Liquid Crystal Based Light Control Element

摘要

A light control element ( 100 ) is disclosed having a first chamber ( 110 ) encapsulating a first liquid crystal based light absorbing material ( 112; 114 ) being switchable from a first orientation in which said material ( 112; 114 ) predominantly absorbs light having a first polarization direction to a second orientation in which said material ( 112; 114 ) is substantially transparent and that further has a second chamber ( 120 ) encapsulating a second liquid crystal based light absorbing material ( 122; 124 ) being switchable from a first further orientation in which said material ( 122; 124 ) predominantly absorbs light having a polarization direction substantially perpendicular to the first polarization direction to a second further orientation in which said material ( 122; 124 ) is substantially transparent. A plurality of electrodes is present for switching the orientations of the first and second light absorbing materials. Consequently, a polarization independent light control element ( 100 ) is obtained.