1. Mobile Display Laser Group, Samsung Display Vietnam (SDV), Yen Trung, Yen Phong, Bac Ninh 16251, Vietnam
2. Department of Ultra Precision Machines and Systems, Korea Institute of Machinery and Materials, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, South Korea
3. Department of Mechanical System Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 39177, South Korea