Color filter comprising unit patterns with varied densities and liquid crystal display device using the color filter, and their manufacturing methods

t r t r An object of the invention is to provide a color filter and a liquid crystal display device using the filter, which can obtain well-balanced color purities within a pixel. A color filter for coloring a first light ray L having a unidirectional optical path and a second light ray L having a bidirectional optical path for each pixel. The color filter includes a first area portion in which the first light ray L is caused to be transmitted and a second area portion in which the second light ray L is caused to be transmitted, for each pixel. The first area portion and the second area portion respectively have structures by which different coloring effects are exerted if light rays having the same optical path and the same property pass through them.