METHOD OF MANUFACTURING GRAY SCALE MASK, METHOD OF MANUFACTURING MOTHER GRAY SCALE MASK, METHOD OF MANUFACTURING MOTHER GRAY SCALE MASK WITH LENS AND MOTHER GRAY SCALE MASK

摘要

PROBLEM TO BE SOLVED: To provide a microlens array and a liquid crystal display apparatus which facilitate optical axis alignment of a microlens array and have excellent productivity.

SOLUTION: A manufacturing method of a gray scale mask having a variable density pattern corresponding to change of optical transmissivity has a step of forming a dry plate 430 by applying a photoemulsion onto a transparent substrate and a step of irradiating the dry plate 430 with laser beams which are subjected to a plurality of gradations of intensity modulation corresponding to the variable density pattern.

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