The formation of Chinese LED industry chain widening application of promoting growth

After more than 30 years of development, China's LED industry has gone through the purchase of devices, buy chips, buy epitaxial film after the road, has been initially achieved epitaxial wafer and chip production, the formation of a more complete industrial chain.

The initial formation of the industrial chain

The first commercial LED appeared in 1968, the first GaP (Lin Huajia), GaAsP (arsenic) red, yellow, green LED began to apply to the indicator, digital and text display (). The following ten years, high brightness, color has become the main subject of LED technology research. In 1991 the Japanese Toshiba Co and the United States HP company developed four y Department of orange, yellow, yellow green high brightness LED. In 1994 Japan Nichia Corporation developed GaN (Dan Huajia) blue green LED. In 1995, the high brightness blue, green LED has entered the mass production, so that the wavelength of light from the red LED to cover the entire range of the visible spectrum, and has a luminous efficiency of up to 30%. Followed by the successful development of the white LED, but also greatly expanded the application of LED, since then began to form a Chaoyang unlimited LED lighting industry.

The development of LED in China started in 1960s. November 1970 in Shanghai held a national conference on GaAs, water vapor epitaxy report made "research results of gallium phosphide red light emitting diode", from China's LED materials and devices research and development officially started. LED industry in 1980s, in 90s the LED industry has begun to take shape, the rapid development of the late 90s.

In the early stage, most of the domestic LED enterprises were packaging enterprises, all of which were imported from abroad. In this period, the industry is mainly packaging, the products are mainly used in signal, sign, digital display and so on. In 1998, the state "95" technical transformation so that the establishment of the Nanchang factory of the 746 Xin Lei photoelectric company produced a bright LED chip only 1 billion. 1999 Hebei Huineng Electronic Co. Ltd. and Hebei Lide electronics company completed InGaAlP ultra high brightness LED epitaxial wafer and chip production lines, the annual production capacity of epitaxial wafers 10 thousand and chip 100 million, which changed our LED wafer and chip all dependence on imports.