Patent ID: 11901246
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A method for detecting hole accuracy of a display panel, comprising:
taking a picture of the display panel with an optical detector, wherein the display panel comprises a through hole, an isolation area and a display area, the isolation area is around the through hole, the isolation area is between the through hole and the display area, the isolation area comprises at least two graphic marks for detecting hole accuracy of the through hole, the at least two graphic marks are spaced apart from each other around the through hole, and the picture taken by the optical detector comprises the graphic marks and the through hole;
determining minimum distances between an edge of the through hole and each of the graphic marks on the picture; and
determining the hole accuracy according to the minimum distances between the edge of the through hole and each of the graphic marks,
wherein the isolation area is provided with at least one circle of isolation columns, each circle of isolation columns is arranged around the through hole, and the graphic marks are between the through hole and one circle of isolation columns proximate to the through hole.