| 摘要 |
PURPOSE:To use one display body in common and to obtain small-sized constitution, by turning on light emitting elements of the display body selectively according to a signal from a channel selecting device. CONSTITUTION:The channel selecting device 2 selects a tuner for TV, FM, or AM and outputs channel selection information (k). Then, LEDs 1-1-1-14 which emits different-color light are used to one display body 1 having plural different colors. For example, when the output (h) of the circuit 2 is at ''L'' and outputs (i) and (j) are both at ''H'', a switch circuit 3 turns on and switch circuits 4 and 5 are placed in cutoff states to put the tuner 6 for TV in operation. At this time, a transistor TR11 turns on and TRs 10 and 12 turn off, so an LED which corresponds to an ''L'' output of a driver 25 among the green LEDs 1-6-1-14 turns on. Similarly, the LEDs turn on selectively for the FM tuner 7 and AM tuner 8. |
