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Posted on 13th Oct 2009 @ 10:59 PM

As prices of TV Back Lighting panels that use LED backlights fall in the coming years, their use in televisions is set to explode, iSuppli predicts. Indeed, global shipments of LCD-TV panels with LED backlighting will rise to 90 million units in 2013, up from 438,000 LED TV panels in 2008.

It is claimed that penetration of LED-backlight technology in LCD-TV panels will increase to 39% in 2013, up from 3% in 2009.

"The price gap between LEDs and the Cold Cathode Fluorescent Lamps (CCFLs) traditionally used for LCD backlighting has narrowed due to the higher yield rate of LEDs, as well as the oversupply that resulted in a drastic price reduction for LEDs in the second half of 2008," said Sweta Dash, Senior Director of LCD research at iSuppli. "And with the advent of green technology, power savings and thinner form factors, more branded manufacturers are looking at LED-backlit LCD-TVs in 2009. These factors are spurring brand-name television manufacturers to adopt LED backlighting."

iSuppli states that branded television manufacturers have offered LED-based LCD-TVs for some years without much success. Mostly, this was due to a higher price and larger cost differential between LED and CCFL products. But there is a renewed interest for LED backlight-based LCD TVs with the use of white LEDs. Instead of focusing only on colour gamut, picture quality and high-end RGB solutions, manufacturers are concentrating more on thinner form factors and lower power consumption with the use of side-mounted white LED backlight solutions.

The lower price differential between CCFL and white LED solutions, combined with the lure of thin TV, has led to an increasing adoption rate of LED-based TVs. Manufacturers such as Samsung are also focusing on shifting a significant portion of their LCD-TV offerings to LED backlights.

For LCD-TVs, panel suppliers are offering products with 120Hz frame rates with edge-lit LED backlights to achieve thinner form factors, lower power consumption and mercury-free ‘green’ attributes. In some cases, power savings with the use of LED backlights can be as high as 30% - 50%. Thickness and weight savings can also be as high as 30% - 50%.

Owing much to the green initiative from many countries, lower power requirements for TVs are expected in the next few years, and the current power-consumption level of many TVs may end up being below these requirements. This will lead to a faster shift to lower-power-consumption products.

In a recent consumer survey presented in iSuppli's April edition of its US TV Consumer Preference Analysis, more than 50% of US consumers take into account the so-called ‘green initiative’ factor when purchasing TVs.

However, because LEDs are used for general lighting purposes, there has recently been some concern about LED chip supply. Furthermore, the LED backlight supply chain is still evolving with varieties of solutions and many different suppliers that need to be involved. Panel suppliers are either entering joint-venture partnerships or developing their own in-house LED solutions to streamline the value-chain process, reduce costs, and gain better control over the supply.

New innovations and higher performance will help LEDs gain faster adoption in TVs in the coming years. The price difference for LED vs. CCFL TV systems may range from $300 to $700, depending on the size and type of LED used. However, the gap is expected to narrow in the future, and many TV manufacturers are planning new LED-based TV models with aggressive prices in the second half of 2009.

Given the current high price gap between CCFL and LED-based LCD-TV sets and panels, panel suppliers are hoping to reduce the price difference-to less than $100 between the 40/42in CCFL and LED-based panels, and to below $150 for 46in panels. This compares to a difference of more than $150 for 40/42in sizes at present.

With increasing importance being placed on lower power consumption and green initiatives, televisions are expected to have more stringent requirements in the future. LED backlights will enable next-generation televisions to fulfil those requirements.