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Pros and Cons of LCD-Led TV Technology

Nov 22nd 2012 at 11:51 PM

For the longest time in history, the regular consumer market has thought of screens that are as flat as wall paintings were just the stuff of popular science fiction. As we entered the 21st century however, technology did eventually prove that "wall-painting" screens were possible, with the development of LCD technology.

Today, LCD technology is what defines the mainstream HDTV market today. It is in fact the modern screen technology that is in primary use, despite the presence of other types of digital display technologies. In this article, we shall discuss the basics of this technology, and briefly discuss every firsthand bit of knowledge that you may need to know about these kinds of HDTV's.

How LCD Technology Works

LCD stands for liquid crystal display. It is basically an electronic visual display technology that uses the light modulating properties of liquid crystals. Each pixel inside an LCD is subject to the differing electric signal fed by two transparent electrodes. When light passes through the modified liquid crystal screen, it displays a specific image according the electronic signal that was fed to it.

While it is able to produce images by altering the light that passes through or strikes on it, it is incapable of producing light itself, requiring a backlight for the images to be seen in proper detail. The https://vimeo.com/54120611 most commonly used backlighting are fluorescent lamps, although production of these types of LCD screens are limited due to the toxicity of mercury, a key ingredient of fluorescent lighting. The development of LCD backlighting today is currently heading towards the use of LED lighting, allowing the screens to be a lot thinner and more energy efficient while having no direct hazard to the environment.

Several developments have been made to LCD screens over the years. The most prominent would perhaps be the introduction of the IPS (in-plane switching) panel technology by Hitachi, which addressed the problems of low-quality color reproduction and very short viewing angles. Another example is the TFT (thin-film-transistor) technology, which solves the issue of color and contrast problems of early color LCD screens.

Advantages of LCD HDTV's

Most of the advantages of LCD HDTV are centered on its overall efficiency, and not its peak display performance. What it offers in the entire package, whether it is economic or technical is what makes it an attractive buy for a few consumers, although specifically speaking these can be enumerated into several points:

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