Eliminating interconnect induced inaccuracies and reducing scan time using a high granularity resistive touch screen

A mobile platform comprising:

• a resistive touch screen apparatus comprising:
• at least two independent ITO track matrixes disposed over different portions of a common display, each comprising a plurality of vertical tracks and a plurality of horizontal tracks;
• at least one integrated circuit disposed on a first vertical edge of the resistive touch screen apparatus, the at least one integrated circuit in data communication with the plurality of horizontal tracks of a first ITO track matrix;
• at least one integrated circuit disposed on a second vertical edge of the resistive touch screen apparatus, the at least one integrated circuit in data communication with the plurality of horizontal tracks of a second ITO track matrix;
• at least two integrated circuits disposed on a first horizontal edge of the resistive touch screen apparatus, a first integrated circuit in data communication with the plurality of vertical tracks of the first independent ITO track matrix and a second integrated circuit in data communication with the plurality of vertical tracks of the second independent ITO track matrix;
• and
• a controller in data communication with each of the integrated circuits,
• wherein:
• the first integrated circuit on the first horizontal edge and the at least one integrated circuit disposed on the first vertical edge are configured to resolve one or more electrical contacts between a plurality of horizontal tracks and vertical tracks of the first independent ITO matrix solely through a digital scan process;
• the second integrated circuit on the first horizontal edge and the at least one integrated circuit disposed on the second vertical edge are configured to resolve one or more electrical contacts between a plurality of horizontal tracks and vertical tracks of the second independent ITO matrix solely through a digital scan process;
• and
• the controller is configured to:
• identify a first, second, and third simultaneous, independent touch event;
• and
• characterize one or more of the independent ITO track matrices as faulty based on the identification of the third touch event.

A computer system comprising:

• a resistive touch screen comprising:
• at least two independent ITO track matrixes disposed over different portions of a common display, each comprising a plurality of vertical tracks and a plurality of horizontal tracks;
• at least one integrated circuit disposed on a first vertical edge of the resistive touch screen apparatus, the at least one integrated circuit in data communication with the plurality of horizontal tracks of a first ITO track matrix;
• at least one integrated circuit disposed on a second vertical edge of the resistive touch screen apparatus, the at least one integrated circuit in data communication with the plurality of horizontal tracks of a second ITO track matrix;
• at least two integrated circuits disposed on a first horizontal edge of the resistive touch screen apparatus, a first integrated circuit in data communication with the plurality of vertical tracks of the first independent ITO track matrix and a second integrated circuit in data communication with the plurality of vertical tracks of the second independent ITO track matrix;
• and
• at least one processor in data communication with the integrated circuits and a memory storing processor executable code for configuring the at least one processor to:
• receive one or more digital electrical signals generated via one or more electrical contacts between vertical tracks and horizontal tracks;
• resolve the digital electrical signals into a first, second, and third simultaneous, independent touch event on the resistive touch screen;
• and
• characterize one or more of the independent ITO track matrices as faulty based on the identification of the third touch event,
• wherein:
• the first integrated circuit on the first horizontal edge and the at least one integrated circuit disposed on the first vertical edge are configured to resolve one or more electrical contacts between a plurality of horizontal tracks and vertical tracks of the first independent ITO matrix solely through a digital scan process;
• and
• the second integrated circuit on the first horizontal edge and the at least one integrated circuit disposed on the second vertical edge are configured to resolve one or more electrical contacts between a plurality of horizontal tracks and vertical tracks of the second independent ITO matrix solely through a digital scan process.