Patent ID: 8115400
Filing Date: 2012-02-14
Classification: H05B

Abstract:
1. A backlight module, comprising: a first lamp having a first terminal and a second terminal; a first voltage source for outputting a first voltage signal electrically coupled to the first terminal of the first lamp; a second lamp having a first terminal and a second terminal; a second voltage source for outputting a second voltage signal electrically coupled to the first terminal of the second lamp; a third voltage source electrically coupled to the second terminal of the first lamp; a fourth voltage source electrically coupled to the second terminal of the second lamp; a first external electrode having a first terminal and a second terminal, and the first terminal of the first external electrode electrically coupled to the second voltage source; and a second external electrode having a first terminal and a second terminal, and the first terminal of the second external electrode electrically coupled to the first voltage source, wherein the first voltage signal and the second voltage signal are inverted.