COLORED ELECTROPHORETIC DISPLAYS

An electrophoretic medium comprises a fluid, a first, light scattering particle (1) (typically white) and second (2), third (3) and fourth (4) particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles (2-4) being non-light scatter...

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Bibliographische Detailangaben
Hauptverfasser:	YEZEK, Lee, LATTES, Ana L, LADAVAC, Kosta, MORRISON, Jennifer M, SLOMINSKI, Luke M, BARYKINA-TASSA, Olga Vladimirovna, BULL, Stephen, HERB, Craig, MILLER, David Darrell, HOOGEBOOM, Christopher L, MACDONALD, Brandon, TELFER, Stephen
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CHEMISTRY 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 DYES EDUCATION FREQUENCY-CHANGING LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PHYSICS POLISHES SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	An electrophoretic medium comprises a fluid, a first, light scattering particle (1) (typically white) and second (2), third (3) and fourth (4) particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles (2-4) being non-light scattering. The first (1) and second (2) particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third (3) and the fourth (4) particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.