Matrix array of cathode ray tubes display device
US5057739A · kind A · utility
35Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1989 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Dec 28, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A large area display has a plurality of cathode ray tubes mounted adjacent each other in X, Y matrix and each cathode ray tube includes a plurality of pixels arranged in an X, Y matrix on a front panel and each pixel comprises three horizontally extending stripe-shaped luminous elements aligned in the vertical direction and the front panel of the cathode ray tube is formed with a thinner portion adjacent its outer edge where it joins to the funnel to reduce the spacing between adjacent cathode ray tubes to a minimum to allow the pixels to be viewed over a wider angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.