Electricity: circuit makers and breakers – Electric switch details – Indicators
Reexamination Certificate
2007-07-18
2010-12-07
Friedhofer, Michael A (Department: 2833)
Electricity: circuit makers and breakers
Electric switch details
Indicators
C200S310000, C200S313000
Reexamination Certificate
active
07847204
ABSTRACT:
A multicolor transparent computer keyboard for operating a computer in a dark environment includes transparent keypads each on a top including spaced transparent color layers occupying four corners and being different in color from each other, an opaque layer on the color layers and having portions overlapped with the color layers being removed, and characters printed on the opaque layer; bridges pivotably interconnecting the key caps and an underlying transparent frame plate; a PCB under the frame plate; and a luminescence panel under the PCB and including cells each below the key cap, each cell including regions of different colors and adapted to electrically activate to upward emit light which is adapted to show multi-color when passing a gap between the color layers and show a backlit color when passing one of the color layers. The backlit color of each color layer is different from that of another color layer.
REFERENCES:
patent: 5950809 (1999-09-01), Andre
patent: 6608271 (2003-08-01), Duarte
patent: 6761462 (2004-07-01), Yoshida
patent: 7070290 (2006-07-01), Lee
patent: 7271360 (2007-09-01), Kobayashi
patent: 7331727 (2008-02-01), Salman et al.
patent: 7333031 (2008-02-01), Bantner
patent: 7335844 (2008-02-01), Lee et al.
patent: 7369064 (2008-05-01), Yeh
patent: 7503683 (2009-03-01), Liu
patent: 7523862 (2009-04-01), Tracy et al.
patent: 7525056 (2009-04-01), Chiba et al.
patent: 7686465 (2010-03-01), Okayasu
Friedhofer Michael A
Sunrex Technology Corp.
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