发明名称 Magnetic display
摘要 A magnetic display capable of colorizing an image formed on the display surface and of solving the problem of the angle dependency of an interference color to thereby eliminate color change occurring due to different viewing angles is provided. In the magnetic display, black color that is a color inherently exhibited by magnetic particles to be provided as indispensable character, and image-forming elements is converted into a wide variety of colors without using any coloring material or the like. The magnetic display has two non-magnetic substrates, at least one of which is transparent; and a microcapsule coating layer is applied between the non-magnetic substrates. The microcapsules contain and seal light-absorptive black magnetic fine particles and light-reflective non-magnetic fine particles being dispersed in an oily dispersion liquid. An array layer is buried in a capsule wall of each of the microcapsules enclosing the oily dispersion liquid that contains the light-absorptive black magnetic fine particles and light-reflective non-magnetic fine particles, in which flake shape particles consist of a multi-layered structure for converting the black color of a character or image formed on a display surface, which is a color inherently exhibited by the light-absorptive black magnetic fine particles, into a variety of interference colors are arranged so as to be oriented parallel to the surface of the capsule wall along the entire spherical surface of the microcapsule. <IMAGE>
申请公布号 EP1315137(A2) 申请公布日期 2003.05.28
申请号 EP20020257394 申请日期 2002.10.24
申请人 JAPAN CAPSULAR PRODUCTS, INC. 发明人 KANNO, YASUYUKI
分类号 G02F1/21;B43L1/00;G02F1/09;G02F1/17;G02F1/19;G09F9/37;(IPC1-7):G09F9/37;G02B26/02 主分类号 G02F1/21
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