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LCD, LED, Plasma

What's the Best Value?

Final Outcome:

Disadvantages:

Advantages:

PDP - Plasma Display Panel

  • Relatively expensive for 60-inch and larger panels.
  • Black level quality generally not as good as plasma due to backlighting.
  • Narrower viewing angle than plasmas.
  • The priciest among all HDTV's.
  • Limited screen sizes from 40-inch and above.
  • Relatively narrower viewing angle.
  • Plasma-like blacks along with most of LCD's advantages.
  • High energy efficiency.
  • Ultraslim design.
  • Best - LCD
  • Better - LED
  • Good - Plasma

While all three types of HDTV's have their own unique advantages and disadvantages, LCD has made strides to match the advantages of Plasma while maintaining the lowest price. LED's may have the most advantages, but their steep price is too much for the average consumer to afford.

How it works:

Future outlook:

Charateristics common to all three:

Flat-panel LCD will continue to be the most popular HDTV technology due to falling prices and strong manufacturer support.

Many tiny cells between two panels of glass hold a mixture of noble gases. The gas in the cells is electrically turned into plasma which emits ultraviolet light which then excites phosphors to create visable light.

More 50-inch and larger models will be released. However, plasma televisions will remain less popular than LCD's.

  • Slim profiles.
  • Can be wall mounted.
  • Lighter and less bulky than rear-projection televisions.
  • Can produce images up to 1080p resolution.

Disadvantages:

How it works:

Future outlook:

Advantages:

How it works:

Advantages:

LCD - Liquid Crystal Display

LED - Light Emitting Diode

A semiconductor diode is switched to cause electrons to combine with holes within the device which then releases energy in the form of photons. This effect is called electroluminescence and the color of light is determined by the energy gap of the semiconductor.

Many pixels filled with liquid crystals are positioned in front of a backlight to produce color images.

LED TV's will gradually replace LCD's over time. However, LED televisions will cost a premium in the upcoming years.

  • Susceptible to screen burn-in and image retention.
  • Loses luminosity over time resulting in a gradual decline of image brightness.
  • Susceptible to reflection glare in bright rooms.
  • Usually not sold in smaller than 32 inch models.
  • Higher resolution than comparable-sized plasma televisions.
  • No danger of screen burn-in.
  • Available in a wide range of sizes.
  • Achieves better and more accurate color reproduction than LCD's.
  • Produces deep, true blacks to allow for the greatest contrast ratios.
  • Far wider viewing angles than LCD's.
  • Virtually nonexistent motion blur due to very high refresh rates and faster response time.
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