Monday, October 6, 2014

LED vs. LCD vs. Plasma HDTVs


Home cinema setup Sony LCD TV KDL-40W2000. Full HD, 1080p, integrated DVB-T and analogue tuners
Foto source: wiki

When it Comes to High Definition TVs – What You Nedd to Know

Do LCD, LED and plasma TVs offer high definition capabilities?

Yes. No matter which type of TV you choose LCD, LED or plasma there are high definition (HD) models available. However, the specific TV must specify that it is indeed an HDTV. Although most flat-screens manufactured today offer HD capabilities, some still do not, so be sure to verify that the TV is HD-ready before you purchase.
The HD options available today include 720p, 1080i and 1080p. HDTVs that are 1080p compatible are the highest quality, and these TVs will display full-HD content from sources such as a Blu-ray player or some satellite dish channels.
Most HD-content you watch via cable or a satellite dish is viewed in 720p or 1080i, which is a slightly lower picture quality but is still considered HD. To the naked eye, it is very difficult to distinguish the difference between 720p, 1080i and 1080p on an average sized HDTV, so do not dwell too much on these numbers.

 

Samsung PN64H5000 64-Inch 1080p 600Hz Plasma HDTV 

How does the pricing compare between LCD, LED and plasma TVs?

The pricing can vary greatly between these three TV technologies. When comparing a TV of similar size and features, plasmas are generally the least expensive followed by LCD and LED. The primary reason for the difference in pricing is that plasma HDTVs have been around longer than LCD and LED TVs. However, the difference in pricing is shrinking as LCD and LED technology begins to grow in popularity. This is especially true between LCD and plasma models.
For example, take the Samsung PN50B500 50 inch 1080p plasma HDTV that retails for about $800. Compare that to a smaller-sized LED screen from Samsung; the UN46C7000 is a 46 inch 1080p HDTV that retails for nearly $2,000 at major electronics retailers. The $1,200 difference in pricing is quite substantial, but it was only in the early 2000s that the gap was even bigger than this. As new and more cost-effective advances in LCD and LED technology continue to arise, the prices will continue to drop down to plasma pricing levels.


How Does Picture Quality Compare with LED, LCD and Plasma HDTVs?

When it comes to picture quality, plasma is still king. Plasma technology offers top-notch color clarity, the deepest blacks and highest refresh rate (measure in Hz). Plasma TVs also offer a wider viewing angle when compared to LCD and LED TVs, so the picture quality doesn't diminish as much when viewing the screen from an angle.
That said, some of the newest LCD and LED TVs on the market are addressing the poor viewing angle discussion by adjusting the size of each pixel on the screen and working on other advanced TV screen innovations to push toward obtaining a viewing angle on par with plasma screens. These advances in screen technology can be found in the newest LCD and LED HDTVs on the market.
LCD and LED screens offer superior picture quality in rooms that are brightly lit. So, LCD and LED HDTVs may be the best option for rooms with lots of natural sunlight or ambient lighting. LCD and LED screens tend to show less glare compared to plasma screens. The fastest LED and LCD screens in terms of refresh rate (Hz) feature 240 Hz processing, which is slower than the best plasmas featuring 600 Hz processing engines. Faster refresh rates are ideal for showing fast-moving content (i.e., action movies, sports and video games).



What Screen Sizes are Available for Each Type of HDTV LCD, LED and Plasma?

There are a wide range of sizes available for plasma, LCD and LED TVs. In general, plasma TVs are available in sizes ranging from 40 inches to over 100 inches. LCD and LED TVs offer the advantage of being available in smaller sizes down to about 10 inches, which is ideal for placing a screen in your kitchen or to use as a computer monitor. As of 2013, LCD and LED TVs are not yet available in sizes exceeding about 105 inches diagonally.
So, this begs the question -- which screen size is right for me? When determining the ideal screen size for the room you plan to use it in, consider the placement of the TV and the viewing distance. Do you plan to wall-mount the flat-screen or will you mount it on a stand on top of a TV cabinet? Next, determine an approximate average viewing distance from the chosen placement of the TV. Bigger screens require a greater viewing distance. For instance, a 42 inch screen is best viewed from 8 to 10 ft. away while a 65 inch plasma HDTV can be viewed from as far as 16 ft. away. An effective way to ensure you're getting the right screen size is to take your measurements to the store with you, and test them out on a TV you're interested in buying.



What are the biggest advantages/drawbacks for each type of HDTV?

Plasma screens offer great quality and clarity, but they use up far more energy than LCDs and LEDs  as much as 3 or 4 times more in some cases. This equates to an average cost of $100 or more to operate a 46 inch plasma TV over the course of 1 year, according to Cnet.com. Another potential drawback of plasma screens, which is fast becoming a thing of the past, is the issue of burn-in. When a plasma screen shows the same image for hours at a time, the image can become burned into the screen, which creates sort of a shadow of the image in the background, even when the TV is off. Most plasma TVs today; however, offer built-in screen burn protection, so this issue is far less common than when plasmas first become popular in the late 1990s.

LED TVs, which actually is a type of LCD screen, offer the advantage of being exceptionally thin and lightweight compared to plasmas. They are also much more energy efficient and perform better in brightly lit rooms. Likewise, LCD HDTVs are thin and energy efficient. Additionally, neither technology is prone to the potential screen burn-in problem of plasma screens. However, the drawbacks of LED and LCD TVs include their slightly higher price tag, narrower viewing angle and slightly lower quality picture when viewing fast-moving HD content. EZ Writer.

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