公开(公告)号：US20210168948A1

公开(公告)日：2021-06-03

申请号：US17171126

申请日：2021-02-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiming TU ,  Wangchun LYU ,  Heshuai SI

IPC: H05K5/00 ,  H05K5/02 ,  H05K5/03

Abstract: A housing is provided, the housing includes a housing substrate and at least one double-sided composite texture film located on one side of an inner surface of the housing substrate. The double-sided composite texture film includes a first substrate, a first texture layer located on a first surface of the first substrate, and a second texture layer located on a second surface of the first substrate. The first surface of the first substrate is close to the housing substrate, and the second surface is away from the housing substrate. The first texture layer has a first texture pattern that includes a plurality of grooves and a plurality of bosses. The second texture layer has a second texture pattern that includes a plurality of grooves and a plurality of bosses.