Invention Grant
- Patent Title: Method and device for multistate interferometric light modulation
- Patent Title (中): 多态干涉光调制方法和装置
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Application No.: US13398636Application Date: 2012-02-16
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Publication No.: US08970939B2Publication Date: 2015-03-03
- Inventor: Clarence Chui , William J. Cummings , Brian J. Gally
- Applicant: Clarence Chui , William J. Cummings , Brian J. Gally
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM MEMS Technologies, Inc.
- Current Assignee: QUALCOMM MEMS Technologies, Inc.
- Current Assignee Address: US CA San Diego
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: G02B26/00
- IPC: G02B26/00 ; G02B26/12 ; G09G3/34

Abstract:
A multi-state light modulator comprises a first reflector. A first electrode is positioned at a distance from the first reflector. A second reflector is positioned between the first reflector and the first electrode. The second reflector is movable between an undriven position, a first driven position, and a second driven position, each having a corresponding distance from the first reflector. In one embodiment, the three positions correspond to reflecting white light, being non-reflective, and reflecting a selected color of light. Another embodiment is a method of making the light modulator. Another embodiment is a display including the light modulator.
Public/Granted literature
- US20120139976A1 METHOD AND DEVICE FOR MULTISTATE INTERFEROMETRIC LIGHT MODULATION Public/Granted day:2012-06-07
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