Active-matrix display using ion-beam-processed polyimide film for liquid crystal alignment

Ion-beam bombardment was developed as a substitute for mechanical rubbing of polyimide film as a noncontact liquid crystal (LC) alignment technique. The ion-beam technique was applied to a high-resolution thin-film-transistor-addressed liquid crystal display (TFT/LCD) panel. The results showed that LC alignment was achieved and that the display is capable of showing high-quality images.