IMPROVED LOW-TEMPERATURE ELECTROPHORETIC MEDIA

Improved formulations of electrophoretic media that can be incorporated into displays, front plane laminates, inverted front plane laminates, or color changing films. The formulations include a non-polar fluid, a plurality of first charged particles, and charge control agents (CCA) including a quate...

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Bibliographic Details
Main Authors DUNKERLEY, ERIK, DU, HUI, LADAVAC, KOSTA, WU, ZIYAN, BARYKINA-TASSA, OLGA VLADIMIROVNA, LOCK, JOHN, FEICK, JASON D, ABORN, JAMES H
Format Patent
LanguageEnglish
Polish
Published 05.07.2021
Subjects
ADHESIVES
CHEMISTRY
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
DYES
FREQUENCY-CHANGING
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PAINTS
PHYSICS
POLISHES
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:Improved formulations of electrophoretic media that can be incorporated into displays, front plane laminates, inverted front plane laminates, or color changing films. The formulations include a non-polar fluid, a plurality of first charged particles, and charge control agents (CCA) including a quaternary amine and an unsaturated polymeric tail comprising monomers of at least 10 carbon atoms in length. The formulations show improved switching speeds, as well as a larger dynamic range at low temperatures (i.e., below about 0° C.), where compared to state-of-the-art electrophoretic media.
Bibliography:Application Number: PL20160854159T