Detection method of pixel circuit, driving method of display panel, and display device

A display device, comprising a pixel circuit and a control circuit, wherein

• the pixel circuit includes a driving transistor;
• and
• the control circuit is configured to execute a detection method comprising:
• in a first charge cycle, applying a first data voltage to a gate electrode of the driving transistor, acquiring a first sensing voltage at a first electrode of the driving transistor within a first duration after application of the first data voltage and before the driving transistor is switched off, and determining whether the first sensing voltage is equal to the reference sensing voltage, in which the reference sensing voltage is acquired in a reference charge cycle;
• in the reference charge cycle, the reference sensing voltage is acquired at the first electrode of the driving transistor within the first duration after the application of a reference data voltage to the gate electrode of the driving transistor and before the driving transistor is switched off;
• and the first data voltage is equal to the reference data voltage, wherein
• the reference charge cycle is in a shutdown state, and the first charge cycle is in a followed boot-up process after the reference charge cycle;
• or
• the reference charge cycle is in a boot-up state, and the first charge cycle is in a boot-up process after the reference charge cycle.