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    • 3. 发明公开
    • Magnetophoretic display panel
    • Magnetophoretische Anzeigevorrichtung
    • EP1083538A1
    • 2001-03-14
    • EP00307705.4
    • 2000-09-07
    • Takara Co., Ltd.
    • Nihira, YoshitoItou, Takahiro
    • G09F9/37B43L1/00
    • B43L1/008G02F2001/094G09F9/375
    • A magnetophoretic display panel capable of displaying clear and distinct indicia and erasing the indicia neatly. The display panel includes a multi-cell structure (5) having a thickness of 0.8 to 1.5 mm and formed with a number of cells (6) which contain therein colored liquids (9, 9a, 9b, 9c) and colored magnetic particles (4). A magnetic pen (2) exhibits an effective magnetic flux density of 100 to 500 Gauss at a bottom of a magnetic panel (1) when positioned on a surface (1a) of the magnetic panel (1). An erasure magnet (6) exhibits an effective magnetic flux density of 300 to 1500 Gauss at the surface (1a) of the magnetic panel (1) when positioned on the bottom of the magnetic panel (1).
    • 一个磁屏幕显示面板,能够显示清晰明确的标记,并整齐地擦除标记。 显示面板包括具有0.8至1.5mm厚度的多单元结构(5),并形成有多个单元(6),其中包含着色液体(9,9a,9b,9c)和着色磁性颗粒(4) )。 当磁性笔(2)位于磁性面板(1)的表面(1a)上时,磁笔(2)在磁性面板(1)的底部具有100至500高斯的有效磁通密度。 当位于磁性面板(1)的底部时,擦除磁体(6)在磁性面板(1)的表面(1a)处表现出300至1500高斯的有效磁通密度。
    • 4. 发明公开
    • Method for forming an image on a magnetic composite medium and apparatus therefor
    • Verfahren und Vorrichtung zum Formen eines Bildes auf zusammengesetztem Material。
    • EP0566329A1
    • 1993-10-20
    • EP93302798.9
    • 1993-04-08
    • AT&T Corp.
    • Jin, SunghoTiefel, Thomas Henry
    • B43L1/00
    • B43L1/008
    • In accordance with the invention, an image is formed by applying a local magnetic field to selected regions of a magnetic composite medium (10) comprising columns (11) of magnetic particles distributed in a matrix medium. The particles are "hard" or "semi-hard" magnetic materials in order to retain the latent image (13) as residual magnetism, and the image is developed by exposure to magnetic fluid or powders (15). The image can be erased by exposure to an AC demagnetizing field or a DC sweep magnet. Preferred apparatus for making such images comprises a sheet of such composite material having a pair of major surfaces with columns (11) of magnetic particles oriented between the surfaces. A local magnetic field, such as a magnetic pen (14), can be used to write a latent magnetic image (13) on one of the major surfaces. The magnetic columns present the latent image for development at either major surface. In preferred apparatus, one major surface is adapted for magnetic image writing and the other major surface is positioned in sealed relationship with a chamber for exposing the image to magnetic development material. In this arrangement the columns (11) provide a high resolution image on the second surface despite the thickness of the medium between the write and development surfaces.
    • 根据本发明,通过将局部磁场施加到包括分布在矩阵介质中的磁性颗粒的列(11)的磁性复合介质(10)的选定区域来形成图像。 颗粒是“硬”或“半硬”磁性材料,以便将潜像(13)保留为剩余磁性,并且通过暴露于磁性流体或粉末(15)显影图像。 可以通过暴露于AC去磁场或DC扫描磁体来擦除图像。 用于制造这种图像的优选装置包括具有一对主表面的这种复合材料的片材,其中在表面之间定向的磁性颗粒柱(11)。 可以使用诸如磁笔(14)的局部磁场来将潜在磁图像(13)写入主表面之一上。 磁性色谱柱呈现潜像以便在任一主表面上显影。 在优选的装置中,一个主表面适用于磁图像写入,另一个主表面与用于将图像暴露于磁性显影材料的腔室处于密封关系中。 在这种布置中,尽管在写入和显影表面之间的介质的厚度,列(11)在第二表面上提供高分辨率图像。
    • 7. 发明公开
    • Magnetic display
    • Magnetische Anzeigevorrichtung
    • EP1315137A2
    • 2003-05-28
    • EP02257394.3
    • 2002-10-24
    • JAPAN CAPSULAR PRODUCTS, INC.
    • Kanno, Yasuyuki, c/o Japan Capsular Products, Inc.
    • G09F9/37G02B26/02B43L1/00
    • G09F9/375B43L1/008G02F2001/094
    • 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.
    • 提供能够使形成在显示表面上的图像着色的磁性显示器,并且解决干涉色的角度依赖性的问题,从而消除由于不同的视角而发生的颜色变化。 在磁性显示器中,作为不可缺少的特征的磁性粒子固有地表现出的颜色的黑色和图像形成元件被转换成各种颜色,而不使用任何着色材料等。 磁性显示器具有两个非磁性基板,其中至少一个是透明的; 并且在非磁性基板之间施加微胶囊涂层。 微胶囊包含并密封分散在油性分散液中的吸光黑色磁性微粒和光反射性非磁性微粒。 阵列层被埋在包围含有光吸收性黑色磁性细颗粒和光反射性非磁性细颗粒的油性分散液的每个微胶囊的胶囊壁中,其中片状颗粒由多层 将作为光吸收性黑色磁性细颗粒固有地表现出的颜色的显示面上形成的字符或图像的黑色转换为各种干涉色的结构被布置成平行于表面 的胶囊壁沿着微胶囊的整个球形表面。