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Infusion of Plasma- Screening the Televisions, HDTV Style
from: George PhillipsAs HDTV style becomes more and more prevalent so does the emergence of flat-panel (or flat screen) televisions. The biggest development in the technology of television since the inception of color TV is considered to be these convenient, lightweight televisions that display sharp, clear images. Plasma televisions are one of the newest and most creative innovations in home entertainment today. In fact many people when talking about plasma screens say that the quality of the images is both richer and more “cinematic” than other types of televisions.
But what technology is used to construct this newest rage in the electronics industry? Let’s take a closer look at how a plasma television is made.
The technology utilized in its construction is really very elementary on one level. A plasma television makes use of a fluorescent bulb as its primary power source. Cells make up the display of the plasma television and within each cell there are two panels made of glass, which are in turn each separated by a narrow gap of space. It is by way of this narrow gap that a gas known as neon-xenon is injected and then afterwards sealed in plasma form. During the process of its being manufactured, when the plasma is being used the gas is then electrically charged at specifically timed intervals. Precision and timing are the name of the game for the process to be done at top-notch form. The charged gas in the television comes into contact with three different colored phosphors (those being red, blue and green) and it is this action that produces the television image we see when we look at the screen. Every individual group of red, blue and green phosphors form a pixel or a picture element. A pixel is basically small dots that generate light and come together to form a video picture.
Plasma televisions have measurements ranging anywhere from 32 to 70 inches in a diagonal direction and only 3 to 4 inches in regards to depth. The HDTV viewing on a plasma screen is considered to be of superior quality and because of the wide viewing angle; the plasma set is believed to be an excellent choice for a true home theater experience. The clear, smooth images you see on a HDTV plasma screen are due to the almost 3,000,000 pixels that are illuminated in a special order for this purpose. The cells in plasma televisions are bonded together in such a way that they are able to boast color combinations in the range of 16 million (and in some cases, even more). If you couple this with the fact that the plasma television has no beam like a traditional CRT television does then you will understand why the plasma HDTV screen has exceptional image clarity, light output that is uniform and an almost perfect focus of pictures.
It was near the end of the year 1999 that plasma screens appeared on the United States electronics market but the idea behind then was created much further back then that. The plasma concept first began to take root at the University of Illinois in July 1964. Experiments performed in laboratories created points of light that were the precursor to plasma technology that was to come. The technology continued to be a hot topic for researchers and scientists as they tirelessly worked on developing and improving their ideas for plasma screen construction. It was by the late 1960’s that enough advancement had taken place to allow scientists to develop geometric shapes from plasma.
We’ve come a long way since that time. In today’s ever evolving electronics world, plasma displays that make full use of color and brightness are a reality thanks to advanced technology in the manufacturing field, improved materials and digital processing of a high-speed nature.
Digital television is considered the present trend and one that will be utilized more and more as we pave the way into the future of technology. Those who study these things closely say that due to the creation of HDTV, DVD-Video, digital broadcasts via satellite and computer video we are presently in a sort of digital video revolution. With the growing popularity of HDTV plasma screens this revolution does not appear to be losing any steam.
Important Notice Concerning DTV and HDTV: Although many TV systems have already complied with earlier rulings for changing all transmission to digital TV, there still is doubt as to when overall compliance will be reached. Earlier it was scheduled for late 2006, but it is doubtful if this happens.
George Phillips is the webmaster of Better Home Living Guide and the
Continuing Your Education Online website ... Anything related to better home living can be found in our directory of topics at www.cashbuilder.com
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