1. Realistic Media Research Center, Innovative Technology Research Division, Gumi Electronics and Information Technology Research Institute (GERI), 350-27, Gumidaero, Gumi, Gyeongbuk 39253, Republic of Korea
2. Department of Information Display, Kyung Hee University, 26, Kyungheedea-ro, Dongdaemoon-gu, Seoul 02447, Republic of Korea
3. Department of Semiconductor Engineering, Gyeongsang National University, Jinju, Gyeongsangnam-do 52828, Republic of Korea