Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8836896 | Optical sheet for controlling the direction of a light ray | Jun-Sang Park, Hee-Cheong Lee, Sang Hoon Lee, Tae Yong Ryu | 2014-09-16 |
| 7872711 | Optical sheet for TFT-LCD back light unit and liquid crystal display having the optical sheet | Moon Bok Lee, Jun-Sang Park | 2011-01-18 |