ELECTRO-OPTIC MEDIA INCLUDING OPPOSITELY CHARGED PARTICLES AND VARIABLE TRANSMISSION DEVICE INCORPORATING THE SAME

A variable transmission electro-optic medium includes an encapsulated bistable dispersion containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and capable of being switched between an open state and a closed sta...

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Bibliographische Detailangaben
Hauptverfasser:	TELFER, Stephen J, WHITESIDES, Thomas H
Format:	Patent
Sprache:	eng ; fre
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 variable transmission electro-optic medium includes an encapsulated bistable dispersion containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and capable of being switched between an open state and a closed state. The plurality of electrically charged particles may include a first set of charged particles and a second set of charged particles, such that a color of the first set of charged particles is the same as a color of the second set of charged particles, and the first set of charged particles has a polarity that is opposite to a polarity of the second set of charged particles. La présente invention concerne un milieu électro-optique à transmission variable comprenant une dispersion bistable encapsulée contenant une pluralité de particules électriquement chargées et un fluide, les particules chargées pouvant se déplacer par l'application d'un champ électrique et pouvant passer d'un état ouvert à un état fermé. La pluralité de particules chargées électriquement peuvent comprendre un premier ensemble de particules chargées et un second ensemble de particules chargées, de sorte qu'une couleur du premier ensemble de particules chargées soit identique à une couleur du second ensemble de particules chargées, et le premier ensemble de particules chargées a une polarité qui est opposée à une polarité du second ensemble de particules chargées.