METHOD OF MANUFACTURING SUBSTRATE HAVING CONCAVE PARTS, SUBSTRATE HAVING CONCAVE PARTS, SUBSTRATE HAVING CONCAVE PARTS FOR MICROLENSES, MICROLENS SUBSTRATE, TRANSMISSION SCREEN, AND REAR PROJECTOR

摘要

PURPOSE: A method of manufacturing a substrate having concave parts, a substrate having concave parts, a substrate having concave parts for microlenses, a microlens substrate, a transmission screen, and a rear projector are provided to enhance the productivity by improving a manufacturing process. CONSTITUTION: A method of manufacturing a substrate having a plurality of concave parts includes a mask forming process, an initial hole forming process, and a concave part forming process. The mask forming process is performed to a mask(6) on a substrate(5). The initial hole forming process is performed to form a plurality of initial holes(61) on the mask by using a physical method. A concave part forming process is performed to form the plurality of concave parts in the substrate by subjecting the mask with the plurality of initial holes to an etching process.