Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452646 | Optical retarder stack formed of multiple retarder sheets | Kristina M. Johnson | 2002-09-17 |
| 6417892 | Color filters, sequencers and displays using color selective light modulators | Kristina M. Johnson | 2002-07-09 |
| 6380997 | Achromatic polarization inverters for displaying inverse frames in DC balanced liquid crystal displays | Kristina M. Johnson, Michael G. Robinson, Jianmin Chen | 2002-04-30 |