A waveguide for use in a back lighting device includes a moth-eye structured
surface.
A back lighting system includes a lighting device, a display panel, and a waveguide
for redirecting light generated by the light source toward the display panel. A
first light-redirecting film, which can include a plurality of moth-eye structures,
can be positioned between the waveguide and the display panel. The first light-redirecting
film can also include a plurality of linear prisms. A second light-redirecting
film is also provided that can include a plurality of moth-eye structures and a
plurality of linear prisms. The second light-redirecting film can be positioned
between the first light-redirecting film and the display panel. A diffuser can
be positioned between the first light-redirecting film and the waveguide and/or
between the second light-redirecting film and the display panel.
