In-cell touch screen panel and display device
First Claim
1. An in-cell touch screen panel comprising an array substrate having a plurality of gate signal lines and a plurality of pixel units arranged in a matrix;
- whereinat least one gate signal line of the array substrate is used as a touch scanning line;
the array substrate has a touch readout line between adjacent colunms of pixel units;
the array substrate has a touch unit located in a region defined by the touch scanning line and the touch readout line;
the touch unit comprises a light sensing sub-unit, a touch electrode and a touch signal control sub-unit;
the light sensing sub-unit is connected with the touch signal control sub-unit through the touch electrode, a control signal output by the light sensing sub-unit to the touch signal control sub-unit varies with variation of external light and coupling capacitance of the touch electrode;
the touch signal control sub-unit is connected with the touch scanning line and the touch readout line respectively, the touch signal control sub-unit outputs touch sensing signals modulated by the control signal through the touch readout line upon the touch scanning line transferring electrical signals.
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Accused Products
Abstract
Embodiments of the present invention disclose an in-cell touch screen panel and a display device, at least one gate signal lines is used as a touch scanning line, a touch readout line is disposed between adjacent columns of pixel units in the array substrate, and a touch unit is disposed in a region defined by the touch scanning line and the touch readout line; each touch unit includes a light sensing sub-unit, a touch electrode and a touch signal control sub-unit; the light sensing sub-unit is connected with the touch signal control sub-unit through the touch electrode, and the control signal output from the light sensing sub-unit varies with the variation of external light and coupling capacitance of the touch electrode; the touch signal control sub-unit is connected with the touch scanning line and the touch readout line respectively, the touch signal control sub-unit outputs the touch sensing signal modulated by the control signal through the touch readout line upon the touch scanning line transferring electrical signals. Compared with a single mode capacitive touch screen panel, the in-cell touch screen panel disclosed in embodiments of the present invention can improve the touch sensitivity of the touch screen panel.
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Citations
20 Claims
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1. An in-cell touch screen panel comprising an array substrate having a plurality of gate signal lines and a plurality of pixel units arranged in a matrix;
- wherein
at least one gate signal line of the array substrate is used as a touch scanning line; the array substrate has a touch readout line between adjacent colunms of pixel units; the array substrate has a touch unit located in a region defined by the touch scanning line and the touch readout line; the touch unit comprises a light sensing sub-unit, a touch electrode and a touch signal control sub-unit;
the light sensing sub-unit is connected with the touch signal control sub-unit through the touch electrode, a control signal output by the light sensing sub-unit to the touch signal control sub-unit varies with variation of external light and coupling capacitance of the touch electrode;
the touch signal control sub-unit is connected with the touch scanning line and the touch readout line respectively, the touch signal control sub-unit outputs touch sensing signals modulated by the control signal through the touch readout line upon the touch scanning line transferring electrical signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- wherein
Specification