Tuesday 13 August 2013

The Big Fight: LCD vs LED Technology in TVs

WHAT IS LCD TELEVISION?
Liquid-crystal display televisions (LCD TV) are television sets that use LCD display technology to produce images. LCD televisions are thinner and lighter than cathode ray tube (CRTs) of similar display size, and are available in much larger sizes. When manufacturing costs fell, this combination of features made LCDs practical for television receivers.
WHAT IS LED TELEVISION?
It is similar to an LCD TV; however, it uses LED as the source of backlight. A light-emitting diode (LED) is a semiconductor light source.




BY WHO AND IN WHICH YEARS WERE THEY INVENTED?
LCD: - The exact date and inventor are not known. LCD TVs came to be after a series of various inventions based on research and development by various people and big electronics MNCs. Combined efforts of researchers, scientists, universities, electronic giants and industrialists led to the LCD TV. However, James Fergason is commonly and widely accepted as the inventor though he is not the sole individual involved in the process.
LED: - In the case of both commercial LED screens and domestic versions, several companies have adopted the technologies at similar times. It is safe to say that no one person or company "invented" the LED television although credit must be given to the engineering teams who first applied LED technology to television and video displays.
LED VS LCD:-
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. An LED TV offers more colors, especially ones that use RGB-LED backlighting. On average, LED TVs are priced higher than traditional LCD TVs that use CCFLs for backlighting. 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%.


WHICH IS MORE POPULAR?

As of now, the LCD technology is extremely popular as people have dumped the conventional bulky cathode tube TVs for the better option. Although huge numbers of people, especially in poorer nations like India still use the old box-type TVs they are slowly going out of usage as even big companies have stopped manufacturing them due to low demand. An important point to note however is that even LCD TV users are slowly but steadily switching to LED TVs due to various benefits they offer like better picture quality, thinner panel, substantial electricity consumption reduction etc. One of the reasons that deter the “aam aadmi” from opting for LED is due to its slightly higher costing.

FUTURE OF BOTH TECHNOLOGIES:-


Various studies and reports show for sure that the conventional cathode TVs are not going to be prevalent any longer than a decade. Populations the world over are shifting to modern technologies like the LCD and LED to stay with the times. As of now, the LCD market is stable but the LED demand is on the rise. Having said that, it is hard to forecast in the world of technology- because as we all know, every second of the day, there is a new discovery/invention/development taking place and it is surely going to be hard to keep up!

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