Liquid crystal display and device

A liquid crystal display comprises a nematic liquid crystal layer (12) disposed between alignment layers (10,11). The alignment layers (10,11) are formed on substrates (6,7) which also carry display control electrodes (8,9) connected to a drive circuit (3). Polarisers (1,4) are provided on opposite...

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Bibliographische Detailangaben
Hauptverfasser:	KOHZAKI, SHUICHI, HARROLD, JONATHAN, RAYNES, EDWARD PETER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	A liquid crystal display comprises a nematic liquid crystal layer (12) disposed between alignment layers (10,11). The alignment layers (10,11) are formed on substrates (6,7) which also carry display control electrodes (8,9) connected to a drive circuit (3). Polarisers (1,4) are provided on opposite sides of the substrates (6,7). The alignment layers (10,11) are arranged such that the liquid crystal molecule pretilt direction is the same (parallel) on both surfaces of the alignment layers (10,11). The liquid crystal layer (12) has a retardance equal to (M+1) lambda /2 at a first operating voltage and M lambda /2 at a second operating voltage, where M is an integer greater than zero or less than minus one and lambda is a wavelength of visible light. In another embodiment, the display includes a phase plate (30).