| 摘要 |
PURPOSE:To be able to alter a coloring in response to a polarity merely by a pair of electrodes by eliminating an increase in the area of a display section by providing a pair of light emitting diode elements connected in parallel to become a reverse polarity between a pair of electrodes, and a light scattering diode cap for securing a pair of electrodes to seal a pair of light emitting diodes. CONSTITUTION:The anode of a first light emitting diode element 11 is connected to one electrode 21, and the cathode is connected to other electrode 22. The anode of a second light emitting diode element 12 is connected to the electrode 22, and the cathode is connected to the electrode 21. The first and second diodes 11, 12 are sealed in a light scattering diode cap 3. In order to operate it, a voltage is applied between the electrodes 21 and 22. When a positive voltage is applied to the electrode 22 with respect to the electrode 21, the second diode 12 generates a color, and when a negative voltage is, on the contrary, applied, the first diode 11 generates a color. |
