LCD device public voltage source and its electric charge recovery system

The invention provides a public voltage source applied to a liquid crystal display and a charge recovery system. The charge recovery system comprises the public voltage source, a control unit and a source cathode driving circuit, wherein, before the public voltage source switches the output level of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JIANG WEISHAN, LIU MINGHUANG, OU WEIYANG, HAN CHENGXIAN, HUANG QIMO
Format:	Patent
Sprache:	chi ; 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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The invention provides a public voltage source applied to a liquid crystal display and a charge recovery system. The charge recovery system comprises the public voltage source, a control unit and a source cathode driving circuit, wherein, before the public voltage source switches the output level of the public voltage source, the control unit controls the public voltage source so as to lead a voltage driving circuit in the public voltage source to be broken with an output end, a charge recovery start signal is output to the source cathode driving circuit so as to adjust the level of source cathode voltage output by the source cathode driving circuit, by increasing or decreasing the level of the source cathode voltage, the charge stored in the liquid crystal cell of the liquid crystal display is recycled to the public voltage source, thus achieving the aim of increasing the charge use efficiency of the liquid crystal display and reducing consumed power.