Head mounted display and imaging method thereof

A head mounted display (HMD), comprising:

• A first beam splitter;
• a first pico projector;
• an application processor for controlling the first pico projector to project a first beam;
• a first eye image sensor for capturing a first eye image;
• a first adjustment apparatus;
• an application specific integrated circuit (ASIC) for performing a perspective correction on the first eye image to generate a first frontal eye image, wherein the ASIC obtains a first beam location of the first beam and obtains a first pupil location according to the first frontal eye image and controls the first adjustment apparatus to adjust the first beam splitter according to the first beam location and the first pupil location;
• an eyeglass frame for carrying the first beam splitter, the first adjustment apparatus, the first pico projector, the application processor, the first eye image sensor and the ASIC;
• a second beam splitter;
• a second adjustment apparatus for adjusting the second beam splitter;
• a second pico projector, wherein the application processor controls the second pico projector to project a second beam;
• and
• a second eye image sensor for capturing a second eye image;
• wherein when the first beam location matches the first pupil location and the second beam location matches the second pupil location, the ASIC requests the application processor to send an inquiring message to inquire whether a displayed image has a quality 3D effect, whenever the displayed image does not have the quality 3D effect, the ASIC controls the first adjustment apparatus to adjust the first beam splitter and controls the second adjustment apparatus to adjust the second beam splitter, and whenever the displayed image does have the quality 3D effect, the ASIC determines a first corrected offset value and a second corrected offset value according to the adjusted first beam splitter and the second beam splitter, and records the first corrected offset value and the second corrected offset value.