Patent ID: 8581832
Filing Date: 2013-11-12
Classification: G09G

Abstract:
1. An illumination device comprising: a plurality of light sources; light sequencing circuitry coupled to the light sources; a light guide structure for directing light from the plurality of light sources over a surface of a display screen to be illuminated; and a user interface for providing control input to the light sequencing circuitry; wherein the light sequencing circuitry comprises: wherein at least a subset of the timing intervals comprise respective clock sample periods, and further wherein the logic state machine is configured to select a particular one of the plurality of available sequencing modes based at least in part on one or more user input events of a first type occurring within a given one of the clock sample periods, and to determine at least one operating parameter of the selected sequencing mode based at least in part on one or more user input events of a second type detected in at least one additional sample clock period subsequent to the given sample clock period.