Buying a television should be fun and exciting, but for most, the process is anything but. The technology is advancing too fast for most of us to keep up, and the sheer amount of choice is overwhelming. Walk into a shop looking for a 32-inch LCD TV, you'll find at least a dozen models that all look alike, and you'll be beset by salespeople trying to sell extras, like a TV DVD combi and digital TV recorders. In order to help you keep focus and find that right television for sale, we've compiled these helpful points.
LED vs. LCD vs. Plasma
Outwardly, all three styles look very much alike. The differences are internal. Plasma technology employs electrically charged gas that strikes red, green, and blue phosphors to create the TV colours. LCD, on the other hand, uses individual liquid crystals that can block light or allow it to pass through. These crystals do not create their own light. A traditional LCD set uses a fluorescent bulb. An LED TV is an LCD that uses light-emitting diodes (LEDs) rather than a fluorescent bulb.
This is the TV's ability to display an image's full range. This is particularly important for making fine details visible in high contrast areas of the screen. One advantage plasma has over LCD is its ability to deactivate the light source, which produces better contrast. LED is an improvement over traditional LCD because it can as well.
As the viewer's eye angle to the TV set becomes greater than or less than 90 degrees, there is loss of contrast and colour. Plasma sets have wider viewing angles than LED, which are in turn better than LCD.
In theory, plasma produces brighter colours than LED, which produces brighter colours than LCD.