| 摘要 |
<p>PURPOSE: A light emitting diode driving device is provided to equally control a current applied to a light emitting diode by comprising a current mirror as a PNP bipolar junction transistor or PMOS transistor. CONSTITUTION: A plurality of light emitting diodes are serially connected to a first light emitting diode group(1120). A first current provider(1110) provides a current to a first light emitting diode group. A plurality of light emitting diodes are serially connected to a second light emitting diode group(1220). A second current provider(1210) provides a current to the second light emitting diode group. A third current provider(1310) provides a current to a third light emitting diode group(1320).</p> |
