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