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US 2006/0132445 A1Published application
Input device
AssigneeOSRAM Opto Semiconductors GmbH
InventorJosef Huttner
Life of this patent
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Abstract
An input device having a first character of a first color, a second character of a second color and an illumination device which produces light of the first color and/or of the second color such that, depending on the illumination of the input device, in a first operating state only the first character of the first color, in a second operating state only the second character of the second color, or in a third operating state both characters appear.
Claims20
An input device comprising:
- a first character of a first color;
- a second character of a second color;
- and
- an illumination device which produces light of the first color and/or of the second color such that, depending on the illumination of the input device, in a first operating state only the first character of the first color appears and in a second operating state only the second character of the second color appears.
1 more element
Dependencies are inferred from the claim text.