ELECTRO-OPTIC ASSEMBLIES

• Main Authors: CHEN, EVA, HONEYMAN, CHARLES, H, FAZEL, SHAFIQ, N, KLINGENBERG, ERIC, HOWARD
• Format: Patent
• Language: English; French; German
• Published: 20.10.2010
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; 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; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

An electrophoretic medium (100) comprising a plurality of capsules (140), each of the capsules (140) comprising a capsule wall, a suspending fluid encapsulated within the capsule wall and a plurality of electrically charged particles (150,160) suspended in the suspending fluid and capable of moving therethrough on application of an electric field to the medium (100), the medium (100) further comprising a binder (170) surrounding the capsules (140), the medium (100) being characterized in that the binder (170) comprises a mixture of a polymeric adhesive material and an additive selected from a salt, a polyelectrolyte, a polymer electrolyte, a solid electrolyte and combinations thereof.