| 摘要 |
A light emitting keypad with a light guide film is provided to obtain a uniform light emitting surface such as a surface light source by forming a predetermined pattern on one surface of the keypad. A light emitting keypad with a light guide film includes a key top(20), a light guide film(10), a light source(12), and a board(30). Plural bumps are formed at predetermined positions on a lower surface of the key top. The light guide film is arranged at a lower portion of the key top. The light source is arranged at one side of the light guide film. The board is arranged at a lower portion of the light guide film and includes a dome switch, which corresponds to the bumps. A reflective layer is formed at a rear surface of the light guide film, which is made of PC(PolyCarbonate) or PET(PolyEthylene Terephthalate). A predetermined pattern is formed on at least one of front and rear surfaces of the light guide film, such that light is focused on a predetermined region of the keypad.
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