Electroluminescent optical devices
US4159443A · kind A · utility
6Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1978 |
| Grant date | Jun 26, 1979 |
| Priority date | — |
| Expiry date | Jul 18, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Devices of the nature of magnetic bubble devices, but in which "bits" take the form of light spots, are described. A prototypical device takes the form of an electroluminescent, photoconducting film straddled by orthogonal arrays of insulated strip electrodes forming closely spaced intercept positions so arranged that during operation such intercepts are sequentially biased. A light spot once nucleated--e.g., through a combination of electroinduced and photoinduced luminescence, is stepped by applying bias below nucleation threshold. Devices may serve a variety of memory and/or logic functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.