64128K Datasheet, PDF (19/22 Pages) List of Unclassifed Manufacturers – ABSOLUTE MAXIMUM RATINGS

Displaytech Ltd _{LCD MODULE 64128K SERIES Version : 1.2 P 19 of 21}
◆ Storage Precautions
When storing the LCD modules, avoid exposure to direct sunlight or to the light of fluorescent lamps. Keep the modules in
bags (avoid high temperature / high humidity and low temperatures below 0°C). Whenever possible, the LCD modules should be
stored in the same conditions in which they were shipped from our company.
◆ Others
Liquid crystals solidify under low temperature (below the storage temperature range) leading to defective orientation or the
generation of air bubbles (black or white). Air bubbles may also be generated if the module is subject to a low temperature.
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.
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.
n USING LCD MODULES
◆ Liquid Crystal Display Modules
LCD is composed of glass and polarizer. Pay attention to the following items when handling.
1. Please keep the temperature within specified range for use and storage. Polarization degradation, bubble generation or
polarizer peel-off may occur with high temperature and high humidity.
2. Do not touch, push or rub the exposed polarizers with anything harder than an HB pencil lead (glass, tweezers, etc.).
3. N-hexane is recommended for cleaning the adhesives used to attach front/rear polarizers and reflectors made of organic
substances which will be damaged by chemicals such as acetone, toluene, ethanol and isopropylalcohol.
4. When the display surface becomes dusty, wipe gently with absorbent cotton or other soft material like chamois soaked in
petroleum benzin. Do not scrub hard to avoid damaging the display surface.
5. Wipe off saliva or water drops immediately, contact with water over a long period of time may cause deformation or color
fading.
6. Avoid contacting oil and fats.
7. Condensation on the surface and contact with terminals due to cold will damage, stain or dirty the polarizers. After products
are tested at low temperature they must be warmed up in a container before coming is contacting with room temperature air.
8. Do not put or attach anything on the display area to avoid leaving marks on.
9. Do not touch the display with bare hands. This will stain the display area and degradate insulation between terminals (some
cosmetics are determinated to the polarizers).
10. As glass is fragile. It tends to become or chipped during handling especially on the edges. Please avoid dropping or jarring.
◆ Installing LCD Modules
The hole in the printed circuit board is used to fix LCM as shown in the picture below. Attend to the following items when
installing the LCM.
1. Cover the surface with a transparent protective plate to protect the polarizer and LC cell.
2. When assembling the LCM into other equipment, the spacer to the bit between the LCM and the fitting plate should have
enough height to avoid causing stress to the module surface, refer to the individual specifications for measurements. The
measurement tolerance should be ±0.1mm.