Invention Grant
- Patent Title: ZBD liquid crystal device and methods of operating such device
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Application No.: US16139413Application Date: 2018-09-24
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Publication No.: US10698284B2Publication Date: 2020-06-30
- Inventor: Nathan James Smith , Andrew Acreman
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Main IPC: G02F1/139
- IPC: G02F1/139 ; G09G3/36 ; G02F1/1337

Abstract:
A liquid crystal device (LCD) includes from the viewing side: a first electrode layer; a viewing side first liquid crystal (LC) alignment layer; an LC layer; a non-viewing side second LC alignment layer; and a second electrode layer; wherein one of the electrode layers is a common electrode layer and the other of the electrode layers is a segmented electrode layer, and at least one of the first and second LC alignment layers is a bistable alignment layer that is switchable between a first alignment state and a second alignment state. The LCD is operated by applying a first voltage pulse to the segmented electrode layer and applying a second voltage pulse to the common electrode layer (Vcom pulse), the first and second voltage pulses combining to form a resultant voltage pulse. The bistable alignment layer switches from the first alignment state to the second alignment state when a magnitude of the resultant voltage pulse exceeds a switching voltage threshold.
Public/Granted literature
- US20200096801A1 ZBD LIQUID CRYSTAL DEVICE AND METHODS OF OPERATING SUCH DEVICE Public/Granted day:2020-03-26
Information query
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