Datasheet

DEM 16227 SYH-LY Product Specification
VERSION: 2 PAGE: 10
12. PRECAUTION FOR USING LCD/LCM
LCD/LCM is assembled and adjusted with a high degree of precision. Do not attempt to make
any alteration or modification. The followings should be noted.
General Precautions:
l LCD panel is made of glass. Avoid excessive mechanical shock or applying strong pressure
onto the surface of display area.
l The polarizer used on the display surface is easily scratched and damaged. Extreme care
should be taken when handling. To clean dust or dirt off the display surface, wipe gently with
cotton, or other soft material soaked with isopropyl alcohol or ethyl alcohol, do not use water,
ketone or aromatics and never scrub hard.
l Do not tamper in any way with the tabs on the metal frame.
l Do not made any modification on the PCB without consulting DISPLAY.
l When mounting a LCM, make sure that the PCB is not under any stress such as bending or
twisting. Elastomer contacts are very delicate and missing pixels could result from slight
dislocation of any of the elements.
l Avoid pressing on the metal bezel, otherwise the elastomer connector could be deformed and
lose contact, resulting in missing pixels and also cause rainbow on the display.
l Be careful not to touch or swallow liquid crystal that might leak from a damaged cell. Any
liquid crystal adheres to skin or clothes, wash it off immediately with soap and water.
Static Electricity Precautions:
7. CMOS-LSI is used for the module circuit; therefore operators should be grounded whenever
he/she comes into contact with the module.
8. Do not touch any of the conductive parts such as the LSI pads; the copper leads on the PCB
and the interface terminals with any parts of the human body.
9. Do not touch the connection terminals of the display with bare hand; it will cause
disconnection or defective insulation of terminals.
10. The modules should be kept in anti-static bags or other containers resistant to static for
storage.
11. Only properly grounded soldering irons should be used.
12. If an electric screwdriver is used, it should be grounded and shielded to prevent sparks.
13. The normal static prevention measures should be observed for work clothes and working
benches.
14. Since dry air is inductive to static, a relative humidity of 50-60% is recommended.
Soldering Precautions:
1. Soldering should be performed only on the I/O terminals.
2. Use soldering irons with proper grounding and no leakage.
3. Soldering temperature:300±5℃
4. Soldering time: 2 to 3 second.
5. Use eutectic solder with resin flux filling.
6. If flux is used, the LCD surface should be protected to avoid spattering flux.
7. Flux residue should be removed.