We have found that liquid crystals can be aligned on a polyimide surface exposed to a low energy and neutral Argon ion beam. The energy of the incident ions were varied between 75 and 500 eV, the integrated current density from 100 .mu.A/cm.sup.2 to 500 mA/cm.sup.2, and the angle of incidence...http://www.google.com/patents/US5770826?utm_source=gb-gplus-sharePatent US5770826 - Atomic beam alignment of liquid crystals
