Korea's state-run ETRI (Electronics and Telecommunications Research Institute) says they developed a transparent, oxide transistor and using this, a very stable light modulator that enhanced the aperture ratio of a AMOLEDs.
ETRI said it developed the new oxide transistor by using atomic layer deposition process that greatly enhances operational stability and showed excellent electronic and optical qualities. This will mean faster production of such displays.
ETRI has applied for 51 patents (domestic and international). They are talking with a private company to transfer the technology. We can assume this is either Samsung (who are already working on transparent OLEDs).
Apparantly they are quite excited about this new technology, and said that it might allow Korea to 'dominate' the transparent OLEDs industry.