1. Cathode Ray Tube Monitors
Cathode ray tube (English: cathode ray tube or CRT), invented by Karl Ferdinand Braun, is the appearance of a tube that is widely used in computer screens, video monitors, televisions and oskiloskop. CRT developed from the work of Philo Farnsworth used in all television sets until the late 20th century, and is the basis for the development of plasma screens, LCD TV and other forms of technology.
Before touching the phosphorus electrons, screen glass tubes electrons that penetrate a very thin plate punch called screens are almost as wide as the width of the display tube to focus the three spots color RGB (Red, Green, Blue) color screen to tube. Metal plate is very thin and sensitive to mangnit, if a strong magnet will change the shape of this plate so it is not flat and there was a tinge of color and random shots of electrons because they do not focus on the third point RGB spots, and this is called degausing.
In theory, CRT and LCD have a difference where CRTs use an electron is fired into the screen so that the color becomes an image. LCD has a constant light in the rear where the intensity of the brightness is different because of the closure / blockage of the molecules to the light passing through the panel.
Cathode rays (also called an electron beam) is the flow of electrons observed in vacuum tubes, vacuum glass tube that is equipped with at least two metal electrodes are given voltage, the cathode or the anode or negative electrode and a positive electrode. Electrons were first discovered as components of the cathode rays. In 1897, British physicist Joseph John Thomson showed that cathode rays consist of negatively charged particles that have never known, later called electrons. Cathode ray tube produces pictures in television sets and computer monitors earlier.
quote : wikipedia.org
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