Liquid crystal display calculator construction
US4104727A · kind A · utility
15Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1976 |
| Grant date | Aug 1, 1978 |
| Priority date | — |
| Expiry date | Sep 23, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electronic calculator essentially comprising a multidigit display, a keyboard and a data processor unit, a multidigit liquid crystal display is deposited together with integral key actuators of the keyboard on a flexible circuit film which carries electrical conductor leaves in a desired pattern. The conductor leaves to be in contact with terminals of the liquid crystal display are formed to extend in the direction of length of the liquid crystal display to thereby establish room for a battery compartment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.