Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Andrew J. Ouderkirk
Michael F. Weber
James M. Jonza
Carl A. Stover
Sanford Cobb, Jr.
David L. Wortman
Olester Benson, Jr.
Minnesota Mining And Manufacturing Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andrew J. Ouderkirk, Michael F. Weber, James M. Jonza, Carl A. Stover, Sanford Cobb, Jr., David L. Wortman, Olester Benson, Jr., Minnesota Mining And Manufacturing CompanyfiledCriticalAndrew J. Ouderkirk
Priority claimed from PCT/US1994/014325external-prioritypatent/WO1995017699A1/en
Publication of CA2177711A1publicationCriticalpatent/CA2177711A1/en
Application grantedgrantedCritical
Publication of CA2177711CpublicationCriticalpatent/CA2177711C/en
A multiple layer reflective polarizer (12) is described. This element is placed between an optical cavity (24) and an LCD module (16) to form an optical display. The reflective polarizer reflects some light into the optical cavity (24) where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display.
Elliptic polarizer formed of transparent protective layer, polarizer layer, transparent support and optical anisotropic layer of liquid-crystal molecules