The liquid crystal display uses two liquid crystal solutions in a polarizing material. When an electric current is passed through the liquid, the crystals are rearranged for imaging purposes.

Liquid crystal display (LCD) A type of display used in digital clocks and many portable computers. The LCD display uses two pieces of polarizing material with a liquid crystal solution between them. When current passes through the liquid, the crystals are rearranged so that light cannot pass through them.

Each crystal is like a shutter, allowing light to pass through and blocking it. Liquid crystal display (LCD) technology information products are currently developing towards the goal of light, thin, short, and small, and display products with a long history in computer peripherals are of course no exception.

Under the premise of being easy to carry and carry, traditional display methods such as CRT video tube displays and LED display boards are subject to factors such as excessive volume or huge power consumption, which cannot meet the actual needs of users.

The development of liquid crystal display technology is in line with the current trend of information products. Whether it is a right-angle display, low power consumption, small size, or zero radiation, it can allow users to enjoy a better visual environment.

What are the reasons that cause the LCD screen to be black?

Check if there is any problem with the host, and test if the host's line is loose. If the display light of the computer keyboard can be illuminated, it means that there is no problem with the host computer.

When the LCD display is blank, you first need to check whether the cable connecting the display to the computer is loose. If the cable is loose, the display may also be blank.

Focus on checking the following parts that are prone to problems, whether the fuse is blown, whether the rectifier bridge switch tube is broken down, whether the current-limiting protection resistor is blown, etc. These parts can be seen on the appearance as being burnt out

If the LCD screen is not caused by the host, check whether the display protection circuit is working because the voltage is too high or too low, and check whether its acceleration voltage is normal.