Q. I want to buy an 40" - 46" HDTV (1080p) for my home to replace my 10 year old 40 " CRT TV. I've seen different types out there: Plasma, LED. LCD. What's the difference and which is considered best (quality-wise). Any references to links that explain the different types of TVs on the market now. I'm just now able to afford getting into 21st century technology and would like some help.
A. Confused about what type of TV to buy? LED LCD Plasma.. How to choose?
After all, there are so many acronyms and buzzwords to wrap your head around, such as 1080p, 120/240Hz, 24p, HDMI and LED backlighting. Huh?
Along with deciding how big a screen you want (which is usually tied to the size of your budget and the dimensions of your room), the next choice should be between LCD.LCD (LED Backlit) or Plasma � and all have their merits. Here, we'll describe each of these formats, and also point out their shortcomings.
LCD
What is it?
lcd tv 120mhzSimilar to your laptop computer's monitor, flat-panel LCD televisions use a liquid crystal display to produce a sharp and bright picture; these crystals are sandwiched between two panes of polarized glass, which are stimulated by an electric current and illuminated by fluorescent tubes housed behind the glass. Some newer LCD TVs, however, use LED-backlighting instead. LEDs, or light-emitting diodes, translate to a better-looking picture (see photo).
Pros
There are a number of advantages to buying a LCD televisions. For one, with more than three-quarters of all televisions embracing this technology, there is a lot of choice when it comes to manufacturers, models and sizes (13- to 103-inches, in fact). Competition, of course, breeds more aggressive pricing, too, which is good news for the consumer.
Flat-panel LCD televisions are also very thin, light and energy efficient, and are ideal for rooms with plenty of ambient light, which, for example, comes through large windows as they tend to absorb rather than reflect light (reflected light can obscure your view of the screen).
Cons
Until recently, LCD TVs didn't handle fast motion images as well as plasma TVs, resulting in a somewhat blurred image. Newer LCD TVs, though, have added technologies such as 120Hz frame doubling (or 240Hz frame quadrupling) to smooth out motion. It's still not as good as plasma, but much better than before. Also, LCD TVs used to have problems showing dark blacks (because a light was still on behind the pixel showing black, resulting in a more greyish hue). Many LCD televisions today use local-dimming with LED-backlighting (see next section) for improved contrast ratios (whiter whites and blacker blacks) - but, keep in mind, this is not an issue associated with plasma TVs.
http://www.price-rank.com/search/lcd%20tv
LCD (LED Backlit)
What is it? Not a Different Type of TV
led lcd tv backlighting backlitIt�s tempting to think LEDs belong in a completely separate category beside LCD and plasma TVs, but in reality, an LED television is just a type of LCD TV. The proper term would really be "LED-backlit LCD TV," but that always seems to get truncated to "LED TV" in everyday conversation, perpetuating the confusion.
To understand how LEDs function in an LCD TV, think of an actual liquid-crystal panel as the plastic pegs in a Lite Brite. They hold a translucent image, but without a powerful backlight to punch through and light it up like a signboard, you�re not going to see much. On your old Lite Bright, an inefficient incandescent light did the job, but pretty unevenly. On a typical LCD TV, fluorescent lights provide the backlighting through a special plastic sheet called a light guide that distributes light from a fluorescent tube evenly over the surface of the TV. On an LED-backlit TV, fluorescent tubes are replaced with light-emitting diodes � LEDs � the same technology that probably lights up your digital watch, the buttons on your monitor, and the indicators on your stereo. They can be either situated along the edges of the TV like a fluorescent tube, or arranged directly behind the screen in a grid. But what difference does it make, and why would anyone spend so much money on it?
The Benefit of LEDs
The most obvious reason LEDs have fallen into favor in LCD TVs: they�re simply more efficient. Although fluorescent lights do a decent job converting electricity to light in the big scale of things, LEDs perform even better. Typically, manufacturers claim an efficiency improvement of up to 30 percent over fluorescent-based sets, which can add up significantly over the lifetime of a TV, especially on larger screens that use more juice to begin with.
LEDs are also much smaller than tubes, even after accounting for the number of them needed to light an entire TV. That means LED-backlit televisions can be manufactured significantly thinner than their tube cousins. For instance, most of the ultra-thin televisions that measured under an inch thick at CES used LED backlights, because they add very little depth to the profile. Though commercial variants aren�t quite as dramatically thin as these prototypes, they�re significantly skinnier than their fluorescent-backlit counterparts, making them some of the most chic and living-room-friendly HDTVs out there.
For home theater enthusiasts, LEDs only matter for one reason: image quality. Because fluorescent tubes mu
What is the difference between LCD, LED, and Plasma screen televisions.?
Q. I'm planning on buying a new TV soon, but there are so many display options. I don't know too much about the difference in LCD, LED, and Plasma. I know that one of them has like a light shining off the back or the side of the TV and thats the one that I don't want. Can somebody help me with this information.
A. For many years, the CRT technology was the dominant technology in television sets. However, in the past few years, there has been a significant improvement in the technology, which has seen the introduction of LCD, plasma and LED televisions. Each of these new technologies has its strong points in the method that it displays images, among other features. The features for each type of these technologies are as below.
As with most electronics, it is recommended that you first do your research before choosing a HDTV. By doing research, you can ensure you choose a quality television that you will enjoy. There are many different sites that post reviews, and reviewing what other customers have said is really important. A good example of a page is one that displays Panasonic Viera TC-P54G25 reviews. Such sites not only provides expert reviews, but more importantly, also supply customer reviews.
When researching a television, it is also important to look at the differences in the technologies. The next few section outlines the three technologies that you will find in a HDTV.
What is an LCD TV?
The acronym LCD stands for Liquid Crystal Display. This technology was created to replace the CRT technology. A LCD TV is a significant improvement in the way pictures are displayed due to the mode of display involved.
LCD technology uses two major components to display, namely; Cold Cathode Florescent Lamps or CCFLs and molecules of liquid crystals. The CCFLs are used to illuminate the liquid molecules with white light, and as the light passes through, an image is created.
A LCD TV has the following advantages over a CRT TV; flat and much lighter, a higher resolution, wider viewing angle of up to 175 degrees, lower power consumption, resistant to �burn in� due to static images, and are ideal for naturally lit environments. However, there are some disadvantages to this technology such as a low contrast ratio and inability to achieve true black picture quality.
What is a Plasma TV
The shortcomings of LCD TV led to the development of Plasma Display Panel, otherwise known as a plasma TV. With this technology, images are created from gases containing neon and xenon atoms.
Plasma TV technology boasts of a rich variation of colors, due to an advanced color generation feature, that is able to generate true black picture quality.
The viewing distance and angles are also wider, ranging from 160 and up to 180 degrees, which is more than what can be achieved with a LCD TV. A plasma TV also has a higher lifespan than LCD TV. The downside of this technology is that the viewing capability, especially the brightness is greatly diminished in poor lighting conditions, lower resolution, and an irreparable back light.
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