| 摘要 |
An electromagnetic display element (1) capable of displaying gray scale or color shades is disclosed. The electromagnetic display element has the advantage of not needing electrical power to maintain its color states. Collectively, they are able to display richer images then existing electromagnetic display elements. The electromagnetic display element comprises of a body (3) with an internal hole of a color, a magnetic nucleus of another color within it, a front light filter (2), and electromagnets to control and move the nucleus forward or backward to display gray scale or color shades accordingly.
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