Modifiable display having fixed image patterns
US6340965B1 · kind B1 · utility
9Cited by
12References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1999 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Mar 18, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Selected regions of an electronically modifiable display are fixed while other regions are left electronically modifiable. The selected regions are fixed by various methods including subjecting the selected regions to heat, light or pressure. In some embodiments, the fixed regions are reversibly fixed so that changes can be made to the fixed regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.