19/12/2014

Technology on LED packaging and industrial trends

The capability on LED packaging in China is very strong, according to preliminary investigation, there are more than 100 enterprises who have ability in doing LED packaging with large scale while about 500 – 600 enterprises with small scale. The total capability of packaging is 30 billion pieces per year. The export quantity of processed LED is as many as 10 billion pieces per year. It is estimated that the LED packaging capability in China (including foreign invested enterprises) could be as high as 50 billion pieces per year. These enterprises are: Xiamen Hualian Electronics, Foshan Nation Star, Jiangsu Wensum, Cotco Holdings (Huizhou), Shenzhen Quantum, Ningbo Hepo, Jiangxi Lianchuang, Tianjin Tianxing, Langfang Golden Valley, Shenzhen Leman. They can package various LED products like: LED display of different outline dimension, single LED, complex LED, pixel LED, digital display, back light source, SMD-LED, miniature LED, matrix display, special display, white LED, power LED and power LED module, etc. The match capability of the material for packaging and matched parts is good, industrial chain has been created. What should be stressed here is that about a dozen of enterprises in China are able to provide phosphor to package the white LED. In recent years, better result has been achieved in increasing phosphor light excitated efficiency and ability in anti-light attenuation.

Regarding the packaging of white light and power LED, better equipped companies had devoted great effort to its process and product research and development. They are: No. 13 Institute of China National Electronic Group, Xiamen Hualian Electronics, Foshan Nation Star, Shenzhen Quantum, Cotco Holdings (Huizhou), main technical problems in the power LED packaging have been solved gradually in the process R & D, such as increasing lighting efficiency in packaging and base heat sink performance, reducing heat resistance, raising anti-light attenuation capability and operation life. At the same time, major technical problems have been solved in the packaging process for white led lights china like : the control on the lighting uniformity, consistency, the color temperature and color display, anti light attenuation ability, reliability and white light parameter testing, etc. At present, white light and power LED devices could be lot packaged, the light efficiency of 1W white LED can reach 50~60lm/w, heat resistance is 10k/w.

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