Method of manufacturing spacers for flat viewing screens
US5989090A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | May 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/863
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for collective manufacturing of spacers (35) for flat viewing screens with high voltage control and divided into picture elements or pixels (28), characterized in that it comprises the following steps: PA1 machining a substrate, of an adequate material for making spacers, in view of obtaining a profile structure (30) with a cross section (32, 42, 52) comprising a center core (33, 43, 53) and lateral stiffeners (34, 44, 54), the thickness of the center core and the lateral stiffeners as well as the distance separating the lateral stiffeners being such that said section can be inserted between the screen pixels without overlapping them, cutting the profile structure (30) obtained during the preceding interval in view of obtaining sections of a given length, designed to form said spacers (35).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.