Method of sealing a flat-type fluorescent lamp device and process for coating fluorescent layers on corresponding first and second substrates
US7717765B2 · kind B2 · utility
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6References
8Claims
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Key dates
| Filing date | Sep 13, 2007 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Nov 7, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/305
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat-type fluorescent lamp device includes a first substrate, a plurality of first and second electrodes arranged on the first substrate at fixed intervals, a first fluorescent layer on an entire surface of the first substrate including the first and second electrodes, a second substrate having a plurality of projection portions for maintaining a uniform gap between the first and second substrates, and a second fluorescent layer on the second substrate except at regions of the projection portions that contact the first substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.