Electronic watch with illumination device
US4221112A · kind A · utility
7Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1978 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Nov 13, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G9/0041
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic watch construction which comprises a casing, a watch glass supported by the casing, a module fixedly held in the casing and having a recess facing the watch glass, and a liquid crystal display cell at least a portion of which is disposed in the recess of the module, the display cell being fixedly mounted on one side of the module. An illumination device is disposed in the recess of the module below the liquid crystal display cell to illuminate the liquid crystal display cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.