| 摘要 |
A projector device made up of a digital mirror device (DMD) having several hundreds of thousand of mirror elements is provided which is capable of reducing a difference in chromaticness (tint) caused by performance/characteristic variation between filters or between light sources. The DMD projector is made up of a photosensor being placed in such a position where light reflected from each of the mirror elements in an OFF state is incident, and a correcting unit to receive a video signal and a voltage obtained by a photosensor and to output a corrected video signal to a driving unit, wherein the driving unit controls an inclination of each of mirror elements of a DMD panel according to a corrected video signal and a revolution state of a color wheel and wherein the correcting unit corrects luminance signal for each color of video signals by calculating a relative intensity of light having passed through each filter making up the color wheel using the output of a photosensor occurring when each mirror element of the DMD panel is put in the OFF state. |
