MAGNETIC INDICATOR PANEL WITH INVERSION OF MATERIAL Russian patent published in 2004 - IPC

FIELD: formation of images by inversion of magnetic displaying material by means of magnet. SUBSTANCE: technical result of invention-definition of formed image and frequency of its erasure are secured thanks to presence of liquid dispersive medium showing certain value of yield point and carrying magnetic material in the form of thin particles which have magnetic poles of opposite signs colored differently in magnetic-inversion panel. Liquid dispersive medium includes dispersive liquid and thickening agent as key components and is located in element-carrier. Summary area of surface of S poles or of surface of N poles of magnetic displaying material in the form of thin particles amounts to more than 60% of area of displaying surface of indicator panel, is either equal to this surface or exceeds area of displaying surface by factor of not more than five times. EFFECT: enhanced definition of formed image. 7 cl, 5 tbl