Capacitive in-cell touch-screen panel, touch-positioning method, and display device
AssigneeBoe Technology Group Co., Ltd.
InventorJiayang Zhao
Life of this patent
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Abstract
The present invention discloses a capacitive in-cell touch-screen panel, a touch-positioning method thereof, and a display device. At least one of the gate lines in a TFT array substrate is elected as a touch scanning line, and at least one of the data lines is elected as a touch sensing line; or contrarily, at least one of the data lines is elected as a touch scanning line, and at least one of the gate lines is elected as a touch sensing line, and in this way the function of the touch-screen panel is achieved. Because the gate lines and data lines in a TFT array substrate are used as touch scanning lines and touch sensing lines, there is no need to add additional wirings, and thus the aperture ratio of the TFT array substrate will not be reduced.
Claims12
A capacitive in-cell touch-screen panel, comprising:
- a thin film transistor (TFT) array substrate comprising data lines and gate lines;
- at least one of the gate lines is elected as a touch scanning line, and at least one of the data lines is elected as a touch sensing line;
- alternatively, at least one of the data lines is elected as a touch scanning line, and at least one of the gate lines is elected as a touch sensing line;
- wherein,
- the touch scanning line is used to transmit a touch scan signal;
- the touch sensing line is used to obtain a voltage signal which is formed through coupling with the touch scan signal via an inductive capacitor and output the voltage signal;
- the inductive capacitor is formed at a non-coplanar intersection between the touch scanning line and the touch sensing line.
Dependencies are inferred from the claim text.