| abstract |
(57) [Summary] (Modified) [PROBLEMS] Broadband reflection polarized light having excellent optical properties at a wide viewing angle, in particular, exhibiting off-axis brightness, and having a band covering a substantial part to the entire visible spectrum of light. Provide a board. A polymerized mesogenic material layer having a planar-oriented helical twist structure, comprising: a) one or more non-chiral polymerizable mesogen compounds; b) one or more polymerizable and / or mesophase-forming compounds. C) a chiral polymerizable mesogen material mixture containing a polymerization initiator is applied in a layer form on a substrate or between two substrates, and is planarly oriented so that the molecular helix axis extends in the lateral direction of the layer; Or a broadband reflective polarizer wherein the substrate is removed from the polymerized material, if necessary, by exposure to radiation and polymerizing, wherein a) a polymerizable material is applied and polymerized between two different substrates and / or B) A polarizing plate in which at least one substrate has a barrier layer on an adjacent surface of a polymerizable material film, a method for producing the same, and a liquid crystal display having the same. |