Patent ID: 8542194
Filing Date: 2013-09-24
Classification: G06F,H04M

Abstract:
1. A keypad assembly, comprising: a plurality of side-firing Light Emitting Diodes (LEDs) mounted to a flex keypad circuit and protruding through a plurality of keypad substrate layers mounted to the flex keypad circuit, wherein the plurality of side-firing LEDs form side-by-side obtuse angled pairs of LEDs; a light-guide film disposed over the plurality of keypad substrate layers, the lighguide film comprising cut-outs through which the plurality of side-firing LEDS partially protrude, the light-guide film further comprising light dispersion areas disposed thereon; and a cover sealing the plurality of side-firing LEDs to the light-guide film such that the light-guide film seals the plurality of keypad substrate layers, the plurality of side-firing LEDs dispersing light through the light-guide film to the light dispersion areas to illuminate a keypad.