Patent ID: 7777708
Filing Date: 2010-08-17
Classification: G09G

Abstract:
1. A method for reducing cross-talk on a liquid crystal display, comprising the steps of: mapping pixel data of a primary image to pixel data of a secondary image, the primary and secondary images each comprising a plurality of pixels defined by the respective pixel data, the pixel data comprising intensity values for each said pixel, a range of the intensity values of the pixels of the secondary image being smaller than a range of the intensity values of the pixels of the primary image; identifying lines in the secondary image disposed to create cross-talk, the line identifying comprising, for each said line in the secondary image, determining a black content of said line, and comparing the determined black content against a predetermined threshold; and adjusting the intensity values of the pixels in the identified lines such that a display image rendered on a liquid crystal display resulting from the pixel intensity adjusting has less cross-talk than if rendered from the pixel data of the primary image, the pixel intensity adjusting comprising applying a respective scale factor to the intensity value of each said pixel in each said identified line, the scale factor being a minimum adjustment value for the pixels least prone to cross-talk, a maximum adjustment value for the pixels most prone to cross-talk, and otherwise a variable adjustment between the minimum adjustment value and the maximum adjustment value determined based on the intensity value of the respective pixel.