High Contrast, Wide Viewing Angle LCD Light-Switching Element | Project and Innovation Support
12/01/2021

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