THIN EDGE BACKLIGHT WITH LEDS OPTICALLY COUPLED TO THE BACK SURFACE

摘要

A backlight includes a waveguide (102) with a plurality of light emitting diodes (110) positioned in cavities in the back surface in a center region of the waveguide. The back surface of the waveguide can be tapered from the center region to the edges so that the edges are thinner than the center region. Additionally, with the light emitting diodes in the center region of the waveguide, as opposed to along the edges, the bezel (103) may be eliminated or at least minimized in height, e.g., lmm or less. Additionally, multiple waveguides may be used and configured in a "V" shape to minimize the bezel.