Plasma panel with low-scatter screen
US5471112A · kind A · utility
5Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1993 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jun 17, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J17/49
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
It is sought to improve the image contrast of plasma panel type display screens. A plasma panel comprises a front plate (D1) bearing photoluminescent elements (LB1, LV1) constituted by grains (GL1, GLn) of luminophor material. According to one characteristic, the grains (GL1, GLn) have a diameter of less than 1.5 micrometer. This, in relation to the prior art, constitutes a substantial reduction of the diameter of the luminophor grains, which leads to reducing the coefficient of reflectance, the result of which is an improvement of the contrast of the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.