Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5823662 | High efficiency illumination system | — | 1998-10-20 |
| 5767836 | Gray level addressing for LCDs | Terry J. Scheffer, Benjamin R. Clifton | 1998-06-16 |
| 5757547 | High efficiency homogeneous polarization converter | Jeffrey Rodman, Brian L. Hinman, Pasquale Romano | 1998-05-26 |
| 5742438 | Projection illumination system | Jonathan R. Biles, David K. Booth | 1998-04-21 |
| 5738427 | Projector cooling system | David K. Booth | 1998-04-14 |
| 5682216 | LCD projector capable of preventing thermal shimmering by using a thermal diffusion film | Falcon Lin, Shih-Yuan Yu, David K. Booth | 1997-10-28 |
| 5642927 | LCD projector with retractable projection lens assembly | David K. Booth | 1997-07-01 |
| 5642133 | Split interval gray level addressing for LCDs | Terry J. Scheffer, Benjamin R. Clifton | 1997-06-24 |
| 5628553 | Projector illumination system | David K. Booth | 1997-05-13 |
| 5622417 | Invertible and orthoscopic liquid crystal display projector | David K. Booth | 1997-04-22 |
| 5608551 | Display panel assembly with microlens structure | Jonathon R. Biles | 1997-03-04 |
| 5548422 | Notch filters with cholesteric polarizers with birefringent film and linear polarizer | Jonathan R. Biles, Terry J. Scheffer, Gary B. Kingsley | 1996-08-20 |
| 5508716 | Plural line liquid crystal addressing method and apparatus | Dennis W. Prince, Benjamin R. Clifton, Terry J. Scheffer | 1996-04-16 |
| 5459495 | Gray level addressing for LCDs | Terry J. Scheffer, Benjamin R. Clifton | 1995-10-17 |
| 5367390 | Contrast improvement for display panels with masks between electrodes and covering split between electrode portions | Terry J. Scheffer, Kurt R. Munson | 1994-11-22 |
| 5355188 | Method and apparatus for distortion correction in optical projectors | Jonathan R. Biles, Gary B. Kingsley | 1994-10-11 |
| 5353075 | Convertible flat panel display system | Jonathon R. Biles, Paul E. Gulick | 1994-10-04 |
| 5124818 | LCD system having improved contrast ratio | Paul E. Gulick | 1992-06-23 |
| 5050965 | Color display using supertwisted nematic liquid crystal material | Paul E. Gulick | 1991-09-24 |
| 4966441 | Hybrid color display system | — | 1990-10-30 |
| 4952036 | High resolution LCD display system | Paul E. Gulick | 1990-08-28 |
| 4917465 | Color display system | Paul E. Gulick | 1990-04-17 |
| 4857906 | Complex waveform multiplexer for liquid crystal displays | — | 1989-08-15 |