Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822257 | Organic light emitting diode device with organic hole transporting material and phosphorescent material | Yung-Chih Lee, Wei-Su Chen, Chi-Chih Liao | 2004-11-23 |
| 6803718 | Organic electroluminescent display device and method for packaging the same | Chao-Chin Wu, Meng-Chieh Liao | 2004-10-12 |