Patent ID: 9336728
Filing Date: 2016-05-10
CPC Classification: G09G

Claim Text:
1. A backlight controller for a zoned backlight display, the backlight controller comprising: an input port configured to receive an input video signal, wherein the input video signal comprises frames, each frame of the input video signal containing a single set of pixel data representing a single image; and a zone brightness determination circuit coupled to the input port, the zone brightness determination circuit configured to determine target brightness values for at least one brightness zone of the zoned backlight display based on pixel data in each frame of the input video signal; a transient brightness compensation circuit coupled to the zone brightness determination circuit, the transient brightness compensation circuit configured to determine intermediate brightness values that transition from a first target brightness value of the target brightness values that correspond to a first frame of the input video signal to a second target brightness value of the target brightness values that corresponds to second frame of the input video signal, wherein a brightness output port coupled to the transient brightness compensation circuit, the transient brightness compensation circuit configured to provide the target brightness values and the intermediate brightness values to the at least one brightness zone of the zoned backlight display.