When you want to draw a bright pixel on the screen, you point the beam of electrons in that direction and leave it on for a few microseconds. But how do you make a beam of electrons point in some direction? You could just move the whole electron gun, but this is going to be difficult since you have to move the gun really fast. To draw the pixels of the entire screen you need to sweep the beam of electrons left and right across the screen at a frequency of 40-100 [kHz].

The way a CRT does this is to through the Electric force which can deflect electrons left and right, up and down as necessary. Yes Luke, use the force, the electric force.

The TV signal that is transmitted over the air is actually telling you consist of the information The D-shaped monitor cables, are called VGA and a fluorescent screen, with internal or external means to accelerate and deflect the electron beam, used to create images in the form of light emitted from the fluorescent screen.

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