At present,the LED lighting market SMD LED light source used by the frame mainly includes 2835,3014,5730 and other specifications.These frame surface plating high reflection layer are metal silver.Silver is a very active metal,it is easy to oxidation and sulfidation,easy to lead to the LED light source internal black,and even dead lights.LED light source encapsulation silica gel are used in high refractive index(n=1.5)silica gel,high refractive index(n=1.5)encapsulation of silica gel airtight,can be effectively insulated from the air in the O,S elements of the framework of the surface of the silver layer attack,but still has certain limitations,when the air in the O,S However,it still has some limitations,when the O,S elements in the air is very rich,it will still enter the frame for a long time,which will lead to sulphurisation and oxidation problems,and then lead to the failure of the device.The new anti-sulfuration frame adds a layer of TiO2 and AL2O3 combination of anti-sulfuration coating design on the silver layer,and the experimental results show that the new TiO2 and AL2O3 combination of anti-sulfuration coating can improve the surface reflectivity,and at the same time block the O,S elements in the air to enter the frame inside the chemical reaction with the silver,to further enhance the reliability of the SMD LED light source.
LEDvulcanizationhigh folding ratiolow folding ratio
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