Keyboard, lighting module for keyboard and electronic apparatus

Details Keyboard, lighting module for keyboard and electronic apparatus Keyboard, lighting module for keyboard and electronic apparatus

2009-10-22

2010-11-30

Colilla, Daniel J (Department: 2854)

Typewriting machines

Key-board or key lever-actuating mechanism

Key-cap or key-stem structure

C400S490000, C400S472000

Reexamination Certificate

active

07841791

ABSTRACT:
According to one embodiment, a keyboard includes keytops supported on a substrate and a membrane switch placed between the keytops and the substrate. The membrane switch has an electrically insulating membrane sheet on which a plurality of contacts operated by the keytops are formed. A light source is mounted on the membrane sheet. A conductor pattern configured to supply an electric current to the light source is formed on the membrane sheet. Further, a lightguide plate configured to lead light emitted by the light source to the keytops is stacked on the membrane sheet.

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