| 摘要 |
The invention relates to an illuminated display device (1) for an electrical control element (2), wherein the display device (1) has a display region (5) facing an operator (3) and is designed to display various symbols (4) in said display region (5) and additionally has a plurality of symbol masks (6a, 6b, 6c) and at least one light source (7a, 7b, 7c), wherein each displayable symbol (4) is assigned a symbol mask (6a, 6b, 6c) and a light source (7a, 7b, 7c), wherein each symbol mask (6a, 6b, 6c) has a projection region (8a, 8b, 8c) which is designed to project light striking said region into the display region (5) as the symbol (4) to be displayed, wherein light from the light source (7a, 7b, 7c) assigned to the symbol (4) can be coupled laterally into the symbol mask (6a, 6b, 6c) assigned to the symbol (4) to be displayed, in order to display the symbol (4) to be displayed, and can be conducted within the symbol mask (6a, 6b, 6c) to the projection region (8a, 8b, 8c) of said symbol mask (6a, 6b, 6c), wherein the symbol mask (6a, 6b, 6c) first acts as a light channel and light coupled laterally into the symbol mask (6a, 6b, 6c) is reflected within the symbol mask (6a, 6b, 6c) until the light strikes the projection region (8a, 8b, 8c) of the symbol mask (6a, 6b, 6c) in order to be projected from there by means of said projection region (8a, 8b, 8c), in order to display the symbol (4) in the display region (5). |
