Methods and apparatus for providing a near-IR emission suppressing/color enhancing accessory device for plasma display panels
US6084705A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1998 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Jan 2, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/8636
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention is directed to methods and apparatus for enhancing the performance of visual display units which utilize plasma display panels. More specifically, the present invention provides methods and apparatus for providing an electrical noise suppressing/chromaticity enhancing accessory device for positioning in front of the viewing surface of a plasma display panel. In its most basic embodiment, the accessory device of the present invention comprises a first and a second rigid substrate laminated together by a laminating layer; an optically selective coating providing high photopic transmittance, continuous high electrical conductivity for RFI shielding, and reflectivity specifically within the near-IR region that is mechanically protected by being sandwiched between one rigid substrate and the laminating layer; and, a multiple-dye coating for selectively absorbing IR energy emissions and selectively balancing the chromaticity of the PDP display. The combination of the IR absorption and color-correction due to the multiple-dye coating and the near-IR reflectivity due to the optically selective coating surprisingly results in very good suppression of IR emissions from …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.