Color cathode ray tube
US6933668B2 · kind B2 · utility
0Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2004 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Jan 22, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/862
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode ray tube according to an embodiment of the present invention includes a panel having an effective screen; a funnel connected to the panel; and an electron gun to generate electron beams. The effective screen has a horizontal and vertical ratio of 16:9; and the panel satisfies a condition: [(Δy/d)×100)≦5.65, wherein d is length from a central point G to a diagonal vertex E of the effective screen, and Δy is length from a point H to an intersection point of the outline of the panel and the shorter axis Y, the point H being intersection of shorter axis Y and a longer side of the effective screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.