Self supporting flat video display
US5424605A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1992 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Apr 10, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/91
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat screen cathode ray tube is self supporting of a phosphor coated glass face place in that a multiplicity of support points or lines of support extend from an addressing grid structure to contact the inside surface of the face plate between pixels. A cathode or back plate is similarly supported against the addressing structure. The addressing structure itself is formed of a series of ceramic plates or layers, assembled in an unfired state wherein the ceramic and/or glass materials are held together with a plastic binder and are flexible and easily handled. A matrix of very small holes is formed in each plate, one hole for each of the R, G and B components of each pixel in a color display. The holes, in registry in the laminated addressing grid structure, each have adjacent conductive metal traces deposited on the ceramic surfaces, and these traces, connected by vias between layers, form a grid of connectors which permit the addressing of each pixel in a sequence in accordance with an input signal such as a video signal. Addressing traces preferably extend between ceramic layers under the hermetic seal of the CRT so that the seal does not directly cross any addressing traces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.