LED TVs Compared to LCD TVs

LED TVs are LCD TVs with a different type of lighting. Instead of using cold cathode fluorescent lamps (CCFLs) for lighting the LCD displays they use LEDs. They are similar in construction but they do have different characteristics that the consumer should be aware of.

The first fact to know is that the fluorescent lamps used in CCLF LCDs are always on or always lit. One of the most important differences to note about the difference of LCDs is that in order to display black areas on screen, the light has to be deflected from the LCD panel so that it will not be visible. The methods to achieve this effect are far from perfect so producing something that is very black is compromised and poor contrast levels are achieved. (Contrast levels mean the comparison of levels of blacks and whites that are possible.)

Rear-lit LED TVs utilize a matrix of LEDs situated behind the LCD panel. They can be individually controlled and switched on and off. When they are turned off they produce areas of dark and when they are turned on it produces areas of white. Both areas of light and darkness can be simultaneously produced on screen at the same time. Comparing the LEDs to LCDs the reproduction of black is improved with the rear-lit system in the TVs.

Another item to consider when comparing the two types of televisions is the range of color that is possible and the LED comes out on top. The reason that it is superior to the LCD in color is because the RGB LEDs used are able to produce whiter light than CCFLs or the white LEDs used in edge-lit LED TVs. The fuller spectrum range enhances the colors displayed and improves the viewing experience.

It is important to compare TVs before buying a new TV. A good way to see the two different TVs in action is to go to your local television showroom and view the different contrast levels and color reproduction comparing the conventional CCFL LCD model to the rear-lit LED TV and see for yourself if the later comes out on top.