High Contrast, Wide Viewing Angle LCD Light-Switching Element
| Publication Number: | SI21526A |
| Application Date: | 16. 5. 2003 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Matej Bažec, Bojan Marin, Janez Pirš, Silvija Pirš, Andrej Vrečko |
| Title: | Visoko kontrastni tekočekristalni svetlobno preklopni element s širokim vidnim kotom [SL], High Contrast, Wide Viewing Angle LCD Light-Switching Element [EN] |
| Description: | The invention suggests a new concept of an LC light switching element, which allows excellent angle compensation of dimming light by using a simple c-panel with negative double-refraction in the compensation layer. The concept is based on simultaneous application of a high angle symmetrical STN LC structure (preferably 180 degrees distortion) and maximum application of one of the two inherent ways of the passing of light (prefer- ably ordinary ray). The solution is best suited for various applications in switching light like protective welding filters, as well as multi-segment large displays, where it provides a high level of uniformity of dimming light in the closed (dark) state. |
| Drawings: |  |
| Category: | Physical Sciences |
| Technology application codes: | Physical and exact sciences, Protecting man and environment |
| Market application codes: | Other electronics related, Industrial products |
| www: | https://worldwide.espacenet.com/patent/search/family/033448813/publication/SI21526A?q=si21526 |
| Patent offices: | UIL RS |
Extended patent application
| Publication Number: | EP1625445B1 |
| Application Date: | 14. 4. 2004 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Matej Bažec, Bojan Marin, Janez Pirš, Silvija Pirš, Andrej Vrečko |
| Title: | High Contrast, Wide Viewing Angle LCD Light-Switching Element |
| www: | https://worldwide.espacenet.com/patent/search/family/033448813/publication/EP1625445B1?q=EP1625445B1 |
Extended patent application
| Publication Number: | WO2004102265A1 |
| Application Date: | 14. 4. 2004 |
| Assignee/Applicant: | Jožef Stefan Institute [SI], Matej Bažec [SI], Bojan Marin [SI], Janez Pirš [SI], Silvija Pirš [SI], Andrej Vrečko [SI] |
| Inventor: | Matej Bažec, Bojan Marin, Janez Pirš, Silvija Pirš, Andrej Vrečko |
| Title: | High Contrast, Wide Viewing Angle LCD Light-Switching Element |
| www: | https://worldwide.espacenet.com/patent/search/family/033448813/publication/WO2004102265A1?q=pn%3DWO2004102265A1 |
Extended patent application
| Publication Number: | US7420631B2 |
| Application Date: | 14. 4. 2004 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Matej Bažec, Bojan Marin, Janez Pirš, Silvija Pirš, Andrej Vrečko |
| Title: | High Contrast, Wide Viewing Angle LCD Light-Switching Element |
| www: | https://worldwide.espacenet.com/patent/search/family/033448813/publication/US7420631B2?q=US7420631B2 |