Method for driving a touch panel device
First Claim
Patent Images
1. A method for driving a touch panel comprising:
- sequentially inputting coordinate values of touched points on the touch panel at predetermined time intervals;
measuring a variation of the inputted coordinate values;
determining the inputted coordinate values as a double touch when the measured variation is greater than a predetermined value; and
compensating the inputted coordinate values if determined as a double touch.
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Abstract
A method for driving a touch panel that detects and compensates a double touch includes sequentially inputting coordinate values of touched points on the touch panel at predetermined time intervals, measuring a variation of the inputted coordinate values, determining the inputted coordinate values as a double touch when the measured variation is greater than a predetermined value, and compensating the inputted coordinate values if determined as a double touch.
21 Citations
11 Claims
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1. A method for driving a touch panel comprising:
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sequentially inputting coordinate values of touched points on the touch panel at predetermined time intervals;
measuring a variation of the inputted coordinate values;
determining the inputted coordinate values as a double touch when the measured variation is greater than a predetermined value; and
compensating the inputted coordinate values if determined as a double touch. - View Dependent Claims (2, 3)
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4. A method for driving a touch panel comprising:
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sequentially inputting coordinate values corresponding to at least two portions touched on the touch panel at predetermined time intervals;
measuring a variation of the inputted coordinate values;
determining the inputted coordinate values as a double touch if the measured variation is greater than a predetermined value; and
compensating the inputted coordinate values based on whether they are determined as a double touch. - View Dependent Claims (5, 6)
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7. A method for driving a touch panel comprising:
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sequentially inputting coordinate values corresponding to at least two portions touched on the touch panel at predetermined time intervals;
measuring a variation of the inputted coordinate values;
detecting whether the measured variation is greater than a predetermined value;
detecting whether the coordinate values were compensated previously;
compensating the inputted coordinate values when the measured variation is detected to be greater than the predetermined value, and when the coordinate values were not compensated previously;
compensating the inputted coordinate values when the measured variation is detected not to be greater than the predetermined value, and when the coordinate values were compensated previously;
recognizing the inputted coordinate values as substantial coordinate values when the measured variation is detected to be greater than the predetermined value, and when the coordinate values were compensated previously; and
recognizing the inputted coordinate values as the substantial coordinate values when the measured variation is detected to be less than the predetermined value, and when the coordinate values were not compensated previously. - View Dependent Claims (8, 9, 10, 11)
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Specification