Science has played a major role in the life of humanity. With the inventions and discoveries man was able to lead a easy and comfortable life.
The basic idea of a plasma display is to illuminate tiny coloured fluorescent lights to form an image. Each pixel is made up of three fluorescent lights - red, green and blue - which are evenly distributed on the screen. By combining these colours in different proportions, the television can produce the entire colour spectrum. The central element in a fluorescent light is a plasma, a gas made up of free - flowing ions and electrons.
Most plasma displays don't have a television tuner. Plasma displays are just monitors that display a standard video signal. To watch television on a plasma display, you have to hook it up to a separate unit that has its own television tuner, such as a VCR.
For the past 75 years, the vast majority of televisions have been built around the same technology: the cathode ray tube. The cathode ray tubes produce crisp, vibrant images which are bulky. In order to increase the screen width in a CRT set, you also have to increase the length of the tube. Consequently, any big - screen CRT television is going to weigh a ton and take up a sizable chunk of a room.
Recently, a new alternative has popped up on store shelves: the plasma flat panel display. These televisions have wide screens, but they are only about 6 inches thick.
The xenon and neon gas in a plasma television is contained in hundreds of tiny cells positioned between two plates of glass. Long electrodes are also between the glass plates, on both sides of the cells. The address electrodes cells, along the rear...