Lamp and driving device for backlight assembly having the same
US8174207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Jun 7, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for driving a backlight assembly includes a controller for outputting a control signal, a switching unit for outputting a DC square wave voltage in response to the control signal, an inverter for converting the DC square wave voltage into an AC voltage and a lamp for emitting light in response to the AC voltage, the lamp includes first and second glass tube portions having respective one ends bent and connected integrally to each other, first and second electrodes respectively formed at respective other ends of the first and second glass tube portions and a third electrode formed at the bent portion of the first and second glass tube portions, wherein electrical characteristics of the lamp are detected through the third electrode, wherein the electrical characteristics include voltage, current and impedance of the lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.