Touch screen device, display device having the same, and method of driving the same based on accumulative folding number of a touch panel
First Claim
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1. A touch screen device, comprising:
- a touch panel including a plurality of driving lines extending in a first direction and a plurality of sensing lines extending in a second direction;
a touch driver to output a driving signal to the driving lines;
a touch sensing driver to receive a sensing signal from the sensing lines; and
a controller to determine a sensing parameter corresponding to an accumulative folding number of the touch panel, the accumulative folding number corresponding to the number of times the touch panel is folded, and to control at least one signal of the touch driver and the touch sensing driver based on the sensing parameter, wherein;
the controller calculates a resistance change value based on the accumulative folding number of the touch panel, derives the sensing parameter corresponding to the resistance change value, and generates a control signal for controlling the touch driver and the touch sensing driver based on the sensing parameter, anda voltage of the driving signal increases or a frequency of the driving signal decreases as the resistance change value increases.
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Abstract
A touch screen device includes a touch panel, a touch driver, a touch sensing driver, and a controller. The touch panel includes a plurality of driving lines extending in a first direction and a plurality of sensing lines extending in a second direction. The touch driver outputs a driving signal to the driving lines. The touch sensing driver receives a sensing signal from the sensing lines. The controller determines a sensing parameter corresponding to an accumulative folding number of the touch panel and controls the touch driver and the touch sensing driver based on the sensing parameter.
11 Citations
11 Claims
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1. A touch screen device, comprising:
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a touch panel including a plurality of driving lines extending in a first direction and a plurality of sensing lines extending in a second direction; a touch driver to output a driving signal to the driving lines; a touch sensing driver to receive a sensing signal from the sensing lines; and a controller to determine a sensing parameter corresponding to an accumulative folding number of the touch panel, the accumulative folding number corresponding to the number of times the touch panel is folded, and to control at least one signal of the touch driver and the touch sensing driver based on the sensing parameter, wherein; the controller calculates a resistance change value based on the accumulative folding number of the touch panel, derives the sensing parameter corresponding to the resistance change value, and generates a control signal for controlling the touch driver and the touch sensing driver based on the sensing parameter, and a voltage of the driving signal increases or a frequency of the driving signal decreases as the resistance change value increases. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display device, comprising:
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a display panel including a plurality of pixels; a touch panel bonded to one side of the display panel, the touch panel including a plurality of driving lines extending in a first direction and a plurality of sensing lines extending in a second direction; a scan driver to provide a scan signal to the pixels; a data driver to provide a data signal to the pixels; a touch driver to output a driving signal to the driving lines; a touch sensing driver to receive a sensing signal from the sensing lines; and a controller to determine a sensing parameter corresponding to an accumulative folding number of the touch panel, the accumulative folding number corresponding to the number of times the touch panel is folded, and to control at least one signal of the touch driver and the touch sensing driver based on the sensing parameter, wherein; the controller calculates a resistance change value based on the accumulative folding number of the touch panel, derives the sensing parameter corresponding to the resistance change value, and generates a control signal for controlling the touch driver and the touch sensing driver based on the sensing parameter, and a voltage of the driving signal increases or a frequency of the driving signal decreases as the resistance change value increases.
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8. A method for driving a touch screen device folded in at least one folding line, the method comprising:
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calculating a resistance change value based on an accumulative folding number of a touch panel, the accumulative folding number corresponding to the number of times the touch panel is folded; determining a sensing parameter corresponding to the resistance change value; generating a control signal to control at least one signal of a touch driver outputting a driving signal for driving the touch panel and a touch sensing driver receiving a sensing signal for sensing a touch of the touch panel based on the sensing parameter, wherein a voltage of the driving signal increases or a frequency of the driving signal decreases as the resistance change value increases. - View Dependent Claims (9, 10, 11)
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Specification