Invention Grant
- Patent Title: Broadband and wide viewing angle waveplate having pi-cell
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Application No.: US17163414Application Date: 2021-01-30
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Publication No.: US11561437B2Publication Date: 2023-01-24
- Inventor: Afsoon Jamali , Yingfei Jiang
- Applicant: Meta Platforms Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Meta Platforms Technologies, LLC
- Current Assignee: Meta Platforms Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Millburn IP PLLC
- Main IPC: G02F1/13363
- IPC: G02F1/13363
Abstract:
An optical element is provided. The optical element includes a positive-C film including a liquid crystal (“LC”) layer. The optical element also includes a positive-A film. The optical element also includes a negative biaxial retardation film disposed between the positive-A film and the positive-C film.
Public/Granted literature
- US20210181557A1 BROADBAND AND WIDE VIEWING ANGLE WAVEPLATE HAVING PI-CELL Public/Granted day:2021-06-17
Information query
IPC分类:
