Today, there are more options than ever before when it comes to purchasing a flat panel HDTV. The newest, hottest technology in HDTV is the super thin and lightweight LED TV. But how is LED different from LCD? Should you expect to pay more for an LED TV? What are the benefits of LED vs LCD?
How are LED TVs different from LCD TVs?
Simply stated, an LED TV is an LCD TV that is lit with an LED (light emitting diode) light source instead of CCFLs (cold cathode fluorescent lamp). Manufacturers such as Samsung began the trend of marketing the LED-lit LCD TV as an “LED TV” likely in an attempt to easily differentiate the product from typical CCFL lit LCD products.
An LCD TV is comprised of several layers. The front layer is a piece of glass filled with liquid crystals that move and change to produce the images we see on the screen. But images can only be viewed when the screen is illuminated. This requires a light source. The light source is the difference between LED TV and conventional LCD TV.
Here’s a simple explanation of how it works: Conventional LCD TVs use fluorescent tubes (CCFL) to provide light to illuminate the LCD panel and make the images viewable.
In an LED TV, the LCD panel is lit with an LED backlight. LED lights can be more precisely controlled and can produce richer blacks and a better contrast ratio for a more vivid viewing experience.