Devices and methods for controlling both LED and touch sense elements via a single IC package pin
First Claim
1. A method comprising:
- controlling at least one light emitting diode (LED) element via a single input/output pin of a controller, the single input/output pin coupled to the at least one LED element; and
controlling at least one touch sense element via the single input/output pin of the controller, the single input/output pin coupled to the at least one touch sense element.
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Accused Products
Abstract
Devices and methods for minimizing a number of I/O pins needed to control LED and touch sense operations are described and disclosed herein. In an embodiment, a method comprises controlling at least one light emitting diode (LED) element via a single pin, and controlling at least one touch sense element via the single pin. In an embodiment, a touch-sensitive light emitting diode (LED) display device comprises at least one LED element, at least one touch sense element, and a controller integrated in an integrated circuit (IC) and coupled to the at least one LED element and the at least one touch sense element via a single pin. The controller is configured to communicate via the pin with the at least one LED element and the at least one touch sense element.
17 Citations
25 Claims
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1. A method comprising:
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controlling at least one light emitting diode (LED) element via a single input/output pin of a controller, the single input/output pin coupled to the at least one LED element; and controlling at least one touch sense element via the single input/output pin of the controller, the single input/output pin coupled to the at least one touch sense element. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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sequentially controlling at least one light emitting diode (LED) element of each of N LED element arrangements via a single input/output pin of a controller coupled to the at least one LED element; and controlling at least one touch sense element via the single input/output pin coupled to the at least one touch sense element. - View Dependent Claims (7, 8, 9, 10)
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11. A controller comprising:
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an input/output pin coupled to at least one light-emitting diode (LED) element and coupled to at least one touch sense element, wherein the controller is integrated in an integrated circuit (IC) and configured to communicate via the input/output pin with the at least one LED element and the at least one touch sense element to control a touch-sensitive LED display device. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A touch-sensitive light emitting diode (LED) display device, comprising:
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at least one LED matrix including a plurality of LED elements arranged into N columns; at least one first touch sense element; a counter adapted to provide at least one indication of count values of a first count ranging from zero to N+1; a controller integrated in an integrated circuit (IC) and coupled to the N columns of the LED matrix and the at least one first touch sense element via a first input/output pin and configured to, during a first time period based on a first N count values of the first count, sequentially communicate via the input/output pin with LED elements of each of the N columns and, during a second time period based on an N+1 count value of the first count, communicate via the input/output pin with the at least one first touch sense element. - View Dependent Claims (19, 20, 21)
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22. A touch-sensitive display device, comprising:
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display means for displaying at least one visual indication; detection means for detecting at least one touch-based command; and control means integrated in an integrated circuit (IC) and coupled to the display means and the detection means via a single input/output pin of the IC package for communicating with the display means via the input/output pin and for communicating with the detection means via the input/output pin. - View Dependent Claims (23, 24, 25)
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Specification