Patent ID: 8704802

Claim:
A touch display device comprising: a device housing; a display module located within the device housing, the device module having a display region and a peripheral region surrounding the display region; an optical touch module configured on the display module, the optical touch module comprising: a light guide element having a top surface, the light guide element comprising a light guide portion and an outer frame portion, the light guide portion being located on the display region, the outer frame portion extending from an edge of the light guide portion and being connected to the device housing; wherein a thickness of the light guide portion is greater than a thickness of the outer frame portion, and the outer frame portion extends beyond the peripheral region and extends above the device housing to connect the device housing; a light source supplying light to the light guide portion, the outer frame portion covering the light source; and a photo sensor receiving the light from the light guide portion, the outer frame portion covering the photo sensor.