US Patent 9523807 Device comprising a film-based lightguide and component with angled teeth

A device disclosed herein includes a component having a frame and an array of protruding teeth extending from the frame. Each tooth of the array of protruding teeth has an angled edge. The device also includes a lightguide formed from a film. The lightguide includes an array of strips extending from an area of the film. The array of strips is positioned adjacent the array of protruding teeth, and the component at least partially restrains the film when each strip of the array of strips is folded across an angled edge of a corresponding tooth of the array of protruding teeth.