Patterned light control film

A light control film comprising a plurality of spaced apart first grooves at least partially embedded in an optical medium between major first and second surfaces of the optical medium, the optical medium substantially transparent at each wavelength in a predetermined wavelength range extending from about 400 to about 600 nm, each first groove having a closed bottom, a maximum height H in a thickness direction (z) of the light control film, and a maximum width W in a width direction (x) of the light control film perpendicular to the thickness direction, H/W≥1, each first groove at least partially filled with a multilayer stacked in the thickness direction, the multilayer comprising a first polymeric layer substantially transparent at each wavelength in the predetermined wavelength range and extending to the closed bottom of the first groove, and a second polymeric layer disposed on the first layer.

A light control film comprising alternating linear first and second regions extending along a length (y) of the light control film, each first region disposed between substantially parallel opposing major first and second surfaces of the light control film, each first region comprising a light absorbing portion extending downwardly from a top of the first region proximate the major first surface of the light control film to a middle of the first region, the light absorbing portion defining an air-filled cavity within the first region extending from a bottom surface of the light absorbing portion to a closed bottom of the first region, the closed bottom facing and spaced apart from a major surface of the light control film closest to the closed bottom.