Semiconductor lighting based on GaN white LEDs, has formed a strategic emerging industry with Annual output value of hundreds of billions RMB. According to the characteristics of LED lighting sources, our group took the lead in carrying out research on 3D free-form surface illumination optical system design based on non-imaging optics. We originally developed a series of technologies for controlling and transmitting the light rays emitting from LEDs to the illuminated area with high efficiency and uniformity by the use of 3-D free-form optical surface, and broke through the bottleneck of the practical application of semiconductor lighting. The related research results have been achieved industrial production, and the products have been widely used in many lighting projects in 27 provinces of China, and have been exported to the United States, Japan and other countries. The practical application of our products shows the superior lighting performance and energy saving effect. The related research was awarded the First Class Prize of Guangdong Science and Technology Progress Award in 2010, and Second Class Prize of National Award for Technological Invention of China in 2014.

My current research interests include semiconductor lighting and display technology, novel optoelectronic devices and systems for optical information processing, imaging, detection, and 3D display, flexible optoelectronic devices, optoelectronic devices for biomedical applications.

As Principal Investigator, I have managed project of Chinese National Natural Science Foundation, project of International Cooperation and Exchanges of Chinese National Natural Science Foundation, sub project of National High Technology Research and Development Program of China, sub project of National Key Technology Research and Development Program of the Ministry of Science and Technology of China, project Funded by Tsinghua National Laboratory for Information Science and Technology (TNList), project of Opened Fund of the State Key Laboratory on Integrated Optoelectronics, and so on.