| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable display structure capable of improving display performance. SOLUTION: The variable display structure for performing the first display and the second display by switchably projecting beams from a first light source 3 and a second light source 4 whose wavelengths are different from each other to a translucent sheet 10e is provided with a notch filter 9 which does not transmit the wavelength of the first light source 3 and the wavelength of the second light source 4 only in a wavelength band of a blue printing portion 101 for transmitting the wavelength of the second light source 4 and a wavelength band of a green printing portion 102 for transmitting the wavelength of the first light source 3. COPYRIGHT: (C)2009,JPO&INPIT
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