BROADBAND REFLECTIVE LIQUID CRYSTAL FILM, METHOD FOR MANUFACTURING SAME, LIGHT SOURCE ASSEMBLY COMPRISING THE BROADBAND REFLECTIVE LIQUID CRYSTAL FILM, AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

Provided are a broadband reflective liquid crystal film and a method for manufacturing same. The broadband reflective liquid crystal film comprises a cholesteric liquid crystal layer in which the pitch of the liquid crystals varies from a first surface toward a second surface. The cholesteric liquid crystal layer has a first liquid crystal pitch in a first region adjacent to the first surface, a second liquid crystal pitch smaller than the first liquid crystal pitch in a second region adjacent to the second surface, and a third liquid crystal pitch larger than the first liquid crystal pitch in a third region formed between the first region and the second region.