Patent ID: 8917230
Filing Date: 2014-12-23
Classification: H05B

Abstract:
1. A backlight assembly comprising: a plurality of light source strings which receive a driving voltage to generate a light; a driving circuit comprising a channel terminal commonly connected to output terminals of the plurality of light source strings and which receives a feedback voltage through the channel terminal to control the driving voltage according to the feedback voltage; and a current detection circuit connected to the output terminals of the plurality of light source strings to receive currents from the plurality of light source strings and which turns off the driving circuit when at least one of the received currents is larger than a predetermined reference current, wherein the current detection circuit comprises a plurality of switching devices, wherein gate terminals of the plurality of switching devices are respectively and directly connected to the plurality of light source strings, wherein each switching device comprises a second electrode to which a ground voltage is applied, and a third electrode connected to the enable terminal of the driving circuit, and wherein an enable voltage is applied to the third electrode via an input terminal.