In-cell touch panel and display device
First Claim
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1. An in-cell touch panel, comprising:
- a first substrate and a second substrate arranged opposite to each other, a pixel electrode layer disposed on one side of the second substrate facing the first substrate, and a touch detection chip, whereinthe pixel electrode layer includes a plurality of pixel electrodes and self-capacitance electrodes insulated from each other and disposed in a same layer;
the pixel electrodes are arranged in an array;
a pattern of each self-capacitance electrode is disposed at a gap between two adjacent pixel electrodes; and
the touch detection chip is configured to determine a touch position by detection of capacitance variation of the self-capacitance electrodes in a touch period,wherein the pattern of the self-capacitance electrode is a mesh structure including a plurality of mesh holes; and
the plurality of pixel electrodes correspond to the plurality of mesh holes, andthe in-cell touch panel, further comprising;
a plurality of leads configured to connect the self-capacitance electrodes to the touch detection chip.
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Abstract
An in-cell touch panel and a display device are provided. Self-capacitance electrodes arranged in the same layer as pixel electrodes are disposed at gaps between the pixel electrodes of the touch panel in accordance with the self-capacitance principle. A touch detection chip can determine a touch position by detection of capacitance variation of the self-capacitance electrodes in a touch period. The touch panel does not need to add additional processes on the basis of the manufacturing process of an array substrate and hence can reduce the manufacturing cost and improve the productivity.
39 Citations
16 Claims
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1. An in-cell touch panel, comprising:
- a first substrate and a second substrate arranged opposite to each other, a pixel electrode layer disposed on one side of the second substrate facing the first substrate, and a touch detection chip, wherein
the pixel electrode layer includes a plurality of pixel electrodes and self-capacitance electrodes insulated from each other and disposed in a same layer;
the pixel electrodes are arranged in an array;
a pattern of each self-capacitance electrode is disposed at a gap between two adjacent pixel electrodes; and
the touch detection chip is configured to determine a touch position by detection of capacitance variation of the self-capacitance electrodes in a touch period,wherein the pattern of the self-capacitance electrode is a mesh structure including a plurality of mesh holes; and
the plurality of pixel electrodes correspond to the plurality of mesh holes, andthe in-cell touch panel, further comprising;
a plurality of leads configured to connect the self-capacitance electrodes to the touch detection chip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- a first substrate and a second substrate arranged opposite to each other, a pixel electrode layer disposed on one side of the second substrate facing the first substrate, and a touch detection chip, wherein
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9. A display device, comprising an in-cell touch panel, the in-cell touch panel, comprising:
- a first substrate and a second substrate arranged opposite to each other, a pixel electrode layer disposed on one side of the second substrate facing the first substrate, and a touch detection chip, wherein
the pixel electrode layer includes a plurality of pixel electrodes and self capacitance electrodes insulated from each other and disposed in a same layer;
the pixel electrodes are arranged in an array;
a pattern of each self-capacitance electrode is disposed at a gap between two adjacent pixel electrodes; and
the touch detection chip is configured to determine a touch position by detection of capacitance variation of the self-capacitance electrodes in a touch period,wherein the pattern of the self-capacitance electrode is a mesh structure including a plurality of mesh holes; and
the plurality of pixel electrodes correspond to the plurality of mesh holes, andthe in-cell touch panel, further comprising;
a plurality of leads configured to connect the self-capacitance electrodes to the touch detection chip. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
- a first substrate and a second substrate arranged opposite to each other, a pixel electrode layer disposed on one side of the second substrate facing the first substrate, and a touch detection chip, wherein
Specification