Patent ID: 8308317

Claim:
A surface light source structure, applied in a backlight module, comprising: a circuit board; a first light emitting diode (LED) array, assembled on the circuit board and having a plurality of LED rows comprising at least a first row and a second row, each of the LED rows having a plurality of LED units, each LED unit comprises an LED package and includes at least one LED chip connected in series to define at least one serially connected series of same-color LED chips, and the LED rows of the first LED array being connected between a first positive electrode and a first negative electrode, wherein the first row and the second row of the first LED array are connected in parallel; and a second LED array, assembled on the circuit board and having a plurality of LED rows comprising at least a first row and a second row, each of the LED rows having a plurality of LED units, each LED unit comprises an LED package and includes at least one LED chip connected in series to define at least one serially connected series of same-color LED chips, and the LED rows of the second LED array being connected between a second positive electrode and a second negative electrode, wherein the first row and the second row of the first LED array are connected in parallel, wherein the LED rows of the second LED array are alternately disposed with the LED rows of the first LED array, and positive-to-negative directions of the LED units of the first LED array and positive-to-negative directions of the LED units of the second LED array being arranged in opposite directions; wherein each row of the first LED array is respectively separated from each row of the second LED array.