Invention Grant
- Patent Title: Light control device and illumination device
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Application No.: US17881610Application Date: 2022-08-05
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Publication No.: US11880109B2Publication Date: 2024-01-23
- Inventor: Takeo Koito , Tae Kurokawa , Masashi Mitsui
- Applicant: Japan Display Inc.
- Applicant Address: JP Tokyo
- Assignee: JAPAN DISPLAY INC.
- Current Assignee: JAPAN DISPLAY INC.
- Current Assignee Address: JP Tokyo
- Agency: XSENSUS LLP
- Priority: JP 20019706 2020.02.07
- Main IPC: G02F1/1347
- IPC: G02F1/1347 ; G02F1/137 ; G02F1/1335 ; G02F1/13357 ; G02F1/1343 ; G02F1/29

Abstract:
According to one embodiment, a light control device includes a first liquid crystal cell, a second liquid crystal cell, and a polarization conversion element disposed between the first liquid crystal cell and the second liquid crystal cell. One substrate of each of the first liquid crystal cell and the second liquid crystal cell includes an insulating substrate, and first to fourth electrodes arranged on the insulating substrate and formed in a strip shape. The electric potential difference between the first electrode and the second electrode, the electric potential difference between the second electrode and the third electrode, and the electric potential difference between the third electrode and the fourth electrode are different from each other.
Public/Granted literature
- US11921384B2 Light control device and illumination device Public/Granted day:2024-03-05
Information query
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