The structure of a CRT monitorThe work of the CRT screen. Is running inside the vacuum tube. To have the Heater Element (filament) When an electric current is flowing through to heat up. Make the electrons orbiting the nucleus out of the circle of atoms. In a molecule of gas contained within the tube then is the electric field from the metal plate with holes drilled into, for this element, which is placed in front of voltage with a high pressure (High Volts), which causes the ion of inert gas and glow blue, which surface of the monitor. Due to the energy of the electron beam that is tending to fall skin screen. Specifically, we control the size and location of the incident electrons. With the use of electric or magnetic field using magnetic field holds the width of the picture tube, khlo. Later it evolved to enhance the clarity and the color depth with the use of an electron gun (Electron Gun) along with increasing number of electrical magnetic field up the neck of the picture tube. When the electron beam through the neck, would be controlled by the gunships make (Scan), electron beam in tending to the incident lamp screen surface at the desired position by using the electromagnetic coils, according to deviation. After the electrons, tending to fall on the surface of the monitor that is plastered with fotfo coating (Phosphor — chemicals that will glow when an electron came falling). The result is light that is bright and dark spots on the screen. For the color screen. Beam of electrons shot before fotfo will have to pass through the section, called the mask (Shadow Mask) that there are holes in the metal plate by point of fotfo. When the Act enables high-accuracy electron beam up. The distance between the holes in the mask (Shadow Mask) is the distance between each dot that appears on the screen with the. We called the dot pitch monitor with a dot pitch low will have higher contrast. Each point on the screen color will contain fotfo 3 point is red, green and blue. One point. Shoot the electrons will start from the upper left and horizontally. At the end of the screen it would go back to the beginning of the next row to which to move the horizontal electron. From the end of one row to the beginning of the next row in this. We call it a gunships test raster (Raster Scanning).
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