LED TVs are really just LCD TVs with a LED back lighting system
Have you heard about the new type of television set being sold around the world, LED TVs? Before you get all excited and begin making plans to purchase a model, you might want to know a few things about LED TVs. To begin with, LED TV isn’t really accurate. State-of-the-art LED TVs can be found in modern sports venues around the world entertaining viewers. These LED TVs are in fact some of the largest televisions in the world. If you wanted a true LED television to mount on your wall, you would need to move into a modern sports stadium to make it feasible.
What does Samsung mean by the term LED TV? Some believe Samsung coined this term as a marketing strategy. In fact the term LED TV as Samsung defines it just means a LCD implementing an LED back lighting system, rather than a fluorescent illumination normally used in LCD TVs. A rather simple distinction that the average television buyer needs to be aware of, before deciding what type of television to purchase in the future.
An LCD television requires additional illumination in order to produce enough light to allow viewing of the screen. An image isn’t visible on the LCD screen unless additional illumination is added to light up the pixels on the screen. Normally, this illumination would be provided by fluorescent light, but in LED TVs this back light is provided by state-of-the-art LEDs.
This does mean that Samsung should probably call their new televisions LED-LCD TVs, or something similar. This distinction has also been noticed by some people who feel that maybe Samsung was trying to fool the buyer.
How are Modern LEDs Used to Back light LCD Screens?
There’s actually presently two ways television makers are using state-of-the-art LEDs to provide the necessary light to illuminate LED television screens. The first method is called edge-lite back lighting, and uses LEDs placed along the perimeter of the screen to provide the required illumination. This method has the main benefit of allowing the screen to be exceptionally thin, which allows for additional mounting options and other options. The main disadvantage of this method is the light provided often isn’t distributed evenly across the screen. This can cause the perimeter of the television screen to be brighter than the centre
The second method is called full array LED back lighting This method uses rows and columns of LEDs placed across the entire surface area of the viewing screen. This method allows for localized dimming of illumination in specific areas of the screen surface. This method also generally means the LED TV screen is going to be thicker.
Check out the different models of LED TVs being marketed around the world, before deciding which to purchase. You definitely want to make sure you find out which models use the edge-lite or full array LED back lighting system. You probably also want to know which models is the most environmentally-friendly.