PURPOSE: To heighten economy by miniaturizing a color liquid crystal display board to use.

CONSTITUTION: Display information by each color is included on a dot matrix type light transmissive color liquid crystal display board 30, and the each color display information by this color liquid crystal display board 30 is divided into display information for each color and displayed by reflecting specific wavelength and using a plural number of wavelength selection reflectors 25-27 transmit wavelength except for the specific wavelength. Consequently, as it is possible to include a plural number of information in various colors on the color liquid crystal display board 30, even if with a small size color liquid crystal display board, it is possible to display a large amount of display information, and accordingly, economy of a color liquid crystal display board to use is improved.