NPD Display Search said LED backlight demand is reduced, but the lighting needs rise sharply , it is estimated overall demand from the LED chip 17 billion in 2012 to grow to 61 billion in 2014 . According to the latest LED lighting and display NPD DisplayS earch quarterly supply and demand report, in 2013 the global LED lighting chip sales reached $ 1.1 billion , to 2017 is expected to reach $ 3.4 billion . With 500 × 500 micron standard size estimate , LED chip demand is expected to grow from the overall 17 billion in 2012 to $ 61 billion in 2014 . However, while the demand for LED lighting will increase in the next few years, but LED -backlit TV panel demand for chips and other display devices are expected to be used from 2014 began to decline. Backlight chips fall was mainly due to demand for LED -backlit LCD TV sales growth is slow, resulting in improved efficiency while reducing the number of LED chips used per backlight module .In 2013 sales of LED backlighting chips for $ 2 billion , but in 2017 is expected to decline to $ 1.4 billion . In contrast , LED lighting chip demand growth starting in 2012 , is expected to continue to grow until 2017 . NPD Display Search's LED backlight and lighting analysts She Qingwei (Steven Sher) said , LED market researcher awaited market growth wave has finally arrived . In the LED backlight demand decline significantly contribute to the growth of the LED lighting market to keep growing LED .NPD Display Search analysis, with the decline in the cost of LED fluorescent tubes , will continue to replace traditional fluorescent lighting , lighting for 24 hours , especially in places such office and workshop . LED lamps are the most popular LED lighting products , as compared with traditional lamps, LED lamps contain no mercury , 50% more energy-efficient , longer life .