Question

What is the material used in crt display?

Answer 1

The inside of the large end of a CRT is coated with a fluorescent material that gives off the light when struck by electrons. This coating is necessary because the electron beam itself is invisible. The material used to convert the electrons’ energy into visible light is a PHOSPHOR. Many different types of phosphor materials are used to provide different colored displays and displays that have different lengths of PERSISTENCE (duration of display)