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Wednesday, January 15, 2014
LED vs LCD.
LCD TV vs LED TV
An LED TV uses less power, provides a brighter display with better contrast, a thinner panel, and lesser heat dissipation than a conventional LCD TV. This is because an LED TV uses light-emitting diodes for backlighting versus CCFLs used by conventional LCD TVs. The display of an LED TV is not an LED display, so a more technically correct name for it would be "LED-backlit LCD television".
There are 3 types of LED TVs based on their backlighting methods:
- Edge-LEDs (the most common) are positioned around the rim of the screen and use a special diffusion panel to spread the light evenly behind the screen.
- Dynamic RGB LEDs: This backlighting technique allows specific areas on the screen to be dimmed.
- Full-array LEDs where LEDs are arranged behind the screen but are incapable of dimming or brightening individually.
And here is a chart to make it easier.
Comparison chart
LCD TV | LED TV | |
|---|---|---|
| Thickness | Minimum 1 inch | LED edge backlit LCD TVs are thinner than CCFL LCD TVs. Often less than 1 inch. |
| Power consumption | Require less power to operate compared to plasma, but more than OLED TVs | LED-lit LCD TVs consume lesser power around 70% compared to Plasma TVs. |
| Burn-in | Not an issue | Burn-in is very rare |
| Screen size | 13 - 57 inches | All sizes |
| Life span | 50,000 - 100, 000 hours | Around 100,000 hours |
| Cost | Much cheaper | More expensive |
| Viewing angle | Up to 165°, Picture suffers from the side | The brightness and color on LCD TVs shift noticeably over the screen and depending on viewing angle |
Slim frame
Edge-LED backlighting technique allows an LCD TV to be extremely thin. LED televisions that are only 1 inch thick are also available.
Color
An LED TV offers more colors, especially ones that use RGB-LED backlighting.
Price
On average, LED TVs are priced higher than traditional LCD TVs that use CCFLs for backlighting.
Power Consumption
LED TVs use energy-efficient light emitting diodes (LED) for backlighting. These consume less power than cold cathode fluorescent lamps (CCFL) used in traditional LCD televisions. Power savings are typically 20-30%.
So next time You want to buy, you can make an informed decision.
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