Embedded touch display panel, driving method thereof and display device

A touch display panel, embedded technology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve the problems of driving ability dependence, missed detection, increased power consumption and cost, etc.
CN110750170AActive Publication Date: 2020-02-04KUSN INFOVISION OPTOELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KUSN INFOVISION OPTOELECTRONICS
Publication Date
2020-02-04

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Abstract

The invention discloses an embedded touch display panel, a driving method thereof and a display device, and belongs to the technical field of display. The embedded touch control display panel comprises a plurality of scanning lines, a plurality of touch control connecting lines and a plurality of common electrodes arranged in an array, the touch control connecting lines and the common electrodes are connected in a one-to-one correspondence mode, and the working stage of the embedded touch control display panel comprises a detection stage and a display stage. The embedded touch display panel further comprises a lower switching circuit and an upper switching circuit. The first end of each touch connecting line is connected with the lower switching circuit, and the second end of each touch connecting line is connected with the upper switching circuit; the lower switch circuit and the upper switch circuit input consistent test common signals to the two ends of the same touch control connecting line in the detection stage, each common electrode receives signals transmitted by the upper touch control connecting line and the lower touch control connecting line, the influence of scanning signal coupling on the signals on the touch control connecting lines is reduced, and transverse lines are prevented from appearing on a display image.
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Description

technical field

[0001] The present invention relates to the field of display technology, in particular to an in-cell touch display panel, a driving method thereof, and a display device. Background technique

[0002] At present, in the field of display technology, touch display panels with touch functions have become more and more mainstream display products. Touch display panels are mainly divided into in-cell, on-cell and Plug-in.

[0003] The existing in-cell touch display panel includes a plurality of common electrodes arranged in an array, the common electrodes are multiplexed as touch electrodes, and each common electrode is electrically connected to the integrated circuit board through a touch connection line. When the picture is displayed normally, since the signal output by the integrated circuit board will be delayed and attenuated when it is transmitted on the touch connection line, and the signals input to each common electrode are independent, the signal receive...

Claims

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