Light emitting diode switch device and array
First Claim
1. A combination light emitting diode and electrical switch device, comprising:
- at least one electroluminescent semiconductor element with a first electrode and a second electrode;
a first lead electrically connected to the first electrode of the electroluminescent semiconductor element;
a second lead electrically connected to the second electrode of the electroluminescent semiconductor element and connectible to a light emitting diode driver circuit;
a first touch sensor lead connectible to an input port of a touch input controller;
a first touch sensor contact electrically connected to the first touch sensor lead, the first touch sensor contact being responsive to a capacitance change thereof from a touch input; and
a case encapsulating the electroluminescent semiconductor element and the first touch sensor contact, light emitted from the at least one electroluminescent semiconductor element being at least partially unobstructed by the first touch sensor contact.
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Accused Products
Abstract
An LED switch device and a matrix thereof are disclosed. There is an electroluminescent semiconductor element with a first polarity contact and a second polarity contact. There is also a first polarity LED lead frame, to which the electroluminescent semiconductor element is mounted. The first polarity contact of the electroluminescent semiconductor element is electrically connected to the first polarity LED lead frame. The LED switch device has a second polarity LED lead frame electrically connected to the second polarity contact of the electroluminescent semiconductor element. The LED switch device also has a touch sensor lead frame that is electrically connected to a touch sensor lead.
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Citations
26 Claims
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1. A combination light emitting diode and electrical switch device, comprising:
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at least one electroluminescent semiconductor element with a first electrode and a second electrode; a first lead electrically connected to the first electrode of the electroluminescent semiconductor element; a second lead electrically connected to the second electrode of the electroluminescent semiconductor element and connectible to a light emitting diode driver circuit; a first touch sensor lead connectible to an input port of a touch input controller; a first touch sensor contact electrically connected to the first touch sensor lead, the first touch sensor contact being responsive to a capacitance change thereof from a touch input; and a case encapsulating the electroluminescent semiconductor element and the first touch sensor contact, light emitted from the at least one electroluminescent semiconductor element being at least partially unobstructed by the first touch sensor contact. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A surface mount device (SMD) package light emitting diode switch device, comprising:
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an SMD package carrier with an open top and an interior defined by a plurality of sidewalls and an interior floor opposed to the open top; a plurality of leads extending outwardly from the SMD package carrier; a first lead frame in electrical communication with a first one of the plurality of leads and extending in the interior of the SMD package carrier; a second lead frame in electrical communication with a second one of the plurality of leads and extending in the interior of the SMD package carrier; a first electroluminescent semiconductor element with a first electrode and a second electrode, the first electroluminescent semiconductor element being mounted on the first lead frame with the first electrode being electrically connected thereto, and the second electrode being electrically connected to the second lead frame; a first touch sensor lead frame electrically connected to a third one of the plurality of leads and extending in the interior of the SMD package carrier; a first touch sensor contact electrically connected to the first touch sensor lead frame, the first touch sensor contact being positioned at least partially inside the SMD package carrier; and an at least partially translucent case enclosing the open top of the SMD package carrier, the electroluminescent semiconductor element being unexposed on an outer surface of the case. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A combination light emitting diode and electrical switch device, comprising:
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at least one electroluminescent semiconductor element with a first electrode and a second electrode; a first conductive element electrically connected to the first electrode of the electroluminescent semiconductor element; a second conductive element electrically connected to the second electrode of the electroluminescent semiconductor element; a first touch sensor conductive element; a first touch sensor contact electrically connected to the first touch sensor conductive element, the first touch sensor contact being responsive to a capacitance change thereof from a touch input; a touch input controller integrated circuit with an input port that is in electrical communication with the first touch sensor contact over a first one of the at least one touch input transmission line connected to the first touch sensor conductive element, the capacitance change of the first touch sensor contact being passed to the input port of the touch input controller integrated circuit over the touch input transmission line; a printed circuit board on which the touch input controller integrated circuit is mounted; and a case encapsulating the electroluminescent semiconductor element, the first touch sensor contact, and the printed circuit board, light emitted from the at least one electroluminescent semiconductor element being at least partially unobstructed by the first touch sensor contact. - View Dependent Claims (17, 18, 19)
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20. A combination input and output device, comprising:
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a light emitting diode driver integrated circuit including a plurality of output lines; a touch input controller integrated circuit including a plurality of input lines; and an array of light emitting diode switch devices, each device including; at least one electroluminescent semiconductor element with a first electrode and a second electrode; and a touch sensor contact responsive to a capacitance change thereof from a touch input; a printed circuit board on which the touch input controller integrated circuit, the light emitting diode driver integrated circuit, and each of the light emitting diode switch devices of the array are mounted, the printed circuit board including a first set of traces each connected to the first electrode of each of the light emitting diode switch devices in the array to a respective one of the plurality of output lines of the light emitting diode driver integrated circuit, and a second set of traces each connected to the second electrode of each of the light emitting diode switches in the array to ground, a third set of traces each connected to the touch sensor contact of each of the light emitting diode switch devices in the array to a respective one of the plurality of input lines of the touch input controller integrated circuit; and a case encapsulating the array of light emitting diode switch devices. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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Specification