Polarizer
Assignee3M Innovative Properties Company
InventorsKristy A. Gillette, James E. Lockridge, Brianna N. Nieson, Joan M. Noyola, Jason S. Petaja, Matthew B. Johnson, Jeffrey W. Hagen
Life of this patent
Estimating the term…
Abstract
A polarizer including an oriented polymeric first layer is described. The oriented polymeric first layer is preparable from a mixture of polyvinyl alcohol and crosslinker where the crosslinker is included in the mixture at 5 to 40 percent by weight based on the total weight of the polyvinyl alcohol and crosslinker. The oriented polymeric first layer is a substantially uniaxially drawn layer, in that for U=(1/MDDR−1)/(TDDR1/2−1), U is at least 0.85, with MDDR being a machine direction draw ratio and TDDR being a transverse direction draw ratio.
Claims12
A polarizer comprising an oriented polymeric first layer, the oriented polymeric first layer preparable from a mixture comprising polyvinyl alcohol and crosslinker, the crosslinker included in the mixture at 5 to 40 percent by weight based on the total weight of the polyvinyl alcohol and crosslinker, wherein the oriented polymeric first layer is a substantially uniaxially drawn layer, in that for U=(1/MDDR−1)/(TDDR1/2−1), U is at least 0.85, with MDDR being a machine direction draw ratio and TDDR being a transverse direction draw ratio.
Dependencies are inferred from the claim text.