What are the reasons why the backlight does not light up
Apr 18, 2022
Some customers encounter the backlight is not bright, what are the reasons for this, let's analyze together.
1: LED lights directly broken, it will lead to direct can not work, this is usually we call dead lights, according to the production process we will go through the full inspection of the factory, so this phenomenon rarely occurs.
2: There is another kind of false welding, is a bad welding, in this case the detection of words not very good detection, only the actual use of this problem can be found.
3: backlighting positive and negative polarity reversed, this is mainly in the production of workers carelessness will appear in this case, this full inspection words can also be detected.
