Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8226242 | Projection display for displaying a color image by modulating a plurality of single beams according to image information | Dae-sik Kim, Young-chol Lee, Alexei Borodouline | 2012-07-24 |
| 8182098 | Projection optical system | Alexey Vladimirovich BRATISHCHEV, Irina Vladimirovna SERGIEVSKAYA, Maria Potapova, Yung-jun Park, Sang Hyun SOHN +1 more | 2012-05-22 |
| 7922339 | Compact rear projection display | Tae-hong Jeong, Young-chol Lee, Alexei Borodouline | 2011-04-12 |
| 7781714 | Projection display adopting line type light modulator including a scroll unit | Young-chol Lee, Joon-Seok Moon | 2010-08-24 |
| 7568805 | Illumination unit and image projecting apparatus employing the same | Kye-hoon Lee, Won-Yong Lee, Young-chol Lee | 2009-08-04 |
| 7502534 | Retro-reflective type light pipe, illumination device including the same and projection display including the illumination device | Young-chol Lee | 2009-03-10 |
| 7448756 | Slim optical projection system and image display apparatus employing the same | Kun-ho Cho, Alexei Borodouline | 2008-11-11 |
| 7331679 | Reflection unit having a mirror array, and projection display system employing the same | Kun-ho Cho, Alexei Borodouline, Ji-whan Noh | 2008-02-19 |
| 7306352 | Illuminator | Alexel Borodouline, Young-chol Lee, Won-Yong Lee | 2007-12-11 |
| 7267441 | Projection display | Young-chol Lee, Won-Yong Lee, Kye-hoon Lee | 2007-09-11 |
| 7267446 | Projection display | Young-chol Lee, Won-Yong Lee, Kye-hoon Lee | 2007-09-11 |
| 7048380 | Color switching projection apparatus with two liquid crystal panels | — | 2006-05-23 |
| 7001022 | Illumination system and projection system adopting the same | Sung-ha Kim | 2006-02-21 |
| 6918682 | Illumination system and projection system employing the same | Sung-ha Kim, Soon-Cheoi Choi | 2005-07-19 |
| 6834963 | Illumination system and projector adopting the same | Sung-ha Kim | 2004-12-28 |
| 6799849 | Illumination system and projector adopting the same | Sung-ha Kim | 2004-10-05 |