Flat panel for cathode-ray tube
US7005791B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 2, 2002 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Jan 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/8613
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is related to a flat panel for cathode-ray tube capable of securing a large viewing area in the flat panel which is fitted into a window of a cabinet. In accordance with the panel of the present invention, stepped portions are formed along an edge of a face to fit the panel into the window of the cabinet. A depth from a surface of the face to a surface of the stepped portion is set to satisfy a condition of 2≧Tf/Tc≧0.7 where Tf is a vertical distance from a starting point of the stepped portion to an inner surface of the panel and Tc is a thickness of the center of the face. The panel in accordance with the present invention can provide perceptual flatness to a viewer; improved implosion-proof characteristics; and a structure capable of enduring an external mechanical impact. Further, the panel having a precise structure can be manufactured by a press-molding process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.