Cross-talk correction for a liquid crystal display

A handheld computing device comprising:

• a liquid crystal display;
• and
• a display processor coupled to the liquid crystal display, the display processor including:
• pixel mapping means for mapping pixel data defining a primary image to a secondary image, the primary and secondary images comprising a plurality of pixels, each said pixel having an associated intensity value, the intensity values of the pixels in the secondary image occupying a smaller intensity range than in the primary image;
• identifying means for identifying lines in the secondary image disposed to create cross-talk;
• scaling means for applying a scale factor to the intensity value of the pixels in the identified lines;
• and
• imaging means for rendering the secondary image on the liquid crystal display, the scale factor being selected to effect a reduction in cross-talk in the rendered image relative to the primary image.

A computer-readable medium carrying processing instructions for a computing device which, when executed, cause the computing device to implement a method for reducing cross-talk on a liquid crystal display, the method comprising the steps of:

• converting primary pixel data defining a primary image into secondary pixel data defining a secondary image, the primary and secondary images comprising a plurality of pixels, each said pixel having an associated intensity value in the respective pixel data, the intensity values of the pixels in the secondary pixel data having a smaller intensity range than the pixels in the primary pixel data;
• identifying lines in the secondary image disposed to create cross-talk;
• and
• applying a scale factor to the intensity values in the secondary pixel data associated with the pixels in the identified lines, the scale factor being selected such that the secondary image, when rendered on a liquid crystal display from the secondary pixel data, has less cross-talk than the primary image when so rendered from the primary pixel data.