Color temperature tuning method, color temperature tuning apparatus and display apparatus
US9236026B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 27, 2013 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Jun 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0666
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention relate to a color temperature tuning method, a color temperature tuning apparatus, and a display apparatus. The color temperature tuning method includes the steps of: matching an input color temperature signal with a color temperature value in the color temperature lookup table, and extracting a current signal corresponding to the color temperature value matching with the input color temperature signal from the color temperature lookup table; and controlling a light emitting device to emit light according to the current signal. According to embodiments of the present invention, intermediate calculation process is omitted and time for tuning the color temperature is shorten. Currents flowing through the blue and green light emitting elements are controlled to emit lights to excite red fluorescent powder, so that the LED emits lights having various color temperatures, and tuning accuracy of the color temperature and user experience are improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.