THIN-FILM ALIGNMENT LAYER PROVIDED WITH INTEGRALLY-FORMED SPACING STRUCTURES AND FORMING AN INTERMEDIATE LAYER FOR AN OPTICAL ARTICLE COMPRISING LIQUID CRYSTALS

摘要

The invention relates to a thin film (2) forming an intermediate layer for an optical article comprising liquid crystals (1100), comprising a main body (20) limited by a first main surface (21) and by a second main surface (22) opposed to the first main surface, said first and second main surfaces both comprising a first zone (211, 221) exhibiting alignment properties for aligning liquid crystals along a predetermined alignment direction and a second zone (212; 222) forming spacing structures (23) extending from the main surfaces, wherein the spacing structures are formed integrally with the layer having alignment properties.