Illuminated keyboard for electronic devices and the like
US4320268A · kind A · utility
75Cited by
14References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1980 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Feb 19, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A keyboard is illuminated by an electroluminescent panel positioned between the keyboard push buttons and the switch contacts. The electroluminescent panel provides good illumination because of its proximity to the push buttons, and an actuator for each push button extends through the electroluminescent panel to insure positive operation of the respective switch contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.