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DISPLAY PANEL AND DETECTION METHOD THEREOF, AND DISPLAY DEVICE

  • US 20200135112A1
  • Filed: 07/30/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/30/2018
  • Status: Active Grant
First Claim
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1. A display panel, comprising a sub-pixel and a detection circuit,wherein the sub-pixel comprises a pixel circuit and a light-emitting element, and the pixel circuit is connected to the light-emitting element and is configured to drive the light-emitting element to emit light;

  • the detection circuit comprises a detection signal terminal and a control voltage terminal, a first electrode of the light-emitting element is connected to the detection signal terminal, and a second electrode of the light-emitting element is connected to the control voltage terminal; and

    the detection circuit is configured to output a variable voltage, through the control voltage terminal, to the second electrode of the light-emitting element, the variable voltage comprises a first sub-voltage signal, and the detection circuit is further configured to detect an electrical parameter at the first electrode of the light-emitting element in a case where the first sub-voltage signal is applied to the second electrode of the light-emitting element.

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