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LCD module Note
2011-10-28 by seoer1
LCD module supplier is the liquid crystal device and control, drive circuit and the circuit board PCB assembly with components. He can be directly connected to the computer. This module, in addition to general liquid crystal display device should be noted that when using the Notes, but also in the assembly, use note the following:
1 dealing with protective film
Finished in the liquid crystal display module packed surface layer of protective film to prevent the assembly tarnished surface. Before the end of the assembly shall not be thrown off the machine, so as not to stain or tarnish the display surface.
(2) installation of liner
Between the module and the front panel is best to install a liner around about 0.1MM. Panel should be absolutely flat. A guarantee that after the assembly does not produce twisting forces. And to improve seismic performance.
3 prevent static electricity
The control module, the drive circuit is low voltage, micropower CMOS circuits can easily be electrostatic breakdown, while the body may sometimes be picked up to several hundreds of volts of high voltage V or static electricity, so in operation, assembly and use should be careful to prevent static electricity. To this end:
1) Do not touch hands free outside the wire, the circuit board and metal frame.
2) If you must directly contact should be made to maintain the same potential of the human body a module, or a good body ground.
3) the use of electric soldering iron should be grounded, there is no leakage.
4) operation of electric tools such as the cone must be well grounded, there is no leakage.
5) Do not use a vacuum cleaner for cleaning. Because it will generate strong static electric.
6) The air is dry, static electricity will, therefore, should be in the workplace humidity RH60% or more.
7) on the ground, table, chairs, shelves, carts and tools should form a resistance between the contactswith color TFT LCD module, in order to maintain the same potential, otherwise will generate static electricity.
8) Remove or replace bags or mobile location, also virtual extra care not to static electricity. Do not arbitrarily change or discard the original packaging.
Electrostatic breakdown is irreparable damage, be sure to pay attention, not the effect.
4 Notes on the assembly operation.
Module is carefully designed and assembled, Please do not self-processing and finishing.
1) are not free to distort the metal frame grasping and removal.
2) Do not free to modify the processing PCB board outline, mounting holes, wiring and components.
3) modify conductive strip.
4) Do not modify any internal support.
5) Do not touch, throwing, bending, twisting modules.
5 welding
External welding module, interface circuit, under the regulations if the operation should be.
1) Soldering iron temperature less than 280 ℃
2) The welding time is less than 3-4S
3) Welding materials: eutectic, low melting point.
4) Do not use acid flux.
5) Repeat the soldering no more than 3 times, and each iteration requires interval of 5 minutes
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