Most people are now so much into Digital TV that it’s very difficult for anyone who has tested Digital TV to do without it. What better way to relax with your loved ones than by choosing from hundreds of channels that are available with Digital TV. Lots of reasons have been given why most prefer Digital TV to Cable TV today.
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Your thin flat panel TV can grace your room by hanging on the wall like a piece of art, or it can sit on a trendy stand, catching everyone’s eye when they enter the room, or just rest sedately on a table. But the technologies that go into flat panel TVs, namely LCD and plasma have their own pros and cons, depending on the application. Flat panel LCD TVs and flat panel monitors for computers use the same technology liquid crystal display which produces sharp and bright images in most lighting types.
LCD technology Popular Choice
LCDs shine light through pixel cells that have a red, green and blue component, but they cannot turn off certain pixels. Hence, the ability of LCDs to produce a pure black is less, which in turn has an effect on contrast levels. If the LCD panel is more than 40 inches wide, they are obviously more expensive than flat panel plasma TVs and rear projection TVs. But they are affordable when you look for 15-21 inch-wide screens for smaller rooms. Major manufacturers who make these are Sharp, Philips, Dell, Samsung, Sony, etc.
The main advantages of liquid crystal display panels are that they are lightweight, thin and do not consume much power. CRT or conventional cathode ray tube monitors are being used lesser and lesser because of the obvious advantages of flat panel LCDs over them. LCD displays are mostly TFT panels or thin film transistor LCDs, an active matrix. They have the property of high quality displays and smaller size, which is what makes them popular for many uses.
Plasma Flat Panel TVs
The other flat panel option – Plasma TVs – look very elegant and streamlined. You can choose the best from Sony, Pioneer, Samsung, Philips, and Hitachi etc. whose wide screens can be anything from 36 inches to about 70 inches. These are renowned for their color accuracy and can be viewed from anywhere in the room. They pass an electric charge to cells filled with gas, which in turn respond with a burst of ultraviolet light to produce images; hence plasma TVs are said to be prone to the burn in phenomenon.
Flat Panel TV LCD Or Plasma Which Is Better?
Flat panel TVs have great advantages in terms of being thinner and lighter making them a better option in terms of flexibility in placement. The digital display quality is precisely controlled producing an amazing array of colors. They are immune to magnetic picture distortions, so you don’t have to worry about putting them close to speakers that are not shielded. Flat panel TVs give you good image focus making straight lines look straight. About the only downside is the fact that flat panel TVs are costlier than conventional TVs. So thin is definitely in with both LCD and Plasma TVs. Plasma TVs are invariably larger than LCDs and have a wider viewing angle. In terms of brightness, LCD panels are better when lights are bright. Plasma TVs produce blacker blacks.
This is the time prices are getting more and more affordable, since prices for LCD and Plasma TV are decreasing quite fast.
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3) Flat Plasma TV
One of the most desirable qualities of a flat plasma tv is the physical size in comparison to CRT television. I’m talking about flat referring to physical dimensions; not just about the flat screen. Because the plasma TV is flat, it looks stylish and hi-tech as well as saving space.
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Nowadays, there are many big brands making Big Screen TV’s which are very popular everywhere. Big Screen TV like high-quality 5.1-channel surround sound systems would definitely pull you into the movie action or TV show’s story line just the way big movie theater screens and sound systems do. But at the same time sometimes a too-large TV can really overpower a room. To get the right big-screen TV for your needs, you’ll need to consider screen size, the display technology, your budget, and also the viewing preferences. TV screens are being made much bigger, so that they are similar in shape to movie screens and the picture quality is being improved by technical tricks so that new projection sets will provide superior images even from standard broadcasts and videotapes.
While buying a big screen TV for your home it is important that you choose the screen size according to your room size. Your seating distance will determine your sense of picture clarity and detail as well as the quality of the viewing experience.
Big Screen TV’s are available in both Plasma and LCD. Plasma screens use a matrix of tiny gas plasma cells charged by precise electrical voltages to create a picture. LCD-Liquid Crystal Display screens are in layman’s terms sandwiches made up of liquid crystal pushed in the space between two glass plates. Images are created by varying the amount electrical charge applied to the crystals.
Each technology has its strengths and weaknesses. For home entertainment, plasma TV screens have a slight edge over LCD TV’s that’s because plasma TV screens can display blacks more ac-curately than LCD TV screens thus they give better contrast and detail in dark-colored television or movie scenes. In LCD technology a backlight shines through the LCD layer which makes it harder for it to achieve true blacks because there is always some light leakage from between pixels.
These cool plasma and LCD flat panels which are only a few inches thick are alluring, but budget, screen size, and your need for optimal HDTV clarity are big factors you must consider. You may have to pay as high as $8,000 USD in order to get full HDTV resolution on a plasma panel which would mean getting a 50-inch diagonal screen but if you are willing to compromise with the flat panel and accept a more conventional box you can get full HDTV resolution for a fraction of that amount. However if you still like the flat panel and can do with a good but not true HD picture quality, you can save a lot of money on a smaller LCD or plasma display.
So, folks set your budget, decide on what you want and get the perfect Big Screen TV for your home. Invite your friends and enjoy the next game with loud cheers and drinks!!!
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A flat LCD TV is an enormous acquisition because of the low profile and special efficiency, but not that alone. It is also a great because it offers the highest decree of any TVs, and also because it has squatted glares almost no glare at all. This is because the profile of flat lcd TV means that, unlike a normal curved TV screen, which draws light from any direction and propels it to flat you in the form of glare, it is only susceptible to light turbulence from an exacting bearing, kind of like a mirror, and unless there is a powerful light source there right in that specific spot, it will not replicate it back at you. The explanation for having a flat screen is because it does not have a cathode ray tube like a normal TV. Cathode ray tube or ctr is basically a gun that shoots out electrons at high speed at the surface of a normal TV. A pixel is given on the screen the electrons strike a surface that fluoresces. This means that a ctr must have an arched screen and enough depth to position an electron gun at the back to discharge the image out of the TV.A flat LCD TV does not have a ctr tube but, instead a light source with polarizing filters and a thin layer of liquid crystals between, it can be very thin and efficient. It also uses less power by far than a normal TV so although initially, it will cost more than a ctr TV. Ultimately it will actually save you money by cutting down on your electricity bill but the best thing about it, its clarity of the image. Its clearness is most evident when you look at DVD movies which are at a higher resolution than normal TV.
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A flat lcd tv is a great purchase because of the low profile and spacial efficiency, but not that alone. A flat lcd tv is also great because it offers the highest resolution of any tvs, and also because it has low glare, almost no glare at all. This is because the flat profile of a flat lcd tv means that, unlike a normal curved tv screen, which catches light from any direction and sends it to you in the form of glare, a flat lcd tv is only vulnerable to light ddisturbances from a particular direction, kind of like a mirror, and unless there is a powerful light source there right in that specific spot, the flat lcd tv will not reflect it back at you.
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At the time when flat screen televisions were initially introduced the technology that they were primarily based on were LCD and were made available in sizes that were smaller which were to be used in some television sets as well as in monitors for computers. These types of liquid crystal displays were ideal for laptop computers and the smaller sizes were ideal for other types of devices such handheld devices. Along with the launching of the flat screen plasma TV screen back in 1999, the television captivated world was sent into a mesmerizing shock.Before the debut of the flat screen plasma TV the bigger sized screens were dominated by rear projection which also unfortunately had a limited viewing angle to them. The only way that a viewer could get a clear, sharp image he/she had to sit right directly in front of the unit. The majority of them were very big and bulky, some of them as many as four feet deep. Because of the limited viewing angle, they weren’t valued by the majority of people due to the fact that they could not see the picture clearly.With the arrival of the flat screen plasma TV and viewing angles in the range of 170 degrees, these bigger screens can be viewed by a much bigger audience while still being able to see a full clear picture. With the vast majority of the predated tapered versions of television screens, the picture frequently lost a good portion of it’s detail close to the edges. With the newer flat screen plasma TV monitors, there isn’t any loss of detail on the sides or towards the top and the bottom so the viewers can experience the full affect of the image being shown.Size Matters In Terms of Diagonal MeasurementsBack in the 1950’s when televisions first made their introduction, the measurement back then of the screen frequently escaped most peoples logic. What the industry did was set the standard practice of taking the measurements on a diagonal manner. A 22-inch television was figured by taking a measurement from one edge of the screen to the other edge of the screen to arrive at the 22-inch mark. When the measurement is taken at either a vertical or horizontal, the size was substantially less. Similar methods are utilized on today’s flat screen plasma TV, however the majority of individuals have more interest in what is known as the aspect ratio of the image as well as the resolution that is presented.The greatest difference in flat screen plasma TV’s nowadays is the total size of the television. In terms of the older models, what is known as the cathode ray tube frequently was encapsulated within the case with as high as two inches on the sides. Even in a case like a 21 inch screen having measurements of roughly 16 inches wide, the case might still need as high as 22 inches or even more. A flat screen plasma TV monitor will typically be just an inch or so bigger than the total width of the screen and a lot more space is conserved because of the thickness of roughly four inches.
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Every day, more and more bad news hits the media about global warming, climate change and pollution. Every day new products are developed and every day more chemicals are added to the list of pollutants to our atmosphere and water.
One of the latest chemicals to draw the attention of the scientists is nitrogen trifluoride (NF3), a chemical is used in the production liquid crystal displays (LCD), also called flat-panel displays, along with thin-film solar cells and microcircuits. The most popular use of LCD displays is for televisions and computer monitors.
NASA is reporting that the level of this gas in our atmosphere is much greater than previously thought. As the manufacture and disposal of these LCD screens increase, so will the emissions of nitrogen trifluoride into our atmosphere.
According to reports, nitrogen trifluoride (NF3), remains in the atmosphere for up to 740 years and is only second to Sulfur Hexafluoride (SF6) in its global warming potential. This chemical has a greater greenhouse impact than even that of the world’s largest coal-fired plants. Its “globe-warming effect reportedly could be 17,000 times more potent than a similar mass of carbon dioxide”. [NASA]
Nitrogen trifluoride is missing from the list of greenhouse gasses addressed in the Koyoto Protocol and little to nothing has been heard about this chemical. Why is this extremely toxic chemical called the “missing greenhouse gas” from the Koyoto Protocol and what is the Koyoto Protocol?
In 1992, a United Nations Conference on Climate Change formulated the Kyoto Protocol. This protocol set the standards for reduction of six greenhouse gasses (carbon dioxide, methane, nitrous oxide, sulfur hexafluoride (hydrofluorocarbons and perfluorocarbons)that are known to interfere with the climate system.
In 1992, few liquid crystal display LCD’s were being manufactured, so the gas was not considered a major problem at the time, but that is rapidly changing.
In 2008 alone, the production of this chemical would release the equivalent of the global-warming emissions from a country the size of Austria and production could double in 2009.
In February of 2009, the television industry in the United States is making a full transition to digital technology. With that will be an increase in the demand for LCD flat screen televisions.
Manufacturers are promoting LCD televisions as “eco-friendly” as a benefit to switching from analog television to digital television. In comparison, they do use less electricity than plasma TV’s, older rear projection, and analog TV”s.
What isn’t taken into consideration is that many Americans, keeping true to their “bigger is better” mentality, will purchase larger replacement televisions which will use even more electricity than their old televisions.
The discarding of millions of the old analog televisions will be another ecological nightmare. Televisions, along with all electronics, contain toxic chemicals. Improper recycling will only add to the ecological harm our garbage is causing to the planet.
To truly go green when you purchase a new television,
Don’t opt for the largest screen you can buy.
Recycle your old television through a reputable recycler.
Turn your television off when it is not being watched.
Spend less time in front of the television.
Spend more time outdoors where the air is probably cleaner.
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Finding a Cheap Flat Screen LCD TV isn’t as complex as one might first imagine it to be. It is possible to really locate a cheap flat screen LCD TV for purchase. By following the provided tips here, in no time you will quickly find a cheap LCD TV that best suits your needs. Tip 1: Wait a while after its initial launching to buy a cheap LCD TV. Usually when a LCD TV is first released it is often rather expensive. By waiting a while, you will find that prices typically drop within six months to a year after the product’s initial launching. If looking to buy a cheap flat screen LCD TV, you will get far lower prices if you are willing to wait a bit before buying the product. In addition, you can research fellow consumers ratings and reviews about that specific LCD TV model, if it has been on the market for a while already. Thus, when searching for a cheap flat screen LCD TV, look for models that have already been around for a while which has earned consistent positive reviews from consumers and critics. Tip 2: Check out online auctions for a cheap flat screen LCD TV. Internet is constantly offering consumers the chance to get a cheap flat screen LCD TV. Online auction store has become a flourishing and very active market, and here is the place where you can really get the best values buying LCD TVs. If ordering from an online auction store, you can get prices which are far less expensive when compared to the prices of LCD TVs in local retail stores. For instance, a consumer may already have an older model LCD TV which has been replaced with a newer model. That being the case the consumer might replace and sell the older set, still in quality condition, for a super low price. You will also find brand new or refurbished cheap LCD TV with Buy-It-Now price well below the MSRP.
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With the price of LCD, Plasma, and other Flat Screen televisions falling over the past year, just about everyone is looking to upgrade their old and antiquated Cathode Ray Tube (CRT) and Digital Light Processing (DLP) based TV. The migration to High Definition Television (HDTV) has also motivated customers into making the plunge into the world of LCD and Plasma TVs – as these televisions display a picture that does not suffer from the typical “snow” and “ghosting” effects that were commonplace with older, analog TVs.
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