G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/09 (2006.01) G09F 9/37 (2006.01)
Patent
CA 2285833
A magnetophoresis type display device provided with a transparent front panel sheet, a back panel sheet arranged with respect to the front panel sheet so as to form a sealed space with it, a partitioning member provided between the front panel sheet and the back panel sheet for partitioning the sealed space into a large number of cells, a liquid dispersion containing magnetic particles to be sealed inside the cells formed by partitioning by the partitioning member, a recording magnetic member provided to be able to move along the outer surface of the front panel sheet and having a magnetic force of an extent giving an effective magnetic flux density of 100 to 500 Gauss at the outer surface of the back panel sheet in the state when the recording magnetic member is brought into contact with the outer surface of the front panel sheet, and an erasing magnetic member arranged at the outer surface of the back panel sheet and having a magnetic force of an extent giving an effective magnetic flux density of 100 to 1500 Gauss at the outer surface of the front panel sheet in the state when the erasing magnetic member is brought into contact with the outer surface of the back panel sheet. By defining the effective magnetic flux densities of the magnetic members at the panel surface, it is possible to eliminate image breaks in display at the boundary portions of the individual cells and improve the contrast of the display image and the resolution of the display image.
Imamura Kenji
Itou Takahiro
Nihira Yoshito
Mcfadden Fincham
Takara Corporation Limited
Tdk Corporation
LandOfFree
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