Which technique is better?

They both have their pros and cons. LCD TVs using edge-lit LCDs can be ultra-thin, because the LED sources are on the side. Edge-lit LED-lit LCDs are also less expensive than LCD TVs using LED backlit technology. On the other hand, LCD TVs that use LEDs across the rear of the display can create sharply deeper blacks, through a technique called “local dimming.” When a scene calls for a dark image, the LEDs in that area can be shut off completely, so no light leaks through what should look black.

Do LED-lit LCD TVs produce better pictures than plasma TVs?

No, they say that with LED-lit LCD TVs, plasma no longer has an edge when it comes to creating deep blacks and saturated colors. But plasma still has a big edge when it comes to price.

What is a LED Television?

Say you’re shopping for a new flat screen television. You’ve probably heard of Plasma and LCD televisions, but now you’ve run across something else: LED. What is this, and what’s the difference with the current flat screens, LCD and Plasma?

LED

You’ve probably heard the term LED before – it stands for Light Emitting Diode. With the climate change becoming important as it is right now, LED is often used as an energy-efficient solution to the more energy inefficient lighting that is currently being used. However, the LED has found its way to your tube too.

LED TV Systems

Currently, there are two different systems for LED backlight available. The first system uses hundreds of LED lights (white or colored) behind the whole LCD screen. This system is called Array LED backlight. It offers the most opportunities and the best quality, as the LEDs are arranged in groups regarding intensity. This is called local dimming, although there are just a few true local dimming screens available yet at this moment. The second system has LED lights on the edges of the LCD screen. This system is more common and is indicated by ‘Edge Lit’. Local dimming is not possible with this system.