DISPLAY DEVICE AND DRIVING METHOD THEREOF
First Claim
1. A method of driving a display device, the method comprising:
- connecting a plurality of data lines, formed in a panel, to ground during a touch preparation period after a touch sensing period arrives until a plurality of sensing pulses are supplied to a plurality of driving electrodes; and
floating the plurality of data lines while the plurality of sensing pulses are supplied to the plurality of driving electrodes until the touch sensing period is ended after the touch preparation period.
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Accused Products
Abstract
Disclosed is a display device. The display device includes a panel into which a touch panel including a plurality of driving electrodes and a plurality of receiving electrodes is built, a touch sensing unit configured to supply a plurality of sensing pulses to the plurality of driving electrodes during a touch sensing period, a driver configured to drive the panel to allow the panel to display an image during an image display period, and a data line controller configured to connect a plurality of data lines to ground in a sensing pulse non-output period where the plurality of the sensing pulses are not supplied to the plurality of driving electrodes during the touch sensing period.
26 Citations
15 Claims
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1. A method of driving a display device, the method comprising:
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connecting a plurality of data lines, formed in a panel, to ground during a touch preparation period after a touch sensing period arrives until a plurality of sensing pulses are supplied to a plurality of driving electrodes; and floating the plurality of data lines while the plurality of sensing pulses are supplied to the plurality of driving electrodes until the touch sensing period is ended after the touch preparation period. - View Dependent Claims (2)
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3. A display device comprising:
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a panel into which a touch panel including a plurality of driving electrodes and a plurality of receiving electrodes is built; a touch sensing unit configured to supply a plurality of sensing pulses to the plurality of driving electrodes during a touch sensing period; a driver configured to drive the panel to allow the panel to display an image during an image display period; and a data line controller configured to connect a plurality of data lines to ground in a sensing pulse non-output period where the plurality of the sensing pulses are not supplied to the plurality of driving electrodes during the touch sensing period. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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11. A method for driving a display device, the method comprising:
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connecting a plurality of data lines of the display panel to a data driver to drive a display portion of the display device during a display period of a frame; and driving a touch sensor portion of the display device during a sense period of the frame, wherein driving the touch sensor comprises; connecting the plurality of data lines to ground during a preparation portion of the sense period; sequentially supplying a plurality of sensing pulses to a plurality of driving electrodes during a sensing portion of the sense period; and floating one or more of the plurality of data lines during the sensing portion of the sense period while sensing pulses are being supplied to at least one of the plurality of driving electrodes. - View Dependent Claims (12)
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13. A display device comprising:
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a display panel including a display portion and a touch portion, the display portion including a plurality of data lines, and the touch portion including a plurality of driving electrodes and a plurality of receiving electrodes; a data driver configured to drive the display portion of the display panel; a plurality of switches each of which is coupled to a corresponding one of the plurality of data lines; and a controller configured to control operation of the plurality of switches, wherein the controller controls the switches to; connect the plurality of data lines to the data driver during a display period of a frame; connect the plurality of data lines to ground during a preparation portion of a sense period of the frame; and float one or more of the plurality of data lines during a sensing portion of the sense period while a plurality of sensing pulses are supplied to at least one of the plurality of driving electrodes. - View Dependent Claims (14, 15)
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Specification