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(11) | EP 0 129 894 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Machine control panel |
(57) A machine control panel includes a matrix of pressure sensitive switches (10) and
a matrix of LED's (12) in a substantially coplanar array. An aperture array (18) formed
by a flexible cover sheet (16) having an opaque coating (20) surrounding a matrix
of transparent apertures (18) is positioned on top of the LED and switch array with
corresponding ones of the LED's and apertures in alignment. Unused apertures in the
aperture matrix corresponding to unused LED's are selectively closed by opaque aperture
covers (19). Switch identifying covers in the form of labels (22) are positioned on
top of the aperture array to visually indicate selected ones of the switches (16).
A flexible transparent overlay located on top of the aperture array may be used to
protect the labels and aperture covers white enabling a switch operating pressure
to be transferred to the switches. |