Guangxue Chen, PhD, received his degree from The PLA Information Engineering University, worked as a Distinguished Professor at South China University of Technology since 2007, focuses on color 3D printing and Digital printing. Since 2015, Dr. Chen had also been the director of YUTO Academy of Packaging Technology in Shenzhen YUTO Packaging Technology CO., LTD. He is a membership of International Color Vision Society, E-mail: chengx@scut.edu.cn.