| 摘要 |
The invention relates to a user control interface comprising a plurality of illuminated symbols such as letters, digits and similar characters being arranged for facilitating input commands from a user and being disposed at a defined area forming part of a top layer facing a user during operation. The user control interface according to the invention comprises a support structure comprising at least one light source emitting light generally in the ultraviolet range in a direction towards said top layer, wherein said symbols are of more than one colour, each colour being provided by means of fluorescent material arranged in said top layer in a design corresponding to said symbols.
|
