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The world LED market, the top 5 vendors by industry control, that is, Nichia Chemical of Japan (Nichia), Toyoda Gosei (ToyodaGosei), Cree, the United States, Europe, Philips (PhilipsLumileds) and Osram (Osram). This five vendors in order to maintain a competitive edge, maintain its market share in number of patent applications, covering almost the raw materials, equipment, packaging, application, including the entire industrial chain. Between LED manufacturers and through cross-licensing patents to R & D and production, not only hampered the emergence of new entrants, to some extent also increased the production costs.
