Process for Production of Compensational Polymeric Layer for LCD Optical Switches and Construction of Such a Switch
Publication Number: | SI20291A |
Application Date: | 15. 6. 1999 |
Assignee/Applicant: | Jožef Stefan Institute [SI] |
Inventor: | Robert Blinc, Bojan Marin, Rok Petkovšek, Janez Pirš, Silva Pirš, Martin Čopič |
Title: | Postopek izdelave kompenzacijske polimerne plasti za LCD optične preklopnike in konstrukcija takega preklopnika [SL], Process for Production of Compensational Polymeric Layer for LCD Optical Switches and Construction of Such a Switch [EN] |
Description: | The proposed invention is solving a technical problem of compensation of the angular dependence of contrast for optical devices with liquid crystal displays (LC optical switches operating on the principle of electrically controlled optical birefringence) by means of a compensational layer exhibiting a negative optical birefringence which enables optical compensation of the angular dependence of birefringence of the LC layer in the state where the LC molecules are arranged homeotropically (a typically optically positive birefringence). The procedure of manufacture of the optically negative birefringence compensational layer is based on a controlled spontaneous deformation of polymeric molecules during the polymerisation process. The procedure is made possible by using known and well-controlled technological processes and enables a mass production of compensational layers to be carried out. The invention is solving both the process of manufacture of a compensational layer with the required optically negative birefringence and the construction/manufacturing procedure of the optical switch using such a compensational layer. |
Drawings: | |
Category: | Physical Sciences |
Technology application codes: | Electronics, IT and telecoms, Physical and exact sciences |
Market application codes: | Other electronics related, Industrial products |
www: | https://worldwide.espacenet.com/patent/search/family/020432499/publication/SI20291A?q=si20291 |
Patent offices: | UIL RS |
Extended patent application
Publication Number: | AT324613T |
Application Date: | 12. 6. 2000 |
Assignee/Applicant: | Jožef Stefan Institute [SI] |
Inventor: | Robert Blinc, Bojan Marin, Rok Petkovšek, Janez Pirš, Silva Pirš, Martin Čopič |
Title: | Verfahren Zur Herstellung Einer Polymerischen Kompensatorschicht Für Eine Flüssigkristallanzeigevorrichtung |
www: | https://worldwide.espacenet.com/patent/search/family/020432499/publication/AT324613T?q=pn%3DAT324613T |
Extended patent application
Publication Number: | DE60027565T2 |
Application Date: | 12. 6. 2000 |
Assignee/Applicant: | Jožef Stefan Institute [SI] |
Inventor: | Robert Blinc, Bojan Marin, Rok Petkovšek, Janez Pirš, Silva Pirš, Martin Čopič |
Title: | Verfahren Zur Herstellung Einer Polymerischen Kompensatorschicht Für Eine Flüssigkristallanzeigevorrichtung |
www: | https://worldwide.espacenet.com/patent/search/family/020432499/publication/DE60027565T2?q=DE60027565T2 |
Extended patent application
Publication Number: | AU5864300A |
Application Date: | 12. 6. 2000 |
Assignee/Applicant: | Jožef Stefan Institute [SI] |
Inventor: | Robert Blinc, Bojan Marin, Rok Petkovšek, Janez Pirš, Silva Pirš, Martin Čopič |
Title: | Process for The Manufacturing of the Polymer Compensation Layer for LCD Optical Light Shutter and The Construction Thereof |
www: | https://worldwide.espacenet.com/patent/search/family/020432499/publication/AU5864300A?q=pn%3DAU5864300A |
Extended patent application
Publication Number: | EP1192499B1 |
Application Date: | 12. 6. 2000 |
Assignee/Applicant: | Jožef Stefan Institute [SI] |
Inventor: | Robert Blinc, Bojan Marin, Rok Petkovšek, Janez Pirš, Silva Pirš, Martin Čopič |
Title: | Process for The Manufacturing of the Polymer Compensation Layer for LCD Optical Light Shutter and The Construction Thereof |
www: | https://worldwide.espacenet.com/patent/search/family/020432499/publication/EP1192499B1?q=EP1192499B1 |
Extended patent application
Publication Number: | WO0077561A3 |
Application Date: | 12. 6. 2000 |
Assignee/Applicant: | Jožef Stefan Institute [SI], Robert Blinc [SI], Bojan Marin [SI], Rok Petkovšek [SI], Janez Pirš [SI], Silva Pirš [SI], Martin Čopič [SI] |
Inventor: | Robert Blinc, Bojan Marin, Rok Petkovšek, Janez Pirš, Silva Pirš, Martin Čopič |
Title: | Process For Manufacturing A Polymer Compensation Layer For An LCD, And Construction Of An LCD |
www: | https://worldwide.espacenet.com/patent/search/family/020432499/publication/WO0077561A3?q=WO0077561A3 |
Extended patent application
Publication Number: | US7132133B1 |
Application Date: | 14. 2. 2002 |
Assignee/Applicant: | Jožef Stefan Institute [SI] |
Inventor: | Robert Blinc, Bojan Marin, Rok Petkovšek, Janez Pirš, Silva Pirš, Martin Čopič |
Title: | Process for The Manufacturing of the Polymer Compensation Layer for LCD Optical Light Shutter and the Construction Thereof |
www: | https://worldwide.espacenet.com/patent/search/family/020432499/publication/US7132133B1?q=US7132133B1 |