Patent ID: 8766904

Claim:
In a liquid crystal display (LCD) controller, a method for controlling a backlight and a LCD panel comprising a plurality of pixels, the method comprising: receiving image data comprising a plurality of frames; determining, using at least the received image data, a lighting level for each of a plurality of zones in the backlight wherein each zone includes one or more light-emitting diodes (LEDs); driving each of the plurality of zones according to its determined lighting level; estimating an amount of light from the backlight reaching each of a plurality of grid points, wherein the number of grid points is greater than the number of zones and less than a number of the plurality of pixels, and wherein the estimation at a grid point is calculated based on light received at the grid point from more than one of the plurality of zones, and wherein at least one zone has a first lighting level at a first time during the frame and a second lighting level at a second time during the frame; determining a pixel setting for each of the plurality of pixels in the LCD panel based upon the estimated amount of light reaching a corresponding one or more grid points; and configuring the LCD panel with the pixel settings to display an image associated with the image data.