Invention Grant
- Patent Title: System and methods for using modified driving waveforms to inhibit acoustic noise during driving of a liquid crystal polarization rotator
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Application No.: US14103002Application Date: 2013-12-11
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Publication No.: US09958695B2Publication Date: 2018-05-01
- Inventor: Dmytro Yu Reznikov , Mark F. Flynn , Chun Wun Yeung
- Applicant: zSpace, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: zSpace, Inc.
- Current Assignee: zSpace, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Meyertons Hood Kivlin Kowert & Goetzel, P.C.
- Agent Jeffrey C. Hood
- Main IPC: G02B27/26
- IPC: G02B27/26 ; H04N13/04

Abstract:
In some embodiments, a system and/or method may operate a liquid crystal device. The method may include increasing a voltage provided to a driven level to a liquid crystal addressable element of the liquid crystal device. Said increasing may be performed over a time period greater than 1 ms. The liquid crystal addressable element may be in a driven state at the driven level. The method may include reducing the provided voltage to a relaxed level. The liquid crystal addressable element may be in a relaxed state at the relaxed level. Said increasing the voltage over the time period to the driven level may result in a reduced acoustical noise associated with the provided voltage. In some embodiments, the liquid crystal device may include a three-dimensional (3D) display.
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