| 摘要 |
A display apparatus compensating the discrepancy of alignment of beams irradiated on one-dimensional diffraction type optical modulator is disclosed. A 1-panel display apparatus including: a plurality of monochromatic light sources irradiating illumination light beams having different wavelengths; an optical modulator receiving sequentially the illumination light beams and modulating the illumination light beams according to a control signal; a scanner scanning the modulated illumination light beams sequentially on a display screen; and a control unit receiving an image signal and outputting a control signal for controlling the monochromatic light source, the optical modulator and the scanner in correspondence to the image signal, whereas the control unit controls an on/off timing of the monochromatic light source and an image data timing of the optical modulator in such a manner that a position of the modulated illumination light beam is equal to a position of a monochromatic image scanned on the display screen.
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