POWER-SAVING TYPE WIRELESS TERMINAL USING AFTER-IMAGE EFFECT, PARTICULARLY IN CONCERNED WITH MINIMIZING POWER CONSUMPTION OF LIGHT EMITTING DIODES

摘要

PURPOSE: A power-saving type wireless terminal using after-image effect is provided to minimize power consumption of light emitting diodes by making a user feel that the light emitting diodes are lighted at the same time, thereby extending use time of the wireless terminal. CONSTITUTION: A control unit(14) outputs a predetermined clock frequency for turning on and off a plurality of light emitting diodes at regular intervals. A driving IC(Integrated Chip)(12a) has output ends connected with one side terminals of the light emitting diodes, and a power source output end connected with the other side terminals of the light emitting diodes. The driving IC(12a) sequentially outputs enable signals through the output ends according to the clock frequency and sequentially turns on and off the light emitting diodes.