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Use and maintenance of LCD module
2011-10-31 by seoer1
1) access to the power module and disconnect the power must be carried out according to the timing diagram. That is, must be the positive supply (5 ± 0.25V) input to the input signal level. If access to the power and stability before, after or disconnect the input signal level, the IC will be damage to the module, the module is damaged.
2) dot matrix LCD modules  is a high large ones display devices, display contrast, viewing angle and temperature, driving voltage great deal. So Vee should be adjusted to the optimum contrast ratio, viewing angle stops. If Vee tune too high, not only will affect the show, but also affect the life of display devices.
3) The lower limit of the specified operating temperature range used, indicating the response is very slow. The upper limit of the specified operating temperature range used, the entire display surface will be black, it is not damaged, recovery temperature range, you can return to normal.
4) hard push on color LCD display part, an exception will be shown, to cut off power and re-access can be restored.
5) liquid crystal display device or module surface, fogging, do not power work, because when the electrode from the chemical reaction, resulting in disconnection.
6) The term used when the sun and bright light will produce residual cover parts of the image.
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