US Patent 11232728 Display panel and crack detecting method thereof, display apparatus

A display panel and a crack detecting method, and a display device are disclosed. The display panel includes a display region and a peripheral region surrounding the display region, the peripheral region being provided with a crack detection circuit structure, the crack detection circuit structure including a detection circuit wire and a first detection switching circuit, the display panel includes a first sub-pixel and a first data line electrically connected to the first sub-pixel, a first end of the first data line is electrically connected to a first end of the detection circuit, a second end of the first data line is electrically connected to a second end of the detection circuit wire through the first detection switching circuit and the second end of the detection circuit wire is configured to receive a detection voltage.