1. National & Local Joint Engineering Research Center of Semiconductor Display and Optical Communication Devices, South China University of Technology, Guangzhou 510641, China
2. Guangdong Provincial Key Laboratory of Semiconductor Micro Display, Foshan Nationstar Optoelectronics Company Ltd, Foshan 528000, China
3. School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong 100872, China