Patent · US Expired

Method of preparing a phosphor suspension

US4409306A · kind A · utility

1Cited by

7References

5Claims

0Family size

Assignee

International Standard Electric Corporation · US

Inventors

Volker Gerstle · Lorsch, DE
Gerhard Mauz · Köngen, DE
Rolf Zondler · Stuttgart, DE

Key dates

Filing date	Mar 2, 1982
Grant date	Oct 11, 1983
Priority date	—
Expiry date	Mar 2, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/114
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Method of preparing a phosphor suspension by mixing a photosensitive material, a photosensitizer, and a phosphor for the purpose of forming a photosensitive film. The photosensitizer in the suspension is a chromic-acid solution. With such a phosphor suspension, a firmly adhering, uniform and compact phosphor film can be formed on the screen substrate. In addition, the phosphor areas obtained by this method have very sharp boundaries.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.