Associate Professor Yoshiyuki SUZURI had a press release on his research that is world 1st development and could make flexible OLED panels long-life.
📚 Yamagata University HP
https://www.yamagata-u.ac.jp/jp/information/press/20180209_01/
📚 Yamagata University Press Release Materials
https://iomform.yz.yamagata-u.ac.jp/uploads/1/20180201_pressrelease.pdf