How does a screen work?

Answer 1

different layers of different liquids are placed behind a sheet of carbon. those fluids are charged with energy and give off different colour glows, then charged in tight sequence together to form a picture

Answer 2

An LCD Screen/monitor (Not a crt as these are just about obsolete)

An LCD monitor is made with two specially treated plates of polarized glass pressed together. Between these plates is a liquid crystal material which responds to an electrical current by allowing different wavelengths of light through at various points across its surface. Instead of creating points of light, the entire surface of an LCD monitor is to block out the majority of light, to allow only specific wavelengths, interpreted as colors by our brains, through the front of the monitor to or eyes. A backlight emits a continuous stream of light covering the entire back of the monitor, at all visible wavelengths.

The electrical current created by the signal sent from the computer graphics card causes the liquid crystal material to block out different wavelengths of light across its face to create the general shapes and colors of an image. Behind the monitor's face but in front of the liquid crystal is a matrix of transistors connected to pixels on the screen's face. This matrix is so thin that it appears to be transparent. But when a varying current runs through it, the same current as the one manipulating the liquid crystal, it causes certain pixels to light up, adding definition to the overall color passing through from the backlight

Answer 3

its a technology that uses more information for like teachers and students ect