Plasma Screen TV
Gas Using In Plasma Screen TV
plasma screen televisions
The major advantage of Plasma Screen TV technology is using the gas instead Liquid Crystal as used in the LCD Screen TVs technology. The using of gas gives the possibility to produce a very thin display panel; it’s only about 6 cm (2.5 inches) thick, while the total thickness, including electronics, is less than 10 cm (4 inches). The other significant advantage is a very large size Plasma Screen TV display from 37 to 150 inches diagonally could be produced.
Plasma Screen TV displays are bright, around 1000 lux or higher for the module. It has a wide color gamut. Compared to the lighter grey of the unilluminated parts of an LCD Screen, Plasma Screen TV has a very low-luminance black level.
A Plasma Screen TV Functional details
In the Plasma Screen TV the xenon and neon gas is contained in hundreds of thousands of tiny cells sandwitched by two plates of glass.
Long electrodes are also put together between the glass plates, they are placed in front of and behind the cells. The address electrodes sit behind the cells, along the rear glass plate. The transparent display electrodes, which are surrounded by an insulating dielectric material and covered by a magnesium oxide protective layer, are mounted in front of the cell, along the front glass plate.
Control circuitry charges the electrodes that cross paths at a cell, creating a voltage difference between front and back and causing the gas to ionize and form a plasma. As the gas ions rush to the electrodes and collide, photons are emitted.
In Plasma Screen TV,every pixel is made up of three separate subpixel cells, each with different colored phosphors, a red, a green and a blue light phosphor. These colors blend together to create the overall color of the pixel.
By varying the pulses of current flowing through the different cells thousands of times per second, the control system can increase or decrease the intensity of each subpixel color to create billions of different combinations of red, green and blue. Plasma Screen TV displays use the same phosphors as CRTs, which accounts for the extremely accurate color reproduction.
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