Optical imaging device

An optical imaging device, comprising:

• a display panel whereon a coordinate detecting area is formed;
• at least one first reflective optical unit installed on an outside corner of the display panel for reflecting light transmitted from an object moving within the coordinate detecting area;
• at least one second reflective optical unit installed outside the display panel for reflecting the light reflected from the at least one first reflective optical unit;
• an image capturing module installed on a side of the display panel for capturing the light reflected from the at least one second reflective optical unit so as to capture at least one image of the object;
• at least one third reflective optical unit disposed on a light path between the at least one second reflective optical unit and the image capturing module, the at least one third reflective optical unit being used for reflecting the light reflected from the at least one second reflective optical unit or for reflecting the light, which is directly transmitted from the object without intervening reflection, to the image capturing module;
• and
• a control module coupled to the image capturing module for receiving the at least one image captured by the image capturing module and for calculating a coordinate value of the object within the coordinate area according to the at least one image.