Magnetic display panel and method for producing the same

A method for manufacturing a magnetic display panel, comprising the steps of:

• forming olefin synthetic resin into a core housing which has a peripheral edge formed to have an increased height and is formed therein with a recess;
• arranging a core block in said recess of said core housing, said core block being made of paper and provided with a number of cells;
• bonding said core block and said recess of said housing to each other by means of an adhesive;
• charging a plastic dispersion liquid containing magnetic particles in said core block;
• arranging a face member in a manner to be opposite to said core housing with said core block being interposed between said face member and said core housing, said face member being made of olefin synthetic resin;
• applying an adhesive to a rear surface of said face member;
• and
• bonding said rear surface of said face member to an open surface of said core block to encapsulate said plastic dispersion liquid in said cells.

A magnetic display panel for providing images by application of a magnetic field comprising:

• a core housing including a bottom surface and a perimeter side wall;
• a core block provided with a plurality of flexible cells made of paper mounted on the bottom surface and between the perimeter side wall;
• a liquid having magnetic particles contained within each cell;
• and
• a face plate member mounted on the core housing to seal the core block and liquid in the core housing, the core block encapsulated and sealingly joined between the bottom surface of the core housing and the face plate by an adhesive, wherein application of a magnetic field can attract the magnetic particles to form an image,
• wherein the core housing and the face plate member are formed of an olefin synthetic resin.