公开(公告)号：KR1020030063782A

公开(公告)日：2003-07-31

申请号：KR1020020004081

申请日：2002-01-24

Applicant: 대한민국(전남대학교총장)

Inventor： 양승학 ,  임영철 ,  권기현 ,  한재현

IPC: G02F1/133

Abstract: PURPOSE: An apparatus for lighting multi-lamps for a back light of a liquid crystal display is provided to reduce power consumption and the size of the back light by lighting the multi-lamps with one lighting apparatus. CONSTITUTION: A plurality of switching elements(10,20,30,40) is operated by gate signals(S1-S4) for converting direct current voltage into pulse wave alternating current voltage. A serial resonance circuit made up of a parallel capacitor(50) and a transformer(60) converts the pulse wave alternating current voltage into sine wave alternating current voltage according to a resonance operation. Serial capacitors(80,81) are driven by the sine wave alternating current voltage from the serial resonance element for lighting a plurality of lamps(90,91) respectively. A control unit(110) generates the gate signals controlling the alternating current voltage converting operation of the alternating current converter.

Abstract translation: 目的：提供一种用于照明液晶显示器的背光的多灯的装置，通过用一个照明装置照亮多个灯来减少功率消耗和背光的尺寸。 构成：通过用于将直流电压转换成脉冲波交流电压的栅极信号（S1-S4）操作多个开关元件（10,20,30,40）。 由并联电容器（50）和变压器（60）组成的串联谐振电路根据谐振操作将脉冲波交流电压转换为正弦波交流电压。 串联电容器（80,81）由来自串联谐振元件的正弦波交流电压驱动，用于分别照亮多个灯（90,91）。 控制单元（110）产生控制交流电转换器的交流电压转换操作的门信号。

公开(公告)号：KR100449913B1

公开(公告)日：2004-09-22

申请号：KR1020020004081

申请日：2002-01-24

Applicant: 대한민국(전남대학교총장)

Inventor： 양승학 ,  임영철 ,  권기현 ,  한재현

IPC: G02F1/133

Abstract: PURPOSE: An apparatus for lighting multi-lamps for a back light of a liquid crystal display is provided to reduce power consumption and the size of the back light by lighting the multi-lamps with one lighting apparatus. CONSTITUTION: A plurality of switching elements(10,20,30,40) is operated by gate signals(S1-S4) for converting direct current voltage into pulse wave alternating current voltage. A serial resonance circuit made up of a parallel capacitor(50) and a transformer(60) converts the pulse wave alternating current voltage into sine wave alternating current voltage according to a resonance operation. Serial capacitors(80,81) are driven by the sine wave alternating current voltage from the serial resonance element for lighting a plurality of lamps(90,91) respectively. A control unit(110) generates the gate signals controlling the alternating current voltage converting operation of the alternating current converter.

Abstract translation: 目的：提供一种用于为液晶显示器的背光照明多灯的装置，以通过用一个照明装置照亮多灯来降低功率消耗和背光的尺寸。 组成：多个开关元件（10,20,30,40）由门信号（S1-S4）操作，用于将直流电压转换成脉冲波交流电压。 由并联电容器（50）和变压器（60）构成的串联谐振电路根据共振操作将脉动波交流电压转换为正弦波交流电压。 串联电容器（80,81）由来自串联谐振元件的正弦波交流电压驱动，以分别点亮多个灯（90,91）。 控制单元（110）产生控制交流转换器的交流电压转换操作的选通信号。