LIGHT DIFFUSION SHEET MASTER DISC, LIGHT DIFFUSION SHEET MOLDING STAMPER, AND MANUFACTURING METHOD OF LIGHT DIFFUSION SHEET AND LIGHT DIFFUSION SHEET MASTER DISC

摘要

PROBLEM TO BE SOLVED: To provide a light diffusion sheet master disc capable of easily forming fine and even irregularities, a light diffusion sheet molding stamper, and a manufacturing method of the light diffusion sheet.;SOLUTION: A photosensitive resin layer 14 is formed by coating a positive-type photoresist in which fine particles 12 are dispersed onto a glass substrate 16, and the layer 14 is exposed to create a photosensitive layer 14b and a non-photosensitive layer 14c. The layer 14b is removed, the fine irregularities are formed on the surface 14e of the layer 14 by the protrusion and/or dropout of the fine particles 12 to obtain the light diffusion sheet master disc. The non-photosensitive layer formed on the surface by performing exposure from the back side may be removed by using a negative-type photoresist. In addition, the light diffusion sheet stamper can be manufactured from the light diffusion sheet master disc manufactured in the process, and the light diffusion sheet can be further manufactured from the light diffusion sheet stamper.;COPYRIGHT: (C)2005,JPO&NCIPI