| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a keypad assembly providing even and sufficient illumination, reducing power consumption, and having simple constitution. <P>SOLUTION: Disclosed is a keypad assembly including a light guide panel in which light propagates, at least one light extracting pattern provided on the light guide panel so that light propagating inside the light guide panel is directed out of the light guide panel, a switch board having at least one switch; and at least one light source for coupling light to the inside of the light guide panel, wherein the light guide panel has a thickness of 0.03 to 0.6 mm. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
