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What Is LCD TV?

Tuesday, 26 Oct 2010 04:22 PM

Liquid crystal display (LCD) televisions are televisions that use liquid crystals to produce images. The display devices of these television sets are very thin and flat, unlike the bulky cathode ray tube television sets. These LCD TVs are also lighter in weight. They can be conveniently hung on walls which saves on space.
What exactly is LCD TV? Well, an LCD TV basically consists of liquid crystals sandwiched in between transparent glass electrodes. The electrodes are oppositely polarized. The crystals control the light passing through them according to the current flowing through them. Each pixel or individual picture element is divided into three subpixels: red, blue, and green. Upon suitable illumination, these subpixels can produce a vast array of colors. Thus, the liquid crystals change color according to the voltage applied. The screen is illuminated by a back light. 
These LCD TVs can be easily moved around, because of their light weight, and can be placed anywhere. The cabinet depth is only about two or three inches; so the television sets have a slim, sleek profile. The life span of LCD TVs is quite good. It is understood to be about 60,000 hours, which is about 20 years if used for 8 hours a day. Some LCD TV models are 3D capable; they can convert 2D images to 3D with the touch of a button.
HD LCD TV sets afford a wide range of uses. They can be used as computer monitors, gaming consoles, and of course as LCD HDTV sets. HDTV basically uses a digital display with a screen resolution of at least 1280 X 720 pixels. Since the screen resolution of the HD LCD TV is high, the pictures produced are sharp and clear.
The major manufacturers of LCD TVs are Sony, Samsung, Panasonic, LG, Philips, Onida, and Toshiba.
Samsung LCD TVs offer speed and brilliance. The company guarantees that their LCD TVs are lightweight, stylish and slim, produce sharp and detailed images, offer smooth motion quality, and have Samsung’s exclusive Touch of Color design. The Samsung UN55B8500 is rated by a consumer research website as the best 55-inch LCD television on the market.
LCD TVs are available in a wide range of screen sizes, from very small screens (about 5 inches in size) to magnificently large ones (65 inches). And when it comes to making a decision about the appropriate size, one must consider that the larger the screen is, the farther one must sit to watch the TV. Considering the space constraints, 32-inch LCD TVs seem optimum in size. This fact, coupled with the reasonable price of 32” LCD TVs, is the reason for the 32 LCD TV being many buyers’ first preference. There are high-definition (HD) 32 LCD TVs available from many brands. They offer excellent picture clarity and innumerable settings and are manufactured using environmentally friendly technology. Of course, they are lightweight and help you save on electricity consumption.
The above discussion will help you understand what an LCD TV is. Make a wise choice when selecting your own 32 LCD TV or when advising others on what to buy.

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