Invention Grant
- Patent Title: MEMS display device with a vertical hinge
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Application No.: US17280941Application Date: 2019-09-29
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Publication No.: US12077427B2Publication Date: 2024-09-03
- Inventor: Fusao Ishii , Victor Stone , Toshitaka Torikai
- Applicant: IGNITE, Inc. , Fusao Ishii , Victor Stone , Toshitaka Torikai
- Applicant Address: JP PA Tokyo
- Assignee: IGNITE, Inc.
- Current Assignee: IGNITE, Inc.
- Current Assignee Address: JP Minato-Ku Tokyo
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- International Application: PCT/US2019/053713 2019.09.29
- International Announcement: WO2020/069482A 2020.04.02
- Date entered country: 2021-03-29
- Main IPC: B81B3/00
- IPC: B81B3/00 ; G02B26/08

Abstract:
A micro-electro-mechanical systems device includes a substrate, each of an electronic circuit, an etch stop layer, and a hinge base mounted on the substrate, and an electrode connected to the circuit. A hinge is mounted on the base and is made of a doped semiconductor. The hinge includes a vertical support that extends vertically from the base, and a horizontally-extending hinge tab contacts the vertical support. The device also includes a movable mirror and a mirror via that couples the mirror to the hinge tab. The mirror is electrostatically attracted to the electrode responsive to application of a voltage between the electrode and the mirror, and movement of the mirror changes a relative position between the hinge tab and the vertical support. A stopper is mounted on the substrate that mechanically stops the movement of the mirror before the mirror contacts the electrode or etch stop layer.
Public/Granted literature
- US20210340005A1 A MEMS Display Device With A Vertical Hinge Public/Granted day:2021-11-04
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