Display device and detection method for the display device

A detection method for a display device, the display device having a display area and a non-display area, wherein the display device comprises:

• a pixel array disposed in the display area that comprises a plurality of sub-pixels;
• a plurality of switching transistors disposed in the non-display area, which are electrically connected to a plurality of columns of sub-pixels of the pixel array in one-to-one correspondence;
• a plurality of detection lines disposed in the non-display area, wherein each of the plurality of detection lines is electrically connected to a part of the plurality of switching transistors, and is configured to transmit a level signal to a switching transistor electrically connected to the each of the plurality of detection lines such that sub-pixels of the pixel array electrically connected to the switching transistor do not emit light in a case where the each of the plurality of detection lines is not broken, and wherein the sub-pixels of the pixel array electrically connected to the switching transistor emit light to display a bright line having a corresponding color in a case where the each of the plurality of detection lines is broken, each of the plurality of detection lines is electrically connected to a part of the plurality of switching transistors, wherein sub-pixels corresponding to all of the switching transistors electrically connected to the plurality of detection lines have a same emission color;
• and a plurality of driving lines electrically connected to first electrodes of other switching transistors except for the part of the plurality of switching transistors electrically connected to the plurality of detection lines;
• the detection method comprising:
• applying an ON signal to the plurality of switching transistors;
• receiving the level signal by the plurality of detection lines;
• determining whether a crack is present in the non-display area according to a characteristic information of the bright line appearing in a display screen of the display area;
• and
• determining a position of the crack in the non-display area according to a position of the bright line appearing in the display screen.