MULTICOLOR ELECTROPHORETIC INK, ASSOCIATED DISPLAY DEVICE, AND PRODUCTION METHOD

• Main Authors: BROCHON CYRIL, HADZIIOANNOU GEORGES, CHARBONNIER ANTOINE
• Format: Patent
• Language: English; Korean
• Published: 17.06.2015
• Subjects: ADHESIVES; ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; 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; FILLING PASTES; FREQUENCY-CHANGING; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICS; POLISHES; PRINTING; SEALS; SELECTIVE PRINTING MECHANISMS; STAMPS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

본 발명은 비극성 유기 매질에 분산된 네 가지 이상의 유형의 입자를 포함하는 다색 전기영동 잉크에 관한 것이다. 각각의 입자 유형이 이와 연관된 색의 안료를 함유하고, 양성 또는 음성 정전하를 갖는다. 본 발명은 상기 입자 유형 중 하나 이상이 자성 특성 (자성 코어) 을 가져, 각각의 입자 유형이 정전력 및/또는 자성 회복력의 조합 효과 하에 미리 정해진 방식으로 이동할 수 있는 것을 특징으로 한다. The invention relates to a multicolor electrophoretic ink comprising at least four types of particles that are dispersed in a non-polar organic medium. Each type of particles contains a pigment of a color associated therewith and has a positive or negative electrostatic charge. The invention is characterized in that at least one of said types of particles has a magnetic property (magnetic core) such that each type of particles can migrate in a predefined manner under the combined effect of an electrostatic force and/or a magnetic restoring force.