1:LCD technology is the pouring of liquid crystal between two planes lined with thin grooves. The grooves in the two planes are perpendicular to each other. If the molecules on one plane are aligned north-south and the molecules on the other plane are aligned east-west, the molecules between the two planes are forced into a 90-degree distortion. Light travels in the direction in which the molecules align, so when light passes through the liquid crystal, it also twists by 90 degrees. But when a voltage is applied to the liquid crystal, the molecules are rearranged vertically so that light can be directed away without distortion.

2: LCDS rely heavily on polarization filters and light itself. Natural light diffuses randomly in all directions. Polarization filters are actually parallel lines. These parallel lines form a network, and the lines of the polarizing filter are exactly perpendicular to the first line, so it completely blocks polarized light. Light can only be penetrated if the lines of the two filters are perfectly parallel, or if the light itself is distorted to match the second polarizing filter.

3: from the working principle of the LCD, whether it is a laptop or a desktop system, the LCD is composed of different parts of the layered structure. The LCD consists of two glass plates, about 1mm thick, separated by liquid crystal material. Because liquid crystal materials do not emit light, there are tubes on both sides of the display for light sources. However, on the back of the LCD screen, there are reflective films and backlight plates. Provides background light. The light emitted from the backlight enters the liquid crystal layer of the crystal after passing through the first polarization filter layer. The crystals in the liquid crystal layer are all contained in small cell structures, and one or more cells make up pixels on the screen. There are transparent electrodes between the glass plate and the liquid crystal material. Electrodes are divided into columns and rows. At the intersection of columns and rows, the optical rotation of the liquid crystal is changed by changing the voltage. Liquid crystal materials function like small light valves. On the periphery of the liquid crystal material are the control circuit and the driving part. When the electrodes in the LCD generate an electric field, the liquid crystal molecules are distorted, refracting light passing through them, and then filtered by a second filter to appear on the screen.