| 摘要 |
<p>The present invention provides a light emitting key-top having stealth effect outlook. Particularly, the printing of background colours black, predetermined pattern printing blue and predetermined pattern printing red are all printed on the back side of the key-top. The light-up of coloured print patterns from the same colour light source is to distinguish the current operation mode on the communication devices or personal entertainment devices. Upon introduction of stealth key-top at zero mode or 'off' mode, the key-top will be black colour or background colour, when the red colour light source is switched on, only the red colour printed pattern will light-up and/or if blue colour light source is switch on, only the blue colour printed pattern is light up as shown in.</p> |
