Optical film stack with retardance layer having in-plane retardance of greater than 2.0 microns
Optical film stacks are disclosed. The optical film stacks can include a first reflective polarizer, a second reflective polarizer, and a retardance layer disposed between the first reflective polarizer and the second reflective polarizer.
3M INNOVATIVE PROPERTIES COMPANY
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inventional inventional additional inventional inventional
Kenneth A. Adam D. Youn Sihn Myeong-Kyun Seo-Hern
Epstein Haag Kim Kang Lee