Aluminization process of the internal face of the screen of a color television tube
US4590092A · kind A · utility
7Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Sep 26, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
On the internal face of the frontal panel forming a color television tube, in order to obtain a cathodoluminescent screen, phosphors are deposited. A layer of aluminum must be deposited on the phosphors. An intermediate smoothening product, later decomposed, permits to obtain a layer of a satisfactory quality. A layer of ammonium tetraborate, forming microcrystals, is deposited on the product, piercing the aluminum layer so as to help the discharge of gases resulting from the decomposition of the intermediary layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.