Projection device and information processing method thereof

A projecting device comprising:

• a display image generation unit for generating a plurality of frames of continuous images to be displayed according to a plurality of groups of image frames inputted;
• a light source unit for receiving the plurality of frames of continuous images to be displayed, generated by the display image generation unit and forming a corresponding set of light rays sequentially according to the frames of the images to be displayed;
• a light path transformation unit having N kinds of optical states, in a first optical state, the light ray irradiated to the light path transformation unit is transformed to a first direction;
• in an Nth optical state, the light ray irradiated to the light path transformation unit is transformed to an Nth direction;
• N being a natural number greater than 1;
• a projecting unit for projecting the light rays inputted to it to a first to Nth projection regions;
• and a control unit for controlling the light source unit so that the images to be displayed are switched in a predetermined frequency, and controlling the light path transformation unit so that the N kinds of optical states are switched in the predetermined frequency, wherein with respect to a first group of image frames to a Nth group of image frames inputted, the display image generation unit generates the plurality of frames of the continuous images to be displayed in order of a first frame in the first group, and until the first frame in the Nth group, a second frame in the first group, and until the second frame in the Nth group, and a last frame in the first group, and until the last frame in the Nth group, and N projection regions are separated from each other, wherein the light path transformation unit comprises:
• a beam splitter, the outer surface of which is attached with a half transparent and half reflecting film so that a portion of the light rays inputted transmits and the other portion of the light rays is reflected, and the transmitting light rays and the reflected light rays both correspond to a frame of the whole image;
• X first switch units, every one of which has an on state and an off state, in the on state, the light rays inputted pass through completely, but in the off state, the light rays inputted are reflected completely;
• Y second switch units, every one of which has an on state and an off state, in the on state, the light rays inputted pass through completely, but in the off state, the light rays inputted are blocked completely;
• wherein through controlling the on state and the off state of the X first switch units and the Y second switch units by the control unit, the light rays irradiated from the light source unit are finally projected to the first to the Nth projection regions respectively, wherein X and Y are both natural numbers, and 2X+Y=N.