| 摘要 |
PURPOSE: A method for fabricating a color filter is provided to simplify the fabrication method of the color filter by forming the color filter by one exposure process. CONSTITUTION: A black matrix(2) having a grid is formed by depositing and patterning a non-transparent metal like a Cr on a glass substrate(20). The black matrix divides a surface of the glass substrate into a number of cell regions where color filters are to be formed, and prevent the color interference between the cell regions. A cholesteric liquid crystal film(24) is formed on the glass substrate, and then is exposed using a mask(26) including the first or the third pattern(26A-26C) having different aperture ratio. Thus, apertures of different size are formed. Therefore, because lights with different energy are irradiated into corresponding regions of the cholesteric liquid crystal film corresponding to the first or the third pattern, color filters of red, green and blue color are formed.
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