In recent years, LEDs have been greatly developed in backlight applications, not only in the backlight applications of small-size LCD displays, but also in the mid-size LCD display backlight applications that require higher performance and longer working time. Such as GPS, P-DVD, digital photo frame (DPF), and netbooks. According to data analysis, LED-backlit displays will become the mainstream model in the global display market this year, which is one year behind the previous forecast of mainstreaming in 2009. In other areas, the share of LED-backlit notebooks currently stands at 60-70%, and the share of LED-backlit TVs will rise to 15-20% this year.
Before 2007, the main application field of LED was mobile phone backlight. In 2009, LED backlight was developed with LCD TV, display and NB. The company said that LED backlight panel is not only the future development trend, but also the upcoming The present style. In 2010, the large and medium-sized display backlights will promote the rapid growth of the LED industry. In 2010, LED backlights will be a hot spot not to be missed by the LED industry. So what are the application hotspots of LED backlights in 2010 that we are looking forward to? The first major application hotspots are smart phones and 3G mobile phones; the second largest application hotspot is portable personal consumer electronics represented by MID, smartbook, PMP and netbook; the third largest application hotspot is digital flat panel TV; the fourth largest application hotspot It is a large-size LED backlight; the fifth major application hotspot is medical imaging systems and home medical equipment.
LED backlight era is coming to replace CCFL mainstream status just around the corner
CCFL backlights have high voltage, short life of light source, power consumption, and environmentally unfriendly materials. This makes LED backlighting solutions with low voltage, long life and environmental protection advantages from mobile phones to medium and high-size LCD application systems. More than 50% of computers use LEDs as backlights, and so has the rapid development of netbooks since 2008. In LCD monitors and TVs, the penetration of LED backlights also accounts for 5%. LED backlights have been criticized for a long time. Cost and size constraints are rapidly improving, and overall penetration will continue to increase rapidly in the future. It is expected that the penetration of LED backlight technology will increase from 3% in 2009 to approximately 39% in 2013, and by 2015, LED backlight technology The penetration rate will reach 78%.
LED backlight has become the main development trend of large-size panels, and the growth of LED backlight panel shipments will be very fast; In 2010, for the LCD display that currently has the largest market share, LED backlight technology has become a new economic growth point for major display manufacturers due to its ambiguity and its ability to greatly enhance the color performance of its display. The downturned market has injected fresh vitality, and LEDs that will be used in backlight modules for display products will explode in the next few years. In 2012, it is estimated that LED backlights will be widely used in 1 inch to 70 inch liquid crystal display devices, while 34 billion LEDs will be used for backlighting of liquid crystal display products, which will grow more than 300% compared with 2008. Although LED backlights still exist some Technical problems and high cost issues, but backlights, panel manufacturers, machine manufacturers, etc. are working hard on LED backlight products. Through these efforts, we have seen a significant improvement in the cost structure of LED backlights, and the cost has also been reduced, accelerating the future development of LED backlight products. In the near future, LED backlights can gradually replace CCFL as the mainstream.
Small-size backlight market slows down, large size will become a new focus
LED has long been used in the small-size LCD panel backlight market dominated by mobile phones. The continuous growth of mobile phone production has driven the rapid development of the backlight market. In particular, the emergence of color-screen mobile phones in 2003 is driving the rapid development of the white LED market. However, with the steady growth of mobile phone production and the increase in technology, the number of LEDs used in mobile phone LCD backlights has decreased, which has led to a slowdown in LED usage in mobile phone backlights.
The slowdown in the volume growth rate and the continuous decline in the average price have led to a weak growth in the small-size backlight market. At the same time, the medium and large-size backlight market has become the new favorite of manufacturers.
According to statistics below 10 inches, the LED backlight penetration rate is close to 100%; in the NB market, the LEDNB penetration rate has increased from 14% in 2008 to 60% in 2009, and it is expected that the overall LEDNB shipment will replace CCFL in 2010. The rate is 95%.
RGBLED will become the mainstream of future LCD TVs
As far as LED-backlit LCD TVs are concerned, LEDs have become the key words of 2010 flat-panel TVs without any suspense. Of course, this is attributed to the fact that LED LCD TVs are gradually recognized by consumers in terms of appearance, function and environmental protection. The LED backlight module is divided into two types according to the incident position of the light source: direct type and side entry type. "The direct type and the side light type have their own advantages. The former can realize the regional dynamic backlight technology and the RGB three-color LED backlight technology, and thus have the advantages of high contrast, high color reproduction, low power consumption, etc.; the latter is easy to realize thin and light, At present, the white-light LED LCD TV based on the edge-light type has become the mainstream of LED LCD TVs due to its low-cost, ultra-thin and other technical advantages."
The RGB LED-backlit LCD TV has much better color performance than the white LED LCD TV. The former has a color gamut of more than 105% and the latter has a color gamut of about 70%. At present, white LED has become the mainstream of low-end LED LCD TVs, which is forming a rapid replacement for CCFL. However, we believe that as LEDs continue to increase in volume, their performance continues to increase and prices are gradually reduced. It is believed that the cost of RGB LED backlight modules will continue to approach CCFL, coupled with its high color reproduction, high dynamic contrast ratio, low power consumption and many other advantages. LCD TVs bring higher display quality, and it is believed that RGBLED will become the mainstream of LCD TVs in the future.
In short, with the concept of “low carbonâ€, the LED backlighting scheme has a huge advantage and potential. It is an inevitable trend that LED backlights replace traditional light sources. 2010 is only the beginning, after all, the cost price difference is still high, making the promotion of LED backlight is still not easy. However, with the continuous improvement and cost reduction of LED backlight technology, the price difference will not be a stumbling block to the mainstream era of LED backlight.
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