LED High Definition Televisions

By Ricky Strauss

Watching television is a favourite pass time to people all over the globe. In fact, using the TV to play games and watch movies has become such an important part of the lives of society, that manufactures continue to search for ways to enhance the television experience. In most cases, this includes a clearer picture, a bigger screen, or better sound. All of these aspects are wrapped up into the latest TVs inventions known as the LED high definition television.

This drive toward giving viewers a more enjoyable TV watching experience has lead to the latest in trends, the LED television. In basic terms, a LED TV can exist as a LCD TV that uses Light Emitting Diode (LEDs) to clarify the picture screen display or as an LED TV which uses complete LEDs. LEDs more effectively direct light in one direction than fluorescent or incandescent bulbs. In a LCD TV, the LEDS are either placed along the back of the screen or around the edge of the screen. When the LEDs are used along the perimeter of the display screen, the term edge lit is labelled to the product.

The use of LED technology in the edge-lit or back-lit options work somewhat differently. Lining the edges of the screen with LEDs allows for a sleeker screen because no LEDs are used in the back. However with LEDs located across the back of the screen, darker blacks are formed because LEDs can shut off not allowing light to peek through resulting in a term called local dimming. In most cases, the back-lit LED television cost more than the edge-lit LED television. Both methods allow for great viewing color and picture perfection.

The cost of the clarity and color improvements with a LED HDTV comes with a cost. An upgrade to one of these televisions may cost the buyer up to $4000. Yet, with the upgrade the viewer gains much intensity in action films and gaming. LED TVs are more efficient at creating excellent pictures of fast motions. The LED HDTV manufacturers also claim that television cuts energy consumption by 40%.

Once the decision to upgrade has been made, there are several factors to consider before shopping for a new TV. A careful comparison should be made between LED TVs, LCD TVs, and Plasma TVs. The newest of the three, LED TVs, offer larger screen options. Their viewing angle is still short of the plasma but the reflective screen and burn out issue are not a problem.

LEDs group together to form small dots or pixels in a LED screen. While all LED screens offer high resolution, the amount of resolution depends greatly on the pixels. Red, blue, and green pixels work together to form other colors as well as white. The distance between the pixels on a LED screen is known as pixel pitch. The smaller the pixel pitch of the screen, the closer the pixels resulting in a higher resolution. High quality LED screens may contain over 9000 pixels per meter. These LED screens are limited to 40 inches or larger.

In addition to LEDs making their way into the world of television, they are now breaking ground with the LED monitor. The once popular flat screen LCD monitor has been outdone when it comes to color accuracy and precision. The LED monitors are created without metal that is found in other bulb type monitors. NEC is one of the first to put the LED monitor on the market with a cost reaching up to $6000 or more to purchase.

All reviews and indicators point to LED technology as being the electronic of the future. While high cost and screen size limitations are a factor in the LED world now, manufacturers show promise of working through these issues. In given time, LED electronics could possibly be a normal in the homes of all television watchers. - 29872

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