METHOD OF MANUFACTURING GRAYSCALE MASK, METHOD OF MANUFACTURING MOTHER GRAYSCALE MASK, METHOD OF MANUFACTURING MOTHER GRAYSCALE MASK WITH LENS AND MOTHER GRAYSCALE MASK

摘要

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

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

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