Method and apparatus for coordinate dimming of electronic displays
US4340889A · kind A · utility
9Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1980 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | Aug 6, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for adjustably activating an electronic display for selected display cycle periods defined by correspondingly selected ON time periods of activation in combination with correspondingly selected OFF time periods of activation to control the brightness level of the display at any one of a nonlinear pattern of levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.