| 摘要 |
A back illuminated array of display elements each of which comprises a vane rotatable between two positions by interaction between an electromagnet and a permanent magnet attached to the vane. The electromagnet includes a monolithic member of soft magnetic material having a U-shaped portion and a flange portion end is configured in such a way as to reduce the reluctance of the magnetic circuit comprised by the electromagnet and permanent magnet. The monolithic member can be arranged to provide a bearing for the rotatable vane.
|
