Patent ID: 8294692

Claim:
An optical touch sensing apparatus applied to a panel, the optical touch sensing apparatus comprising: a frame for covering the panel, the frame comprising a first position and a second position; a first image capturing module, located on the first position, for capturing a first image corresponding to a touch point on the panel; a second image capturing module, located on the second position, for capturing a second image corresponding to the touch point on the panel; and a processing module coupled to the first image capturing module and the second image capturing module for determining a coordinate of the touch point according to the first image and the second image, wherein the frame is formed by a first metal member, a second metal member, a third metal member, and a fourth metal member, the first metal member, the second metal member, the third metal member and the fourth metal member are located on the upper side, lower side, left side and right side of the frame respectively, and a left side 8-shaped hole is located upon the third metal member, the left side 8-shaped hole comprises a first left side hole and a second left side hole, a right side 8-shaped hole is located upon the fourth metal member, the right side 8-shaped hole comprises a first right side hole and a second right side hole.