Main Features Of LCD Screen

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  The first feature of LCD is that the liquid crystal must be poured between two planes with thin grooves to work properly. The grooves on these two planes are perpendicular to each other (intersecting at 90 degrees), that is, if the molecules on one plane are aligned north-south, the molecules on the other plane are aligned east-west, and the molecules located between the two planes are Forced into a 90-degree twist. Since the light travels along the direction of the arrangement of the molecules, the light is also twisted by 90 degrees as it passes through the liquid crystal. But when a voltage is applied to the liquid crystal, the molecules are rearranged vertically, allowing the light to shoot straight out without any twisting.

The second feature of LCD is that it relies on polarizing filters and the light itself. Natural light scatters randomly in all directions. Polarizing filters are actually a series of thinner and thinner parallel lines. The lines form a net that blocks all light that is not parallel to these lines, and the lines of the polarizing filter are exactly perpendicular to the first, so it completely blocks light that is already polarized. The light will only penetrate if the lines of the two filters are perfectly parallel, or if the light itself has been twisted to match the second polarizing