Patent ID: 7505034
Filing Date: 2009-03-17
Classification: G09G

Abstract:
1. A method for reducing display power consumption, comprising: identifying a plurality of areas of interest that includes information displayed on a liquid crystal display (LCD) comprising a plurality of pixels, wherein part or all of the pixels not associated with the areas of interest comprise LCD pixels that normally produce a first color, wherein the LCD pixels that normally produce the first color are LCD pixels comprising sub-pixels, wherein minimal voltages supplied to the sub-pixels produce the first color and consume minimal power, and wherein the areas of interest includes areas associated with a plurality of non-overlapping applications identified as applications of interest; and causing at least one pixel on the LCD not associated with the areas of interest to be in a second color close to the first color so as to consume close to the minimum power of the LCD pixels that normally produce the first color, and wherein voltages supplied to sub-pixels associated with pixels in the areas of interest are not changed, and wherein causing the at least one pixel not associated with the areas of interest to be in the second color that consumes less power than an intended color includes adjusting voltages supplied to sub-pixels associated with the pixel.