Dynamic backlight control for spatially independent display regions
US9412336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2013 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Feb 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the disclosure describe a tileable display panel including a screen layer to display a unified image, an illumination layer including a two-dimensional array of lamps, and a display layer disposed between the screen layer and illumination layer. The display layer includes a plurality of pixelets each positioned to be illuminated by a corresponding lamp from the illumination layer to project a magnified image sub-portion corresponding to a received subset. The magnified image sub-portions collectively blend together to form the unified image displayed on the screen layer. Embodiments of the disclosure further include illumination layer control logic to determine a brightness value of each of the received subsets of pixel data, and adjust an illumination setting to reduce or increase an illumination output of a lamp in the illumination layer based, at least on part, on the brightness values of the corresponding subset of pixel data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.