Patent ID: 7140751

Claim:
A full-color light source device comprising: a plurality of chip on board (C.O.B.) type light source units each including a red light emitting diode R LED), a green light emitting diode (G LED), and a blue light emitting diode (B LED); a controller; and a plurality of circuit boards each having the R LED, G LED, and B LED formed thereon and comprising three first contacts at one end in electrical connection to three second contacts at the other end of a first adjacent circuit board by three conductors, and three second contacts at the other end in electrical connection to three second contacts at one end of a second adjacent circuit board opposite to the first adjacent circuit board by three conductors; wherein the contacts at one end of the first light source unit are coupled to R, G, and B main wires of the controller, the contacts at the other end of the last light source unit are coupled together prior to coupling to the controller; wherein the controller further comprises a voltage stabilizer, an oscillator, a frequency divider, and driving means.