LCD TVs (Liquid Crystal Display)

Generally, LCD technology is relatively energy efficient, but this varies dramatically from one screen to another, dependent on a number of factors.

LCD sets are much lighter and slimmer than CRT sets and the flat screens offer viewing without image distortion. Unlike CRT and plasma sets LCD televisions do not use phosphors to create the screen image and therefore generate much less heat. LCD sets have a good lifespan but are comparatively expensive to manufacture - a cost handed on to the consumer. Prices, however, are falling.

Energy figures given are per square inch of screen area

How It Works

Liquid crystal, discovered in 1888, is matter that exists in a state between solid and fluid. This type of screen works with the liquid crystals arranged in front of lighting lamps - or a reflective surface - to create an image on screen. Each pixel is sub-divided into three (red, green and blue) and each sub-pixel can contain a range of over 356 shades.

For more information on ‘How LCD works’ visit the site below:
http://electronics.howstuffworks.com

Hint

There are LCD sets that use higher-spec optical components to reduce the amount of backlighting - and therefore the amount of electricity consumed. Auto-brightness features can also help increase energy efficiency. Ask your retailer for further details on the technology used in the television sets they offer!

For more information on choosing the optimum LCD, follow our easy steps…it’s STEP 3 next! To look at different TV Types go back to STEP 2.