- Patent Title: Liquid crystal lens, head mounted display and polarized sunglasses
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Application No.: US17969839Application Date: 2022-10-20
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Publication No.: US11852952B2Publication Date: 2023-12-26
- Inventor: Naru Usukura , Hiroaki Asagi , Yasuhiro Haseba , Kiyoshi Minoura
- Applicant: Sharp Display Technology Corporation
- Applicant Address: JP Kameyama
- Assignee: SHARP DISPLAY TECHNOLOGY CORPORATION
- Current Assignee: SHARP DISPLAY TECHNOLOGY CORPORATION
- Current Assignee Address: JP Kameyama
- Agency: KEATING & BENNETT, LLP
- Priority: JP 21175563 2021.10.27 JP 22110534 2022.07.08
- Main IPC: G02F1/29
- IPC: G02F1/29 ; G06F1/16 ; G02C7/10 ; G02C7/08

Abstract:
Provided is a liquid crystal lens including: a first substrate; a second substrate facing the first substrate; and a liquid crystal layer held between the first substrate and the second substrate and containing liquid crystal molecules. The first substrate includes a Fresnel lens and a first electrode sequentially toward the liquid crystal layer. The second substrate includes a second electrode. The Fresnel lens includes a Fresnel-shaped part including annular lens surfaces in a concentric circle pattern and a flat part including a flat surface that extends in a radial direction of the concentric circle and intersects at least one of the annular lens surfaces. The annular lens surfaces are on a liquid crystal layer-facing surface of the Fresnel-shaped part and defines an uneven surface. The flat surface is on the liquid crystal layer-facing surface of the flat part.
Public/Granted literature
- US20230134662A1 LIQUID CRYSTAL LENS, HEAD MOUNTED DISPLAY AND POLARIZED SUNGLASSES Public/Granted day:2023-05-04
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