Touch sensitive display device, and driving method thereof
First Claim
1. A driving method of a display device, comprising:
- reading sense data signals of a first sensing unit row, the sense data signals being sequentially input;
determining whether the sense data signals are included in a contactable range;
converting the sense data signals into preliminary signals, each of which has a predetermined value based on whether the sense data signals are included in the contactable range;
determining whether an X axis sensed area exists using the preliminary signals;
determining whether the X axis sensed area is effective when the X axis sensed area exists;
determining whether a Y axis sensed area exists when the X axis sensed area is effective;
determining whether the Y axis sensed area is effective when the Y axis sensed area exists;
determining a contact position when the X axis sensed area is effective.reading sense data signals of a second sensing unit row when the X axis sensed area or the Y axis sensed area is not effective.
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Accused Products
Abstract
A display device having a contact sensing function, and a driving method thereof are disclosed in one embodiment. The driving method of a display device includes reading sense data signals of a current sensing unit row, determining whether the sense data signals are included in a contactable range and converting the sense data signals into preliminary signals that each have a predetermined value based on the determination result, determining whether a sensed area (an X axis sensed area) in an X axis direction exists using the preliminary signals, determining whether the X axis sensed area is effective when the X axis sensed area exists, determining whether a sensed area (a Y axis sensed area) in a Y axis direction exists when the X axis sensed area is effective, determining whether the Y axis sensed area is effective when the Y axis sensed area exists, determining a contact position when the Y axis sensed area is effective, and reading sense data signals of a next sensing unit row when the X axis sensed area or the Y axis sensed area is not effective.
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Citations
19 Claims
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1. A driving method of a display device, comprising:
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reading sense data signals of a first sensing unit row, the sense data signals being sequentially input; determining whether the sense data signals are included in a contactable range; converting the sense data signals into preliminary signals, each of which has a predetermined value based on whether the sense data signals are included in the contactable range; determining whether an X axis sensed area exists using the preliminary signals; determining whether the X axis sensed area is effective when the X axis sensed area exists; determining whether a Y axis sensed area exists when the X axis sensed area is effective; determining whether the Y axis sensed area is effective when the Y axis sensed area exists; determining a contact position when the X axis sensed area is effective. reading sense data signals of a second sensing unit row when the X axis sensed area or the Y axis sensed area is not effective. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A display device, comprising:
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a display panel having a plurality of sensing units and a plurality of sense data lines connected to the sensing units; a sense signal processor connected to the display panel, the sense signal processor receiving analog sense data signals from the sense data lines, and converting the analog sense data signals to digital sense data signals; and a contact position determiner connected to the sense signal processor for determining a contact position based on the digital sense data signals, wherein the contact position determiner comprises; a processor reading the sense data signals of a first sensing unit row, the sense data signals being sequentially input, and determining whether the sense data signals are included in a contactable range to convert the sense data signals into preliminary signals; and an operator determining whether an X axis sensed area exists, determining whether the X axis sensed area is effective when the X axis sensed area exists, determining whether a Y axis sensed area exists when the X axis sensed area is effective, determining whether the Y axis sensed area is effective when the Y axis sensed area exists, determining a contact position when the Y axis sensed area is effective, and reading sense data signals of a second sensing unit row when the X axis sensed area or the Y axis sensed area is not effective. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification