Touch Detection Method and Touch Detection Device and Touch Display Device
OwnerKuang-Feng Sunginventor
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Abstract
A touch detection method, for detecting touch events in a touch pad having a plurality of sense sequences arranged as a matrix, includes outputting a plurality of pulse signals to the plurality of sense sequences, detecting voltage differences between adjacent sense sequences of the plurality of sense sequences when receiving the plurality of pulse signals, to generate a plurality of detection results, and determining a status of an touch event according to the plurality of detection results.
Claims29
A touch detection method, for detecting touch events in a touch pad having a plurality of sense sequences arranged as a matrix, comprising:
- outputting a plurality of pulse signals to the plurality of sense sequences;
- detecting voltage differences between adjacent sense sequences of the plurality of sense sequences when receiving the plurality of pulse signals, to generate a plurality of detection results;
- and
- determining a status of an touch event according to the plurality of detection results.
A touch detection device, for detecting touch events in a touch pad having a plurality of sense sequences arranged as a matrix, comprising:
- a signal output module, for outputting a plurality of pulse signals to the plurality of sense sequences;
- a voltage-difference detection module, for detecting voltage differences between adjacent sense sequences of the plurality of sense sequences when receiving the plurality of pulse signals, to generate a plurality of detection results;
- and
- a determination module, for determining a status of an touch event according to the plurality of detection results.
A touch display device having display and touch functions, comprising:
- a liquid crystal display panel, comprising a plurality of pixel units and a plurality of wires arranged as a matrix, each pixel unit formed at an intersection of two orthogonal wires;
- an image driving module, for outputting a plurality of control signals and a plurality of image data signals to the plurality of wires according to an image data, to drive the plurality of pixel units to display images;
- and
- a touch detection device, coupled to the plurality of wires, for determining a status of an touch event according to capacitance variation of the plurality of wires.
Dependencies are inferred from the claim text.