An all-polymer thin-film scanning optical filter for 3D-image displays

Built a transparent thin-film scanning optical filter, which can be attached to displays to show 3D-images. The scanning motion provides more quality images depending on the viewpoints. Water droplets are put in the filter as microlenses which is driven electrostatically. All the structure of the filter, including conductive elements, is made of transparent polymer films. The electrodes to drive the microlenses are conductive polymer Baytron P/sup /spl reg// patterned with a new technique using selectivity of hydrophobic and hydrophilic regions on the surface. Since the scanning filter consists of multi layers, new functions can be easily added by attaching another layer on top or bottom of the filter. In this paper, an LCD (liquid crystal display) was attached to the bottom as a light source layer.