Liquid crystal display device and method of driving the same

Liquid crystal display device and method of driving the same

A liquid crystal display device is provided which is capable of reducing flicker over all areas of a liquid crystal panel (40). A common voltage having a predetermined level is fed to the liquid crystal panel (40) and a reference voltage (Vf) is fed from a digital-analog converter (80) to a liquid c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: OGAWA, YASUNORI
Format: Patent
Sprache:eng ; fre ; ger
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:A liquid crystal display device is provided which is capable of reducing flicker over all areas of a liquid crystal panel (40). A common voltage having a predetermined level is fed to the liquid crystal panel (40) and a reference voltage (Vf) is fed from a digital-analog converter (80) to a liquid crystal driving circuit (50) and an image corresponding to a pixel data signal is displayed. The pixel data signal is reversed relative to a reference voltage (Vf) for every one horizontal period. The reference voltage (Vf) having been adjusted so as to be higher in side portions rather than central portions in the liquid crystal panel (40) is applied to the liquid crystal driving circuit (50). As a result, even if a common voltage is not made uniform through entire portions of a common electrode, adjustment can be achieved so that flicker is minimized over all areas in the liquid crystal panel (40).