Backlight system, display device including the backlight system and method of transferring data in the backlight system

A backlight included in a backlight system, comprising:

• a plurality of slave driving circuits and a plurality of light sources driven by the plurality of slave driving circuits, wherein the plurality of slave driving circuits are arranged in a matrix of driving rows and driving columns such that first through m-th slave driving circuits, where m is a positive integer greater than one, are arranged in each driving row of the driving rows, and the first through m-th slave driving circuits are connected in a daisy chain structure,
• wherein a master driving circuit included in the backlight system is configured to generate a plurality of input data signals, wherein each input data signal of the plurality of input data signals corresponds to the each driving row, and the each input data signal includes first through m-th packets including luminance data corresponding to the first through m-th slave driving circuits,
• wherein each packet of the first through m-th packets includes a virtual identifier, and
• wherein the virtual identifier is sequentially decreased or sequentially increased as the each packet passes through the daisy chain structure.

A backlight system comprising:

• a backlight including a plurality of slave driving circuits and a plurality of light sources driven by the plurality of slave driving circuits, wherein the plurality of slave driving circuits are arranged in a matrix of driving rows and driving columns such that first through m-th slave driving circuits, where m is a positive integer greater than one, are arranged in each driving row of the driving rows, and the first through m-th slave driving circuits are connected in a daisy chain structure;
• and
• a master driving circuit configured to generate a plurality of input data signals, wherein each input data signal of the plurality of input data signals corresponds to the each driving row, and the each input data signal includes first through m-th packets including luminance data corresponding to the first through m-th slave driving circuits,
• wherein the master driving circuit is further configured to generate the each input data signal such that the first through m-th packets include first through m-th virtual identifiers, respectively, and values of the first through m-th virtual identifiers are sequentially decreased by one,
• wherein each slave driving circuit of the first through m-th slave driving circuits is configured to decrease, by one, a value of a virtual identifier of a reception packet transferred from a latter stage slave driving circuit to transfer a transmission packet including the virtual identifier having the decreased value to a former stage slave driving circuit, and
• wherein the each slave driving circuit of the first through m-th slave driving circuits is further configured to compare the value of the virtual identifier of the reception packet with a fixed address that is set to be zero, and store the luminance data included in the reception packet when the value of the virtual identifier of the reception packet is identical to the fixed address.