Substrate for thin film electroluminescent display panel
US4731958A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1986 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Jan 14, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A glass substrate for supporting an electroluminescent (EL) display element comprising two dielectric layers defining a thin film EL layer, and two electrode layers, attached to each of the two dielectric layers is characterized by being composed of barosilicic acid without hydrolytic products thereon. A method for preparing such a glass substrate comprises the steps of preparing a glass substrate composed of borosilic acid, grinding a surface of the glass substrate, and cleaning the surface of the glass substrate without soaking it in an acidic solution, so that the glass substrate is free from formed hydrolytic products on the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.