G - Physics – 09 – G
Patent
G - Physics
09
G
40/52, 375/52
G09G 3/00 (2006.01) G09F 9/37 (2006.01)
Patent
CA 1212188
ABSTRACT OF THE DISCLOSURE A display element is formed by a four-sided right prismatic block member which is rotatable about the axis of its own, has embedded therein first and second magnetic pieces to extend along edges lying on the same diagonal line and has two display surfaces formed by two adjacent ones of four outer peripheral surfaces of the block member. A display panel comprises a display surface structure, a display switching unit and a drive unit. The display sur- faces structure has such display elements sequentially dis- posed on each line of arrangement at predetermined intervals. The display switching unit has an erasing magnetic head and a writing magnetic head common to the display elements dis- posed on each line of arrangement. The drive unit has means for moving the display elements and the erasing and writing magnetic heads relative to each other, and means for energiz- ing the writing magnetic head in synchronism with the relative movement of them.
417181
Baker Harold C.
Wakatake Masayuki
LandOfFree
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