Backlight unit and display apparatus having the same
US8334833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2007 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Feb 13, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus, includes: a display unit which displays a video; a light source unit having a plurality of light sources which are independently driven, and which illuminate the display unit; and a driving unit which drives the light source unit. The driving unit includes: a driving signal generating unit which generates a driving signal which has a first voltage level and a second voltage level so that the plurality of light sources can be independently driven, and a control unit which blocks or applies the driving signal to drive the light source unit based on a voltage level which is applied to the light source unit if the driving signal which is generated by the driving signal generating unit is the first voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.