The advantages of LED energy saving and high efficiency make it an alternative source of incandescent and fluorescent lamps. Along with the development of LED brightness and related heat dissipation and assembly technology, "the demand for LEDs will not see any dark clouds in the next decade."
According to relevant media reports, from infrared remote control to mobile phone display, from traffic lights to home appliances displays, semiconductor light-emitting diodes (LEDs) are everywhere in our lives, the Industrial Economics and Trends Research Center (IEK) data display In 2006, the global LED market scale exceeded US$6 billion. In 2007 and 2008, it will maintain a growth rate of more than 10%, reaching US$6.85 billion and US$7.67 billion, respectively. Moreover, high-brightness LEDs, represented by automobile headlights, notebook monitors and lighting, will replace low-brightness LEDs such as mobile phone displays and home appliances, and become the locomotives that will drive market growth. It is estimated that high-brightness LEDs will increase by 16% in 2007, while the growth of general-brightness LEDs and infrared-light LEDs is only -5% and 1%, respectively. Experts even claim that with the development of LED brightness and related heat dissipation and assembly technology. "In the next decade, LED demand will not see any dark clouds."
Two breakthroughs ignited the high-brightness market
Due to limitations in luminous efficiency, LED commercial products are now mainly mobile phone backlights. In 2006, mobile phone backlights accounted for 33% of the global LED application market. IEK estimated that the market size in 2007 was only 1.76 billion US dollars, which was the same as in previous years. In this regard, OsramOpto product manager SteffenBlock said: "If it can be seen as the era of mobile and communication of LED lighting from 2003 to 2006, then after that, with the popularity of LED in car taillights, notebook computers, LED technology Will enter the power era, and the technology's greater future lies in the large-scale use of automotive headlights and lighting." Expert analysis, 2007, 2008 will be a turning point in the development of high-brightness LEDs, with technological breakthroughs and With the release of the two major bottlenecks of patent expiration, high-brightness LEDs will gradually enter a climax.
In terms of technology, LED white light illumination efficiency has been increased to the applicable range and mass production. In 2003, LumiledsLighting's RolandHaitz based on the development history of LEDs since commercialization in 1965, summed up an empirical technical law. LEDs can double the brightness after every 18 to 24 months, that is, in the next 10 years. During the year, the brightness is expected to increase by a factor of 20, and the cost will be reduced to the existing 1/10. This is called Haitz's law, also known as Moore's Law in the LED industry. According to this inference, a breakthrough LED with a brightness of 100 lm/W (100 lumens per watt) appeared around 2008-2010. The actual situation is more optimistic, including the LED industry leader in June 2006 - Nichia launched a 100lm/W white LED engineering sample; in June 2007, Cree announced a new standard for lighting-grade LED brightness and efficiency. The XLampLED (100 lm minimum luminous flux at 350 mA) enables mass production, which is ready for the widespread adoption of high-brightness LEDs.
In terms of patents, the LED patents mainly controlled by Japanese, European and American companies began in 2007 and 2008, and the 20-year patent term will gradually expire and will be lifted. In fact, due to the gradual approach of the patent term, in order to avoid disputes in patent technology, leading companies such as Nichia, Toyota Synthetic, Cree, Philips and Osram are mutually authorized to maintain monopoly on the one hand, and BRICs on the other hand. The manufacturer carries out an authorized OEM model of “authorized patents, transfer manufacturingâ€. And in the case of patent licensing, production opportunities flow to areas such as Taiwan and China where manufacturing costs are lower, and emerging LED manufacturers have also pulled into the technological distance from traditional LED manufacturers.
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