Patent ID: 11922838
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 18:
19. A crack detection method of a display panel, wherein the display panel comprises a display region and a peripheral region located at a periphery of the display region, the display panel comprises a substrate, a first insulating structure layer located on a side of the substrate, a first crack detection line located on a side of the first insulating structure layer away from the substrate, a second insulating structure layer located on a side of the first crack detection line away from the substrate, and a second crack detection line located on a side of the second insulating structure layer away from the substrate,
the peripheral region comprises a first region provided with a bonding region and a third region and a fourth region oppositely disposed on two sides of the first region, the first crack detection line comprises a first series line and a second series line, the second crack detection line comprises a third series line and a fourth series line, the first series line comprises a first endpoint and a third endpoint located in the first region, and the first series line is located in the first region and the third region, the second series line comprises a second endpoint and a fourth endpoint located in the first region, and the second series line is located in the first region and the fourth region, the third series line comprises a seventh endpoint and a ninth endpoint located in the first region, and the third series line is located in the first region and the third region, the fourth series line comprises an eighth endpoint and a tenth endpoint located in the first region, and the fourth series line is located in the first region and the fourth region,
wherein the crack detection method comprises:
applying detection signals to the third endpoint, the fourth endpoint, the ninth endpoint, and the tenth endpoint;
receiving a first output signal of the first endpoint, a third output signal of the second endpoint, a second output signal of the seventh endpoint, and a fourth output signal of the eighth endpoint, determining whether a position where the first series line is located cracks according to the first output signal, determining whether a position where the second series line is located cracks according to the third output signal, determining whether a position where the third series line is located cracks according to the second output signal, and determining whether a position where the fourth series line is located cracks according to the fourth output signal.