Patent ID: 7959306

Claim:
A displaying method of a digital light processing projector, comprising the steps of: providing a light modulation device, the light modulation device comprising: a driver printed circuit board; and a digital micromirror device disposed on the driver printed circuit board, comprising a plurality of micromirrors with a predetermined light incident direction, a position of each of the micromirrors being one of a first stable state and a second stable state, wherein each of the micromirrors in the first stable state reflects a light ray being incident thereon along the predetermined light incident direction to a projection lens, and each of the micromirrors in the second stable state reflects the light ray being incident thereon along the predetermined light incident direction to a direction outside the projection lens; and providing an illumination light beam, the illumination light beam being incident on the digital micromirror device along an operating direction different from the predetermined light incident direction, wherein each of the micromirrors in the second stable state reflects a light ray of the illumination light beam being incident thereon along the operating direction to the projection lens for projecting an image, and each of the micromirrors in the first stable state reflects the light ray of the illumination light beam being incident thereon along the operating direction to a direction outside the projection lens.