Noise-cancelling integrated touch screen and display panel and drive method thereof
First Claim
1. A method for driving an In-cell touch screen, wherein the In-cell touch screen comprises an array substrate and a color film substrate disposed opposite to each other, the color film substrate comprises a plurality of drive lines and a plurality of sensing lines intersecting with the plurality of drive lines in an insulating way, the array substrate comprises a plurality of gate lines and a plurality of data lines intersecting with the plurality of gate lines in an insulating way, each of the sensing lines is parallel to the gate lines and covers multiple gate lines, the method comprising:
- concurrently providing a plurality of gate drive signals to the plurality of gate lines line by line and a plurality of touch drive signals to the plurality of drive lines line by line;
collecting original touch signals from the plurality of sensing lines line by line;
wherein collecting is performed on a sensing line and any of the gate lines covered by the sensing line is supplied with a gate drive signal;
defining the original touch signals collected from the sensing line as interference signals; and
removing the interference signals from the original touch signals to obtain a valid touch signal.
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Accused Products
Abstract
An In-cell touch screen and a method for driving the same includes: concurrently providing a plurality of gate drive signals to the plurality of gate lines line by line and a plurality of touch drive signals to the plurality of drive lines line by line, collecting original touch signals from the plurality of sensing lines line by line; when collecting is performed on a sensing line and any gate line covered by the sensing line is supplied with a gate drive signal, defining the original touch signals collected from a sensing line as interference signals; and removing the interference signals from the original touch signals to obtain a valid touch signal.
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Citations
20 Claims
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1. A method for driving an In-cell touch screen, wherein the In-cell touch screen comprises an array substrate and a color film substrate disposed opposite to each other, the color film substrate comprises a plurality of drive lines and a plurality of sensing lines intersecting with the plurality of drive lines in an insulating way, the array substrate comprises a plurality of gate lines and a plurality of data lines intersecting with the plurality of gate lines in an insulating way, each of the sensing lines is parallel to the gate lines and covers multiple gate lines, the method comprising:
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concurrently providing a plurality of gate drive signals to the plurality of gate lines line by line and a plurality of touch drive signals to the plurality of drive lines line by line; collecting original touch signals from the plurality of sensing lines line by line;
wherein collecting is performed on a sensing line and any of the gate lines covered by the sensing line is supplied with a gate drive signal;defining the original touch signals collected from the sensing line as interference signals; and removing the interference signals from the original touch signals to obtain a valid touch signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An In-cell touch screen, comprising an array substrate, a color film substrate disposed opposite to the array substrate, and a drive device, wherein the color film substrate comprises a plurality of drive lines and a plurality of sensing lines intersecting with each other and insulated from each other;
- the array substrate comprises a plurality of gate lines and a plurality of data lines intersecting with each other and insulated from each other, each of the sensing lines is parallel to the gate lines and covers multiple gate lines;
the drive device comprises a display drive circuit and a touch drive circuit, the display drive circuit provides gate drive signals to the plurality of gate lines line by line, at the same time, the touch drive circuit provides touch drive signals to the plurality of drive lines line by line, and original touch signals are collected from the plurality of sensing lines line by line;
when collecting is performed on the sensing line and any of the gate lines covered by the sensing line is supplied with a gate drive signal, the original touch signals collected from one sensing line are defined as interference signals; and
the touch drive circuit removes the interference signals from the original touch signals to obtain valid touch signals. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- the array substrate comprises a plurality of gate lines and a plurality of data lines intersecting with each other and insulated from each other, each of the sensing lines is parallel to the gate lines and covers multiple gate lines;
Specification