1. Department of Sensor and Display Engineering, Kyungpook National University, Daegu, Korea
2. LG Display Co., Ltd., Paju, Korea
3. School of Electronics Engineering, Kyungpook National University, Daegu, Korea
4. Department of Advanced Materials Engineering for Information and Electronics and Regional Innovation Center, Components and Materials for Information Displays, Kyung Hee University, Yongin, Korea
5. Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Korea