Input sensing using a gate select line of a display device

摘要

Embodiments of the present invention generally provide an input device including a display device having an integrated capacitive sensing device. The input device includes a plurality of select line blocks, a plurality of gate low voltage lines, a gate high voltage line coupled to at least one select line included in at least one of the select line blocks, a plurality of transmitter electrodes, and a processing system coupled to the plurality gate low voltage lines and the plurality of transmitter electrodes. Each select line block includes a plurality of select lines. Each gate low voltage line is coupled to a different select line block. The processing system is configured to drive the plurality of transmitter electrodes for capacitive sensing, receive resulting signals from the plurality of gate low voltage lines, and determine positional information based on the resulting signals.

主权项

1. An input device comprising a display device having an integrated capacitive sensing device, the input device comprising:
a plurality of select line blocks, each select line block comprising a plurality of select lines; a plurality of gate low voltage lines, each gate low voltage line coupled to a different select line block; a gate high voltage line coupled to at least one select line included in at least one of the select line blocks; a plurality of transmitter electrodes; and a processing system coupled to the plurality gate low voltage lines and the plurality of transmitter electrodes, the processing system configured to:
drive the plurality of transmitter electrodes for capacitive sensing;receive resulting signals from the plurality of gate low voltage lines while the plurality of transmitter electrodes are being driven for capacitive sensing; and determine positional information based on the resulting signals, wherein the processing system is further configured to:switch a first select line included in a first select line block from a first gate low voltage line to the gate high voltage line to select a sub-pixel for display updating;drive a source line coupled to the sub-pixel to update the sub-pixel while the sub-pixel is selected; andbased on determining that the processing system is unable to receive resulting signals for capacitive sensing from the first select line, apply a compensation algorithm to the resulting signals.