Keyboard structure

Details Keyboard structure Keyboard structure

2007-07-03

2007-07-03

Patel, Nitin I. (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

C200S00500A

Reexamination Certificate

active

10786341

ABSTRACT:
A keyboard structure. The keyboard structure includes a base plate, a light guide member, a membrane circuit board, a key assembly and a light-emitting element. The light guide member is disposed on the base plate. The membrane circuit board is disposed on the light guide member. The key assembly is disposed on the membrane circuit board, with a key cap and a resilient element between the key cap and the membrane circuit board. The light-emitting element is adjacent to the light guide member and is disposed under the membrane circuit board. Light from the light-emitting element enters the resilient element and key cap via the light guide member.

REFERENCES:
patent: 6743993 (2004-06-01), Clark et al.
patent: 2003/0103359 (2003-06-01), Chiang et al.

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