Patent ID: 7532192

Claim:
A method for displaying an image on a liquid crystal display having an LED array, an LCD array, and a diffusion layer over said LED array said LED array having a lower resolution than said LCD array, said method comprising: (a) receiving said image with a controller integral with the display; (b) modifying said image by (i) reducing high frequency aspects of said image; (ii) reducing the resolution of said image by subsampling said image at the resolution of said LED array and after said high frequency aspects of said image have been reduced; and (iii) convolving the subsampled said image with a point spread function of said LED array and said diffusion layer of said display; (c) selecting illumination levels for each of a respective plurality of regions of a spatial two-dimensional array of light emitting elements, illumination levels of each region of said plurality of regions selected independently of each other, and selected based on an amount by which said image is modified in step (b) measured over a plurality of pixels corresponding to the respective said region for which said illumination level is being selected; (d) using said image to modulate liquid crystal material within said display.