In the past, vast majority of televisions were built using the same technology of cathode ray tube in a CRT television, a gun produces beams of electrons that are negatively charged inside a glass tube. These electrons energize phosphor atoms at the wide end this tube lightening up the phosphor atoms. The images are produced by lightening up of the phosphor coating thus producing the images and sounds in the screen. This extremely large and heavy screens have been overtaken time and technology that is gradually being replaced by plasma TV. This is a new alternative, it has a built on store shelves: These televisions have a wide screen that is about six inches thick.the technology of this television is explained bellow.

Its basic idea is to illuminate tiny, collared fluorescent lights that form images. This pixel is made up of three different fluorescent lights, that is red green and blue light. It display different intensities of this lights thus producing full range of colours.

The fundamental component in fluorescent light is plasma; it is gas constituting ions freely flowing i. E., electrically charged atoms, it also constitutes of electrons. In normal circumstances, a gas is always made up of uncharged particles that has equal numbers of electrons and protons so that the net realized charge is zero.

By adding many electrons into the gas, using an electrical current, the electrons collide with the atoms, discharging other electrons within them, thus changing the composition of the atoms. This turns these atoms into ions producing photons containing ultraviolet light.

Neon and Xenon atoms used in the screens release light photons when charged, they are controlled in very large numbers of tiny cells placed in between this glass plates, in conjunction with long electrodes placed on either sides of the tiny cells. They come up to electrodes sit placed behind these cells with the back glass plate and transparent exhibit electrodes, covered with an insulator item. It is also covered using a magnesium oxide safe layer. This are climbed above this cells that is along the face glass plate. These two electrodes go to the entire screen, hence displaying electrodes in horizontal rows. The address electrodes are equally displayed in vertical columns.

When this electrodes that are intersecting gets charged, they make electric current to flows through the gas in this cell enabling it to produce ultraviolet photons. These photons interact with phosphor materials that are coated from the inner part of the cell. This phosphor will in turn produce visible photons of light.

Each pixel contain three different sub pixel cells, this sub pixel cells have different colored phosphors, that is green, red and blue. When this sub pixel gets excited they produce coloured lights, this lights blend together creating the overall color of a pixel.

By continually varying these current pulses, control system of the computer in each TV set increase or decrease the intensity level of each sub pixel colour creating as many as 9 billion combinations of colors. This is what we see in our “plasma TVs“.