Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8125590 | Optical film, backlight unit including the same and liquid crystal display device having the same | Yongsu Kim, Seungho Lee, Changjong Kim, Seungwook Kwon, Cheol Yoon | 2012-02-28 |
| 8023068 | Optical sheet, backlight unit, and liquid crystal display | Hanbitt Joo | 2011-09-20 |
| 7719636 | Optical sheet and liquid crystal display using the same | Changjong Kim, Seoungho Lee, Cheol Yoon, Seungwook Kown, Yongsu Kim +1 more | 2010-05-18 |