Passive electro-optic display device
US4068230A · kind A · utility
5Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1976 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Oct 21, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133504
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electro-optic display device having an activable surface. The surface including several separately activable zones, each zone having at least two sets of parallel discrete elements imbricated one in another and each set also separately activable. By simultaneously activating several different sets of elements, at least two separate imbricated patterns or data may be displayed simultaneously. The separate patterns may be observed independently through a reticulated transparent screen which may be movable to display one pattern, then the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.