Patent ID: 8081270

Claim:
A backlight module, comprising an optical cavity for reflecting and depolarizing light that is incident upon a front surface of said optical cavity, a multilayer polarizer comprising a plurality of layers, wherein said multilayer polarizer faces the front surface of the optical cavity and the layers are arranged in such a way that a light of polarization substantially parallel to the transmission axis of said multilayer polarizer is substantially transmitted and the light substantially orthogonal polarization is substantially reflected by said multilayer polarizer in at least one predetermined wavelength subrange of the visible wavelength range, and wherein at least one of said layers comprises rod-like supramolecules forming at least partially a three-dimensional structure in the layer, and said rod-like supramolecules comprise at least one polycyclic organic compound with a conjugated π-system and functional groups which are capable of forming non-covalent bonds between said supramolecules, said non-covalent bonds are selected from the group consisting of H-bonds and coordination bonds.