Method of driving touch panel
AssigneeDongbu HiTek Co., Ltd.
InventorYong In Han
Life of this patent
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Abstract
Disclosed herein is a method of driving a touch panel having driving lines, sensing lines, and node capacitors between neighboring driving lines and sensing lines. The method includes pairing two neighboring driving lines, setting the pairs such that each of the pairs is driven using driving signals having an opposite phase, shuffling positions of the pairs so that at least one set of neighboring pairs includes different driving lines, classifying or combining at least two shuffled pairs into one group, generating Hadamard codes based on the pairs in each group, and simultaneously driving the driving lines in each of the generated Hadamard codes.
Claims20
A method of driving a touch panel having driving lines, sensing lines, and node capacitors between neighboring driving lines and sensing lines, the method comprising:
- pairing neighboring driving lines to form a plurality of pairs such that each of the plurality of pairs is driven using driving signals having an opposite phase;
- shuffling positions of the plurality of pairs so that at least two neighboring pairs include different driving lines;
- classifying or combining at least two shuffled pairs into a first group;
- generating Hadamard codes based on the pairs in each group, including the first group;
- and
- simultaneously driving the driving lines in each of the generated Hadamard codes.
A method of driving a touch panel having first to ith driving lines, i being a natural number >1, sensing lines, and node capacitors between neighboring driving lines and sensing lines, in which 2k+1 driving lines (k being a natural number ≧1) are simultaneously driven, the method comprising:
- pairing neighboring driving lines among first to ith driving lines to form first to mth sequential pairs, m being a natural number >1;
- setting the first to mth pairs such that each of the first to mth pairs is driven using driving signals having an opposite phase;
- shuffling positions of the first to mth pairs so that at least one set of two neighboring pairs includes different driving lines;
- selecting and classifying or combining at least two pairs including different driving lines into a first group;
- generating k-dimensional Hadamard codes by Hadamard coding, based on the at least two pairs in each group;
- and
- simultaneously driving the driving lines in each of the k-dimensional Hadamard codes.
A method of driving a touch panel having first to ith driving lines, i being a natural number >1, sensing lines, and node capacitors between neighboring driving lines and sensing lines, in which 2k+1 driving lines (k being a natural number ≧1) are simultaneously driven, the method comprising:
- pairing neighboring driving lines among the first to ith driving lines, and setting the pairs such that each of the pairs is driven using driving signals having an opposite phase;
- grouping the pairs and shuffling the pairs so that the pairs in each group include different driving lines;
- selecting and classifying or combining at least two pairs in each group into one or more sub-groups;
- selecting at least two pairs among the pairs in each sub-group, and generating k-dimensional Hadamard codes by Hadamard coding the selected pairs;
- and
- simultaneously driving the driving lines in each of the k-dimensional Hadamard codes.
Dependencies are inferred from the claim text.