Magnetophoretic reversal display panel and magnetophoretic reversal display method
A technology for display panels and magnetophoresis, applied in the fields of magnetophoretic moving and inverting display panels, magnetophoretic moving and inverting display panels, and magnetophoretic moving and inverting displays, which can solve inconvenient use, difficulty in erasing, Restrictions and other issues
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example 1
[0073] By applying and drying the magnetic ink using the following procedure, a blue magnetic sheet was obtained, by coating a polyethylene terephthalate (hereinafter referred to as "PET") film with a thickness of 25.0 μm in which methyl ethyl ketone ( The magnetic ink was prepared by dispersing and dissolving the components listed in Table 1 in hereinafter referred to as "MEK". At this time, the thickness of the blue magnetic ink layer is 25.5 μm and the coating mass is 51.3 g / m 2 .
[0074] step 1
[0075] At the mixing ratio in Table 1, the resin components were dissolved in MEK, and two magnetic materials having different magnetic characteristics were added, followed by dispersion for one hour using an attritor mill.
[0076] step 2
[0077] A pigment-dispersed substance prepared by dispersing a blue pigment in MEK was added to the dispersion at the mixing ratio in Table 1, and mixed and stirred. Thus, a magnetic ink exhibiting blue color was obtained. (solid content ...
example 13
[0154] Example 13 showed a tendency to aggregate, so Example 14 was made the more preferred form by controlling the yield value.
[0155] Although the saturation magnetization in Example 16 was very low, and caused slightly difficult swimming characteristics, Example 16 showed satisfactory results overall, and when the yield value was lowered in Example 17, better control was possible. Also, although the residual magnetization in Example 16 was slightly lower, thus showing a tendency to produce unreversed micromagnets, this Example showed satisfactory results overall.
example 19
[0156] Example 19 shows a slight tendency to aggregate, and although this aggregation can be controlled by increasing the yield value, the following constraints arise: the yield value must be set very high, creating a dependence on time variation and ambient temperature; and external Magnets must be reinforced.
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Abstract
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