BROADBAND REFLECTIVE LIQUID CRYSTAL FILM, A LIGHT SOURCE ASSEMBLY INCLUDING THE BROADBAND REFLECTIVE LIQUID CRYSTAL FILM AND A LIQUID CRYSTAL DISPLAY INCLUDING THE BROADBAND REFLECTIVE LIQUID CRYSTAL FILM

摘要

PURPOSE: A broadband reflective liquid crystal film, a light source assembly including the broadband reflective liquid crystal film and a liquid crystal display including the broadband reflective liquid crystal film are provided to implement a certain reflectivity over a visible ray band by one liquid crystal layer.;CONSTITUTION: A broadband reflective liquid crystal film, a light source assembly including the broadband reflective liquid crystal film and a liquid crystal display including the broadband reflective liquid crystal film includes a cholesteric liquid crystal layer of which a liquid crystal pitch is changed from a first surface to a second surface. At this time, the cholesteric liquid crystal layer has a first liquid crystal pitch in a first region(111) adjacent to the first surface and has a second liquid pitch in a second region(112) lower than the first liquid pitch. Also, the cholesteric liquid crystal layer has a third liquid crystal pitch in a third region(113) between first and second regions.;COPYRIGHT KIPO 2011