Backlight unit and display device including the same
US9142189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Aug 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A backlight unit includes a power supply converter including a primary winding connected to an input power supply voltage, and a secondary winding which is connected to an output node and outputs a light emitting diode drive voltage to the output node in response to a mode signal and a switching control signal; and a light emitting diode string connected to the output node of the power supply converter, where the power supply converter serially connects a boosting winding to the secondary winding and the output node and when the mode signal represents a three dimensional image display mode, and outputs a boosted light emitting diode drive voltage to the output node through the boosting winding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.