Brightness control apparatus and brightness control method
US9275584B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jan 17, 2014 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Apr 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A brightness control apparatus and a brightness control method are provided. A conversion unit converts a first pulse width modulating signal, indicating brightness of a display, into a DC signal. An analog to digital conversion unit converts the DC signal into a second pulse width modulating signal according to at least one of an environmental condition and a load state of an electronic device, wherein the second pulse width modulating signal controls the brightness of the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.