Patent ID: 8569967

Claim:
A LED backlight module, comprising: a substrate; a heat-dissipating plate disposed on a first surface of said substrate for dissipating heat; a first LED string disposed on a second surface of said substrate for emitting light, wherein said first LED string comprises plural LEDs electrically connected with each other in series, and first LED string further comprises a first positive driving terminal, a first negative driving terminal and a first connecting terminal, and said first connecting terminal is arranged between said first positive driving terminal and said first negative driving terminal of said first LED string; and a backlight driving circuit comprising a first positive output terminal, a first negative output terminal and a zero voltage terminal, wherein said first positive output terminal, said first negative output terminal and said zero voltage terminal are respectively connected with said first positive driving terminal, said first negative driving terminal and said heat-dissipating plate, so that a first positive driving voltage and a first negative driving voltage are generated by said backlight driving circuit to drive illumination of said first LED string, wherein a first number of LEDs of said first LED string are electrically connected between said first connecting terminal and said first positive driving terminal, and a second number of LEDs of said first LED string are electrically connected between said first connecting terminal and said first negative driving terminal.