The first artificial 120-kilogram sapphire crystal was created in nanchang "guanggu", which marks the future of the smartphone industry in jiangxi province, which can be used for the home made sapphire touch screen. In addition, sapphire crystal is also the key material for making LED lamps. The production of this crystal will further improve the jiangxi LED lighting industry chain and help the construction of nanchang guanggu. "We supply the iphone lens cover and the home button." Zhang zhenzhi, the chief engineer responsible for the project, said the "sapphire crystal" that they produce will also focus on electronic application areas such as smart phone panels, in addition to targeting optical applications.

As the "nanchang guanggu" core area, nanchang high-tech zone has vigorously introduced sapphire substrate LED chip manufacturing project while strengthening the research and development of silicon based LED technology and application field.

According to long-term attention to this area of Harbin industrial university professor Zhang Mingfu introduction, "sapphire crystal material is the key to making LED lights, our independent research and development of 120 kg of sapphire crystal, break through the crystal growth quality is not stable, specification is not big, and many other problems, marked the jiangxi sapphire crystal with the scale of production conditions."

It is inevitable that LED semiconductor lamps with energy saving and environmental protection will replace incandescent lamps and fluorescent lamps. The sapphire crystal, which has been developed, means that the "bottleneck" that restricts the development of China's LED industry will be broken.

According to the introduction, sapphire crystal is not only a key material for making LED lamps, but also an important window material for infrared military equipment, satellite space technology and high strength laser.

At the end of 2015, jiangxi province formulated a plan to make nanchang a national LED optical valley, and built a base for the r&d, manufacturing and application of LED all-industrial chain with international core competitiveness. By 2020, the main business revenue of the LED industry will exceed 100 billion yuan, accounting for 15% of the country, with the income of silicon substrate LED technology reaching 50 billion yuan.