Optical laminate and method for determining authenticity thereof, and article
AssigneeZeon Corporation
InventorYasuhide Fujino
Life of this patent
Estimating the term…
Abstract
An optical layered body comprising a polarized light separation layer and a first display layer, wherein: the polarized light separation layer is a linear polarizer including one of an absorptive linear polarizer and a reflective linear polarizer; the first display layer is a linear polarizer including the other of the absorptive linear polarizer and the reflective linear polarizer; the first display layer overlaps with a part of the polarized light separation layer; and an average degree of polarization of the polarized light separation layer at a wavelength of 400 nm to 680 nm is 0.60 or more.
Claims12
An optical layered body comprising a second display layer including a reflective linear polarizer, a polarized light separation layer and a first display layer, in this order, wherein:
- the polarized light separation layer is a linear polarizer including an absorptive linear polarizer;
- the first display layer is a linear polarizer including a reflective linear polarizer;
- the first display layer overlaps with a part of the polarized light separation layer;
- and
- an average degree of polarization of the polarized light separation layer at a wavelength of 400 nm to 680 nm is 0.60 or more.
An optical layered body comprising a second display layer including an absorptive linear polarizer, a polarized light separation layer, and a first display layer, in this order, wherein:
- the polarized light separation layer is a linear polarizer including a reflective linear polarizer;
- and
- the first display layer is a linear polarizer including an absorptive linear polarizer;
- the first display layer overlaps with a part of the polarized light separation layer;
- and
- an average degree of polarization of the polarized light separation layer at a wavelength of 400 nm to 680 nm is 0.60 or more.
Dependencies are inferred from the claim text.