Method of fabricating a phosphor screen of a color television picture tube
US4209551A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1977 |
| Grant date | Jun 24, 1980 |
| Priority date | — |
| Expiry date | Dec 28, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M3/003
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a phosphor screen for a color picture tube is disclosed which comprises the steps of transferring an ink pattern contained on an intaglio having a surface comprising ink receiving portions with a depth of 10.mu. or more, said ink containing 15 to 90% by volume of phosphor powder, by rotatably moving at a first speed a transcriber having a cylindrical surface covered with a layer of a soft material along the surface of the intaglio in order to apply the ink pattern onto the cylindrical surface of the transcriber and transcribing said ink pattern from said transcriber onto an object to be printed for a color picture tube by rotatably moving the transcriber at a second higher speed along the surface of said object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.