LIQUID CRYSTAL DISPLAY DEVICE

The purpose of this invention is to provide a liquid crystal display device which can realize a broad visual field angle comparable to a cathode ray tube and enables high brightness, high image quality, low power consumption and a narrow frame. To achieve above object, in an active matrix system liq...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OHTA, MASUYUKI, ISHII, MASAHIRO, ONO, KIKUO, SUZUKI, NOBUYUKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEMICONDUCTOR DEVICES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The purpose of this invention is to provide a liquid crystal display device which can realize a broad visual field angle comparable to a cathode ray tube and enables high brightness, high image quality, low power consumption and a narrow frame. To achieve above object, in an active matrix system liquid crystal display device, a counter electrode and a pixel electrode are linearly formed so as not to flatly overlap each other, thus enabling generation of an electric field parallel to the substrate surface, and an insulating film having a specific dielectric constant not greater than 4 is formed on a drain line, thus forming the counter electrode on the insulating film to cover the drain line.