1. School of Electronics Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, Korea
2. Department of Sensor and Display Engineering, Kyungpook National University, 80 Daehakro Bukgu, Daegu, Korea
3. LG Display Co., Ltd., 161, Limsu-Dong, Gumi-si, Kyungsangbook-do, Korea