO patterns could be damaged due to the
corrosion as time goes on.
If ITO corrosion happen by miss-handling or using some materials such as Chlorine (CI), Sulfur (S) from
customer, Responsibility is on customer.
12.3 Caution against static charge
The LCD module use C-MOS LSI drivers, so we recommended that you:
Connect any unused input terminal to Vdd or Vss, do not input any signals before power is turned on, and
ground your body, work/assembly areas, assembly equipment to protect against static electricity.
12.4 Packing
Module employ LCD elements and must be treated as such.
●.Avoid intense shock and falls from a height.
●.To prevent modules from degradation, do not operate or store them exposed direct to sunshine or high
temperature/humidity
12.5 Caution for operation
●.It is an indispensable condition to drive LCD’s within the specified voltage limit since the higher voltage then
the limit cause the shorter LCD life.
●.An electrochemical reaction due to direct current causes LCD’s undesirable deterioration, so that the use of
direct current drive should be avoided.
●.Response time will be extremely delayed at lower temperature then the operating temperature range and on
the other hand at higher temperature LCD’s how dark color in them. However those phenomena do not mean
malfunction or out of order with LCD’s, which will come back in the specified operation temperature.
●.If the display area is pushed hard during operation, some font will be abnormally displayed but it resumes
normal condition after turning off once.
●.A slight dew depositing on terminals is a cause for electro-chemical reaction resulting in terminal open
circuit.
Usage under the maximum operating temperature, 50%Rh or less is required.