Patent ID: 11960164
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The method according to claim 1, wherein removing and partially collapsing the structure of the second trapezoidal truncated cone of the initial black matrix strips in the initial black matrix structure that protrudes from the cuboid, with the collapsed portion covering the structure of the first trapezoidal truncated cone that protrudes from the cuboid comprise:
heating the initial black matrix structure, and bombarding the initial black matrix structure with a plasma, so as to remove and partially collapse the structure of the second trapezoidal truncated cone of the initial black matrix strips in the initial black matrix structure that protrudes from the cuboid, with the collapsed portion covering the structure of the first trapezoidal truncated cone that protrudes from the cuboid.