- 专利标题: METHOD AND SYSTEM FOR PATTERNING A LIQUID CRYSTAL LAYER
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申请号: US18482896申请日: 2023-10-08
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公开(公告)号: US20240036516A1公开(公告)日: 2024-02-01
- 发明人: Ravi Kumar KOMANDURI , Chulwoo OH
- 申请人: Magic Leap, Inc.
- 申请人地址: US FL Plantation
- 专利权人: Magic Leap, Inc.
- 当前专利权人: Magic Leap, Inc.
- 当前专利权人地址: US FL Plantation
- 主分类号: G03H1/02
- IPC分类号: G03H1/02
摘要:
An optical master is created by using a nanoimprint alignment layer to pattern a liquid crystal layer. The nanoimprint alignment layer and the liquid crystal layer constitute the optical master. The optical master is positioned above a photo-alignment layer. The optical master is illuminated and light propagating through the nanoimprinted alignment layer and the liquid crystal layer is diffracted and subsequently strikes the photo-alignment layer. The incident diffracted light causes the pattern in the liquid crystal layer to be transferred to the photo-alignment layer. A second liquid crystal layer is deposited onto the patterned photo-alignment layer, which subsequently is used to align the molecules of the second liquid crystal layer. The second liquid crystal layer in the patterned photo-alignment layer may be utilized as a replica optical master or as a diffractive optical element for directing light in optical devices such as augmented reality display devices.
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