| 摘要 |
This invention provides a switch panel device capable of changing indicia for identifying switch elements in a short time. The switch panel device comprises a transparent frame holding switch elements such that the operating ends of the switch elements project forwardly from the frame, a diffusion sheet applied to the front surface of the frame, and an LCD projector for projecting images of characters identifying the respective switch elements below and in juxtaposition to the corresponding operating ends of the switch elements.
|
