Planar light-emitting module lighting circuit and illuminating device
US8502471B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Oct 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A planar light-emitting module lighting circuit uses a lamp comprising an organic electroluminescence layer and electrodes sandwiching the organic electroluminescence layer as a load, and applies a current to the load so as to cause the organic electroluminescence layer to emit light. In the planer light-emitting module lighting circuit, a current at a lighting start time of the lamp is made small as compared with a current at a stationary lighting time at which a predetermined time period has passed since a lighting start.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.