To provide a color filter for a semitransmission type liquid crystal display device, canceling color difference in reflection display and transmission display and capable of dealing with both types of display without increasing manufacturing stages and to provide the manufacturing method therefor.

Cross sectional shape in the short side direction of one pixel of the color filter 16 is a convex lens like shape having the maximum thickness 1.5-2.5 times as thick as average thickness and the part in the vicinity of the central part is used as a transmission area and the part except the part in the vicinity of the central part is used as a reflection area. A pattern 22 is formed by using photosensitive color resist having thermally reflowing properties and thermally reflowed to be formed in the convex lens like shape.