Technology into the biggest obstacle to
Interestingly, the same as the polysilicon industry, domestic LED lighting manufacturers, though they have a vast market size, but faces the dilemma of lack of core technology.
LED lighting is the upstream industry, chip suppliers, light-emitting materials, suppliers, mid-stream is a packaging company, the lower is the application of LED lighting business. Century Securities analyst, said recorded ground, LED lighting epitaxial wafers and chips account for about 70% of the profits of the industry, LED lighting package, about 15%, LED lighting applications, accounting for about 15%. Luminous efficiency requirements based on the different, LED chips can be divided into high-power chips and low-power chips. In the applications, low-power chips are mainly used in mobile phones, notebook computers and TV instructions efficiency requirements for light-emitting area is not very high, high-power chips are mainly used in street lighting and other fields. Low-power chip quality of the materials on the wafer not ask for much, many domestic enterprises currently have mastered LED low power chip technology; high-power LED epitaxial material requirements for high quality, if the material growth is not high, it will lead to chip conversion efficiency is not high , heat more.
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