New Precise Fabrication Technology for Lenticular Lens Sheet with Black Stripe Patterns by Using Photo-Sensitive Material with Surface Modifier

Abstract

We have developed a new precise fabrication technology of a lenticular lens sheet with black stripe patterns for a rear-projection television. The black stripe patterns have to be accurately aligned to cylindrical lenses on the lenticular lens sheet and be able to absorb ambient light. Our proposed technology utilized a photo-sensitive material with a surface modifier which controls surface free energy for surface modification. Using this material, we could obtain two patterned areas which had different surface free energies. Furthermore, fabrication of black stripe patterns on the lenticular lens sheet was carried out by a self-alignment method. This lenticular lens sheet with black stripe patterns had similar optical properties compared with a conventional one.