Rgb led touch panel and drive sense circuit
AssigneeSigmasense, LLC.
InventorsDaniel Keith Van Ostrand, Gerald Dale Morrison, Richard Stuart Seger, Jr., Timothy W. Markison
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AssigneeSigmasense, LLC.
InventorsDaniel Keith Van Ostrand, Gerald Dale Morrison, Richard Stuart Seger, Jr., Timothy W. Markison
Estimating the term…
A drive-sense module for an RGB light emitting diode (LED) touch-sense panel includes light emitting diodes (LEDs) configured to emit light of different wavelengths and light blocking spacers configured to block light horizontal light detection between LEDs. The drive-sense module includes a plurality of LED touch sensors and a plurality of difference detection circuits, each LED touch sensor is coupled to one of the plurality of LEDs and configured to generate a signal representative of light detected by the LED in the first mode and a signal representative of light emitted by the LED in the second mode. A drive-sense circuit (DSC) is configured to forward bias the LED in the transmit mode and reverse bias the LED in the receive mode and a data output circuit is configured to generate a digital representation of light intensity of the current that is generated by the DSC.
A touch display apparatus comprising:
A touch display apparatus comprising:
Dependencies are inferred from the claim text.