- Display
- Artificial Electronic Skin
- Stretchable Electronics

2003 ~ 2006 Senior Research Scientist, Eastman Kodak Company
2012 ~ 2013 Visiting Professor, Chem. Eng., Stanford University
2017 ~ Present Board Member, Society of Information Display
2010 ~ Present Convenor, IEC TC110 WG8 (Flexible Display Device)
2010 ~ Present Board Member, KIDS (2020~2021, Vice President)
2020 ~ Present Head, SNU Entrepreneurship Center
2006 ~ Present Professor, ECE, Seoul National University
2023 ~ Present Member, Advisory Group for Ministry of Trade, Industry and Energy

2021 Science and ICT of Korea Government (100 Technology Achievement Award)
2019 Ministry of Science and ICT of Korea Government Award (Scientist of the Month Award) November
2018 Ministry of MOTIE of Korea Government Award