Patent ID: 8026927
Filing Date: 2011-09-27
Classification: G09G

Abstract:
1. A method for reducing mura defects in a display having a tone scale driven by respective input luminance code values to said display, said method comprising: (a) sequentially illuminating a plurality of pixels at each of a plurality of gray levels, each one of said plurality of gray levels corresponding to a respective input luminance code value to said display, and wherein said plurality of gray levels include less than all of the tone scale of said display, and wherein fewer gray levels at the lower range of said tone scale of said display are used in said step of sequentially illuminating than are used at the higher range of said tone scale; (b) capturing said display with an image sensing device external to said display at each one of the illuminated said gray levels; (c) determining corrective data for said pixels so as to reduce the mura effects of said display; (d) storing said corrective data in said display to process an image received by said display so as to reduce said mura effects.