Touch driving circuit, touch display device, and pen data recognition method by touch circuit
AssigneeLG Display Co., Ltd.
InventorJuneGun CHUNG
Life of this patent
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Abstract
The present disclosure provides a touch driving circuit, a touch display device, and a pen data recognition method by a touch circuit, and the touch circuit supplies a touch driving signal to two or more touch electrodes from among the plurality of touch electrodes in a pen data mode, generates sensing data for recognizing pen data which is transmitted from an active pen via the two or more touch electrodes in response to the touch driving signal, and performs range conversion and merger of two or more pieces of sensing data generated by detecting the pen data of same bit value, so as to generate summation sensing data.
Claims16
A touch display device, comprising:
- a touch panel on which a plurality of touch electrodes are disposed;
- and
- a touch circuit supplying a touch driving signal to two or more touch electrodes among the plurality of touch electrodes in a pen data mode, generating sensing data for recognizing pen data which is transmitted from an active pen via the two or more touch electrodes in response to the touch driving signal, and performing range conversion and merger of two or more pieces of sensing data generated by detecting the pen data of a same bit value, so as to generate summation sensing data,
- wherein the number of bits of the summation sensing data is less than or equal to the number of bits of each piece of sensing data in the two or more pieces of sensing data.
A touch driving circuit, comprising:
- a sensing converter supplying a touch driving signal to two or more touch electrodes among a plurality of touch electrodes in a pen data mode, and generating sensing data for recognizing pen data transmitted from an active pen via the two or more touch electrodes in response to the touch driving signal;
- and
- a timing generator controlling the sensing converter, and generating summation sensing data by processing and merging two or more pieces of sensing data generated by detecting the pen data of a same bit value,
- wherein the number of bits of the summation sensing data is less than or equal to the number of bits of each piece of sensing data in the two or more pieces of sensing data.
A method of recognizing pen data by a touch circuit, comprising:
- supplying a touch driving signal to two or more touch electrodes among a plurality of touch electrodes in a pen data mode, and performing driving;
- generating sensing data for recognizing pen data transmitted from an active pen via the two or more touch electrodes in response to the touch driving signal;
- generating summation sensing data by performing range-conversion and merger of two or more pieces of sensing data generated by detecting the pen data of a same bit value;
- and
- determining each bit value of the pen data, based on the summation sensing data,
- wherein the number of bits of the summation sensing data is less than or equal to the number of bits of each piece of sensing data in the two or more pieces of sensing data.
Dependencies are inferred from the claim text.