Keypad with light guide layer, keypad assembly and portable...

Details Keypad with light guide layer, keypad assembly and portable... Keypad with light guide layer, keypad assembly and portable...

2006-03-03

2008-08-12

Enad, Elvin (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Indicators

Reexamination Certificate

active

07411142

ABSTRACT:
Disclosed is a keypad which can realize uniform and bright illumination, small power consumption and low manufacturing cost. The keypad includes a light guide layer through which light travels, at least one key button disposed on an upper surface of the light guide layer, a lower elastic layer disposed on a lower surface of the light guide layer, located opposite the upper surface, and at least one reflective pattern formed on the light guide layer and partially reflecting light traveling through the light guide layer toward the key button.

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