Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10431776 | White organic light emitting diode and display device using the same | Ki-Woog Song, Sung-Hoon Pieh, Seung-Ryong Joung, Tae-Il Kum, Tae-Shick Kim | 2019-10-01 |
| 10355231 | Organic light emitting display device | Sung-Hoon Pieh, Chang Wook Han, Hong-Seok Choi, Ki-Woog Song, Seung Hyun Kim | 2019-07-16 |
| 10249838 | White organic light emitting device having emission area control layer separating emission areas of at least two emission layers | Jae Il Song, Dong Hyuk Kim | 2019-04-02 |
| 10177330 | Organic light emitting display device with two emission portions | Sung-Hoon Pieh, Chang Wook Han, Hong-Seok Choi, Ki-Woog Song, Seung Hyun Kim | 2019-01-08 |