LIGHT EMITTING KEYPAD COMPRISING LIGHTGUIDE FILM

摘要

A light-emitting keypad having a waveguide film is provided to minimize the damage of a waveguide film by forming upper protrusions, not lower protrusions, at a rear layer and to scheme uniform surface emission and increase the light-emitting luminance of a specific region by forming dot patterns at the waveguide film. A light-emitting keypad is comprised of a key plate(10), a rear layer(20), and a waveguide film(30). A plurality of keys are formed at the key plate(10). The rear layer(20), located at the lower part of the key plate(10), has a plurality of upper protrusions(21) corresponding to all or part of the keys of the key plate(10). The waveguide film(30), formed below the rear layer(20), guides the light projected from a light source and makes surface emission. Dot patterns(31) to increase the brightness of a specific region of the upper or rear surface of the waveguide are formed at the waveguide film(30). Light-radiating patterns are formed at a specific region of the upper surface of the rear layer(20) and the upper surface of each of the upper protrusions(21).