| 摘要 |
The present invention provides a light emission device comprising: a light source unit including a first LED array having a plurality of first LEDs driven by a driving voltage and serially connected to each other and a second LED array having a plurality of second LEDs serially connected to each other; a connection control unit determining a connection structure between the first and the second LED array to be serial, parallel or serial/parallel based on the maximum value of the driving voltage; and a driving control unit controlling the number of LEDs driven in the light source unit according to the size of the driving voltage, wherein each of the first and the second LED array is connected between a plurality of first nodes and a plurality of second nodes. |
