公开(公告)号：US10901294B2

公开(公告)日：2021-01-26

申请号：US16826548

申请日：2020-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liangjia Zong ,  Lei Mao ,  Mi Wang ,  Han Zhao

IPC: G02F1/31 ,  G02B6/35 ,  G02F1/1337

Abstract: A liquid crystal on silicon, a wavelength selective switch, an alignment direction obtaining method, and a method for manufacturing a liquid crystal on silicon. The liquid crystal on silicon has a first pixel area, and a first liquid crystal located in the first pixel area. The first liquid crystal is deflected in a plane perpendicular to a first panel, and is deflected towards a first direction in a plane parallel to the first panel. An alignment direction of the first partial alignment film located in the first pixel area is deflected towards a second direction relative to a polarization direction of an incident beam, and the second direction is opposite to the first direction to reduce a loss of a deflected beam.