Method of driving light emitting diode backlight unit and display device performing the same
US11875755B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2022 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of driving a light emitting diode (LED) backlight unit, which includes a plurality of LED elements that are connected to a plurality of gate lines and a plurality of source lines, includes generating a plurality of gate signals applied to the plurality of gate lines. While the plurality of gate signals are generated, a non-overlap interval between activation intervals of two adjacent gate signals is generated. All of the plurality of gate signals are deactivated during the non-overlap interval. A plurality of source signals applied to the plurality of source lines are generated. While the plurality of source signals are generated, a high-impedance (Hi-Z) interval included in the non-overlap interval is generated. At least some of the plurality of source signals have a high-impedance state during the high-impedance interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.