公开(公告)号：US20040125071A1

公开(公告)日：2004-07-01

申请号：US10606832

申请日：2003-06-27

Applicant: LG.Philips LCD Co., Ltd.

Inventor： Young Mau Kim ,  Jung Gun Lee

IPC: G09G003/36

CPC classification number: H05B41/245 ,  H05B37/03 ,  H05B41/2851

Abstract: An inverter device for a liquid crystal display includes a transformer for receiving an inverter drive voltage, converting the received drive voltage into an AC lamp drive voltage and supplying the AC lamp drive voltage to a high path of a backlight lamp, a low path switching part selectively connecting a low path of the backlight lamp with a ground voltage source in response to an external inverter ON/OFF signal, and a shutdown circuit for receiving a voltage input through the low path of the backlight lamp to monitor for a malfunction of the backlight lamp in response to an external shutdown ON/OFF signal.

Abstract translation: 一种用于液晶显示器的逆变器装置，包括用于接收逆变器驱动电压的变压器，将接收到的驱动电压转换为AC灯驱动电压，并将AC灯驱动电压提供给背光灯的高路径;低路径切换部 响应于外部逆变器ON / OFF信号，选择性地连接背光灯的低路径与地电压源，以及用于接收通过背光灯的低路径输入的电压以关闭背光源的故障的关闭电路 灯响应外部关闭ON / OFF信号。