Abstract:
A touch sensing device may include a touch sensor array including at least one beacon driving section and at least one compensation section, the at least one beacon driving section including a plurality of first touch electrodes, and the at least one compensation section including a plurality of second touch electrodes; and a touch controller connected to the touch sensor array through at least one first driving channel and at least one second driving channel, the touch controller is configured to, during a first uplink period for communication with an active pen, provide at least one beacon signal to the at least one first driving channel, and provide at least one compensation signal to the at least one second driving channel, the at least one compensation signal being an inverse of the at least one beacon signal.
Abstract:
A touch sensing device may include a touch sensor array including at least one beacon driving section and at least one compensation section, the at least one beacon driving section including a plurality of first touch electrodes, and the at least one compensation section including a plurality of second touch electrodes; and a touch controller connected to the touch sensor array through at least one first driving channel and at least one second driving channel, the touch controller is configured to, during a first uplink period for communication with an active pen, provide at least one beacon signal to the at least one first driving channel, and provide at least one compensation signal to the at least one second driving channel, the at least one compensation signal being an inverse of the at least one beacon signal.
Abstract:
A touch controller for driving a touch screen including a touch sensing array and a fingerprint sensing array, the touch controller including a processor configured to: generate first touch data from a first input, on a touch sensing area of the touch screen, sensed by the touch sensing array; generate second touch data from a second input, on a fingerprint sensing area of the touch screen, sensed by at least one of the touch sensing array and the fingerprint sensing array; and compensate the second touch data by adjusting touch values included therein to generate compensated second touch data, wherein the first touch data, the second touch data and the compensated second touch data are used to calculate coordinates of the first input and the second input on the touch screen, and the fingerprint sensing array receives a third input on the fingerprint sensing area to generate fingerprint data.
Abstract:
A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.
Abstract:
A touch screen panel is provided. The touch screen panel includes: a sensing area comprising a plurality of first electrodes arranged in a matrix form in first and second directions of a substrate and a plurality of second electrodes extending in the first direction, the plurality of second electrodes being arranged alternately with the plurality of first electrodes in the second direction; a channel wiring area including a plurality of channel wires configured to transmit signals of the plurality of first electrodes and signals of the plurality of second electrodes, the channel wiring area being disposed around the sensing area; and an electrode wiring area comprising a plurality of electrode wires connecting the plurality of first electrodes and the plurality of second electrodes to the plurality of channel wires, the electrode wiring area being in the sensing area, wherein at least two electrodes, from among the first electrodes, that are disposed in a same column are connected to different channel wires.
Abstract:
A method for driving a touch sensor controller is provided. The method includes receiving touch data from a touch sensor panel and performing interpolation on the received touch data using characterization parameters according to a size and location of a conductor to increase a number of touch data points.
Abstract:
A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.
Abstract:
A touch screen driving circuit for driving a touch screen which includes a display layer and a touch sensor layer on the display layer is provided. The touch screen driving circuit includes: a touch controller configured to provide a plurality of drive signals respectively to a plurality of first electrodes of the touch sensor layer, in a driving period, wherein the plurality of drive signals are phase synchronized during a first sub-period of the driving period; and a display driving circuit configured to provide a compensation signal to at least some of a plurality of source lines of the display layer in the first sub-period of the driving period, wherein the plurality of compensation signals are phase synchronized opposite to the plurality of drive signals in the first sub-period.