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On January 23, iSuppli recently released a report that the LED market will be the only bright spot compared to the sluggish market for other electronic components. In 2009, LED market revenue is expected to increase by 2.9%. According to a recent report, it increased by 10.8% in 2008. "For LEDs, this year is still a year of growth, which is a great thing, because we predict that all other components will shrink," said Dale Ford, senior vice president of market intelligence services at iSuppli.
The overall semiconductor market will decline by 9.4% in 2009, and iSuppli has reached this conclusion after analyzing 12 semiconductor market segments. 9 of them will experience serious declines, including: memory chips, logic ICs, and power transistors. “Although 2.9% is a modest increase, it is great to achieve such a result in a special economic situation,†Ford said.
LED use in LCD backlights will gradually become popular
In 2009, LCD TVs will consume $163 million in LEDs, an increase of 221%. In 2008, the market for this sector was only $51 million. iSuppli pointed out that LCD backlight LEDs will grow to $1.4 billion in 2012, almost nine times that of 2009.
With the decline in LED prices, the advantages of LEDs are obvious in the contest with CCFL. Riddhi Patel, principal analyst for TV in iSuppli, said that after using LED backlights on 40- to 42-inch LCD TVs, the difference is only $200 to $500 compared to CCFL. At CES in January this year, some high-end LCD TVs from Sony and Samsung used LED backlights. These products will be officially launched in June this year.
LED backlight technology features
The advantages of LED backlights for low power consumption and thinness are obvious, but the extent to which LED backlights can improve image quality is still debated.
Most LED LCD TVs use an edge-mounted design to place the diode on the edge of the screen, which is a thin design that consumers appreciate, but has no effect on improving contrast. Sweta Dash, director of market research at iSuppli This is indicated. One alternative is to change the LEDs in the LCD TV to an array, which improves the contrast, Dash said. iSuppli predicts that in the next few years, the market will have a new approach that combines ultra-thin edge design with high image quality full array design.
White LED market is better than RGB LED
Another factor affecting quality is the type of LEDs in LCD TVs. Most LED-backlit TVs currently use white light instead of the more expensive red, green and blue LEDs. "RGB LEDs are simple and the best source for LCD TV backlights, but they are very expensive and will not be used in large quantities until 2010," Patel said.
The use of RGB LEDs results in a higher color gamut, which means more realistic colors, especially in red and green. Some companies currently use white LEDs with red and green phosphors to improve color gamut.
Compilation: Zeng Cong
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