Aktivmatrix-Flüssigkristallanzeige

The invention relates to an active matrix liquid crystal display with liquid crystal cells arranged in lines and columns, which are located on a common reference potential on one side and gray-scale value signals can be switched on their other side. In order to enhance the voltage range within which...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MAERZ, MICHAEL, WAMMES, KLAUS
Format:	Patent
Sprache:	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 DISPLAYING EDUCATION FREQUENCY-CHANGING LABELS OR NAME-PLATES NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS SIGNS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The invention relates to an active matrix liquid crystal display with liquid crystal cells arranged in lines and columns, which are located on a common reference potential on one side and gray-scale value signals can be switched on their other side. In order to enhance the voltage range within which the liquid crystal cells can be operated without altering image reproduction, a correction device (28) is provided which distorts the gray-scale value signals (20) reaching the liquid crystal cells (9) on the basis of information regarding the typical dependency between the optical transparency of the liquid crystal cells (9) and the voltage applied thereon and regarding the dependency of the difference in potential between the gray-scale value signals (2) and the reference potential (V0) in such a way that an at least an almost linear relationship between the optical transparency of the liquid crystal cells (9) and the undistorted gray-scale value signals (20') is obtained.