| 摘要 |
A touch-sensitive panel is mounted in front of a display having a display area. The panel covers an area substantially larger than the display area. A first notional portion of the panel covers the display area and a second notional portion covers an additional area peripheral to the display area. Touch symbols may be applied directly to the first and/or second portions of the panel. However, they are preferably applied to a sheet mounted adjacent to the panel. A first portion of the sheet corresponds to the display area, and a second portion corresponds to the second portion of the panel. In most cases the touch symbols are applied to the second portion of the sheet, although they may in some cases be applied to the first portion of the sheet. The symbols can be configured on the sheet to define a keyboard having a plurality of keys adapted to perform a generalized input function. The display, the panel and the sheet can be sealed within a unitary, waterproof enclosure.
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