Patent ID: 7978413

Claim:
A method for manufacturing a micro-lens array substrate, comprising: forming a resist layer that has a plurality of consecutive lens-shaped concave portions on a surface of a substrate and a tapered portion of the resist layer corresponding to a peripheral portion of the plurality of consecutive lens-shaped concave portions is formed in a tapered shape inclined toward the surface of the substrate from the peripheral portion of the plurality of consecutive lens-shaped concave portions; dry-etching said resist layer to transfer said plurality of consecutive lens-shaped concave portions and said tapered portion into the surface of said substrate; forming a micro-lens array by injecting a resin whose refractive index is different from that of said substrate into the plurality of consecutive lens-shaped concave portions and said tapered portion in the surface of said substrate; and forming a cover glass member on the substrate with the resin interposed between the cover glass member and the substrate, wherein a viscosity of the resin is 1 cp or more and 100 cp or less.