KEY SHEET, KEY UNIT HAVING THEREOF, AND METHOD OF MANUFACTURING KEYSHEET
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United States of America Patent
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N/A
Issued Date -
Dec 31, 2009
app pub date -
Aug 6, 2007
filing date -
Aug 7, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In order to provide different colors of illumination light to keytops in different areas, there is provided a key sheet 8 having a plurality of pad portions 10, 10, . . . provided on a key base 6 made of a transparent or translucent resin and a plurality of keytops 2 provided on the pad portions 10, 10, . . . , wherein the key base 6 is divided into a plurality of areas 4.sub.1, 4.sub.2, and 4.sub.3 which includes one or a plurality of pad portions 10, 10, . . . ; light-blocking portions 18 are provided to boundary regions between the adjacent areas 4, 4 of the key base 6; at least one illumination-light emitting means arrangement portion 14 is provided so as to correspond to each of the areas 4.sub.1, 4.sub.2, and 4.sub.3; and reflecting means 20 which direct light emitted from illumination-light emitting means toward keytop-formed side are entirely or partially arranged in each of the areas 4.sub.1, 4.sub.2, and 4.sub.3 of the key base 6.
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Cited Art Landscape
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