Patent ID: 8585227

Claim:
A portable electronic device comprising: a main body having an upper surface that is provided with a keyboard; and a cover body connected pivotably to a lateral side of said main body so as to be operable to be disposed in a covering position, where said cover body covers said upper surface of said main body, and in an upright position, where said cover body uncovers said main body and is positioned upright at the lateral side of said main body, said cover body including a back cover, a display panel that is mounted to said back cover, a front frame that is disposed on said display panel opposite to said back cover, that surrounds a periphery edge of said display panel, and that has a lower portion formed with a light-emitting hole, said light-emitting hole facing said keyboard when said cover body is disposed in the upright position, and a backlight module that is disposed between said display panel and said back cover, and that includes a lighting unit including a primary light guiding unit, and a light source that is disposed at one side of said primary light guiding unit, and that emits light toward said primary light guiding unit to be guided by said primary light guiding unit for projecting toward said display panel, and an auxiliary light guiding unit including a light collecting portion that is disposed between said lighting unit and said back cover for collecting light leaking from said lighting unit, and a light guiding portion that extends generally transversely from one end of said light collecting portion to said light-emitting hole of said front frame for guiding the light collected by said light collecting portion to emit through said light-emitting hole so as to illuminate said keyboard.