Patent ID: 11917734
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 7:
8. A system for driving light emitting diodes (LEDs) comprising:
a substrate including a plurality of scan lines substantially orthogonal to a virtual centerline of the substrate;
a first driver integrated circuit (IC) on a first side of the substrate, the first driver IC including:
a set of line switches coupled to a first set of the plurality of scan lines along a side of the first driver IC nearest the virtual centerline;
a data output; and
a register, via a digital core, configured to store scanning data to control activation of a sequence of the set of line switches, wherein the scanning data is configured to be programmed through a communications interface responsive to signals provided at a data input and a clock input;

a second driver IC on the first side of the substrate, the second driver IC including:
a set of line switches coupled to a second set of the plurality of scan lines along a side of the second IC nearest the virtual centerline; and
a data input coupled to the data output of the first driver IC; and

a matrix of light emitting diodes (LEDs) on the second side of the substrate, the matrix including rows and columns of LEDs, wherein each of the rows of LEDs of the matrix is coupled to a respective one of the plurality of scan lines,
wherein the first driver IC is configured to control the set of line switches of the second driver IC based on a scanning sequence of the plurality of scan line switches.