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LCD vs. DLP TVs
Two new technologies in the world of television, DLP and LCD, are now in tight competition. Not so long ago everyone was talking about Plasma and LCD – which one would win? It became clear to most that Plasma, with its short lifespan of only 3-4 years, just wasn’t the best choice. In fact, LCD has several advantages over plasma. For example, LCD screens are much cooler than the average plasma TV and therefore require less power to operate. Plasma TVs get so hot, in fact, that they need a fan to cool them down – which can be noisy. Additionally, plasma screens tend to degrade over time, gradually becoming darker. LCD screens, on the other hand, perform relatively well and do not degrade over time. Some Plasma owners, who have been using their TVs for a few years now, have already witnessed their screens dimming. Also, LCD screens generally have better image quality and are typically 10-15% lighter than plasma screens.
Now, the choice is mainly between LCD and DLP – two distinct technologies that offer slight differences in display, price and performance. If you’re looking to buy a new flat screen TV this year, you’re probably wondering which one is right for you.
What are DLP and LCD TV screens?
DLP stands for Digital Light Processing, while LCD stands for Liquid Crystal Display. DLP technology, developed by Texas Instruments, uses a DMD, or Digital Micromirror Device, made up of 1.3 million microscopic mirrors. Each of these mirrors is essentially a single pixel. When a digital signal enters the DLP system, each mirror is turned on or off, resulting in a tapestry of mirrors tilting either towards the DLP light source or away from it. This process produces different levels of light and dark reflected from each individual mirror. Colors are produced when DLP light sources pass through a red, green and blue color filter on a moving wheel. Depending on the brightness/darkness of each mirror, the colors come in an enormous amount of shades, producing vividly colored images.
LCD screens are made up of several polarized glass panels, between which there are liquid crystal molecules. An electric current passes through the crystal molecules, changing their position relative to the glass. As light passes through molecules, these angle changes result in different light/dark patterns which produce images on the screen. There are usually three polarized glass panels, one with red pixels, one blue and one green. This system also produced very sharp and vivid images, but the angle is important. You may notice that an LCD screen’s best colors are visible directly.
Are DLP LCD TV screens better than others?
In other words, it is a difficult question to answer. Unlike plasma television screens, DLP and LCD screens last much longer and are both considered to have superior picture quality. LCD screens tend to have slightly better contrast, with a greater range of black and white color shades. DLP, however, still has faster refresh rates than LCD (although LCD has improved dramatically in this area over the past couple of years). This can have implications if you’re really into high-action motion (sports, action movies), as motion can sometimes look a little blurry with the LCD. Also, keep in mind that to get the best colors from your LCD screen, you need to sit right in front of it. LCD TVs also have a slightly shorter lifespan than DLPs, with only 45,000 to 60,000 hours compared to 75,000 hours or more. When it comes to price, LCD and DLP are still more expensive than Plasma, but like all things over time, their price has come down. And right now, DLP is slightly more expensive than LCD, but not by much. DLP, in our eyes, is the best investment, at least for the next few years.
here for popular DLP TVs and prices.
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