![]() To watch television on a plasma display, one has to hook it up to a separate unit So, plasmaĭisplays are just monitors that display a standard video signal. In a Television that takes a television signal (the one coming from a cable or antennae wire) and interprets it to create a video image. Most plasma displays aren't technically televisions, because they don't have a television tuner. Varies the intensities of the different lights to produce a full range of colors. Just like a CRT television, the plasma display Plasma Televisions – The basic idea of a plasma display is to illuminate tiny colored fluorescent lights to form an image.Įach pixel is made up of three fluorescent lights - a red light, a green light and a blue light. In a plasma with an electrical current running through it, negatively charged particles are rushing toward the positively chargedĪrea of the plasma, and positively charged particles are rushing toward the negatively charged area. With a missing electron, an atom loses its balance. The free electrons collide with the atoms, knocking loose other electrons. If you introduce many free electrons into the gas by establishing an electrical voltage across it, the situation changes very ![]() The negatively charged electrons perfectly balance the positively charged protons, so the atom has a net charge of zero. That is, the individual gas atoms include equal numbers of protons (positively charged particles in the atom's nucleus) andĮlectrons. Under normal conditions, a gas is mainly made up of uncharged (electrically charged atoms) and electrons (negatively charged particles). What is Plasma? The central element in a fluorescent light is a plasma, a gas made up of free-flowing ions They are now replaced by new technology called ![]() ByĬontrolling the voltages in the coils, you can position the electron beam at any point on the screen.īut enough about regular older designed Televisions, they are on the way out. One set of coils creates a magnetic field that moves the electron beam vertically, while another set moves the beam horizontally. These coils are able to create magnetic fields inside the tube, and the electron beam responds to the fields. That's why, if you look inside any TV set, you will find that the tube is wrapped in coils of wires. "steer" the beam - the beam will always land in a tiny dot right in the center of the screen. However, in this diagram you can see no way to Inside the tube to soak up the electrons that pile up at the screen-end of the tube. There is a cathode and a pair (or more) of anodes. Screen is coated with phosphor, which glows when struck by the beam. This tight, high-speed beam of electrons flies through the vacuum in the tube and hits the flat screen at the other end of the tube. In a TV'sĬathode ray tube, the stream of electrons is focused by a focusing anode into a tight beam and then accelerated by an accelerating anode. The anode is positive, so it attracts the electrons pouring off the cathode. Pour off a heated cathode into the vacuum.Įlectrons are negative. Heated filament is in a vacuum created inside a glass "tube." The "ray" is a stream of electrons that naturally In a cathode ray tube, the "cathode" is a heated filament (similar to a regualar light bulb). For example, you could refer to the positive terminal of a battery as the anode and the negative terminal as the cathode. The terms anode and cathode are used in electronics as synonyms for positive and negative Let's start with the CRT, however, because CRTs are the most common way of Like this at an outdoor event like a football game. It is even possible to make a television screen out of thousands of ordinary 60-watt light bulbs! You may have seen something The average American spendsīetween two and five hours a day glued to "the tube"!Īlmost all TVs in use today rely on a device known as the cathode ray tube, or CRT, to display their Set or TV, you are able to receive news, sports, entertainment, information and commercials. Television is certainly one of the most influential forces of our time. Library Contents Search the Library RV Tech Library Help Page Site Map About Us Tiffin RV Network TRVN Classifieds Campground Reviews Photo Gallery TRVN StoreĪppliances Batteries Boondocking/Dry Camping Chassis Clubs & Forums Electrical Electronics Engines Exterior Maintenance Generators Heating & Air Conditioning Interior Maintenance Misc Items Operating Tips Plumbing Red Bay Safety & Health Storage Supplier Contacts Tires and Wheel Rims Towing Transmissions Weighing RV Tech Library - Television Screens Tiffin RV Network Home
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