Display apparatus for adjusting current provided to light emitting element and control method thereof
US11830453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2022 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | May 12, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus includes a liquid crystal panel, a power supply, a backlight unit including a plurality of sub-blocks configured to radiate light to the liquid crystal panel, and a controller configured to determine a peak voltage and a source voltage supplied to each of the plurality of sub-blocks. Each of the plurality of sub-blocks includes a first switching element configured to receive the peak voltage as a gate voltage, and a second switching element including a drain terminal connected to a source terminal of the first switching element, the second switching element configured to receive an amount of charges corresponding to the source voltage through a gate terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.