In order to pursuing characteristics, such as better display effect and frivolous province electricity...etc., majority of LCD panel plant and LCD TV the whole machine manufacturer all and actively throw in LED to carry on the back optics product development.Compare with traditional CCFL back optics, LED carries on the back optics mold mass main develop the key lie in cost reduction velocity.
According to DisplaySearch’s newest option survey point out that it is estimated that 40 inch liquid crystal side will enter the type LED back light module the average cost by 2010 first quarter's 118 US dollars, will slide to the fourth quarter to 100 US dollars. But the LED back light cost reduction primary caused by the quantity of delivery which increases fast to cause the LED chip and the material declines correspondingly (led lamps), simultaneously the LED luminous efficiency promotion then reduces the LED chip use quantity.
Take 40 inch liquid crystal LED back light module as an example, the main capital constitution is the LED chip, light panel (LGP, light guide plate) as well as increases the bright membrane (DBEF, dual brightness enhancement film), but it has not used these three item of primary devices in the traditional tradition's CCFL back light liquid crystal . And (including the LED chip) has not accounted for the entire back light module 34% costs about the LED lamp source part (usb led lamp), estimated that leads the worn out fur woman with no pubic hair to account for 13%, to increase the bright membrane to occupy 15%, LED assembly to account for 6% .
From this we knew clearly the LED back light design, the output efficiency as well as the chip cost will be main direction to reduce the cost of LED back light.
DisplaySearch LED back light market and technical analyst Kevin Kwak indicated that in order to reduce the LED back light cost, the manufacturer must develop the new LED back light structure, uses the least LED chip, light panel optimization design, as well as effective optical thin-film structure. Kevin Kwak then expressed analysis the entire development supply chain, we had already established LED and the CCFL back light cost model. Based on this model, we may forecast 40” Full HD LED the Backlight cost will fall in Q4'10 to 100 US dollars, before the end of 2011, the LED price margin will reduce to 50 Yuan US dollars, at the beginning of 2009, 40” LED Backlight to CCFL the Backlight cost proportion is 1:3.7, also the fourth season of 2010will reduce to 1:2.8. From: led bulb light
