Method and device for increasing the density of a plurality of switchable magnetic elements
US4497545A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1982 |
| Grant date | Feb 5, 1985 |
| Priority date | — |
| Expiry date | May 5, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved grid pattern is shown for increasing the density of magnetic post elements, within a magneto-optic display, for example, wherein the post elements are separated by a grid-like pattern of spaces which are filled with conductive elements arranged generally in the X and Y directions. Each quadrilaterally shaped post element is separated by a diagonal so that the first, third, fifth . . . etc. columns of post elements have diagonals running in one direction while the second, fourth, sixth . . . etc. columns have diagonals running in the opposite direction. A region of low anisotropy material is located in the corner of each triangularly shaped magnetic post element opposite the diagonal which forms the triangular element so as to be as close as possible to all extremes of the element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.