what is plasma?

Answer 1

since you asked this question under group monitors and not medical, here it is

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 fluourescent lights -- a red light, a green light and a blue light. Just like a CRT television, the plasma display varies the intensities of the different lights to produce a full range of colors.

The central element in a fluorescent light is a plasma, a gas made up of free-flowing ions (electrically charged atoms) and electrons (negatively charged particles). Under normal conditions, a gas is mainly made up of uncharged particles. That is, the individual gas atoms include equal numbers of protons (positively charged particles in the atom's nucleus) and electrons. The negatively charged electrons perfectly balance the positively charged protons, so the atom has a net charge of zero.

If you introduce many free electrons into the gas by establishing an electrical voltage across it, the situation changes very quickly. The free electrons collide with the atoms, knocking loose other electrons. With a missing electron, an atom loses its balance. It has a net positive charge, making it an ion.

In a plasma with an electrical current running through it, negatively charged particles are rushing toward the positively charged area of the plasma, and positively charged particles are rushing toward the negatively charged area.

Answer 2

Actually plasma is fourth state of matter...!!!
But u mean Plasma Monitor then .......!!!!!!!!!!! The concept for plasma display panels was first conceived in July 1964 at the University of Illinois (USA). The first displays were nothing more than points of light created in laboratory experiments. From then on, the technology was developed and improved and by the late 60's, it had become advanced enough to allow the scientists to construct geometric shapes. Further development was limited, scientists were restricted by the materials that were available, so screens were small, and image quality was low. Today the progression in high speed digital processing, materials and advance manufacturing technology, has made full colour, bright plasma displays possible. Once what was only thought of as Science Fiction is now available and ready to use in a host of new and exciting ways.

Answer 3

In physics and chemistry, a plasma is typically an ionized gas, and is usually considered to be a distinct state of matter in contrast to solids, liquids, and gases because of its unique properties. "Ionized" means that at least one electron has been dissociated from a proportion of the atoms or molecules. The free electric charges make the plasma electrically conductive so that it responds strongly to electromagnetic fields.

You can read more at the website listed

Answer 4

In terms of Biology Plasma is a part of blood
In terms of Physics it is fourth state of matter i.e. It is ions.
U r question is under monitors. So here it is a monitor using fourth state of matter (plasma) for displaying.

Answer 5

this is simple. Lets make the example kool-aid. The water would be plasma and the kool-aid mix would be blood cells etc. Just what makes it a liquid

Answer 6

A plasma display panel (PDP) is a type of flat panel display now commonly used for large TV displays. Many tiny cells located between two panels of glass hold an inert mixture of noble gases (neon and xenon). The gas in the cells is electrically turned into a plasma which then excites phosphors to emit light.

The plasma display panel was invented at the University of Illinois at Urbana-Champaign by Donald L. Bitzer, H. Gene Slottow, and graduate student Robert Willson in 1964 for the PLATO Computer System. The original monochrome (usually orange or green, sometimes yellow) panels enjoyed a surge of popularity in the early 1970s because the displays were rugged and needed neither memory nor circuitry to refresh the images. A long period of sales decline followed in the late 1970s as semiconductor memory made CRT displays cheaper than plasma displays. Nonetheless, plasma's relatively large screen size and thin profile made the displays attractive for high-profile placement such as lobbies and stock exchanges.

In 1983, IBM introduced a 19-inch orange-on-black monochrome display (model 3290 'information panel') which was able to show four simultaneous IBM 3270 virtual machine (VM) terminal sessions. That factory was transferred in 1987 to startup company Plasmaco, which Dr. Larry F. Weber, one of Dr. Bitzer's students, founded with Stephen Globus, and James Kehoe, who was the IBM plant manager. In 1992, Fujitsu introduced the world's first 21-inch full-color display. It was a hybrid, based upon the plasma display created at the University of Illinois at Urbana-Champaign and NHK STRL, achieving superior brightness. In 1996, Matsushita Electrical Industries (Panasonic) purchased Plasmaco, its color AC technology, and its American factory. In 1997, Pioneer started selling the first plasma television to the public.

Screen sizes have increased since the 21-inch display in 1992. The largest plasma video display in the world was shown at the (Consumer Electronics Show) in Las Vegas, Nevada, U.S.A., in 2006, measuring 103 inches and was made by Matsushita.

Until quite recently, the superior brightness, greater color spectrum, and wider viewing angle of color plasma video displays, when compared with LCD televisions, made them one of the most popular forms of display for HDTV Flat panel displays. For a long time it was widely believed that LCD technology was suited only to smaller sized televisions, and could not compete with plasma technology at larger sizes, particularly 40 inches and above. As of late 2006, Matsushita's flat-panel lineup for 40" screens or larger is composed only of plasmas, while their smaller to mid-sized line is LCDs.

However, since then, improvements in LCD technology have narrowed the technological gap. The lower weight, falling prices, higher available resolution which is crucial for HDTV, and lower electrical power consumption of LCDs make them competitive against plasma displays in the television set market. As of late 2006, analysts note that LCDs are overtaking plasmas, particularly in the important 40" and above segment where plasma have previous enjoyed strong dominance a couple years before.

Answer 7

What Kind of Plsma...Display purpose televisions are now outdated...So forget Plasma...Go for LCD TVs....OK !!

Answer 8

http://en.wikipedia.org/wiki/Plasma

Answer 9

It is the fourth state of matter after solid,liquid and gasous forms

Answer 10

as we all have read abt 3 states of matter - solid, liquid and gases.
plasma is the 4th state of matter.
it is collection of electrons in the fluid.