| 摘要 |
<p>Provided is a keypad assembly of electronic equipment. The keypad assembly includes a plurality of light emitting units, a light guide plate through which light emitted from the light emitting units proceeds, a plurality of key buttons formed on a top surface of the light guide plate and including numeral and character key plates, a plurality of reflection patterns formed on the light guide plate so as to reflects light toward the key buttons, a plurality of protrusions formed under the reflection patterns, a switch substrate including a plurality of switches corresponding to the protrusions, a first optical filter layer formed under the numeral key plates of the key buttons so as to convert the light emitted from the light emitting units into light of various colors according to wavelengths of the light emitted from the light emitting units, and a second optical filter layer formed under the character key plates of the key buttons so as to block violet wavelength light and transmit light having other wavelengths.
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