1. National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei 230009, China
2. School of Microelectronics, Hefei University of Technology, Hefei 230009, China
3. State Key Laboratory of Transducer Technology, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
4. Department of Automation, University of Science and Technology of China, Hefei 230026, China