Patent ID: 11874984
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. A manufacturing method for a touch display panel, the touch display panel comprising a substrate, and a touch display region and a peripheral region located on the substrate, the touch display region comprising a through hole region, a through hole detection region surrounding the through hole region and a transition connection region located between the through hole detection region and the peripheral region, the manufacturing method comprising:
forming a first metal layer on a substrate;
forming an insulating layer at a side of the first metal layer away from the substrate; and
forming a second metal layer on a side of the insulating layer away from the first metal layer, wherein
any one or more of the first metal layer and the second metal layer comprises an annular crack detection line, an annular isolation line, a transition crack detection line, a transition isolation line, an edge crack detection line and an edge isolation line;
the annular crack detection line and the annular isolation line are located in the through hole detection region, the transition crack detection line and the transition isolation line are located in the transition connection region, the edge crack detection line and the edge isolation line are located in the peripheral region, the annular crack detection line is electrically connected to the edge crack detection line by means of the transition crack detection line, the annular isolation line is electrically connected to the edge isolation line by means of the transition isolation line, the edge isolation line is electrically connected to a touch integrated circuit (IC) to input a shielding signal, and an orthographic projection of the edge isolation line on the substrate is located between an orthographic projection of the touch electrode on the substrate and an orthographic projection of the edge crack detection line on the substrate;
an orthographic projection of the transition isolation line on the substrate is located between an orthographic projection of the transition crack detection line on the substrate and the orthographic projection of the touch electrode on the substrate; and
an orthographic projection of the annular crack detection line on the substrate is a first annular shape, an orthographic projection of the annular isolation line on the substrate is a second annular shape, and a side of the first annular shape close to the second annular shape is within a range of a side of the second annular shape close to the first annular shape.