Patent ID: 8624876

Claim:
A display device having an optical sensing frame, comprising: a display panel; at least one waveguide unit arranged at two adjacent sides of the display panel, the waveguide unit having a stacked structure, the stacked structure including a light-emitting layer, and a light-receiving layer to receive reflected light; a retroreflector unit including a plurality of retroreflectors arranged at opposing sides of the waveguide unit; and a case enclosing the display panel, the waveguide unit, and the plurality of retroreflectors, wherein the case includes a case top portion on the display panel, each of the waveguide unit and the retroreflector unit disposed between the case top portion and the display panel and overlapping a portion of the display panel, wherein the case top portion shields the waveguide unit and the retroreflector unit; and wherein the light-emitting layer includes a first plurality of optical fibers, each of the first plurality of optical fibers being connected to a first type of optical lens, and the light-receiving layer includes a second plurality of optical fibers, each of the second plurality of optical fibers being connected to a second type of optical lens, and the first type of optical lens is a light focusing optical lens, and the second type of optical lens is a narrow viewing angle optical lens.