LIQUID CRYSTAL DISPLAY AND METHOD FOR DETECTING UNSTABLE CURRENT

An LCD(Liquid Crystal Display) device and an abnormal current detecting method are provided to determine the abnormality of a lamp through an inverter circuit with a simple structure, thereby simplifying the configuration of a circuit. A control unit(100) delivers an operating signal to a resonance...

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Bibliographische Detailangaben
1. Verfasser:	GO, GWANG MI
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY EDUCATION ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	An LCD(Liquid Crystal Display) device and an abnormal current detecting method are provided to determine the abnormality of a lamp through an inverter circuit with a simple structure, thereby simplifying the configuration of a circuit. A control unit(100) delivers an operating signal to a resonance circuit unit(200). According to the operating signal of the control unit, the resonance circuit unit outputs the resonance signal of current and voltage to operate each lamp. A current detection unit(400) detects voltage or current supplied to the lamp to feed the detected voltage or current to the control unit. The current detect inputs a pair of currents to one of output terminals of both ends of a lamp(500) and the other output terminal of output terminals of both ends of the other lamp(510) in order to perform the feedback to the control unit.