How to distinguish between LCD screen and LCD backlight

First, the operation Note: 1, the display is made of glass, do not impose mechanical shock, such as falling from a high level. 2, if the display is damaged, the internal LCD leakage, do not make it into the mouth. If you get on your clothes or skin, wash it quickly with soap and water. 3, do not on the display surface or, must be properly grounded. C, in order to reduce the generation of static electricity, do not carry out in a dry environment assembly and other work. D, LCD module has a layer of protective film. Be careful when tearing this layer of protective film, as it may cause static electricity. 2, to minimize electrode corrosion. Water droplets, moisture condensation or high temperature environments may accelerate electrode corrosion. Second, the other: 1, in the low temperature (below the storage temperature range), the liquid crystal will lead to directional defects or produce bubbles (black or white). The bubble is also generated when the LCD display module is strongly vibrated at low temperatures. 2, if the LCD module for a long time to work and display the same pattern, the pattern will be the same as the phantom retained on the screen and there will be subtle differences in contrast. If you want to regain the normal working condition, you can temporarily stop using it for a while. It is worth noting that this phenomenon does not adversely affect the reliability of performance.