Patent ID: 8773477

Claim:
A display, comprising: an array of light sources comprising a plurality of sets of the light sources; a zonal controller configured to energize at least one of the sets of light sources; and a modulating panel; wherein: each set of light sources are configured to produce a zonal illumination on the modulating panel and the modulating panel is configured to further modulate the zonal illuminations in a manner to produce a desired image; the zonal illuminations are based on image data and the further modulation of the zonal illuminations are based on a light field simulation of the zonal illuminations and the image data; the light field simulation comprises a summation of individual zonal illuminations' effect on pixels of the modulating panel; and the light field simulation comprises an output tristimulus value for each pixel vector r, comprising: [ X ⁡ ( r ) Y ⁡ ( r ) Z ⁡ ( r ) ] = ∑ j ⁢ ( [ P ] j · PSF ⁡ ( r - r j ) · x j · [ P R ⁡ ( r ) P G ⁡ ( r ) P B ⁡ ( r ) ] ) + ∑ j ⁢ ( [ X Y Z ] j , m ⁢ ⁢ i ⁢ ⁢ n · PSF ⁡ ( r - r j ) · x j ) ( 1 ) where: X(r), Y(r), and Z(r) comprise tri-stimulus values target outputs in front of the display at a particular pixel position vector r; PSF(r−r j ) comprises a point spread function representing light from a j th LED centered at pixel position r j shining through a pixel at position r; x j comprises a representation of a desired light output from the j th LED; [P] j comprises a tristimulus calibration matrix for the jth LED comprising light from a particular tristimulus primary LED through a particular color LCD filter; [X Y Z] j,min comprises a representation of light leakage through the LCD while turned off due to j th LED at r j shining through a pixel at position r; and P R (r), P G (r), P B (r) comprise linear color LCD drive values that energize pixels on the LCD panel; and wherein the linear LCD drive values comprise: [ P R ⁡ ( r ) P G ⁡ ( r ) P B ⁡ ( r ) ] = [ T ] - 1 ⁢ ( [ X ⁡ ( r ) Y ⁡ ( r ) Z ⁡ ( r ) ] - ∑ j ⁢ ( [ X Y Z ] j , min · PSF ⁡ ( r - r j ) · x j ) ) ⁢ ⁢ where ⁢ [ T ] = ∑ j ⁢ [ P j ] · PSF ⁡ ( r - r j ) · x j . ( 2 )