Enhance the luminous efficiency driven LED application development

2008 global LED market at about $5 billion, to the capacity of the global LED market in 2013 will reach about $17 billion 900 million, a CAGR of 24%. From the application point of view, the annual growth rate of 40.3% in the field of lighting, the car is 6.9%, LCD backlight (large size) is 117.4%, showing that the product is 2.2%. It can be seen that the fastest growing in addition to large size backlight is the lighting products. In 2004 the proportion of landscape lighting and general lighting in the entire LED application was 5%, by the year of 2008, this proportion rose to 15%.

LED lighting applications in the field of expanding. 2002 years, LED white light-emitting efficiency of 25lm/W, is generally used in automotive dashboard. In 2004, the luminous efficiency of 40lm/W, the application has also been extended to the phone backlight and flashlight. By 2006, LED white light-emitting efficiency reached 60lm/W, this time the car interior (dome) lighting, outdoor landscape lighting applications appeared. By 2008, LED light efficiency reached 80lm/W, this time the car headlights, semiconductor lighting, large-size LCD backlight applications gradually rise. By 2010, LED luminous efficiency of 100lm/W, will gradually enter the era of semiconductor lighting, outdoor lighting, indoor lighting, environmental lighting, special lighting and a series of applications will gradually rise. The improvement of luminous efficiency led to the development of LED application.

As countries pay attention to environmental issues, LED lighting is also more and more attention. We look at the national environmental policy and green lighting project, China "semiconductor lighting project"; the "next generation lighting plan" in 2020 to improve the luminous efficiency of LED to 200lm/W; the green lighting program in Europe called "Rainbow plan"; South Korea's plan called "GaN semiconductor development plan". From the LED lighting technology development goals, there are two very important points in time, one in 2012, one in 2020. In 2012, LED light efficiency will reach 150lm/W, life will be increased from 20 thousand hours to 100 thousand hours, can replace fluorescent lamps. By 2020, the light effect will reach 200lm/W, can replace all the current lighting products.