Patent ID: 11972629
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. The texture recognition apparatus according to claim 6, wherein a photosensitive element of each of the plurality of image sensors at least partially overlaps with one of the plurality of first openings; and the plurality of light shielding patterns are in one-to-one correspondence and at least partially overlap with the plurality of first openings;
with respect to one light shielding pattern and one first opening that are provided correspondingly, in the first direction parallel to the touch side surface, a length of the light shielding pattern is D, a length of the first opening is d2; and in the direction perpendicular to the touch side surface, a distance from the light shielding pattern to the light shielding layer is H, then:

D=d2+2H×tan θ1,

where θ1 is a minimum critical angle of the optical path for texture recognition.