A method for detecting the conductivity of flexible circuit substrate and FPC electrode

By designing a flexible circuit substrate, using gate lines to control the switch and contact electrodes, the conductivity of the FPC electrode is detected, and the loss of conductivity and electrode corrosion caused by PI coating diffusion is solved, and the effect of reducing the inflow of poor display panels is achieved.

CN115175444BActive Publication Date: 2025-04-25BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
CN202210992075.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-17
Publication Date
2025-04-25
Estimated Expiration
2042-08-17

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Abstract

The embodiment of the present application provides a method for detecting the conductive state of a flexible circuit substrate and an FPC electrode, wherein the substrate includes: a switch, at least one row of contact electrodes and at least one row of FPC electrodes; the contact electrodes are arranged on the FPC electrodes, and at least one contact electrode is arranged on one FPC electrode; one contact electrode corresponds to one switch; the first end of the switch is connected to the contact electrode corresponding to itself, the second end of the switch is connected to the first signal input end, and the control end of each switch corresponding to the contact electrodes in the same row is connected to the same type of gate line. The gate line is used to control the state of each switch corresponding to the contact electrodes in the same row, thereby controlling the signal input of the first signal input end, and performing row-by-row detection, and obtaining the conductive state of the FPC electrode according to the current value detected from the contact electrode.
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Citation Information

Patent Citations

  • Flexible printed circuit board detection device and method

    CN106771980A

  • Touch display device and test method thereof

    CN111781540A