Do you know what LCD is?
What is LCD Video Wall ?
The structure of LCD splicing screen is to place a liquid crystal cell in two parallel glass substrates, a TFT (thin film transistor) is arranged on the lower substrate glass, and a color filter is arranged on the upper substrate glass, and the signal and voltage on the TFTare changed to control the liquid crystal molecules. Rotate the direction, so as to control whether the polarized light of each pixel is emitted or not to achieve the display purpose.
indoor lcd video wall are used in various scenarios.
Advertisement lcd screen rely on polarizing filters (sheets) and the light itself. Natural light is scattered randomly in all directions. A polarizing filter is actually a series of increasingly thin parallel lines. The lines form a net that blocks all light rays that are not parallel to the lines. The line of the polarizing filter is exactly perpendicular to the first, so it completely blocks the 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 filter.