Pixel combination of full color LED and white LED for use in LED video displays and signages
US10192477B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 8, 2015 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Dec 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal processing device and method for driving one or more light emitting diodes (“LEDs”) of a video screen, display panel, module or other component. The signal processing device and method can control one or more RGB LEDs and/or white LEDs to produce light with increased uniformity and brightness at a reduced cost and having reduced power consumption. The signal processing device and method can generate a matrix brightness value based on one or more input LED driving signals; generate a complementary brightness value based on the one or more input LED driving signals; generate an LED driving signal based on the matrix brightness value and complementary brightness value; and delaying the one or more input LED driving signals generate one or more delayed LED driving signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.