The slim and thin plasma TV sets have become desired products worldwide. Learn the basics of how the plasma technology works.

Television technology for the past 75 years has been based on the technology of CRT or cathode-ray-tube. In it there are guns that fire beams of electrons, which are particles that are negatively charged inside a tube, made of glass. These electrons cause excitement in phosphor atoms located at the screen end or the end gets lighted up. The phosphor coating being lighted up on different areas with various colours with dissimilar intensities produces the image on the screen.

The images are sharp and vibrant but the sets are bulky. Thus a big screen will result in a television set that will take up a good size of the room! With necessity being the mother of invention, this difficulty has led to the popping up of a new technology leading to plasma flat panels for display. These sets have wide screen but are only a few inches thick.

A video signal lights up thousands of dots inside the monitor or television. These dots are known as pixels having highly energized electron beams. Usually pixels have three colours – blue, red and green. These are evenly spread out across the screen. Combining these basic colours in different proportions produces the entire colour show. The fundamental idea of the plasma unit is to light up minute coloured lights that are fluorescent to create the image. Each pixel comprises of three of these lights – red, green and blue. Similar to the CRT, the plasma television alters the intensity of the various lights to bring about the effect of the full spectrum of colours.

The first generation of plasma displays did not have tuners that receive the television signal and interprets that to make a video image. But today digital tuners have been assembled to the main unit.

Plasma is the central element in the fluorescent light. It is a gas that has free flowing ions and electrons. Ions are atoms that have been electrically charged and electrons are particles that have been negatively charged. Normally a gas is made of uncharged particles. Thus a gas atom usually has equal number of protons and electrons atom resulting in zero total charge. But the scene rapidly changes with the introduction of free electrons in the gas. This leads to the setting up across it of electrical voltage.

Free electrons clash with the atoms dislodging other electrons. When an electron goes missing the atom loses its balances. It becomes and ion. In the case of plasma there is electric current passing through. This causes particles that are negatively charged to rush to that region of the plasma that is positively charged; on the reverse the particles, which are positively, charged hurry towards the area that is negatively charged.

There is a mad rush and one collides into another constantly. The gas atoms in the plasma get excited. Photons of energy are now released. The atoms used in plasma displays are neon and xenon atoms. The gases of these are contained in thousands of tiny cells sandwiched between two glass plates.

Thus to sum up we find that the Plasma TV forms a picture from plasma or gas that is filled with atoms of xenon and neon as well as innumerable electrically charged electrons and atoms that bump and collide to release energy or power. The net result is that without extra bulk, the viewing area gets enlarged. Rather than being fat the Plasma TV is slim and thin. The quality of picture is par excellence but the draw back is that the cost is beyond the reach of many people.

This article can also be accessed in portuguese language from the Article section of page www.polomercantil.com.br/televisores.php

Roberto Sedycias works as IT consultant for Polomercantil

By Roberto Sedycias Published: 1/28/2008 Homepage is at 32 televisions or here are some related posts: Cops S21E15 HDTV XviD-XOXO Feel free to post your Cops S21E15 HDTV XviD-XOXO torrent, subtitles, samples, free download, quality, NFO, rapidshare, megaupload, filefactory, netload, crack, serial, requirements or whatever-related comments here. Sony’s KDL42V4100 42” BRAVIA LCD HDTV Now Sony’s KDL42V4100 42” BRAVIA LCD HDTV is 1400 usd. Wow its a good deal. ı would not miss it. If you want to check the specifications see below. Specifications Screen Size: 42 (measured diagonally) Samsung 32″ LN32A330 LCD HDTV wtih Digital Tuner If you are looking for style and entertainment in the latest HDTV line, Samsung surely has it. With its Samsung 32″ LN32A330 LCD HDTV you can expect to get vivid color and detailed images while sitting back and enjoying movies or your[...] LG60PG60 Plasma TV Review | Plasma TV Reviews UK LG60PG60 60" widescreen Full HD Plasma TV features 1092 X 1080 pixels display resolution, 30000:1 contrast ratio and is HDReady. Best Plasma TV: Practical Tips for Choosing Even if you already have a brand in mind, you’ll probably find it difficult to choose a plasma TV without re-thinking your original choice.

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To take full advantage of the great number of HDTV stations you can get with your satellite system, you will want a television with a breathtaking picture and mind blowing sound. When shopping for a television today, you have many more options than just a few years ago. From several hundred dollars, to a price similar to that of a new Corvette, you can choose the television to fit your budget and lifestyle.

If you want to watch satellite programming you will need a tv that is at least HDTV ready. Your satellite service provider will supply you with an HDTV tuner. Even if you will not be watching much HDTV programming, there is still a huge benefit to watching a digital television. All HDTV and HDTV ready tv’s contain upconversion circuitry that cleans up the picture with even non HDTV signals.

If you watch a lot of movies or dvd’s, you might want to purchase a widescreen television. A widescreen tv has a 16:9 aspect ratio screen, as opposed to the traditional television screen with a 4:3 aspect ratio. You can enjoy watching movies on a screen shaped like a movie theater screen, and view non digital programming in a side cropped view, or stretch the picture to varying degrees to fill the screen. All HDTV programming uses the 16:9 aspect ratio.

The least expensive option is the good old fashioned CRT (cathode ray tube) television. It has been around since 1927, and it is the least expensive option. It is built around a single picture tube, and provides excellent contrast and overall picture quality. A higher end picture tube television will actually give a smoother appearance of motion than a flat-panel tv. The primary drawbacks of tube tv’s are their immense weight (compared to newer technology), and the considerable depth of the sets themselves, both severely limiting your installation choices. Also, the largest tube television available is 36", so if you need a larger picture, you might want to step up to flat-panel television.

LCD and Plasma screens are the two options available in flat-panel televisions. Both are incredibly thin and lightweight, and can be wall mounted if you choose to do so. An LCD (liquid crystal display) contains thousands of crystals sandwiched between two glass or plastic plates, which are acted upon by electrical current, creating images on the screen. A plasma screen consists of thousands of pixel cells filled with gases that excite phosphors, producing light, and thereby your picture.

The weight of an LCD and a plasma tv are comparable, with the LCD models being slightly lighter in the 40" range. As the screen size approaches 60", the weight of the LCD overtakes that of the plasma screen. The display panel tends to last longer with the LCD than with the plasma models. LCD televisions are not vulnerable to burn-in, also known as image shadowing or ghosting, like plasma screens. Burn-in is essentially burned, or worn out pixels in a plasma screen that have been damaged over a period of time and retain color information from static images like network logos, etc… Plasma tv’s tend to have more accurate color reproduction than LCD models, and are currently less expensive than a comparable LCD. While the largest LCD tv at this writing is 65", that is likely to change quickly as the technology evolves with the latest innovations in the computer monitor industry. The largest plasma screen television currently produced is the Panasonic TH-103PZ600U103", which boasts a massive 103" screen, and is expected to carry a whopping retail price of about $70,000 when is hits US markets in late 2006.

Remember the old, bulky rear-projection televisions that were almost a yard deep and weighed nearly as much as a VW Bug? Todays digital big screen tv’s take up much less space, and a 60" television can weigh under 100 lbs. Digital big screens are capable of brightness that is unmatched by the older CRT televisions, and do not suffer burn-in like the plasma tv’s. These digital big-screens also contains a consumer replaceable lamp that restores picture quality to its original brilliance. Prices for these sets are very reasonable, usually one half to two thirds the price of a similar sized plasma or LCD television. One disadvantage of the big screen tv’s is still size; even with technological advancements, these models take more room for installation than the flat screen televisions, and are not practical for wall mounting. The ideal viewing angle is only achieved straight on, and in a seated position.

For a true movie theater experience at home, a front projection tv may be a good choice. This is a two piece system consisting of a projector and a screen. They offer picture sizes up to 300", and do not include any type of tv tuner, instead displaying signals from a satellite receiver or cable box. The best viewing experience with a front projection setup requires a fairly dark environment, and is definitely not for everyone. However, for cinema lovers, there is no better way to bring your favorite film to life. Pricing for good projectors starts at just under $1000, and screen prices vary according to size, with most models falling somewhere between $300 and $1500.

Whether you watch mainly sporting events, movies, or dvd’s, a modern television can give new life to your favorite programming. As technology advances at an astonishing pace, prices for larger and more sophisticated television sets continue to come down. If you do some shopping online and find that you can’t quite afford the tv that you want, save money for five to six months; no matter how much or how little you are able to save, chances are you will be able to afford the set you want as prices come down. Just don’t blow the money you have saved – you might need to build a new room to house the larger set you will be buying in two years.

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