发明名称 MAGNETISK PRESENTATIONSANORDNING
摘要 A display device is disclosed which employs a magnetic panel. The magnetic panel is formed by two oppositely arranged substrates at least one of which is transparent or semi-transparent. The space between the two substrates is filled with a dispersing liquid having a yielding value higher than 5 dyne/cm2. The dispersing liquid is prepared with fine magnetic grains, a coloring agent, a dispersing medium, and a fine grain thickener. Preferably, a multi-cell structure is provided in the space between the two substrates and the substrates are sealed to the multi-cell structure to form a plurality of independent display cells. A displaying magnet in the form of a pen is used to form a display by causing the fine magnetic grains to migrate to the front of the magnetic panel. An erasing magnet is slidably disposed at the rear of the magnetic panel.
申请公布号 SE7800616(A) 申请公布日期 1978.10.12
申请号 SE19780000616 申请日期 1978.01.18
申请人 * PILOT MAN-NEN HITSU KK 发明人 Y * MURATA;T * YOKOYAMA;H * MURATA
分类号 G09B1/08;B43L1/00;G02F1/09;G09F7/04;G09F9/37;(IPC1-7):G09F9/30 主分类号 G09B1/08
代理机构 代理人
主权项
地址