CONTROL OF LIQUID CRYSTAL ALIGNMENT IN OPTICAL DEVICE

PROBLEM TO BE SOLVED: To provide a method that allows simultaneous control of a macroscopic azimuthal and zenithal liquid crystal (LC) alignment (Φ, θ) across a liquid crystal layer. SOLUTION: In the illustrated example, substantially homeotropic alignment (z direction) tends to be induced in an ali...

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Bibliographische Detailangaben
Hauptverfasser:	GASS PAUL A, SMITH NATHAN, MUSGRAVE BRONJE M, TILLIN MARTIN D, BRAMBLE JONATHAN P
Format:	Patent
Sprache:	eng
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 ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method that allows simultaneous control of a macroscopic azimuthal and zenithal liquid crystal (LC) alignment (Φ, θ) across a liquid crystal layer. SOLUTION: In the illustrated example, substantially homeotropic alignment (z direction) tends to be induced in an alignment region (T1) of a 1st type and substantially planar alignment (x direction and y direction) with different orientations tends to be induced in alignment regions (T2, T3) of 2nd and 3rd types. Control of macroscopic zenithal liquid crystal alignment (θ) is achieved by controlling the area ratio of homeotropic (T1) and planar (T2, T3) region types, and control of macroscopic azimuthal (Φ) liquid crystal alignment is achieved by controlling the area ratio of two planar region types (T2, T3). COPYRIGHT: (C)2005,JPO&NCIPI