Dispersion for preventing electrification antistatic film and image display device
US6992431B2 · kind B2 · utility
5Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2001 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Oct 3, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2995
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An image display device having a vacuum envelope which has a light transmissible panel, a funnel and a neck, its inside held vacuum, a phosphor layer is formed on the inside surface of the light transmissible panel, an electron gun is disposed within the neck. An antistatic film which contains high-resistance fine particles having a specific resistivity of 106 to 109 Ω·cm is formed on inside wall of the neck. The image display device is free from deterioration of display characteristics caused by a change of the track of electrons emitted by the application of voltage, a spark in a tube, or a leakage current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.