发明名称 LAMP BREAKING DETECTING METHOD FOR LIQUID CRYSTAL DISPLAY DEVICE
摘要 A method for detecting the breakage of a lamp for an LCD is provided to promptly and accurately check the breakage of the lamp even without disassembling of the LCD, by generating a detection voltage from the lamp and applying the detection voltage to a detecting unit. A fluorescent lamp receives a driving voltage and emits a light. A detecting unit(100) measures a detection voltage from the fluorescent lamp. A comparing unit(200) receives the detection voltage, and compares the detection voltage with a comparison reference voltage. A light emitting diode(LED) is turned on or turned off according to signal of the comparing unit.
申请公布号 KR20070000143(A) 申请公布日期 2007.01.02
申请号 KR20050055654 申请日期 2005.06.27
申请人 LG.PHILIPS LCD CO., LTD. 发明人 YOON, BYUNG GI
分类号 G02F1/13357 主分类号 G02F1/13357
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